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GAW Report, 280. Fifth WMO Filter Radiometer Comparison (FRC-V) 27 September to 25 October 2021 Davos, Switzerland (GAW 280)
World Meteorological Organization (WMO) ; Stelios Kazadzis, Natalia Kouremeti, Julian Gröbner - WMO, 2023The Fifth Filter Radiometer Comparison (FRC-V) was held with one year of delay due to COVID-19 pandemic and relative restrictions, concurrently with the 13th International Pyrheliometer Comparison in Davos, Switzerland. Instrumentation belonging to different AOD global networks were invited and participated. Also, three reference instruments from the Calibration of Aerosol Remote Sensing (CARS) of the pan-European research infrastructure ACTRIS (Aerosol, Clouds and Trace Gases Research Infrastructure) facility participated. The comparison took place at the premises of PMOD/WRC from September 2 ...
GAW Report, 276. Izaña Atmospheric Research Center : Activity Report 2019-2020
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.
GAW Report, 273. Seventh Session of the Research Board Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee
World Meteorological Organization (WMO) ; Seventh session report of the Research Board Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee (8–11 February 2021, Geneva, Switzerland) - WMO, 2022
GAW Report, 257. Fourteenth Intercomparison Campaign of the Regional Brewer Calibration Centre Europe
World Meteorological Organization (WMO) ; Agencia Estatal de Meteorología (AEMET); Fourteenth Intercomparison Campaign of the Regional Brewer Calibration Centre Europe (El Arenosillo Atmospheric Sounding Station, Huelva, Spain, 17–28 June 2019) - WMO, 2021XIV 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 17 – 28 of June, 2019. 21 Brewer spectrometers, 15 operators and experts from 11 countries took part in XIV Regional intercomparison campaign. The campaign was organized in collaboration with the “Area of Instrumentation and Atmospheric Research” of INTA, with the support of the Global Atmospheric Watch (GAW) program of the World Meteorological Organization (WMO). The Brewer travelli ...
ORM11 GAW 271, 271. Report of Part II of the Eleventh Meeting of the Ozone Research Managers of the Parties to the Vienna Convention for the Protection of the Ozone Layer (Online Meeting, 19-23 July 2021)
World Meteorological Organization (WMO) ; United Nations Environment Programme (UNEP); Part II of the Eleventh Meeting of the Ozone Research Managers of the Parties to the Vienna Convention for the Protection of the Ozone Layer (Online Meeting, 19-23 July 2021) - WMO, 2021
GAW Report, 267/Research Infrastructure Quality Assurance. Fifth International Comparison of Dobson Spectrophotometers Villa Ortúzar Observatory, Argentina, 4-22 March 2019
World Meteorological Organization (WMO) ; Glen McConville, Koji Miyagawa, and Gerardo Carbajal Benítez - WMO, 2021This report describes the Fifth Intercomparison of Dobson Spectophotometers (IC/BUA-19) carried out at the Main Buenos Aires Observatory (Villa Ortúzar) of the Servicio Meteorológico Nacional (Argentina) (SMN) from 4 March to 22 March 2019. The Dobson spectrophotometer D065 was used as a reference for comparison of measured ozone column values and to calibrate individual instruments. The Regional Standard (R-III) also participated in the event and was calibrated. Through this activity, the data obtained by individual Dobson Spectrophotometers at different measurement sites will be standardized ...
Report on the Unexpected Emissions of CFC-11 (WMO-No. 1268)
The Report was written by the Scientific Assessment Panel to the Montreal Protocol on Substances that Deplete the Ozone Layer. CFC-11 (CCl3F) was reportedly fully controlled under the Montreal Protocol since 2010. However, a 2018 scientific paper revealed that instead of decreasing, CFC-11 emissions were increasing. In reaction, the Protocol parties agreed to Decision XXX/3: Unexpected emissions of trichlorofluoromethane (CFC-11). This Report addresses: current and past observations of CFC-11 atmospheric abundances; information on the CFC-11 global and regional emission increase and subsequent ...
GAW Report, 266. System and Performance Audit of Surface Ozone, Carbon Monoxide, Methane, Carbon Dioxide and Nitrous Oxide at the Global GAW Station Zugspitze-Schneefernerhaus Germany, September 2020
World Meteorological Organization (WMO) ; C. Zellweger, M. Steinbacher, B. Buchmann, R. Steinbrecher - WMO, 2021The 6th system and performance audit by WCC-Empa at the global GAW station Zugspitze-Schneefernerhaus (ZSF) was conducted from 8 - 9 September 2020 in agreement with the WMO/GAW quality assurance system. This report summarises the assessment of the Zugspitze-Schneefernerhaus GAW station in general, as well as the surface ozone, methane, carbon dioxide, carbon monoxide and nitrous oxide measurements in particular. The recommendations found in this report are graded as minor, important and critical and are complemented by a priority indication and a suggested completion date.
GAW Report, 263. Report of the Fifth Methane Reference Gas Inter-comparison Experiment for Japan from 2018 to 2019
World Meteorological Organization (WMO) ; Japan Meteorological Agency (JMA); Teruo Kawasaki, Atsuya Kinoshita, Yousuke Sawa, Akihiko Murata, Shinji Morimoto, Shohei Murayama, Toshinobu Machida, Motoki Sasakawa, Kazuhiro Tsuboi - WMO, 2021The WCC-JMA organized six rounds of the CH4 reference gas inter-comparison experiments from 2001 to 2019 to quantify differences among CH4 standard scales implemented at each participating laboratory as well as to monitor the long-term stability of standard gases in Asia and the South-West Pacific. In the 5th round inter-comparison for Japan, two reference gas cylinders were circulated in turn to JMA, JAMSTEC, TU, AIST, NIES, MRI, and JMA from September 2018 to April 2019. The measurement results of JAMSTEC and WCC-JMA have shown a good agreement with differences of less than 0.4 ppb for two ...
GAW Report, 265. System and Performance audit for Non-Methane Volatile Organic Compounds at the Global GAW Station Cape Verde, December 2019
A system and performance audit for VOCs was conducted at the Cabo Verde Atmospheric Observatory (CVO) (co-organised by the Chemistry Department, University of York and by the World Calibration Centre for VOC, WCC-VOC). The audit was conducted from November 27th to December 2nd in year 2019. The observatory is operated as a global GAW station and analyses on-line air samples directly collected at the station towers. The audit was conducted according to the existing WMO/GAW guidelines and SOPs for audits . The audit directly involved the responsible site research scientist and the station manage ...
GAW Report, 264. Report of the Sixth Methane Reference Gas Inter-comparison Experiment for Asia from 2018 to 2019
World Meteorological Organization (WMO) ; Teruo Kawasaki, Atsuya Kinoshita, Yousuke Sawa, Shuangxi Fang, Haeyoung Lee, Yogesh K. Tiwari - WMO, 2021The WCC-JMA organized six rounds of the CH4 reference gas inter-comparison experiments from 2001 to 2019 to quantify differences among CH4 standard scales implemented at each participating laboratory as well as to monitor the long-term stability of standard gases in Asia and the South-West Pacific. In the 6th round robin inter-comparison for Asia, two reference gas cylinders were circulated in turn to JMA, CMA, KMA/NIMS, IITM, and JMA from January 2018 to September 2019. The inter-comparison results confirmed that the differences between each laboratory and WCC-JMA were within the GAW networ ...
Bulletin de l’OMM sur les aérosols N°4 - Avril 2021 : Aérosols issus de la combustion de la biomasse
GAW Report, 261. Sixth Session of the CAS Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee
World Meteorological Organization (WMO) ; CAS Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee, Sixth session (11-14 November 2019; Geneva, Switzerland) - WMO, 2020
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GAW Report, 248. Decimosegunda campaña de intercomparación del Centro Regional de Calibración Brewer para Europa
Agencia Estatal de Meteorología (AEMET); Estación de Sondeos Atmosféricos de El Arenosillo, Huelva (España) 29 de mayo a 9 de junio de 2017 - 2020
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GAW Report, 246. Decimotercera campaña de intercomparación del Centro Regional de Calibración Brewer para Europa
Agencia Estatal de Meteorología (AEMET); Observatorio Atmosférico de Arosa (Suiza) 30 de julio a 10 de agosto de 2018 - 2020
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
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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 ...
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.
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.
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 ...
GAW Report, 240. Report of the Second International UV Filter Radiometer Calibration Campaign UVC-II
The objective of the campaign was to provide a calibration traceable to the WCC-UV reference for all participating radiometers, in view of homogenizing UV measurements in all participating countries.
GAW Report, 235. Vegetation Fire and Smoke Pollution Warning and Advisory System (VFSP-WAS): Concept Note and Expert Recommendations
World Meteorological Organization (WMO) ; IBBI ; The Global Fire Monitoring Center (GFMC) - WMO, 2018This concept note contains the expert recommendations resulting from discussions at the international workshop on Forecasting Emissions from Vegetation Fires and their Impacts on Human Health and Security in South-East Asia, which was hosted by the Indonesian Agency for Meteorology, Climatology and Geophysics (BMKG), Jakarta, from 29 August to 1 September 2016. The workshop was organized by the World Meteorological Organization (WMO) and the Interdisciplinary Biomass Burning Initiative (IBBI) in collaboration with the United Nations Office for Disaster Reduction/International Wildfire Prepared ...
GAW Report, 228. WMO Global Atmosphere Watch (GAW) Implementation Plan: 2016-2023
This Implementation Plan (IP) builds upon the growing importance of atmospheric composition observations and predictions, and focuses on research that enables a wide variety of Products and Services related to atmospheric composition. New GAW-lead thematic application areas will help reduce societal risks from climate change, high-impact weather and events, and urban air pollution, and support conventions and treaties focused on sustainable development. This IP is designed to help World Meteorological Organization (WMO) Members meet their needs and to support plans of national, regional, and i ...
GAW Report, 227. WMO/GAW Aerosol Measurement Procedures, Guidelines and Recommendations
It is the goal of the Global Atmosphere Watch (GAW) programme to ensure long - term measurements in order to detect trends in global distributions of chemical constituents in air and the reasons for them (WMO, 2001a). With respect to aerosols, the objective of GAW is to determine the spatio - temporal distribution of aerosol properties related to climate forcing and air quality on multi - decadal time scales and on regional, hemispheric and global spatial scales. The objective of GAW Report No. 153, published in 2003, was to provide a synthesis of methodologies and procedures for measuring the ...
GAW Report, 230. Airborne dust : from R&D to operational forecast : 2013-2015 Activity Report of the SDS- WAS Regional Center for Northern Africa, Middle East and Europe
The 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT - 2015) took place from 13 to 17 September 2015 at the Scripps Institution of Oceanography in La Jolla (CA), USA. It was the 40 th anniversary of the first GGMT meeting (then called "CO 2 Experts Meeting") which was also held at Scripps in 1974. WMO has provided the framework for all carbon dioxide experts meetings since 1975. IAEA in Vienna joined WMO as a co - organizer in 1997 due to the increased use of carbon isotopes in studying the carbon cycle. The meeting reviewed current WMO ...
GAW Report, 229. 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Tracers Measurement Techniques (GGMT-2015)
The 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases, and Related Measurement Techniques (GGMT - 2015) took place from 13 to 17 September 2015 at the Scripps Institution of Oceanography in La Jolla (CA), USA. It was the 40 th anniversary of the first GGMT meeting (then called "CO 2 Experts Meeting") which was also held at Scripps in 1974. WMO has provided the framework for all carbon dioxide experts meetings since 1975. IAEA in Vienna joined WMO as a co - organizer in 1997 due to the increased use of carbon isotopes in studying the carbon cycle. The meeting reviewed current WMO ...
GAW Report, 226. Coupled Chemistry-Meteorology/ Climate Modelling (CCMM): status and relevance for numerical weather prediction, atmospheric pollution and climate research
Online coupled meteorology atmospheric chemistry models have undergone a rapid evolution in recent years. Although mainly developed by the air quality modelling community, these models are also of interest for numerical weather prediction and climate modelling as they can consider not only the effects of meteorology on air quality, but also the potentially important effects of atmospheric composition on weather. This report provides the main conclusions from the Symposium on “Coupled Chemistry-Meteorology/Climate Modelling: Status and Relevance for Numerical Weather Prediction, Air Quality and ...
GAW Report, 225. WMO/UNEP Dobson Data Quality Workshop
The Dobson Data Quality Workshop was the technological meeting of the Dobson total ozone data managers and experts from the central facilities of the Global Atmosphere Watch (GAW) Programme. The action was initiated by the recommendation of the 7th Ozone Research Managers Meeting that was held in Geneva, Switzerland, from 18-21 May 2008. The Scientific Advisory Group for Ozone (SAG-Ozone) of GAW provided expert guidance and the Solar and Ozone Observatory Hradec Kralove (SOO) of the Czech Hydrometeorological Institute (CHMI) took the responsibility for the local arrangements of the workshop th ...
GAW Report, 221. Report of the First Meeting of the WMO GAW Task Team on Observational Requirements and Satellite Measurements (TT-ObsReq) as regards Atmospheric Composition and Related Physical Parameters
WMO, 2015
GAW Report, 220. Report of the Second Session of the CAS Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee (EPAC SSC)
WMO, 2015
GAW Report, 224. Ninth Intercomparison Campaign of the Regional Brewer Calibration Center Europe (RBCC-E)
This 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 ...
GAW Report, 223. Eighth Intercomparison Campaign of the Regional Brewer Calibration Center for Europe (RBCC-E)
The 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 ...
GAW Report, 214. Report of the GAW 2013 Symposium and the Fourth Session of the CAS JSC OPAG-EPAC
The meeting reviewed current WMO data quality objectives and observation scales, covering such topics as carbon dioxide and other greenhouse gases, stable isotopes, radiocarbon in greenhouse gas measurements, calibration, quality control, data management and archiving. The workshop also discussed new and emerging technologies, including measurements of greenhouse gases with high-precision spectroscopic methods. The group made several recommendations on the WMO data quality objectives, as well as on the development of the GAW Programme infrastructure. These recommendations are summarized in the ...
GAW Report, 213. 17th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Tracers Measurement Techniques (GGMT-2013)
The meeting reviewed current WMO data quality objectives and observation scales, covering such topics as carbon dioxide and other greenhouse gases, stable isotopes, radiocarbon in greenhouse gas measurements, calibration, quality control, data management and archiving. The workshop also discussed new and emerging technologies, including measurements of greenhouse gases with high-precision spectroscopic methods. The group made several recommendations on the WMO data quality objectives, as well as on the development of the GAW Programme infrastructure. These recommendations are summarized in the ...
GAW Report, 212. Standard Operating Procedures (SOPs) for Spectral Instruments Measuring Spectral Solar Ultraviolet Irradiance
This document outlines such operating procedures for spectral UV measurements and is intended for use by station operators. As it does not present the details of instrument characterization and calibration, the guide should be used in conjunction with GAW Reports No. 125 [WMO, 2001], No. 126 [WMO, 1998], No. 146 [WMO, 2003], and No. 191 [WMO, 2010] providing more detail and background information.
GAW Report, 211. Rationalizing nomenclature for UV doses and effects on humans
World Meteorological Organization (WMO) ; Commission Internationale de l'Eclairage (CIE) - WMO, 2014The document reports on current knowledge and experience within the specific field of light and lighting described and is intended to be used by the CIE membership and other interested parties. It should be noted, however, that the status of this document is advisory and not mandatory.
GORMP, 54. Report of the Ninth Meeting of the Ozone Research Managers of the Parties to the Vienna Convention for the Protection of the Ozone Layer
WMO, 2014
GAW Report, 207. Recommendations for a Composite Surface-Based Aerosol Network
Suspended particulate matter in the atmosphere, commonly known as aerosol by the technical and scientific community, plays a role in climate change, air quality/human health, ozone depletion and the long-range transport and deposition of toxics and nutrients. Aerosols have many sources ranging from sea spray and mineral dust that are mechanically generated by wind at the Earth’s surface to sulphates, nitrates and organics produced primarily by chemical reaction of gases in the atmosphere producing non-volatile products that condense to form particles. In addition, semi-volatile substances such ...
GAW Report, 204. Standard Operating Procedures (SOPs) for Air Sampling in Stainless Steel Canisters for Non-Methane Hydrocarbons Analysis
World Meteorological Organization (WMO) ; Weiß Elisabeth; World Calibration Centre for Volatile Organic Compounds (WCC-VOCs); et al. - WMO, 2012This document gives guidance for sampling of atmospheric volatile non-methane hydrocarbons (NMHCs) in whole air using electro-polished stainless steel canisters in the WMO GAW network. The described procedures are appropriate for alkanes, alkenes, alkynes, and aromatic compounds with two to six carbon atoms (C2 to C6). NMHCs with more than six carbon atoms tend to be adsorbed on the canister surfaces and may only be partially recovered. The procedures are valid for analyzing volatile alkane, alkyl and isoprene mole fractions in continental background air with mole fractio ...
GAW Report, 205. WMO/IGAC Impacts of Megacities on Air Pollution and Climate
World Meteorological Organization (WMO) ; International Global Atmospheric Chemistry project (IGAC) - WMO, 2012The World Meteorological Organization and the International Global Atmospheric Chemistry (IGAC) project have released a study of how megacities affect the climate and pollute the atmosphere. The report concludes that rapid urbanization will pose serious health risks to city dwellers unless stronger efforts are made to reduce pollution.
GAW Report, 203. The Atmospheric Input of Chemicals to the Ocean
World Meteorological Organization (WMO) ; International Maritime Organization (IMO); Food and Agriculture Organization (FAO); et al. - WMO, 2012The atmospheric input of chemicals to the ocean is closely related to a number of important global change issues. The increasing input of atmospheric anthropogenic nitrogen species to much of the ocean may cause a low level fertilization of the ocean that could result in an increase in marine 'new' productivity of up to ~3% and thus impact carbon drawdown from the atmosphere. However, the increase in nitrogen inputs are also likely to increase the formation of nitrous oxide in the ocean. The increased emission of this powerful greenhouse gas will partially offset the climate forcing impact res ...
GAW Report, 202. Workshop on Modelling and Observing the Impacts of Dust Transport/Deposition on Marine Productivity
In this report we evaluate the state-of-art knowledge and uncertainties regarding the deposition of dust on the ocean and its mineralogical composition provided by models and measurement datasets. Global climate models were recently intercompared by Huneeus et al. (2011) using results from the AEROCOM model intercomparison. The deposition calculations from these global models are frequently used as input for biological productivity calculations. A model measurement comparison (Huneeus, 2011) shows that global models do reproduce the observed data over several orders of magnitude. However, the ...
GAW Report, 199. Tropospheric Ozone Changes : observations, state of understanding and model performances
This report presents an almost complete collection of extended abstracts of the oral and poster presentations of the second workshop on tropospheric ozone changes. For some presentations no extended abstract is included as their content has already been published in peer reviewed literature or manuscripts are under preparation. A summary of this workshop has been submitted as a newsletter article of the International Global Atmospheric Chemistry Project (IGAC, 2011). The original workshop presentations are available from the meeting web site at
GAW Report, 197. Addendum for the Period 2012-2015 to the WMO Global Atmosphere Watch (GAW) Strategic Plan 2008-2015
The GAW Strategic Plan serves to guide the development of the Programme during an eight year period. The present ‘WMO Global Atmosphere Watch (GAW) Strategic Plan: 2008-2015’, published as GAW Report No. 172, specified implementation tasks for the period 2008-2011 [WMO, 2007c]. The purpose of this document, the ‘Addendum to the GAW Strategic Plan: 2008-2015’, is to guide the work of all GAW contributors for the period 2012-2015. The general strategy for the development of the Programme, the long-term objectives, the implementation principles, and the various goals spelled out in sub-chapters o ...
GORMP, 53. Report of the Eighth Meeting of the Ozone Research Managers of the Parties to the Vienna Convention for the Protection of the Ozone Layer
WMO, 2011
GAW Report, 195. WMO/GAW Expert Workshop on Global Long-term Measurements of Nitrogen Oxides and Recommendations for GAW Nitrogen Oxides Network
World Meteorological Organization (WMO) ; Gilge S.; Plass-Duelmer C.; et al. - WMO, 2011 (WMO/TD-No. 1570)Nitrogen oxides are a component of a group of reactive gases required to be measured in the GAW Programme. The reactive gases group focuses on gases known to be intimately involved in various aspects of the chemistry of the troposphere and includes surface ozone (O3), carbon monoxide (CO), volatile organic compounds (VOCs), and sulphur dioxide (SO2), as well as oxidized nitrogen species. The sum of nitric oxide (NO) and nitrogen dioxide (NO2) has traditionally been called NOx. The sum of oxidized nitrogen species with an oxidation number >1, both organic and inorganic, is referred to as ...
GAW Report, 194. 15th WMO/IAEA Meeting of Experts on Carbon Dioxyide, other Greenhouse Gases and Related Tracers Measurement Techniques
The 15th WMO/IAEA Meeting of Experts on Carbon Dioxide, Other Greenhouse Gases and Related Tracers Measurement Techniques took place from 7 to 10 September 2009 at the MaxPlanck-Institute for Biogeochemistry in Jena, Germany. The meeting reviewed current WMO data quality objectives, covering such topics as carbon dioxide and other greenhouse gases, stable isotopes, radiocarbon in greenhouse gas measurements, calibration, quality control, data management and archiving. The experts also discussed new and emerging technologies, including measurements of greenhouse gases with high-precision spectr ...
GAW Report, 189. Report of the MACC/GAW Session on the Near-Real-Time Delivery of the GAW Observations of Reactive Gases
World Meteorological Organization (WMO) ; Penkett Stuart; Schultz M.; et al. - WMO, 2010 (WMO/TD-No. 1527)
GAW Report, 191. Instruments to Measure Solar Ultraviolet Radiation : part 4: Array Spectroradiometers
World Meteorological Organization (WMO) ; Bais A.; Bernhard G.; et al. - WMO, 2010 (WMO/TD-No. 1538)This paper is part four of a series of documents dedicated to instruments for the measurement of solar ultraviolet radiation. The series of documents has been drawn up by the WMO Scientific Advisory Group on UV Monitoring and the UV Instrumentation Subgroup. The aim of the series is to define instrument specifications and guidelines for instrument characterization that are needed for reliable UV measurements.
GAW Report, 192. Guidelines for the Measurement of Atmospheric Carbon Monoxide
The Global Atmosphere Watch (GAW) Programme of the World Meteorological Organization (WMO) aims at providing reliable long-term observations of the chemical composition and physical properties of the atmosphere that are relevant for understanding atmospheric chemistry and climate change. Reactive gases are one of the foci of the GAW programme. This group includes carbon monoxide (CO), which is present only in trace quantities in the atmosphere but plays an important role in atmospheric chemistry. Compatibility of data from different observational platforms and sites is of crucial importance fo ...
GAW Report, 184. Technical Report of Global Analysis Method for Major Greenhouse Gases by the World Data Center for Greenhouse Gases
World Meteorological Organization (WMO) ; Mori Kazumasa; Hirahara Takatoshi; et al. - WMO, 2009 (WMO/TD-No. 1473)
GAW Report, 187. Joint report of COST Action 728 and GURME - Review of the capabilities of meteorological and chemistry-transport Models for describing and predicting air pollution episodes
This report forms the first deliverable of Working Group 3 of the COST Action 728 on “Enhancing Mesoscale Meteorological Modelling Capabilities for Air Pollution and Dispersion
Applications”. The purpose of this report is to provide an overview of the current capabilities and applications of mesoscale modelling systems for describing and predicting air quality and related meteorological conditions. The applications are discussed from the perspective of meteorology, which is in line with the main aim of the COST 728 Action.
GAW Report, 182. IGACO-Ozone and UV Radiation Implementation Plan
World Meteorological Organization (WMO) ; Mälkki A.; Staehelin Johannes; et al. - WMO, 2009 (WMO/TD-No. 1465)
Vol. 57 (1) - January 2008 - Observing our planet for a better future
Observing our planet for a better future was the theme for World Meteorological Day 2008. The feature articles in this issue consider the importance of maintaining and enhancing observations of weather, climate and water to ensure the well-being of future generations from a number of angles.
GORMP, 51. Report of the Seventh Meeting of the Ozone Research Managers of the Parties to the Vienna Convention for the Protection of the Ozone Layer
WMO, 2008
Scientific Assessment of Ozone Depletion: 2006 - Twenty Questions and Answers about the Ozone Layer: 2006 update (GORMP 50)
World Meteorological Organization (WMO) ; National Oceanic and Atmospheric Administration (NOAA); United Nations Environment Programme (UNEP); et al. - WMO, 2007To help maintain a broad understanding of the relationship between ozone depletion, ODSs, and the Montreal Protocol, this component of the Scientific Assessment of Ozone Depletion: 2006 presents 20 questions and answers about the often-complex science of ozone depletion. Most questions and answers are updates of those presented in previous Ozone Assessments, while others have been added or expanded to address newly emerging issues. The questions address the nature of atmospheric ozone, the chemicals that cause ozone depletion, how global and polar ozone depletion occur, the success of the Mont ...
Ozone data for the world (ODW DVD#2 - 1926-2007) = Données mondiales sur l'ozone (ODW DVD#2 - 1926-2007)
Guide to the WMO/GAW World Ultraviolet Radiation Data Centre, version 6.0
This document describes the procedures for data submission and information extraction at the World Ultraviolet Radiation Data Centre (WUDC), which is a subset of the World Ozone and Ultraviolet Radiation Data Centre (WOUDC). This document is intended as a guide for data originators and clients. The WOUDC web site is the primary medium for access to data, documentation and reports related to ozone and UV studies.
GAW Report, 169. Chemical Data Assimilation for the Observation of the Earth's Atmosphere : an EU-ACCENT/WMO-GAW Expert Workshop, in Support of IGACO Implementation
World Meteorological Organization (WMO) ; Burrows J.P.; Monks Paul; et al. - WMO, 2006 (WMO/TD-No. 1360)
GAW Report, 167. The German contribution to WMO GAW programme
World Meteorological Organization (WMO) ; Umwelt Bundes Amt für Mensch und Unwelt ; Deutscher Wetterdienst (DWD) - WMO, 2006 (WMO/TD-No. 1336)
GAW Report, 162. WMO/GAW Experts Workshop on a Global Surface-Based Network for Long Term Observations of Column Aerosol Optical Properties
World Meteorological Organization (WMO) ; Barrie Leonard A.; Wehrli C. - WMO, 2005 (WMO/TD-No. 1287)
GAW Report, 155. 1st International Expert Meeting on Sources and Measurements of Natural Radionuclides Applied to Climate and Air Quality Studies
World Meteorological Organization (WMO) ; Centre National de la Recherche Scientifique (CNRS) - WMO, 2004 (WMO/TD-No. 1201)
GAW Report, 149. Comparison of total ozone measurements of Dobson and Brewer spectrophotometers and recommended transfer functions
World Meteorological Organization (WMO) ; Kerr J.; Evans Robert; et al. - WMO, 2003 (WMO/TD-No. 1147)
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Statement on the occasion of the Inauguration of the Mount Kenya GAW Station
Obasi G.O.P; World Meteorological Organization (WMO) - WMO, 2002 (SG's lectures, speeches, statements-No. 170)
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Address at the opening of the WMO Global Atmosphere Watch Station at Arembepe, Bahia, Brazil
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Statement on the occasion of the Inauguration of the Mount Kenya GAW Station
Obasi G.O.P; World Meteorological Organization (WMO) - WMO, 2000 (SG's lectures, speeches, statements-No. 111)
GAW Report, 136. WMO/EMEP/UNEP Workshop on Modelling of Atmospheric Transport and Deposition of Persistent Organic Pollutants and Heavy Metals (volume II)
United Nations Environment Programme (UNEP); World Meteorological Organization (WMO) ; Meteorological Synthesizing Centre East of EMEP - WMO, 2000 (WMO/TD-No. 1008)
GAW Report, 140. WMO/CEOS report on a strategy for integrating satellite and ground-based observations of ozone
Committee on Earth Observation Satellites (CEOS); World Meteorological Organization (WMO) - WMO, 2000 (WMO/TD-No. 1046)
GAW Report, 136. WMO/EMEP/UNEP Workshop on Modelling of Atmospheric Transport and Deposition of Persistent Organic Pollutants and Heavy Metals (volume I)
United Nations Environment Programme (UNEP); World Meteorological Organization (WMO) ; Meteorological Synthesizing Centre East of EMEP - WMO, 2000 (WMO/TD-No. 1008)
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Implementation phase terminal report: Global monitoring of Greenhouse Gases inclunding Ozone
World Meteorological Organization (WMO) ; United Nations Development Programme (UNDP); Global Environment Facility (GEF) - WMO, 2000
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