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GAW Report, 253/Research Infrastructure Quality Assurance. International Comparison of Dobson Spectrophotometers
World Meteorological Organization (WMO) ; International Comparison of Dobson Spectrophotometers, Pretoria, Gauteng Province, South Africa, 7-18 October 2019 - WMO, 2020
GAW Report, 250. Global Atmosphere Watch Expert Meeting on Measurement-Model Fusion for Global Total Atmospheric Deposition (MMF-GTAD)
World Meteorological Organization (WMO) ; Global Atmosphere Watch Expert Meeting on Measurement-Model Fusion for Global Total Atmospheric Deposition (MMF-GTAD) (26-27 February 2019; Geneva, Switzerland) - WMO, 2020
GCOS, 232. Report of the twenty-seventh session of the WMO-IOC-UNEP-ISC steering committee for GCOS
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2020
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
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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 ...
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 ...
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
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 ...
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 ...
WMO Greenhouse Gas Bulletin (GHG Bulletin) - No.14: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2017
The latest analysis of observations from the WMO GAW Programme shows that globally averaged surface mole fractions(1) calculated from this in situ network for carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) reached new highs in 2017, with CO2 at 405.5 ± 0.1 ppm(2), CH4 at 1859 ± 2 ppb(3) and N2O at 329.9 ± 0.1 ppb. These values constitute, respectively, 146%, 257% and 122% of pre-industrial (before 1750) levels. The increase in CO2 from 2016 to 2017 was smaller than that observed from 2015 to 2016 and practically equal to the average growth rate over the last decade. The influence ...
GCOS, 218. 23rd Session of the GCOS/WCRP Atmospheric Observation Panel for Climate (AOPC-23)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2018
IOM Report, 128. Interlaboratory Comparison in the field of Temperature, Humidity and Pressure, in the WMO Regional Association VI (MM-ILC-2015-THP)
The subject of this report is evaluation of the interlaboratory comparison in the field of measurement of temperature, humidity and pressure. The interlaboratory comparison was held within the framework of the MeteoMet 2 project, in the scope of proficiency testing scheme organized by the University of Ljubljana, Faculty of Electrical Engineering, Laboratory of Metrology and Quality (UL-FE/LMK), except pressure part. All the analysis were done in accordance with accredited procedures.
Instrumentation and Measurement of Atmospheric Humidity
This lesson provides an overview of the science and techniques related to measuring humidity, or the amount of water vapor, in Earth's atmosphere. After beginning with a review of the units used for humidity, the learner will examine the three main types of hygrometers (material, thermodynamic, and optical) and explore instruments within each of these categories. The lesson provides information about the advantages and limitations of various humidity instruments. The effects of siting, sheltering, and ventilation on humidity measurements are also addressed. The lesson is part of the Instrument ...
Instrumentation and Measurement of Atmospheric Pressure
This 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.
GAW Report, 243. Report of the Fifth Erythemal UV Radiometers Intercomparison
This report presents the background information, procedures and results of the intercomparison of erythemal UV sensors carried out at the Central Observatory of Buenos Aires (OCBA) in 2018 against reference radiometers calibrated at the World Radiation Center (PMOD/WRC) in Davos during 2017. In this way, the data obtained at the measurement sites will be standardized and will be comparable locally and globally. Twenty sensors were calibrated, belonging to Argentine monitoring and research institutions. The associated relative uncertainty of each sensor was also estimated.
Бюллетень ВМО по Парниковым Газам - № 14: Содержание парниковых газов в атмосфере по данным глобальных наблюдений в 2017 г.
Последний анализ данных наблюдений, полученных в рамках Программы ГСА ВМО, показывает, что глобально усредненные приповерхностные молярные доли(1), рассчитанные на основании данных этой сети наблюдений in situ для двуокиси углерода (СO2), метана (СН4) и закиси азота (N2O), достигли в 2017 году новых максимумов, причем для CO2 он составил 405,5 ± 0,1 млн−1(2), для CH4 — 1859 ± 2 млрд−1(3), а для N2O — 329,9 ± 0,1 млрд−1. Эти значения составляют соответственно 146 %, 257 % и 122 % по отношению к доиндустриальным (до 1750 года) уровням. Увеличение содержания CO2 в атмосфере с 2016 по 2017 год был ...
Boletín sobre los gases de efecto invernadero - N°14: Estado de los gases de efecto invernadero en la atmósfera según las observaciones mundiales realizadas en 2017
El último análisis de las observaciones realizadas en el marco del Programa de la VAG de la OMM muestra que los promedios mundiales de las fracciones molares en superficie1) calculados a partir de esta red in situ para el dióxido de carbono (CO2), el metano (CH4) y el óxido nitroso (N2O), alcanzaron nuevos máximos en 2017 al registrar 405,5 ± 0,1 ppm2) para el CO2, 1859 ± 2 ppb3) para el CH4 y 329,9 ± 0,1 ppb para el N2O, lo que representa, respectivamente, el 146 %, el 257 % y el 122 % de los niveles preindustriales (antes de 1750). El aumento de CO2 de 2016 a 2017 fue inferior al observado d ...
Bulletin sur les gaz à effet de serre - N°14: Bilan des gaz à effet de serre présents dans l’atmosphère d’après les observations effectuées à l’échelle du globe en 2017
La toute derniere analyse des donnees d’observation recueillies par le reseau in situ du Programme de la VAG de l’OMM revele qu’a l’echelle du globe, les fractions molaires en surface1) du dioxyde de carbone (CO2), du methane (CH4) et du protoxyde d’azote (N2O) ont atteint de nouveaux pics en 2017, s’etablissant respectivement a 405,5}0,1 ppm2), 1 859}2 ppb3) et 329,9}0,1 ppb. Ces valeurs representent respectivement 146 %, 257 % et 122 % des niveaux preindustriels (avant 1750). Le taux d’accroissement du CO2 entre 2016 et 2017 etait moins eleve qu’entre 2015 et 2016 et pratiquement egal a l ...
GAW Report, 242. 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Measurement Techniques (GGMT-2017)
The meeting reviewed current WMO data quality objectives, reference scales and observation strategies, including calibration, quality control, data management and archiving. Target species were carbon dioxide and other greenhouse gases, stable isotopes, and radiocarbon in greenhouse gas measurements. The workshop discussed in detail the harmonization and quality control of isotope measurements, the extension of the measurement network towards more polluted and urban areas, the use of low-cost sensors, and the collaboration of the scientific greenhouse gas and carbon cycle community with the me ...
GESAMP - Reports and Studies, 97. The magnitude and impacts of anthropogenic atmospheric nitrogen inputs to the ocean
World Meteorological Organization (WMO) ; Food and Agriculture Organization (FAO); United Nations Educational, Scientific and Cultural Organization (UNESCO); et al. - WMO, 2018The present global modelling study of the Nr atmospheric cycle and Nr deposition to the ocean is the first that evaluates past, present and future Nr atmospheric deposition accounting for ON primary sources as well as for secondary ON chemical formation as a N-dependent process. While the total Nr deposition to the ocean is not expected to change significantly by 2050, the relative importance of oxidized and reduced N is expected to change, with an increasing proportion of ammonium compared to nitrate, resulting from more efficient controls on terrestrial emissions of nitrogen oxides (NOx) com ...
世界气象组织 温室气体公报 - 第14期: 基于2017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), 2018对WMO GAW计划的观测资料进行的最新分析表明，利用该实地网络的资料计算出的二氧化碳（CO2）、甲烷（CH4）和氧化亚氮（N2O）的全球平均表面摩尔分数(1) 在2017年创下了新高，其中CO2为405.5 ± 0.1 ppm(2)、CH4为1859 ± 2 ppb(3)以及N2O为329.9 ± 0.1 ppb。这些数值分别是工业化前（1750年之前）水平的146%、257% 和122%。2016年至2017年的CO2增幅小于2015年至2016年观测到的增幅，并几乎等于过去十年的平均增长率。厄尔尼诺事件的影响在2015年和2016年达到峰值并推动了这一时期的增长率上升，但该事件在2017年的影响骤降。关于CH4，2016年至2017年的增幅小于2015年至2016年观测到的增幅，但几乎等于过去十年的平均值。关于N2O，2016年至2017年的增幅高于2015年至2016年观测到的增幅，并几乎等于过去十年的平均增长率。NOAA年度温室气体指数（AGGI）[4]显示，从1990年至2017年，长寿命温室气体（LLGHG）辐射强迫增加了41%，其中CO2约占这一增幅的82%。
لمنظمة العالمية للأرصاد الجوية نشرة غازات الاحتباس الحراري: حالة غازات الاحتباس الحراري في الغلاف الجوي استناداً إلى الرصدات العالمیة المنفذة خلال عام 2017
یتبین من أحدث تحلیل للرصدات من برنامج المراقبة العالمیة للغلاف الجوي ( GAW ) أن المتوسط العالمي للكسور الجزیئیة( 1) المحسوب من ھذه الشبكة الموقعیة فیما یتعلق بثاني أكسید الكربون ( CO2 ) والمیثان CH4) ) وأكسید النیتروز ( N2O ) قد بلغ مستویات مرتفعة جدیدة في عام 2017 ، بحیث بلغ المتوسط فیما یتعلق بثاني أكسید الكربون 405.5 ± 0.1 جزء في الملیون( 2)، وفیما یتعلق بالمیثان 1859 ± 2 جزء في البلیون( 3)، وفیما یتعلق بأكسید النیتروز 329.9 ± 0.1 جزء في البلیون. وتشكل ھذه القیَم، على التوالي، 146 في المائة و 257 في المائة و 122 في المائة من مستویات ما قبل العصر الصناعي (أي ما قبل عام 1750 ). وكانت الزیادة ...
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GCOS, 220. Report of the Tenth GCOS Reference Upper Air Network Implementation and Coordination Meeting (GRUAN ICM-10)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2018
Том 66(1) - 2017 г. - Новое издание Международного атласа облаков
Содержание
- Новое издание Международного атласа облаков。 2
- Понимать облака для того, чтобы предвидеть будущий климат。 8
- Изменения в засеве облаков по всему миру при активном воздействии на погоду。 12
- Эволюция науки о климате。 16
- Технический регламент ВМО Интервью с Димитаром Ивановым。 24
- Фотоочерк: лауреаты конкурса фотографий для календаря ВМО。 30
- Годовой глобальный углеродный бюджет。 34
- Интегрированная глобальная информационная система по парниковым газам (ИГИСПГ)。 38
- Европа, развитие климатического обслуживания ...
Vol. 66(1) - 2017 - New Edition of the International Cloud Atlas
is an issue of Bulletin. WMO, 2017
WMO Greenhouse Gas Bulletin (GHG Bulletin) - No.13: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2016
The latest analysis of observations from the WMO GAW Programme shows that globally averaged surface mole fractions(2) calculated from this in situ network for CO2, methane (CH4) and nitrous oxide (N2O) reached new highs in 2016, with CO2 at 403.3 ± 0.1 ppm, CH4 at 1 853 ± 2 ppb(3) and N2O at 328.9 ± 0.1 ppb. These values constitute, respectively, 145%, 257% and 122% of pre-industrial (before 1750) levels. The record increase of 3.3 ppm in CO2 from 2015 to 2016 was larger than the previous record increase, observed from 2012 to 2013, and the average growth rate over the last decade. The El Niño ...
GCOS, 207. 22nd Session of the GCOS/WCRP Atmospheric Observation Panel for Climate (AOPC-22)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2017
GOES-R Series Faculty Virtual Course: Severe Storms
In this webinar recording, Michael Bowlan explains how GOES-R/16 can help improve forecasts of severe storms and provide forecasters with real-time information about lightning, flooding potential and other hazards. The high-resolution Advanced Baseline Imager (ABI) data can indicate whether thunderstorm updrafts are gathering strength or weakening, helping aid forecasters in making warning decisions. The ABI can also aid in identifying storms and convective complexes that have stalled or are “training”, which can signal a flood risk and help forecasters issue flood or flash flood warnings soon ...
GOES-R Series Faculty Virtual Course: Tropical Cyclones
In this webinar recording, Andrea Schumacher demonstrates the GOES-R series' new capabilities for real-time tropical cyclone analysis and monitoring, which will contribute significantly to improved hurricane track and intensity forecasts. The GOES-16 imager will provide dramatic new views of tropical cyclone phenomena, offering vastly improved time and spatial resolution as well as color composite images to enhance cloud bands and other features. This webinar will also explore the role of the Geostationary Lightning Mapper (GLM) in helping identify areas of strong thunderstorms associated with ...
Instrumentation and Measurement of Atmospheric Temperature
This 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.
GOES-R Series Faculty Virtual Course: Advanced Baseline Imager
In this webinar recording, Tim Schmit demonstrates the improved temporal, spatial, spectral and calibration attributes of the Advanced Baseline Imager (ABI) on the GOES-R series. The main uses for each of the sixteen spectral bands will be covered, using examples from the recently launched GOES-16 ABI. Imagery and data loops for various types of atmospheric phenomena will be presented to illustrate the improved spectral capabilities and higher temporal and spatial resolution of the ABI. This is a recorded webinar presented by an instructor at his home institution. Audio variations may exist.
Foundations of Meteorological Instrumentation and Measurements
This lesson provides an introduction to the instrumentation used for meteorological measurements. Aimed at undergraduate and graduate students in meteorology and the atmospheric sciences, it examines the types of observing systems available to measure temperature, pressure, humidity, trace gases, clouds and aerosols, winds, precipitation, and radiation. Learners will explore the main components of an instrument and become acquainted with performance characteristics including types of errors. This introductory lesson provides a foundation for more detailed training focused on measurement of spe ...
Meteorological Instrument Performance Characteristics
This 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 ...
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