Published by: CGMS ; 2013
Format: Digital (Free)This document provides a functional specification for AMDAR onboard software, which can be utilized by avionics software developers to build avionics software applications for AMDAR that will efficiently meet WMO standards and requirements for reporting of meteorological data from the aircraft platform utilizing aviation communications protocols and infrastructure.
Published by: WMO ; 2013
This document provides a functional specification for AMDAR onboard software, which can be utilized by avionics software developers to build avionics software applications for AMDAR that will efficiently meet WMO standards and requirements for reporting of meteorological data from the aircraft platform utilizing aviation communications protocols and infrastructure.
Collection(s) and Series: IOM Report- No. 114
Format: Digital (Free)World Meteorological Organization (WMO) ; Intergovernmental Oceanographic Commission (IOC) - WMO, 2013
Published by: WMO, IOC ; 2013
Collection(s) and Series: DBCP Technical Document- No. 46
Format: CD, DVD, Digital (Free)This 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.
Published by: WMO ; 2013
This 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.
Collection(s) and Series: IOM Report- No. 113
Format: Digital (Free)This 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).
Published by: WMO ; 2013
This 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).
Collection(s) and Series: IOM Report- No. 112
Format: Digital (Free)
Tags: Observations ; National Meteorological and Hydrological Service (NMHS) ; Pyrheliometer ; Instruments and Methods of Observation Programme (IMOP) ; Region VI - Europe ; Austria ; Finland ; Lithuania ; Poland ; Russian Federation ; Sweden Add tagThe 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, 2013
PermalinkThis 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 ...
PermalinkThe hazards associated with convective systems present some of the most dangerous conditions encountered by aircraft and pose many challenges to aviation operations. When convection is forecast to develop, aviation forecasters are required to issue a series of warning messages and other meteorological aeronautical products to various members of the aviation community. This lesson teaches these forecasters how to produce the products, doing so in the context of a case study in which learners assume the role of aeronautical forecaster on duty at the airport in Niamey, Niger on a night when conve ...
PermalinkThis lesson describes current and future satellites sensors and products used for monitoring the fire cycle, with an emphasis on polar-orbiting satellites. Product information is presented in the context of the fire lifecycle: from assessing the pre- and post-fire environment to detecting and monitoring active fires, smoke, and aerosols. Product information is also consolidated in the Fire Product Suite. The lesson concludes with an interactive fire case study, supplemented with observations from a National Weather Service trainer/forecaster who experienced the fire. The lesson is intended for ...
PermalinkTurbulence is a major concern for the aviation industry. It often goes undetected in cloud-free areas, catching pilots off guard when they fly into it. Turbulence can injure passengers and crew, and cause structural damage to aircraft. This makes it critical for aviation weather forecasters to closely monitor the atmosphere for signs of turbulence and issue special warnings when it is likely to be present. This lesson helps prepare forecasters for these tasks by providing general information about turbulence and showing them how to detect it using satellite imagery, tephigrams, and NWP product ...
PermalinkThis lesson provides an overview of meteorological and environmental RGB products, namely, how they are constructed and how to use them. The first half provides background information on the RGB development process and the rapid evolution of RGB products as newer geostationary and polar-orbiting satellite imagers incorporate additional spectral channels. The second half of the lesson, the Applications section, focuses on the formulation and uses of RGB products; providing examples, interpretation exercises, satellite specific information, and other background information for many of the common ...
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 applies concepts covered in the module, Fog: Its Processes and Impacts to Aviation. It examines the fog processes at a tropical location: Guyana. A basic overview of the main fog types is provided, and then a detailed analysis is done for a representative fog event at the Cheddi Jagan International Airport in Guyana. Conclusions are made about fog processes in Guyana which can then be applied to forecasting for aviation impacts.
PermalinkThis lesson aims to improve aviation forecasts of fog in the African airspace by teaching forecasters to make more accurate forecasts using satellite imagery, numerical weather prediction, and other available data. A process for diagnosing and forecasting fog is presented and applied to a case over the Nairobi, Kenya region. Learners assume the role of aviation forecaster, analysing various products to determine whether the current Terminal Aerodrome Forecast (TAF) is valid or needs to be amended. The lesson is intended for aviation forecasters, general weather forecasters interested in aviati ...
PermalinkThis lesson introduces the VIIRS imager that operates on the current U.S. Suomi NPP satellite and is planned for future JPSS environmental satellites. VIIRS has many advanced features that improve both spectral and spatial resolution and enable the delivery of consistent, high quality, and high resolution data to users worldwide. The lesson covers the enhanced capabilities of VIIRS and highlights some of its applications. These include single channel and multispectral products used to monitor dust, volcanic ash, convection, fog and low clouds, sea surface temperature, tropical cyclones, contra ...
PermalinkThis module provides an introduction to ensemble forecast systems with an operational case study of Hurricane Sandy. The module concentrates on models from NCEP and FNMOC available to forecasters in the U.S. Navy, including NAEFS (North American Ensemble Forecast System), and NUOPC (National Unified Operational Prediction Capability). Probabilistic forecasts of winds and waves developed from these ensemble forecast systems are applied to a ship transit and coastal resource protection. Lessons integrated in the case study provide information on ensemble statistics, products, bias correction and ...
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.
PermalinkWe think in three-dimensional space and a fourth dimension, time. Therefore, we should think about the atmosphere in similar terms. However, we are often stuck with two-dimensional maps. Water vapor imagery can help us break out of that flatland and move to more dimensions. This imagery holds so much under-utilized potential. We can actually see three-dimensional structures evolving in near-real-time. And if we have a good handle on the current three-dimensional structure, we can then use NWP to its fullest as a verification/interrogation instrument for our 3D mental model. Come see the atmosp ...
PermalinkMesoscale Convective Systems (MCSs) occur globally and can account for significant percentages of the annual precipitation in some locations. MCSs are responsible for flooding as well as damaging surface winds in some instances. Thus, it is important for forecasters to understand when, where, and how MCSs develop and maintain themselves. This module covers all modes of MCSs with a strong focus on the tropics and the different aspects that brings to MCS development, maintenance, and structure. It describes conceptual models of MCSs and the dynamical and physical processes that influence their e ...
PermalinkThis extension of the COMET lesson “GOES-R: Benefits of Next Generation Environmental Monitoring” focuses on the ABI instrument, the satellite's 16-channel imager. With increased spectral coverage, greater spatial resolution, more frequent imaging, and improved image pixel geolocation and radiometric performance, the ABI will bring significant advancements to forecasting, numerical weather prediction, and climate and environmental monitoring. The first part of the lesson introduces the ABI's key features and improvements over earlier GOES imagers. The second section lets users interactively ex ...
PermalinkThis lesson is an update to the 2008 expert lecture on hyperspectral observations presented by Dr. Mitch Goldberg, Program Scientist for NOAA's Joint Polar Satellite System (JPSS) Program. The lesson discusses what hyperspectral observations are, how they are made, some current products, their contributions to improved monitoring of the atmosphere, oceans, and land surfaces, as well as their impact on numerical weather prediction. The lesson begins by discussing the importance of satellite observing systems. From there, it reviews the principles of remote sensing that are needed for deriving p ...
PermalinkThis Regional Study Guide highlights the sections of the Introduction to Tropical Meteorology, 2nd Edition online textbook that are applicable to aeronautical forecasting operations in Africa. Topics include remote sensing, global circulations, tropical variability, tropical cyclones and the challenges encountered when forecasting tropical weather. The guide consists of a list of links to the content in the textbook and has its own stand-alone quiz.
PermalinkThis lesson illustrates how numerical guidance from the Weather Research and Forecasting Model - Environmental Modeling System (WRF-EMS) can be added to surface observations, satellite graphics, and conceptual models of important aviation phenomena, to produce TAFs. Specifically, the lesson describes how visibility, cloud ceilings, and the flight categories variables provide values for aviation forecasts in Africa.
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 ...
PermalinkWorld 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 ...
PermalinkThese Guidelines are intended to provide a one-stop, consistent and up-to-date reference resource for everything managers need to know about running a National Meteorological or Hydrometeorological Service (NMS).
PermalinkThis Questionnaire has been prepared by the RA VI Task Team on Strategic and Operating Plan (TT/SPAP) which reportsto the RA VI Management Group. The main objective of the Questionnaire is to collect basic information about the current institutional arrangements of hydrometeorological services in RA VI, as well as, the views of the RA VI Members regarding the most important challenges and priorities. The information collected will help the ManagementGroup and Secretariat to prepare a detailed RA VI Panorama as a background material for the discussions during the XVI Session of RA VI (September ...
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 session was very successful. Although its main focus was on refining and agreeing on a detailed Work Plan for the IPET, and on assigning key tasks to particular members of the IPET, it also enabled the detailed work to commence on those of the Key Activities Areas (KAAs) from the WMO Integrated Global Observing System (WIGOS) Framework Implementation Plan (WIP) that have been assigned to IPET-WIFI for provision of input related to the Global Observing System (GOS).
PermalinkWorld Meteorological Organization (WMO) ; United Nations International Strategy for Disaster Reduction (UN/ISDR); World Bank the; et al. - UN/ISDR, 2013The Country Assessment Reports for Cambodia, Indonesia, Lao PDR, Philippines and Viet Nam investigate the capacity of the national hydrological and meteorological services (NHMSs) and recommend improvements through a regional approach.
Initial assessments in the reports show the cost-effectiveness of strengthening national hydro-meteorological services through regional cooperation for reducing adverse impacts of natural hazard-induced disasters and climate change which know no national boundaries.
The World Bank and UNISDR produced the reports in collaboration w ...
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 ...
PermalinkThe present Statement is based on datasets and information that were made available by WMO Members and partners for 2012 and assessed in their global and regional geographical context. Comparisons were made with climatological averages and records (historical background) whenever possible and appropriate.
PermalinkThe purpose of this Framework is to provide procedures and arrangements for the implementation and continuous improvement of risk management in the Organization to ensure that risk management is carried out in a consistent manner based on the principles defined in the RMP, and following best practice and procedures.
PermalinkWeather and climate know no national borders. The transformation of the International Meteorological Organization into the World Meteorological Organization (WMO) in 1950 was therefore an essential response to the need for strengthening global cooperation in this scientific area. WMO’s aim: to reduce the loss of life and property caused by disasters and other catastrophic events related to weather, climate and water, as well as to advance the universal goal of sustainable development and safeguard the environment and the climate for present and future generations.
Permalinkتوفر هذه هي النشرة التاسعة من سلسلة النشرات السنوية المتعلقة بغازات الدفيئة والتي يصدرها برنامج المراقبة العالمية للغلاف الجوية ) )GAW التابع للمنظمة ) WMO ( معلومات حول وفرة أهم غازات الدفيئة الطويلة الأمد ) LLGHGs ( في الغلاف الجوي، ومعدلات تغيرها، وهي ثاني أكسيد الكربون، والميثان، وأكسيد النيتروز، كما تقدم ملخصاً يتناول مساهمات الغازات الأخرى. وتسهم هذه الغازات الثلاثة، إلى جانب الكلوروفلوروكربون ) CFC-12 (، والكلوروفلوروكربون ) )CFC-11 بنسبة 96 ٪ ] 4[ تقريباً من التأثير الإشعاعي القسري الناجم عن غازات الدفيئة ) LLGHGs.
Permalink第九期WMO/GAW年度温室气体公报公布了最重要的 长生命期温室气体(LLGHG)(二氧化碳、甲烷、氧化亚氮)的 大气含量和变化速率，并提供了其它气体的贡献概况。这三种气体以及CFC-12和CFC-11共约占长生命期温室气体所造 成辐射强迫的96%.
PermalinkBMO, 2013В этом девятом ежегодном бюллетене ГСА/ВМО по парниковым газам сообщается о концентрациях в атмосфере и темпах изме- нения важнейших долгоживущих парниковых газов (ДПГ) — двуокиси углерода, метана, закиси азота, а также приводится краткая информация о вкладах других газов. На эти три газа, наряду с ХФУ-12 и ХФУ-11, приходится приблизительно 96 % радиационного воздействия, обусловленного ДПГ.