Topics
Sorted by (Issue date descending, Date of update descending, Date of creation descending, Number of collection descending) Add the result to your favourites Refine your search
Basic Documents, 2. Technical Regulations, Volume I: General Meteorological Standards and Recommended Practices
The Technical Regulations are determined by the World Meteorological Congress in accordance with Article 8 (d) of the Convention.
These Regulations are designed:
(a) To facilitate cooperation in meteorology and hydrology among Members;
(b) To meet, in the most effective manner, specific needs in the various fields of application of meteorology and operational hydrology in the international sphere;
(c) To ensure adequate uniformity and standardization in the practices and procedures employed in achieving (a) and (b) above.
Documents de base, 2. Règlement technique, Volume I: Pratiques météorologiques générales normalisées et recommandées
Le Règlement technique est établi par le Congrès météorologique mondial, conformément à l’article 8 d) de la Convention. Les buts du présent règlement sont les suivants:
a) Faciliter la coopération en matière de météorologie et d’hydrologie entre les Membres;
b) Répondre le plus efficacement possible, sur le plan international, aux besoins spécifiques des différents domaines d’application de la météorologie et de l’hydrologie opérationnelle;
c) Assurer, d’une manière adéquate, l’uniformité et la normalisation des pratiques et procédures employées pour atteindre les buts a) ...
GCOS, 231. WMO GCOS/WIGOS Caribbean Workshop on Observations for Climate and Meteorology
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2019
![]()
GAW Report, 248. Twelfth Intercomparison Campaign of the Regional Brewer Calibration Center Europe
XII Regional intercomparison of the Brewer Calibration Center for Europe (RBCC-E) was held at El Arenosillo Atmospheric Sounding Station of the “Instituto Nacional de Técnica Aeroespacial” (INTA) during the period 29 of May to – 7 of June, 2019. 20 Brewer spectrometers, 15 operators and experts from 9 countries took part in XII Regional intercomparison campaign. This campaign is part of the EUBREWNET ES1207 COST Action and is organized in collaboration with the “Area of Instrumentation and Atmospheric Research Area” of INTA, with the support of the Global Atmospheric Watch (GAW) program of th ...
WMO Greenhouse Gas Bulletin (GHG Bulletin) - No.15: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2018
Measurements of the content of radiocarbon (14C) in atmospheric carbon dioxide (CO2) provide a unique way to discriminate between fossil fuel combustion and natural sources of CO2. Simultaneous observations of CO2 and 14C demonstrate the decline of 14C content in atmospheric CO2 caused by CO2 addition from fossil fuel combustion. This finding illustrates the importance of long-term measurements of atmospheric composition by laboratories involved in the WMO Global Atmosphere Watch (GAW) Programme in helping identify greenhouse gas emission sources.
GAW Report, 247. Izaña Atmospheric Research Center : Activity Report 2017-2018
The Izaña Atmospheric Research Center (IARC), which is part of the State Meteorological Agency of Spain (AEMET), represents a centre of excellence in atmospheric science. It manages four observatories in Tenerife, including the high altitude Izaña Observatory, which was inaugurated in 1916 and has since carried out uninterrupted meteorological and climatological observations and become a WMO Centennial Station.
This report summarizes the many activities of the Izaña Atmospheric Research Center.
Boletín sobre los gases de efecto invernadero - N°15: Estado de los gases de efecto invernadero en la atmósfera según las observaciones mundiales realizadas en 2018
Las mediciones del contenido de radiocarbono (14C) en el dióxido de carbono atmosférico (CO2) ofrecen una manera singular de distinguir entre la quema de combustibles fósiles y las fuentes naturales de CO2 . Las observaciones simultáneas de CO2 y 14C demuestran la disminución del contenido de 14C en el CO2 atmosférico provocada por la incorporación de CO2 procedente de la quema de combustibles fósiles. Este hallazgo pone de relieve la importancia de las mediciones a largo plazo de la composición atmosférica realizadas por los laboratorios que participan en el Programa de la Vigilancia de la At ...
Guidance on Integrated Urban Hydrometeorological, Climate and Environmental Services - Volume I : Concept and Methodology
This Guidance on Integrated Urban Hydrometeorological, Climate and Environment Services (Volume I: Concept and Methodology) serves to assist WMO Members in the development and implementation of the urban services that address the needs of the cities stakeholders in their countries.
WIGOS Metadata Standard
French, Spanish and Arabic versions still in preparation
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 va ...
GCOS, 226. GCOS Surface Reference Network (GSRN) : Justification, requirements, siting and instrumentation options
World 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.
الوثائق الأساسية, 2. اللائحة الفنیة : المجلد الأول - المعايیر العامة والممارسات الموصى بها للأرصاد الجوية
المنظمة العالمية للأرصاد - المنظمة العالمية للأرصاد, 2019 (طبعة 2019; مجموعة مطبوعات المنظمة-No. 49)يحدد المؤتمر العالمي للأرصاد الجوية مكونات اللائحة الفنیة وفقاً للمادة 8 (د) من الاتفاقیة.
الغرض من ھذه اللائحة:
-أ- تیسیر التعاون فیما بین الأعضاء في مجالي الأرصاد الجوية والهیدرولوجیا؛
-ب- القیام، بأكثر الطرق فاعلیة، بتلبیة الاحتیاجات المحددة لمختلف مجالات الأرصاد الجوية
والهیدرولوجیا التشغیلیة في المجال الدولي؛
ج- ضمان التطابق والتوحید القیاسي بصورة كافیة في الممارسات والإجراءات المستخدمة في تحقیق
الأھداف الواردة في الفقرتین الفرعیتین أ وب الواردتین أعلاه.
世界气象组织 温室气体公报 - 第14期: 基于2018年全球观测资料的大气温室气体状况
世界气象组织 (WMO) - 世界气象组织 (WMO), 2019宇宙射线会在高层大气中产生极少量的 14CO2。14C具有放射性且缓慢衰减，其半 衰期为5700年，造成在大气CO2中以及在 由CO2形成的植物体中有少量但可测出的 14C含量。化石燃料是由数百万年前的植物 体所形成，因此，如果植物存活，在其留 在地壳中时，任何14C已开始衰变。
لمنظمة العالمية للأرصاد الجوية نشرة غازات الاحتباس الحراري: حالة غازات الاحتباس الحراري في الغلاف الجوي استناداً إلى الرصدات العالمیة المنفذة خلال عام 2018
الكربون في الغلاف الجوي وفي المواد النباتیة التي تتكون من ثاني أكسید الكربون ( CO2 ). وقد تكوَّن الوقود الأحفوري من مواد نباتیة منذ ملایین السنین، ومن ثم فإن أي كربون مشع ( 14C ) كان موجوداً عندما كانت النباتات حیّة قد تحلل منذ ذلك الحین أثناء بقاء تلك النباتات في قشرة الأرض
Бюллетень ВМО по Парниковым Газам - № 15: Содержание парниковых газов в атмосфере по данным глобальных наблюдений в 2018 г.
Измерения концентрации радиоактивного углерода (14C) в составе атмосферного углекислого газа (CO2) дают уникальный способ отличить продукты сжигания ископаемого топлива от природных источников CO2. Одновременные наблюдения за CO2 и 14C свидетельствуют о снижении содержания 14C в атмосферном CO2, вызванном выбросом в атмосферу дополнительных объемов CO2 в результате сжигания ископаемого топлива. Этот вывод иллюстрирует важность проведения долгосрочных измерений состава атмосферы лабораториями, участвующими в Программе Глобальной службы атмосферы ВМО (ГСА), для содействия установлению источников ...
Bulletin sur les gaz à effet de serre - N°15: Bilan des gaz à effet de serre présents dans l’atmosphère d’après les observations effectuées à l’échelle du globe en 2018
Les mesures de la teneur en radiocarbone (14C) dans le dioxyde de carbone atmosphérique (CO2) fournissent un moyen unique d’établir une distinction entre la combustion de matières fossiles et les sources naturelles de CO2. Des observations simultanées du CO2 et du 14C font état d’une diminution de la teneur en 14C dans le CO2 atmosphérique due à l’ajout de CO2 provenant de la combustion de matières fossiles. Cette découverte illustre l’importance des mesures à long terme de la composition de l’atmosphère effectuées par les laboratoires qui participent au Programme de la Veille de l’atmosphère ...
基本文件, 2号. 技术规则: 第一卷-通用气象标准和建议规范
世界气象组织 (WMO) - 世界气象组织 (WMO), 2019《技术规则》是根据《公约》第八条第4款由世界气象大会制定的。《技术规则》的制定是为了：
(1) 促进世界气象组织各会员之间在气象学和水文学方面的合作；
(2) 最有效地满足国际气象应用和业务水文各领域内的特殊需要；
(3) 在实现上述(1)和(2)两项目标的过程中，确保他们所使用的规范和程序具有足够的一致性和标准化。
Сборник основных документов, 2. Технический регламент, Том I — Общие метеорологические стандарты и рекомендуемые практики
Правила Технического регламента определяются Всемирным метеорологическим конгрессом в соответствии со статьей 8 («d») Конвенции.
Эти правила предназначены для того, чтобы:
a) облегчить сотрудничество в области метеорологии и гидрологии между Членами ВМО;
b) наилучшим образом удовлетворять конкретные потребности в различных областях применения метеорологии и оперативной гидрологии в международном масштабе;
с) обеспечить надлежащие единообразие и стандартизацию практик и процедур, применяемых при достижении вышеуказанных целей «a» и «b».
Compendium of WMO Competency Frameworks
The purpose of this Compendium is to provide Members with easy access to all the WMO competency frameworks that have been implemented since the first frameworks for aeronautical meteorological personnel were put in place in 2013. This publication accompanies the Guide to Competency (WMO-No. 1205), which provides competency implementation advice to Members.
GCOS, 230. Report of the Eleventh GCOS Reference Upper Air Network Implementation Coordination Meeting (GRUAN ICM-11)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2019
The Forecast Process: Using the Forecast Funnel
This lesson was developed by meteorologist, Dr. Mick Pope, with sponsorship from the Australian Bureau of Meteorology (BoM). The lesson is a somewhat broad-brush review of the overall forecast process, but with specific application of the forecast funnel approach as used by Australia's Bureau of Meteorology (BoM). The forecast process components include decision support and communication, use of numerical weather prediction, and applying the forecast funnel approach. The forecast funnel is described in detail, along with the forecaster time pyramid, and it is applied using a BoM forecast polic ...
CESM Distance Learning Course
The Community Earth System Model (CESM) is a fully-coupled, community, global climate model that provides state-of-the-art computer simulations of the Earth's past, present, and future climate states. The CESM Distance Learning Course is based on the CESM Tutorial held annually at the National Center for Atmospheric Research (NCAR) in Boulder, Colorado. This course consists of 12 lectures and 4 practical sessions on simulating the climate system and practical sessions on running Community Earth System Model (CESM), modifying components, and analyzing data. The course is targeted at the graduat ...
The Sun, The Earth, and Near-Earth Space
While solar radiation enables and sustains life on Earth, it also produces “space weather” that can profoundly impact different technologies, including telecommunications, satellite navigation, and the electric power grid. Solar flares can produce x-rays resulting in radio blackouts that block high-frequency radio waves. Solar Energetic Particles can penetrate satellite electronics and cause electrical failure. Coronal mass ejections (CMEs) can cause geomagnetic storms that induce ground currents and degrade power grid operations, sometimes catastrophically. The Sun, The Earth, and Near-Earth ...
Introducing the FORMOSAT-7/COSMIC-2 Satellite System - Next Generation Observations for Weather and Climate
The latest-generation Constellation Observing System for Meteorology, Ionosphere, and Climate (FORMOSAT-7/COSMIC-2) provides high-resolution observations of Earth's atmosphere, including the ionosphere. In this video, scientists and mission planners introduce the instrumentation used and describe the collaborations that made the COSMIC-2 mission possible. These experts describe how COSMIC uses a technique called radio occultation—making use of existing navigation satellite signals passing through the atmosphere to provide detailed measurements of temperature, pressure, and water vapor. They ex ...
Satellite Signals from Space: Smart Science for Understanding Weather and Climate
Want 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 ...
What's New in NBM v3.2
The U.S. National Weather Service (NWS) National Blend of Models (NBM) is scheduled to be upgraded to version 3.2 in November 2019. It includes the first probabilistic blended guidance for temperature, precipitation, snow, and ice. There are more blended forecast products for aviation, marine, water resources, fire weather, winter weather, and tropical weather. Version 3.2 uses more model components to improve guidance, and introduces a new Guam domain. For a transcript, see What’s New in NBM v3.2. (https://www.meted.ucar.edu/nwp/blend_v32_video/NBM_v32_script.pdf)
Basic Satellite and NWP Integration
NWP is one of the most important forecasting tools in our toolbox. Yet identifying when/where it isn’t capturing reality is difficult. In the short-term forecasting range, it is important as a forecaster to identify when/where NWP output isn’t matching reality. Then you can make appropriate changes to the forecast output. To find those mismatches anywhere in the world, one of the best tools is satellite imagery. In this lesson, we will focus on a few cases using satellite imagery to help identify mismatched features/processes between the satellite imagery and the NWP. Anyone trying to add valu ...
Interpreting and Communicating EPS Guidance: Germany Winter Event
This 45-minute lesson briefly introduces learners to the benefits of using probabilistic forecast information to assess weather and communicate forecast uncertainties. Learners will explore a winter weather event in Germany and practice synthesizing deterministic and probabilistic forecast guidance to better understand forecast uncertainties based on lead-time. Also, learners will decide how to best communicate the potential weather threats and impacts to local end users. The lesson is another component of the Forecast Uncertainty: EPS Products, Interpretation, and Communication distance learn ...
Satellite Foundational Course for JPSS: SatFC-J (SHyMet Full Course Access)
The 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 ...
Instrumentation and Measurement of Wind
This 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 ...
Spatial/Temporal Distribution of Rainfall and the Dynamic Factors Associated over African Great Lakes Region from 1981 to 2016
Based on Global Precipitation Climatology center (GPCC) precipitation data and Era-Interim Zonal and Meridional wind, relative humidity, Sea Level Pressure and Sea surface temperature data from ECMWF, Statistical methods were conducted to find out the interannual variability of rainfall and its dynamic factors in AGLR from 1981 to 2016. The results show that there are two (long and short) rainfall seasons over AGLR, MAM and OND respectively. The empirical orthogonal function was used to reveal through the dominant principal components (PC1) of the first EOF, the extreme years (wet and dry) for ...
AMCOMET Achievements 2010–2018
Many initiatives and partnerships have flourished under the umbrella of the African Union’s Strategy on Meteorology by aligning their actions with its priorities and demonstrating coherence of efforts. This report highlights key initiatives that have been made possible as a result of the increased visibility AMCOMET has brought to weather, climate and water services in Africa. The report gives us an opportunity to review the first eight years of AMCOMET and to give recognition to its many achievements.
إنجازات المؤتمر الوزاري الأفريقي للأرصاد الجوية 2018–2010
وازدهرت مبادرات وشراكات عديدة تحت مظلة استراتیجیة الاتحاد الأفريقي للأرصاد الجوية عن طريق مواءمة أعمالها مع أولوياتها وإثبات تماسك الجهود. ويبرز هذا التقرير المبادرات الرئیسیة التي تأتت نتیجة زيادة تسلیط المؤتمر الوزاري الضوء على خدمات الطقس والمناخ والماء في أفريقیا. ويتیح هذا التقرير لنا الفرصة لاستعراض سنوات المؤتمر الوزاري الثماني الأولى والاعتراف بإنجازاتھ العديدة.
AMCOMET Bilan 2010–2018
De nombreux partenariats et initiatives se sont épanouis grâce à la Stratégie pour la météorologie de l’Union africaine en alignant leurs activités sur ses priorités et en agissant de manière cohérente et concertée. Le présent rapport met en lumière les principales initiatives qui ont vu le jour grâce aux projecteurs que l’AMCOMET a braqués sur les services météorologiques, climatologiques et hydrologiques en Afrique. Il nous permet de faire le bilan des huit premières années de l’AMCOMET et de reconnaître à leur juste valeur ses nombreuses réalisations
Documentos básicos, 2. Reglamento Técnico, Volumen II: Servicio meteorológico para la navegación aérea internacional
Los objetivos del presente Reglamento son:
a) facilitar la cooperación entre los Miembros en materia de meteorología e hidrología;
b) satisfacer, de la forma más eficaz posible y en el plano internacional, las necesidades específicas en los diversos campos de aplicación de la meteorología y de la hidrología operativa en el plano internacional;
c) velar adecuadamente por la uniformidad y la normalización de las prácticas y los procedimientos empleados para alcanzar los objetivos enunciados en a) y b).
Add tag 
