The purpose of the present RA II and RA V Survey on the Use of Satellite Data 2018 is to collect up-to-date information on WMO Members’ capabilities and needs regarding the use of satellite data in meteorological, climate, water and related environmental applications.
The survey was conducted under the leadership of the WMO Regional Coordination Groups on Satellite Data Requirements for Regional Association II and Regional Association V, that are the Regional Association II World Meteorological Organization (WMO) Integrated Global Observing System (WIGOS). Project to Develop Support for ...Published by: WMO ; 2020 (2020 edition)
The purpose of the present RA II and RA V Survey on the Use of Satellite Data 2018 is to collect up-to-date information on WMO Members’ capabilities and needs regarding the use of satellite data in meteorological, climate, water and related environmental applications.
The survey was conducted under the leadership of the WMO Regional Coordination Groups on Satellite Data Requirements for Regional Association II and Regional Association V, that are the Regional Association II World Meteorological Organization (WMO) Integrated Global Observing System (WIGOS). Project to Develop Support for National Meteorological and Hydrological Services (NMHSs) in Satellite Data, Products and Training and the Regional Association V Task Team on Satellite Utilization.
Collection(s) and Series: SP- No. 14
Format: Digital (Free)Purpose of this web portal is to enable Members to share their experience and knowledge on Instruments and Methods of Observation, thus facilitating others' everyday work. The portal contains links to many useful resources shared by WMO Members.Published by: WMO ; 2020
Purpose of this web portal is to enable Members to share their experience and knowledge on Instruments and Methods of Observation, thus facilitating others' everyday work. The portal contains links to many useful resources shared by WMO Members.
Format: Digital (Free) (1 webpage with links)
Tags: Observations ; Meteorological instrument ; Hydrometeorological instrument ; Automated Weather Observing System (AWOS) ; Global Space-based Inter-Calibration System (GSICS) ; WMO Integrated Global Observing System (WIGOS) ; Text/ Reading ; OBS - Personnel installing and maintaining instrumentation ; OBS - Personnel managing observing programmes and networks ; OBS - Personnel performing instrument calibrations ; OBS - Personnel performing meteorological observations Add tagThis is the first edition of the Manual on the WMO Integrated Global Observing System (WMO-No. 1160), developed following the decision of the Sixteenth World Meteorological Congress to proceed with the implementation of that System (WIGOS). It was approved by the Seventeenth World Meteorological Congress.
The Manual was developed by the Executive Council through its Inter-Commission Coordination Group on WIGOS, specifically its Task Team on WIGOS Regulatory Material. It is the result of a collaborative approach involving all interested technical commissions under the leadership of the C ...Published by: WMO ; 2019 (2019 edition)
This is the first edition of the Manual on the WMO Integrated Global Observing System (WMO-No. 1160), developed following the decision of the Sixteenth World Meteorological Congress to proceed with the implementation of that System (WIGOS). It was approved by the Seventeenth World Meteorological Congress.
The Manual was developed by the Executive Council through its Inter-Commission Coordination Group on WIGOS, specifically its Task Team on WIGOS Regulatory Material. It is the result of a collaborative approach involving all interested technical commissions under the leadership of the Commission for Basic Systems (CBS) and the Commission for Instruments and Methods of Observation (CIMO).
The Manual is designed: (a) To specify the obligations of Members in the implementation and operation of WIGOS; (b) To facilitate cooperation in observations between Members; (c) To ensure adequate uniformity and standardization in the practices and procedures employed in achieving (a) and (b) above.
Collection(s) and Series: WMO- No. 1160
Language(s): English; Other Languages: French, Spanish, Russian, Arabic, Chinese, Japanese
Format: Digital (Free)
ISBN (or other code): 978-92-63-11160-9
Tags: Observations ; Meteorological instrument ; Hydrometeorological instrument ; Automated Weather Observing System (AWOS) ; Global Space-based Inter-Calibration System (GSICS) ; WMO Integrated Global Observing System (WIGOS) ; Manual ; OBS - Personnel installing and maintaining instrumentation ; OBS - Personnel managing observing programmes and networks ; OBS - Personnel performing instrument calibrations ; OBS - Personnel performing meteorological observations ; Technical Publications Add tagFrench, Spanish and Arabic versions still in preparationPublished by: WMO ; 2019 (2019 edition)
French, Spanish and Arabic versions still in preparation
Collection(s) and Series: WMO- No. 1192
Language(s): English; Other Languages: French, Spanish, Russian, Chinese, Arabic
Format: Digital (Free)
ISBN (or other code): 978-92-63-11192-0
Archives access: 2017-[...]
Tags: Observations ; Meteorological instrument ; Automated Weather Observing System (AWOS) ; Global Space-based Inter-Calibration System (GSICS) ; WMO Integrated Global Observing System (WIGOS) ; Information management ; OBS - Personnel installing and maintaining instrumentation ; OBS - Personnel managing observing programmes and networks ; Technical Publications Add tagThe workshop presentations included research organizations and NMHS experts discussing the challenges and successes experienced using UAVs in field campaigns collecting data in support of environmental and meteorological applications. The challenges included airspace use regulations and technical capabilities of the UAVs. UAV industry representatives spoke to the workshop audience on the types and capabilities of UAVs and about their collaboration in field campaigns with research organizations and NMHS represented at the workshop. IATA and other experts informed the workshop audience of the va ...Published by: WMO ; 2019
Commission for Basic Systems and Commission for Instruments and Methods of Observation: Workshop on Use of Unmanned Aerial Vehicles (UAV) for Operational Meteorology
The workshop presentations included research organizations and NMHS experts discussing the challenges and successes experienced using UAVs in field campaigns collecting data in support of environmental and meteorological applications. The challenges included airspace use regulations and technical capabilities of the UAVs. UAV industry representatives spoke to the workshop audience on the types and capabilities of UAVs and about their collaboration in field campaigns with research organizations and NMHS represented at the workshop. IATA and other experts informed the workshop audience of the various national and international airspace regulations.
The plenary sessions focused on the potential and requirements for operational use of UAVs and whether NMHS would operate UAVs or form partnerships with private/public companies and organizations to acquire the UAV data. The WICAP financial framework of cost sharing amongst multiple countries in one or more WMO regions was presented as a model for cost sharing if UAV data was purchased from private companies. The workshop closed after identifying key outcomes, recommendations, and future activities.
Format: Digital (Free)
Tags: Capacity development ; WMO Integrated Global Observing System (WIGOS) ; Global Space-based Inter-Calibration System (GSICS) ; Automated Weather Observing System (AWOS) ; Meteorological instrument ; Observations ; Weather service ; Training ; OBS - Personnel managing observing programmes and networks ; OBS - Personnel installing and maintaining instrumentation ; OBS - Personnel performing meteorological observations ; Commission for Basic Systems (CBS) ; Commission for Instruments and Methods of Observation (CIMO) Add tagWorld Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2019This report is produced by the GSRN Task Team and provides a proposal for the establishment of a GCOS Surface Reference Network, with the support of the GCOS programme, relevant programmes at WMO and the Bureau International des Poids et Mesures (BIPM). It outlines the next steps required for the implementation of a GSRN: approval of the proposed GSRN by relevant WMO programmes, the GCOS programme and other sponsors, solicitation of offers to host and staff appropriately the proposed Lead Centre, and the selection of suitable sites for an initial GSRN.PermalinkWant to know about COSMIC, and how satellite signals can provide information about Earth's atmosphere? This video provides anyone interested in the topic with a brief overview of the Constellation Observing System for Meteorology, Ionosphere, and Climate, called COSMIC. Targeted to students and teachers in Grades 5-9 but accessible to anyone, the video introduces the latest COSMIC mission (COSMIC-2), which uses satellites orbiting near Earth to measure how the atmosphere affects signals from global positioning system (GPS) satellites high above the surface. This technique is called radio occul ...PermalinkThe Satellite Foundational Course for JPSS (SatFC-J) is a series of short lessons focused on topics related to microwave remote sensing and Joint Polar Satellite System instruments and capabilities. Hosted by the Cooperative Institute for Research in the Atmosphere (CIRA), this resource provides access to the full set of course lessons, which were developed specifically for National Weather Service (NWS) forecasters. The lessons provide foundational training to help forecasters and decision makers maximize the utility of the U.S.’ new-generation polar-orbiting environmental satellites. The cou ...PermalinkThis lesson summarizes the science and techniques used to measure atmospheric wind. It presents an overview of the main sensor types for wind, including mechanical, electronic, and drifting-position sensors as well as sensors relying on impact pressure and sensors utilizing timing or Doppler shifts. The advantages and limitations of the sensor types and information about uncertainty and errors are reviewed with a focus on understanding which sensors might be best for particular applications. The lesson concludes with wind measurement applications including turbulence profiles, turbulence flux ...PermalinkWorld Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2019Action A24 of the GCOS Implementation Plan (GCOS-200), calls for the implementation of an archive for radar reflectivities. The Commission for Basic Systems (CBS) at its Sixteenth session (WMO-1183) endorsed the GCOS Implementation Plan and “Decides to support Members, as appropriate, in the implementation of the actions identified in the GCOS Implementation Plan”. EC-69 (WMO, 2017 - WMO, 1196) invited members “To work towards the full implementation of the Global Climate Observing System (GCOS) implementation plan.”
At the 22nd Session of the GCOS/WCRP Atmospheric Observation Panel for ...PermalinkThe World Meteorological Organization (WMO) commissioned the WMO 2016 Survey on the Use of Satellite Data to collect information on the availability and use of satellite data and products for meteorological and related environmental applications by users globally, and to identify obstacles and areas for improvement. WMO carries out this global Survey every four years, and the results from the previous 2012 Survey1 are used as a baseline in this report wherever possible.PermalinkThe first edition of this guide was published in 1950.PermalinkThis handbook is a guide to using satellite telecommunication systems and is provided as an attachment to the Guide to the WMO Information System (WMO-No. 1061). It is intended for scientists and managers who are considering using satellite communications to collect data from remote instrumentation located either on land or at sea. The handbook aims to provide an overview of the state of the market at the time of writing (April 2018) so that users can quickly identify which satellite services are appropriate for their needs. Since the market is evolving rapidly, an online version will be made ...PermalinkThis report describes the intercomparison in detail: the instruments, the participants, the experimental setup, method and procedure, the data analysis technique used and the results. It is clear from the results that all of the participating instruments have been well maintained and remained stable since the previous intercomparison, which augers well for all radiation measurements within RA II and RA V. All participants were able to return home with newly derived WRR reduction factors for their instruments.PermalinkPermalinkThis listing of multilingual training materials for the GOES-R series includes both foundational lessons and quick guides developed by various partners at the request of the U.S. National Weather Service and NESDIS. The selections included here represent materials translated to Spanish and Portuguese. Training contributors include COMET, RAMMB/CIRA, CIMSS, and SPoRT. Translation contributors/reviewers include the Servicio Meteorológico Nacional (SMN) in Argentina and the University of São Paulo in Brazil.PermalinkThis lesson provides information about current science and technologies for measuring atmosphere pressure. The lesson begins by reviewing the key physical laws governing atmospheric pressure, including Dalton's Law of Partial Pressures. Then, it explores typical requirements and uncertainty parameters related to atmospheric pressure sensors and provides details about the components of pressure sensors, including fluidic, mechanical, and electronic transducers. The lesson is part of the Instrumentation and Measurement of Atmospheric Parameters course series.PermalinkThis resource demonstrates the variety of satellite imagery and products accessible through the Community Satellite Processing Package (CSPP). Two videos, the first focused on imagery applications and the second on microwave applications, provide an overview of the types of weather and environmental information available through CSPP. Using CSPP, forecasters and others needing timely access to data can download and display imagery and products from Joint Polar Satellite System (JPSS) instruments. The resource provides some background information for obtaining and using the CSPP software, which ...PermalinkPermalinkThe key aims of this meeting were to consolidate important activities and plans for completing deliverables within the IPET’s work plan ahead of the upcoming session of CIMO in 2018. In particular, the IPET focused on reinvigorating activities and tasks towards the development of a Best Practices Guide on Operational Weather Radar. The team spent several sessions on developing the improved structure of the guide and drafting and organising materials under that structure. Additionally team members reported on the status and progress of other tasks in the work plan, including the successful comp ...PermalinkThis document describes the underpinning skills that support the WMO competencies that relate to the use of satellite data by operational meteorologists.Permalink本文件介绍了可支持业务气象工作者使用卫星资料的WMO能力领域的基础技能。这些技能包括：PermalinkPermalinkВ настоящем документе описаны фундаментальные навыки, подкрепляющие компетенции ВМО, связанные с использованием спутниковых данных оперативными метеорологами.PermalinkLe présent document décrit le socle d’aptitudes qui sous‑tend les champs de compétence de l’Organisation météorologique mondiale (OMM) relatifs à l’utilisation des données satellitaires par les météorologues des services d’exploitation.PermalinkEl presente documento describe las aptitudes fundamentales en apoyo de las competencias de la Organización Meteorológica Mundial (OMM) relativas al uso de datos satelitales por meteorólogos de los servicios de operaciones.PermalinkPermalinkPermalinkPermalinkPermalinkPermalinkGuidelines for managing changes in climate observation programmes, with a set of recommended practices by which such changes can be managed, have already been published (WMO, 2007). This guidance note will focus on those AWSs likely to form part of long-term climate records. These will normally be owned by NMHSs or associated agencies, or sometimes by third parties (such as aviation, agriculture or road transport agencies) under standards endorsed by the NMHSs. Experience shows that private AWSs can be useful for some climate purposes (such as providing information on individual local-scale ex ...PermalinkIt this report, METEO-Cert and its application is described. The METEO-Cert process assigns qualitative flags to each station and its instruments. Those qualitative flags provide valuable information on the applicability of the measured data and help to identify potential improvement of the station’s exposure.PermalinkThis lesson teaches the basics of satellite image interpretation to forecasters, meteorology students, and other interested learners, with an emphasis on the African region. It begins by briefly describing visible, infrared, and water vapour channels, as well as RGBs and derived products. From there, it teaches learners how to interpret clouds and surface features using various channels and products. This sets the stage for the final section, where learners practice identifying features using assorted imagery and products. The lesson uses Meteosat Second Generation imagery over Africa and, to ...PermalinkGravity is an important part of geodesy, with implications for height measurements and many other applications. In this module, we explore the concept of equipotential surfaces and relate them to gravity. Then we discuss geodetic applications that rely on accurate gravity measurements, including leveling surveys and floodplain mapping. We introduce a special surface based on gravity, called the gravimetric geoid, and explain why we want to use it as a reference datum. We discuss how to measure Earth’s gravity and introduce you to the National Geodetic Survey’s GRAV-D project, including how and ...PermalinkThese free training resources include video tutorials as well as case studies with accompanying data and imagery. The resources introduce the new generation of aerosol products available from the JPSS series of polar-orbiting satellites (SNPP/VIIRS) and the GOES-R series of geostationary satellites (GOES-16/ABI). Users will learn about the types of satellite aerosol products available, including aerosol optical depth/thickness (AOD/AOT) and aerosol detection (smoke/dust masks), as well as complimentary satellite products, such as fire radiative power (FRP) hotspots and visible color imagery (R ...PermalinkThis lesson offers a comprehensive overview of temperature measurement as related to the atmosphere, bodies of water, soils, and other parts of Earth’s surface. The lesson begins by defining temperature and why it is an important property to characterize. It provides details about the properties and characteristics of sensors used for temperature measurements and the advantages and disadvantages of different sensors depending on the application. Lastly, the lesson outlines the methods used for measuring different types of temperature, from soil to the free atmosphere.PermalinkThis lesson provides an overview of basic weather processes, beginning with how the distribution of incoming solar energy helps to establish Earth’s atmospheric circulations. Learners will gain an understanding of the differences between weather and climate, and how Earth’s winds tend to have dominant patterns determined by region. An introduction to atmospheric stability, clouds, precipitation processes, and thunderstorm characteristics is also included, along with an introduction to weather impacts affecting aviation operations.PermalinkNCAR's Earth Observing Laboratory ; The COMET Program ; Millersville University - The University Corporation for Atmospheric Research, 2017This advanced lesson explores the performance characteristics of instrumentation used for meteorological measurements. Static performance characteristics are examined in the context of calibration, which offers a means to determine an instrument's response. Dynamic performance characteristics, including first and second order inputs, are discussed using three classic examples: step or impulse, ramp or time varying, and oscillatory inputs. The lesson provides information about the effects of representativeness and regional homogeneity on measurements, and also describes processes for obtaining ...PermalinkThe purpose of the WMO nowcasting guidelines presented here is to help National Meteorological and Hydrological Services (NMHSs) by providing them with information and knowledge on how to implement a nowcasting system with the resources available to them and an understanding of the current state of science and technology.PermalinkWorld Meteorological Organization (WMO) ; International Telecommunication Union (ITU) - WMO, 2017 (WMO-No. 1197)The Handbook provides comprehensive technical and operational information on current observation applications and systems and on the use of radio frequencies by meteorological systems, including meteorological satellites, radiosondes, weather radars, wind profiler radars and spaceborne remote sensing instruments. It is intended for the meteorological (i.e. weather, water and climate) and radiocommunication communities, including governmental institutions, industry as well as the general public.PermalinkThe First Session of the Commission for Instruments and Methods of Observations (CIMO), Inter-Programme Expert Team on Operational Weather Radars (IPET-OWR) was held over 13 to 16 March, 2017, at the Japan Meteorological Agency (JMA) headquarters in Tokyo, Japan. The session was kindly hosted by JMA and generously supported by Japan. The meeting was opened by the Director-General of the Japan Meteorological Agency, Dr Toshihiko Hashida, who highlighted Japan’s ongoing engagement in international operational weather radar activities, collaboration and capacity development. The session was chair ...PermalinkThe current publication presents, in an integrated manner, best practices for user-readiness projects performed by user organizations (for example, NMHSs) as well as for satellite development programmes in support of user readiness. Definitions of and a timeline for deliverables are presented that should be made available by the satellite development programmes to user-readiness projects. The best practices documented here therefore apply to both user organizations (section 3) and satellite operators (section 5). The primary audiences for this publication are Members of the Coordination Group ...PermalinkOrganización Meteorológica Mundial (OMM); Unión Internacional de Telecomunicaciones (ITU) - OMM, 2017 (OMM-No. 1197)El Manual contiene información técnica y operacional completa sobre las actuales aplicaciones y sistemas de observación y sobre la utilización de frecuencias radioeléctricas por sistemas meteorológicos, incluidos satélites meteorológicos, radiosondas, radares meteorológicos, radares de perfil del viento y sistemas de teledetección a bordo de vehículos espaciales. Está destinado a las comunidades meteorológica (es decir, la que estudia los fenómenos meteorológicos, los recursos hídricos y el clima) y de radiocomunicaciones, incluidas las instituciones gubernamentales, la industria y el público ...PermalinkOrganisation météorologique mondiale (OMM); Union internationale des télécommunications (ITU) - OMM, 2017 (OMM-No. 1197)Ce Manuel donne des informations techniques et opérationnelles complètes sur les systèmes et applications actuels d'observation et sur l'utilisation des fréquences radioélectriques par les systèmes météorologiques: satellites météorologiques, radiosondes, radars météorologiques, radars profileurs de vent, instruments de télédétection spatiale, etc. Il s'adresse à tous les membres intéressés des communautés de la météorologie (temps, eau et climat) et des radiocommunications, y compris les institutions publiques et le secteur privé, et au grand public.PermalinkВсемирная Метеорологическая Организация (BMO); Международный союз электросвязи (ITU) - BMO, 2017 (BMO-No. 1197)В справочнике содержится обширная техническая и оперативная информация о существующих приложениях и системах наблюдения и об использовании радиочастот метеорологическими системами, включающими метеорологические спутники, радиозонды, метеорологические радары, радары для профилирования ветра, а также приборы спутникового дистанционного зондирования. Он предназначен для метеорологического сообщества (т. e. погода, вода и климат) и сообщества электросвязи, включая государственные учреждения, отрасль и широкую общественность.Permalink该手册提供了现有观测应用和系统以及气象系统所使用无线电频率方面的详尽记述和操作信
息，包括气象卫星、无线电探空仪、天气雷达、风廓线雷达和空基遥感仪器等。本书适用于气象 （即天气、水和气候）和无线电通信界人士（包括政府机构、业界和普通大众）。Permalinkالمنظمة العالمية للأرصاد ; International Telecommunication Union (ITU) - المنظمة العالمية للأرصاد, 2017 (مجموعة مطبوعات المنظمة-No. 1197)ويقدم هذا الدليل معلومات تقنية وتشغيلية شاملة بشأن تطبيقات الرصد الحالية ونظمها، واستعمال نظم الأرصاد الجوية للترددات الراديوية، بما فيها سواتل الأرصاد الج وية والمسابير الراديوية ورادارات الطقس ورادارات تصوير الريح وأجهزة الاستشعار عن ب عد المحمولة في الفضاء. وهو موجه للمتخصصين في الأرصاد الجوية )الطقس والماء والمناخ، على سبيل المثال( وفي هيئات الاتصالات الراديوية، بما فيها المؤسسات الحكومية، وقطاع الصناعة وعامة الجمهورPermalinkLa présente publication synthétise les bonnes pratiques pour les projets de préparation des utilisateurs mis en oeuvre par des organismes d’utilisateurs (par exemple, les SMHN) et pour les programmes de mise au point des satellites prévoyant la préparation des utilisateurs. Elle présente les résultats attendus de ces programmes pour les projets de préparation des utilisateurs ainsi que les délais impartis à cet effet.
Les bonnes pratiques ci-décrites s’appliquent donc à la fois aux organismes d’utilisateurs (section 3) et aux opérateurs de satellites (section 5).
La publication s ...PermalinkPermalinkВ настоящей публикации комплексным образом представлены наилучшие практики для проектов по обеспечению готовности пользователей, выполняемых организациями-пользователями (например, НМГС), а также для программ по развертыванию спутников в поддержку готовности пользователей. В документе содержатся определения и сроки получения поставляемых результатов, которые должны быть переданы программами по развертыванию спутников проектам по обеспечению готовности пользователей.
Настоящая публикация преимущественно ориентирована на членов Координационной группы по метеорологическим спутникам (КГМС) ...PermalinkВ настоящей публикации комплексным образом представлены наилучшие практики для проектов по обеспечению готовности пользователей, выполняемых организациями-пользователями (например, НМГС), а также для программ по развертыванию спутников в поддержку готовности пользователей. В документе содержатся определения и сроки получения поставляемых результатов, которые должны быть переданы программами по развертыванию спутников проектам по обеспечению готовности пользователей.
Настоящая публикация преимущественно ориентирована на членов Координационной группы по метеорологическим спутникам (КГМС) ...PermalinkEsta publicación presenta, de manera integrada, las mejores prácticas para los proyectos de preparación de usuarios ejecutados por las organizaciones de usuarios (por ejemplo, los SMHN), así como para los programas de desarrollo de satélites en apoyo de la preparación de usuarios. Se incluyen definiciones y un calendario de entregables que los programas de desarrollo de satélites deberían poner a disposición de los proyectos de preparación de usuarios.
Esta publicación está destinada principalmente a Miembros del Grupo de coordinación de los satélites meteorológicos (GCSM) y de la OMM, ...PermalinkPermalinkThe Satellite Foundational Course for GOES-R (SatFC-G) is a series of nearly 40 lessons designed specifically for National Weather Service (NWS) forecasters and decision makers to prepare for the U.S.’ next-generation geostationary environmental satellites. The course is intended to help learners develop or improve their understanding of the capabilities, value, and anticipated benefits from the GOES-R suite of instruments. These instruments and imagery offer improved monitoring of meteorological, environmental, climatological, and space weather phenomena and related hazards. The course will a ...PermalinkThis lesson describes the need for real-time lightning information and the capabilities of the Geostationary Lightning Mapper (GLM), which will fly on the next-generation GOES-R satellites as the first operational lightning detector in geostationary orbit. This lesson is a part of the NWS Satellite Foundation GOES-R Course. More in-depth discussions and a quiz on the lightning flash cycle and lightning applications can be found in the COMET lesson, GOES-R GLM: Introduction to the Geostationary Lightning Mapper.PermalinkThis module introduces aviation forecasters to a conceptual framework for analyzing, diagnosing and predicting convective cessation and resulting conditions near airports. Users will first learn about five main environments with respect to convection, and three patterns in which these environments are commonly arranged. Next, users are immersed into an adjustable-time case simulator to practice applying the convective environment frameworks to their forecast process, while periodically amending TAFs and responding to warning, storm report and caller interruptions. Finally, a case summary ties ...PermalinkPermalinkPermalinkPermalinkIn this report, we summarize the reported changes in TC satellite analysis techniques since IWSATC-I (2011) and highlight the continued development of existing objective analysis methods as well as the emergence of new algorithms.PermalinkPermalinkDuring the past two decades, the collection and utilization of large amounts of satellite radar imagery over vast polar regions has become an outstanding example of international cooperation among space agencies and the polar science community. Building on the successful cooperation and coordination during the International Polar Year (2007/08), the Polar Space Task Group (PSTG) has recently re-enacted the Synthetic Aperture Radar (SAR) Coordination Working Group (CWG). The Group provides coordination among space agencies operating SAR satellites to facilitate collection of fundamental SAR dat ...PermalinkAerosols are small, micrometer-sized particles, whose optical effects coupled with their impact on cloud properties is a source of large uncertainty in climate models. Aerosols when inhaled are believed to have significant and detrimental effects on human health. Their presence also affects photosynthesis and agricultural production. Aerosol measurements are urgently required for the complete understanding and modeling their role in the climate system. This study builds on the analysis of Aerosol Optical depth (AOD) using Light Detection and Ranging (LIDAR) and sun photometer measurements then ...PermalinkPermalinkPermalinkPermalinkPermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2015PermalinkWMO, 2015PermalinkThis report is that document, as authored by Dr Nash, in all its original detail. Starting with the existing version of the CIMO Guide (2010 update) Dr Nash revised that information, primarily to include the additional understanding gained from the Yangjiang intercomparison. At the same time, though, he added a wealth of further specialist knowledge, gained from his protracted involvement in WMO CIMO activities over more than thirty years, and in particular from his participation in all eight CIMO international radiosonde intercomparisons, commencing with the first, held at Bracknell in 1983.PermalinkPermalinkPermalinkPermalinkThe report enables a WMO Member country to determine where it stands in relation to other WMO Members in regard to its use of dangerous or obsolete instrumentation, and offers some ideas on how to replace these instruments by suggesting possible alternatives.PermalinkThis lesson provides a brief overview of surface and upper-air data and how these data are plotted on meteorological charts. The content introduces various charting and reporting techniques, including station models, contour analyses, streamlines, and upper air maps. Examples cover both the Northern Hemisphere and Southern Hemisphere and provide learners with opportunities to practice recognizing frequently used weather symbols. Supplemental materials include three Weather Symbol Identification drills. Completing these drills may require approximately 1-1.5 hours above the length of time estim ...PermalinkAircraft icing has resulted in numerous accidents, some fatal. The problem is due, in part, to a lack of awareness on the part of aviation forecasters (and others) that icing is imminent. The lesson addresses this issue by presenting a process for forecasting enroute icing for aviation and applying it to a case over the Continental U.S. The process involves gaining situational awareness of potential icing areas and making a first forecast of their locations and flight levels; comparing the first forecast to NWP forecasts; and adjusting as needed. To reach a wide audience and stay current, the ...PermalinkThis ninth intercomparison campaign was a joint exercise of the Regional Brewer Calibration Center for Europe (RBCC-E) and the Arosa Lichtklimatisches Observatorium (LKO) of MeteoSwiss during the period 14-26 July 2014. Six Brewers managed by 11 experts from four countries participated in the campaign (Table 1). The Brewer instruments were compared with the RBCC-E travelling reference Brewer #185 for ozone. The RBCC-E transferred during this intercomparison its own absolute ozone calibration obtained by the Langley method at the Izaña Observatory (IZO). The calibration of the reference instrum ...PermalinkThe eighth Regional Brewer Calibration Center for Europe (RBCC-E) intercomparison was held at El Arenosillo Atmospheric Sounding Station of the Instituto Nacional de Técnica Aeroespacial (INTA) during the period 10-20 June 2013. This campaign was organized in collaboration with the Area of Instrumentation and Atmospheric Research of INTA, with the support of the Global Atmosphere Watch (GAW) programme of the World Meteorological Organization (WMO) and a CEOS CALVAL project of the European Space Agency (ESA). A total number of 18 Brewer spectrophotometers from eight countries participated in th ...PermalinkDroughts pose a major risk in most African countries including Ghana where agricultural activities are heavily dependent on rainfall. Efforts at assessing droughts and providing decision support tools to farmers are hampered by a lack of rainfall and other meteorological data over many parts of Africa. Satellite based rainfall measurements have been suggested to fill the rainfall data gaps over Africa to enable effective assessment of droughts. Traditional methods of assessing droughts have been based on statistical formulations that relied mostly on precipitation. This approach to assessing d ...PermalinkOSCAR is an important part of WIGOS. It has four components (see diagram below): OSCAR/Surface and OSCAR/Space contain information about surface- and space-based observing system capabilities; OSCAR/Requirements contains user requirements for all Application Areas supporting WMO Programmes, and OSCAR/Analysis is used to compare those requirements with the observing system capabilities (RRR, "Critical Review"). This allows experts and observing system operators to identify gaps and supports their planning efforts. OSCAR/Space has been available in pre-operational mode at the WMO Secretariat sin ...Permalinkأداة تحليل واستعراض قدرات نظم الرصد جزء مهم من النظام العالمي المتكامل للرصد، ولها أربعة مكونات )انظر الرسم البياني أدناه(: تتضمن الأداة OSCAR /السطح والأداة OSCAR /الفضاء معلومات عن قدرات نظم الرصد السطحية والفضائية؛ وتتضمن الأداة OSCAR /المتطلبات متطلبات المستخدم لكل مجالات التطبيق الداعمة لبرامج المنظمة، وتستخدم الأداة OSCAR /التحليل لمقارنة تلك المتطلبات مع قدرات نظم الرصد ) RRR ، ‘‘الاستعراض النقدي’’(. ويتيح ذلك للخبراء ومشغلي نظم الرصد تحديد الفجوات ويدعم جهودهم في مجال التخطيط. وتوجد الأداة OSCAR /الفضاء متاحة في وضع سابق للتشغيل في أمانة المنظمة منذ 2012 . وفي 2014 ، أبرمت المنظمة والم ...PermalinkOSCAR是WIGOS的重要组成部分。它包括四个组份（参见下 图）：OSCAR/地面和OSCAR/空间包含了有关地基-和 空基观测系统能力的信息；OSCAR/需求包含了支持WMO 计划的所有应用领域的用户需求，OSCAR/分析用于将这 些要求与观测系统能力进行比对（RRR，“关键审查”）。这 使得专家和观测系统运行方可以找出差距并支持他们的 规划。OSCAR/空间自2012年起在WMO秘书处已处于预运 行状态。2014年WMO和瑞士气象局达成一项协议，以共同开 发地面、需求和分析这三个组份。PermalinkОСКАР является важной частью ИГСНВ. В него входят четыре компонента (см. схему ниже): ОСКАР/Земля и ОСКАР/Космос содержат информацию о возможностях наземных и космических систем наблюдений; ОСКАР/ Потребности содержит потребности пользователей для всех областей применений в поддержку программ ВМО, ОСКАР/Анализ используется для сравнения этих потребностей с возможностями систем наблюдений (РОП, «Критический обзор»). Это позволяет экспертам и операторам систем наблюдений определять пробелы и оказывает поддержку их деятельности по планиро- ванию. ОСКАР/Космос доступен в предоперативном режиме в С ...PermalinkOSCAR es una parte importante de WIGOS. Tiene cuatro componentes (véase el diagrama a continuación): OSCAR/Surface y OSCAR/Space incluyen información sobre la capacidad de los sistemas de observación de superficie y espaciales; OSCAR/Requirements incluye las necesidades de los usuarios para las esferas de aplicación que prestan apoyo a los Programas de la OMM, y OSCAR/Analysis sirve para comparar esas necesidades con la capacidad de los sistemas de observación (examen continuo de las necesidades, “examen crítico”). Ello permite a los expertos y operado¬res de los sistemas de observación detect ...PermalinkOSCAR, qui est un élément important du WIGOS, comporte quatre composantes (voir diagramme ci-dessous): OSCARSurface et OSCAR-Espace contiennent des informations sur les capacités des systèmes d’observation en surface et par satellite; OSCAR-Besoins fournit des précisions sur les besoins des utilisateurs dans tous les domaines d’application à l’appui des programmes de l’OMM; OSCAR-Analyse sert à comparer ces besoins et les capacités des systèmes d’observation (étude continue des besoins, «examen critique»); cette composante permet aux experts et aux exploitants des systèmes d’observation de déf ...PermalinkLa demande de services climatologiques a énormément augmenté ces dernières décennies. D’importantes sphères d’activité du secteur public et privé, par exemple les assurances, l’agriculture, la santé, l’énergie et les transports, doivent pouvoir compter sur des informations et services climatologiques fiables pour établir leurs plans stratégiques, orienter leurs investissements et prendre des décisions quotidiennes. Le Cadre mondial pour les services climatologiques (CMSC) offre une structure pour élaborer de tels services.PermalinkThe demand for climate services has increased considerably over recent decades.PermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2014PermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2014PermalinkPermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2014PermalinkThis lesson describes the properties of electromagnetic and electro-optical radiation and how their propagation is affected by the atmosphere and weather. Atmospheric variables that affect EM propagation include temperature, moisture, pressure, and composition. These variables control processes including refraction, absorption, and scattering.PermalinkThe Manual of Synoptic Satellite Meteorology, or SatManu, provides detailed descriptions of approximately fifty atmospheric conceptual models at different scales from a satellite point of view. Each conceptual model has associated exercises and many have case studies that show how the models can be applied. Most of the case studies were developed for specific training courses in Europe. SatManu also has case studies of catastrophic weather events which are presented from the perspective of the conceptual models. In addition, an introductory chapter describes the different satellite channels. T ...PermalinkThis extension of the COMET module “GOES-R: Benefits of Next Generation Environmental Monitoring” focuses on the Geostationary Lightning Mapper (GLM) instrument, the satellite's lightning mapper. The GLM will provide continuous lightning measurements over a large portion of the Western Hemisphere, mapping total lightning (intra-cloud and cloud–to–ground) flash rates and trends. GLM observations will improve local forecasts and warnings of severe weather and air quality, and provide new data for numerical weather prediction and studies of regional climate and climate change. The first part of t ...Permalink"Weather Observing Fundamentals" provides guidance for U.S. Navy Aerographer's Mates, Quartermasters, and civilian observers tasked with taking and reporting routine, special, and synoptic observations. Although the focus of this lesson is on shipboard observations, much of the content applies to land-based observing and reporting as well. The lesson details standard procedures for taking accurate weather observations and for encoding those observations on COMNAVMETOCCOM Report 3141/3. Exercises throughout the lesson and four weather identification drills at the end provide learners with oppor ...PermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkPermalinkWhile today’s environmental satellites serve many important functions, one of the most critical is to provide meteorologists with data that are crucial to making accurate, life-saving weather predictions. These “eyes in the sky” constantly orbit above us. They make atmospheric observations that are ingested into numerical weather prediction (NWP) computer models and provide meteorologists with images of weather phenomena that allow them to monitor storms around the globe, identify volcanic ash and smoke from wildfires, and track hurricane development. For all of these reasons, the US National ...PermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2013PermalinkPermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2013PermalinkThis report describes this latest RA II intercomparison: the participants (from WRC, Japan, Hong Kong, the Republic of Korea, and Thailand), the intercomparison itself and the results. That all participating instruments except one were found to be well-maintained and highly accurate is a credit to all those who participated, and we can now be confident that solar radiation measurements made in these Asian region countries are reliable and dependable.PermalinkThis report presents the results from a sub-Regional Pyrheliometer Intercomparison that was held at the Regional Radiation Centre at Norrköping, at the kind invitation of Sweden, for Members of Baltic states of WMO Regional Association VI. The opportunity was taken during the exercise to include a pyranometer intercomparison. The participating countries were Austria, Finland, Lithuania, Poland, Russia, Sweden and WRC (Switzerland).PermalinkThe World Meteorological Organization (WMO) has undertaken the 2012 WMO Survey on the Use of Satellite Data to collect information on the availability and use of satellite data and products by users globally, and to identify any areas for improvement and remedial action. This is part of the work programme of the WMO Commission for Basic Systems Expert Team on Satellite Utilization and Products (ET-SUP).1 The total number of valid responses received was 227 (originating from 95 WMO Member countries2 ) of which 127 (56%) were provided by National Meteorological and Hydrological Services (NMHS), ...PermalinkWorld Meteorological Organization (WMO) ; Global Space-based Inter-calibration System (GSICS) - WMO, 2013PermalinkThis report focuses on satellite observations for climate monitoring from space, and the need for an international architecture that ensures delivery of these observations over the time frames required for analysis of the Earth’s climate system. The report outlines a strategy for such an architecture – a strategy that is intentionally high-level, conceptual and inclusive, so that a broad consensus can be reached, and all relevant entities can identify their po¬tential contributions. The strategy, however, is not suffi¬cient, in and of itself, and therefore also presents a logical architecture ...PermalinkThis module provides examples of radar imagery from various locations in the Caribbean to demonstrate the different types of images available. Also, examples of different meteorological and non meteorological features are presented to show features seen in island locations.PermalinkThis module presents radar case studies taken from events in the Caribbean that highlight radar signatures of severe weather. These cases include examples of deep convection, squall lines, bow echoes, tornadoes, and heavy rain resulting in flooding. Each case study includes a discussion of the conceptual models of each type of event as a review before showing the radar signatures and allowing the learner to analyze each one.PermalinkNowcasting for Aviation in Africa summarizes techniques and best practices for developing area-specific forecasts at very short (0-6 hour) timescales. This 1-hour lesson presents a case study focused on interpreting threats and communicating correct warning information for a weather event affecting multiple airports in Gauteng Province, South Africa. In completing the lesson, the learner will assess the state of the atmosphere, develop a nowcast, monitor conditions, and update/create appropriate nowcast products for aviation stakeholders.PermalinkSince the advent of rawinsonde observations, thermodynamic diagrams have been used by meteorologists to analyze sounding data in the course of preparing their weather forecasts. This module comprehensively examines the use of the tephigram, widely used for over 60 years by meteorologists in the United Kingdom, Canada, and other countries throughout the world particularly in Europe and Africa. It explores thermodynamic properties, convective parameters, stability assessment, and several forecast applications. The module is designed for both instruction and reference. It also comes with an inter ...PermalinkPermalinkWorld Meteorological Organization (WMO) ; European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT); GEWEX ; et al. - ESA Publications Division, 2013The objective of the workshop is to discuss and reconcile recent methodological advances in the validation and application of global satellite soil moisture data. The workshop will bring together producers and users of satellite soil moisture data, providing a platform to discuss data quality, error characterization, validation approaches, data assimilation, and the broadening range of applications. The workshop will focus on soil moisture products derived from current and future active and passive microwave sensors operating in the low frequency range from 1 to 10 GHz, including but not ...Permalink2013This special issue contains 40 papers contributed by the GSICS and CEOS/WGCV communities and provides a useful reference for every user interested in calibration and traceability of satellite observations.PermalinkThis report provides a summary of the Fourth session of the International Organizing Committee (IOC) of the WMO Solid Precipitation Intercomparison Experiment (SPICE) that was held in Davos, Switzerland from 17 to 21 June 2013.
The IOC reviewed the outcomes of the first winter season focusing in particular on issues which were experienced on the different sites and which could affect data quality and data availability towards deciding on necessary modifications and clarifications on the overall set-up of the experiment and procedures to be followed within SPICE.
The IOC reviewed ...PermalinkThe aims and objectives for the workshop had been approved by ICT-IOS-7 in July 2012 and CBS-XV in September 2012. However the challenge was substantial as: the user community has varied and evolving requirements; the operating communities have a wide range of technological, political and financial challenges and there are already numerous successful bi-lateral and multi-lateral exchange agreements already in place. Understanding the current situation in terms of requirements, exchange agreements and constraints is an issue in itself. But this will be necessary in order for the next step actio ...PermalinkThe scope of this report is to evaluate the benefits of a future satellite mission in a polar sun-synchronous “early morning” orbit, in response to a request from the Coordination Group for Meteorological Satellites (CGMS). This evaluation is addressed first from a generic standpoint and then applied more specifically to the potential deployment by the China Meteorological Administration (CMA) of a FY-3 mission in such an orbit.
The report is based on the work of the Tiger Team established on this matter by the World Meteorological Organization (WMO) and CGMS. It summarizes the outcome ...PermalinkThis document represents an update to the Implementation Plan for the Sustained and Coordinated Processing of Environmental Satellite Data for Climate Monitoring (SCOPECM) Version 1.3 of 20 March 2009 [RD-01]. Phase 2 of SCOPE-CM incorporates accomplishments and lessons learned from Phase 1, updated requirements and guidelines from the Global Climate Observing System (GCOS), and the evolving needs for climate information by a variety of users. A key component of Phase 2 is the establishment of sustained production of fundamental climate data records (FCDRs) as well as Essential Climate V ...PermalinkPermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2012PermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2012PermalinkPermalinkThe first WMO International Workshop on Satellite Analysis of Tropical Cyclones (IWSATC) was organized by the WMO Tropical Cyclone Programme (TCP) in collaboration with the WMO World Weather Research Programme (WWRP), and the World Data Center (WDC) for Meteorology which is maintained by the National Oceanic and Atmospheric Administration (NOAA). The main purpose of IWSATC is to increase the accuracy and reliability of satellite analyses of tropical cyclones (TCs) by sharing the latest knowledge and techniques amongst operational forecasters of the major warning centers and researchers. The or ...PermalinkThe second edition of the popular "Remote Sensing Using Satellites" module updates imagery of recent hurricanes as well as other phenomena from more recent satellites. The suggested audience for this module is high school and undergraduate students. Learn about remote sensing in general and then more specifically about how it is done from satellites. We will focus on the visible and infrared channels, those commonly seen on television broadcasts. Come explore the view of Earth from space and see what we see. In the second chapter, we will focus even more on hurricanes and specifically Hurrican ...PermalinkSatellite monitoring of atmospheric composition provides important information for a number of applications, including stratospheric ozone monitoring, long-range pollutant transport, biomass burning, air quality monitoring and forecasting, and climate change. This module provides an overview of the use of satellites in these application areas, the measurement techniques used, and the development of related operational services. In addition, the module covers a short history of European and U.S. satellite missions, as well as a look at future missions planned for monitoring atmospheric composit ...PermalinkThis 2-hour module presents the fundamental principles of Doppler weather radar operation and how to interpret common weather phenomena using radar imagery. This is accomplished via conceptual animations and many interactive radar examples in which the user can practice interpreting both radar reflectivity and radar velocity imagery. Although intended as an accelerated introduction to understanding and using basic Doppler weather radar products, the module can also serve as an excellent refresher for more experienced users.PermalinkThis report provides a summary of the third session of the International Organizing Committee (IOC) of the WMO Solid Precipitation Intercomparison Experiment (SPICE) that was held in Brussels, Belgium on 15 October 2012. The IOC reviewed the proposal from NCAR to provide the data archive for level 1 and 2a data and approved it. It made a number of recommendations for the finalization and improvement of the proposal relevant for example to the data format, interaction with sites, and provision of maintenance information by the sites. The IOC reviewed the status of preparation of all northern he ...PermalinkWMO, 2012The eleventh session of the GSICS Executive Panel (EP) was hosted by ROSHYDROMET in St Petersburg on 2 October 2011 in conjunction with the 39th session of CGMS. The Panel noted the good progress made by both the GSICS Data Management Working Group (GDWG) and the GSICS Research Working Group (GRWG). It stressed the importance and the benefit of following a harmonized methodology throughout the agencies and encouraged IMD and ISRO to resume contact with the GSICS Coordimation Centre (GCC) with a view to facilitate implementation of GSICS corrections on INSAT and Kalpana. The Panel invited the ...PermalinkThis report provides a summary of the second session of the International Organizing Committee (IOC) of the WMO Solid Precipitation Intercomparison Experiment (SPICE) that was held in Boulder, USA, from 11 to 15 June 2012. The IOC reviewed the outcomes of the informal Pre-SPICE experiment that took place during the winter of 2011/12 in the interest of assessing the principles of the formal intercomparison and to address, in particular, the configuration of a working field reference using an automatic gauge. The IOC reviewed a number of aspects dealing with the configuration and operatio ...PermalinkThe Workshop on Aircraft Observing System Data Management was hosted by the WMO Secretariat, over 5-8 June, 2012, in Geneva, Switzerland. The Workshop was a joint initiative of the WMO AMDAR Panel and the CBS Expert Team on Aircraft-based Observations (ET-AIR). The aims and objectives, which are provided in full within Appendix II, were chiefly concerned with furthering two tasks within the WIGOS Pilot Project for AMDAR, namely the “Development of a standardised Quality Management Framework for AMDAR data”, and, the “Application of WMO Metadata relevant to AMDAR”. The Workshop also covered a n ...PermalinkPermalinkIn support of the programmes coordinated or co-sponsored by WMO for weather and climate, CGMS Members plan to maintain the operational capabilities and services described below, that constitute the “CGMS baseline for the operational contribution to the GOS”. While this particular document focuses on missions that are decided and managed in an
operational or sustained framework, with a perspective of long-term follow-on, this in no way precludes the importance of other missions undertaken e.g. on a research or demonstration basis. First of all, because today’s research and development a ...PermalinkPermalinkWorld Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC) - WMO, 2012Permalink
PermalinkAtmospheric Chemistry and Physics (ACP), Vol. 11. N° 7. Fiedler V.; Arnold F.; Ludmann S.; et al. - Copernicus GmbH, 2011Airborne measurements of trace gases and aerosol particles have been made in two aged biomass burning (BB) plumes over the East Atlantic (Gulf of Guinea). The plumes originated from BB in the Southern-Hemisphere African savanna belt. On the day of our measurements (13 August 2006), the plumes had ages of about 10 days and were respectively located in the middle troposphere (MT) at 3900–5500 m altitude and in the upper troposphere (UT) at 10 800–11 200 m. Probably, the MT plume was lifted by dry convection and the UT plume was lifted by wet convection. In the more polluted MT-plume, numerous me ...PermalinkApparent evidence for a strong signature of solar activity in ground-based insolation data was recently reported. In particular, a strong increase of the irradiance of the direct solar beam with sunspot number as well as a decline of the brightness of the solar aureole and the measured precipitable water content of the atmosphere with solar activity were presented. The latter effect was interpreted as evidence for cosmic-ray-induced aerosol formation. Here I show that these spurious results are due to a failure to correct for seasonal variations and the effects of volcanic eruptions and local ...PermalinkAtmospheric Chemistry and Physics (ACP), Vol. 11. N° 5. Barlow J.F.; Dunbar T.M.; Nemitz E.G.; et al. - Copernicus GmbH, 2011Urban boundary layers (UBLs) can be highly complex due to the heterogeneous roughness and heating of the surface, particularly at night. Due to a general lack of observations, it is not clear whether canonical models of boundary layer mixing are appropriate in modelling air quality in urban areas. This paper reports Doppler lidar observations of turbulence profiles in the centre of London, UK, as part of the second REPARTEE campaign in autumn 2007. Lidar-measured standard deviation of vertical velocity averaged over 30 min intervals generally compared well with in situ sonic anemometer measure ...PermalinkAtmosphere-ocean, Vol. 49 No.1. McKendry I.G.; Strawbridge K.B.; Jones A. - Canadian Meteorological and Oceanographic Society, 2011CORALNet-UBC was installed in April 2008 as a “proof of concept” and the first facility in a proposed cross-Canada network of similar lidars. Despite its location on the wet West Coast of Canada, data recovery ranged from a low of 45% of the total time in December, when heavy snowfall interrupted operations, to a high of 90% in July. The facility has been a spectacular success in terms of its operational characteristics (as measured by data recovery), the range of phenomena observed and the research that it has spawned. Examples are provided of the types of phenomena observed since its initial ...PermalinkAtmospheric Chemistry and Physics (ACP), Vol. 11. N° 3. Feng L.; Palmer P.I.; Yang Y.; et al. - Copernicus GmbH, 2011We evaluate the GEOS-Chem atmospheric transport model (v8-02-01) of CO2 over 2003–2006, driven by GEOS-4 and GEOS-5 meteorology from the NASA Goddard Global Modeling and Assimilation Office, using surface, aircraft and space-borne concentration measurements of CO2. We use an established ensemble Kalman Filter to estimate a posteriori biospheric+biomass burning (BS + BB) and oceanic (OC) CO2 fluxes from 22 geographical regions, following the TransCom-3 protocol, using boundary layer CO2 data from a subset of GLOBALVIEW surface sites. Global annual net BS + BB + OC CO2 fluxes over 2004–2006 for ...PermalinkAtmospheric Chemistry and Physics (ACP), Vol. 11. N° 3. Russo M.R.; Marécal V.; Hoyle C.R.; et al. - Copernicus GmbH, 2011Fast convective transport in the tropics can efficiently redistribute water vapour and pollutants up to the upper troposphere. In this study we compare tropical convection characteristics for the year 2005 in a range of atmospheric models, including numerical weather prediction (NWP) models, chemistry transport models (CTMs), and chemistry-climate models (CCMs). The model runs have been performed within the framework of the SCOUT-O3 (Stratospheric-Climate Links with Emphasis on the Upper Troposphere and Lower Stratosphere) project. The characteristics of tropical convection, such as seasonal c ...PermalinkWorld Meteorological Organization (WMO) ; United Nations Environment Programme (UNEP); International Council for Science (ICSU); et al. - WMO, 2011PermalinkWorld Meteorological Organization (WMO) ; United Nations Environment Programme (UNEP); International Council for Science (ICSU); et al. - WMO, 2011PermalinkPermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2011PermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC); International Tsunameter Partnership - WMO, 2011PermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2011PermalinkWorld Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2011PermalinkPermalinkThe results presented in this report are based on the measurements carried out during the three weeks assigned to the IPC-XI. The favorable weather conditions allowed to acquire a large number of calibration points for most participating instruments. Cloudy and overcast days were used for technical preparations and training of participants as well as for a the IPC-XI symposium and Course on Radiation Measurement. A Saharan Dust Event (SDE) a ected the measurements during several days starting October 8 th . Analyzing the e ect of the SDE on di erent types of instruments led to interesting ndi ...PermalinkGreenwood Robert; Schuiz Eric; Parkinson Murray; et al. - Centre for Australian Weather and Climate Research, 2011The Tasman International Geospace Environment Radar systems (TIGER) located in Tasmania and New Zealand are High Frequency (HF) Over-The-Horizon Radar (OTHR) systems and represent Australia’s contribution to the Super Dual Auroral Radar Network (SuperDARN). SuperDARN is a network of more than 20 HF radars located at mid-high latitudes with fields of view covering the polar regions for the study of ionospheric physics. The TIGER systems have overlapping fields of view that cover much of the Southern Ocean in the Australian sector. The development and operation of TIGER has been led by La Trobe ...Permalink