Programmes publications
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AGM, 110. Commission on Agricultural Meteorology (CAgM) - Expert Team 3.1 ‐ Report on Drought (2014‐2018)
This report is the output from the Commission for Agricultural Meteorology (CAgM) Expert Team on Drought (Expert Team 3.1) from 2014 to 2018. The team members addressed several Terms of Reference (TOR) requested by the 16th Session of the WMO CAgM held in Antalya, Turkey in April 2014. These TORs included the following: (a) Review the definition of drought and conduct a comprehensive review of the definitions and phases of drought (onset, duration, recovery and the ‘end point’ of drought in all regions); (b) Identify case studies and conduct a literature review of the socio‐economic impacts ...
Country_Hydromet_Diagnostics
The Country Hydromet Diagnostics responds to the need for a standardized, integrated and operational tool and approach for diagnosing National Meteorological Services, their operating environment, and their contribution to high-quality weather, climate, hydrological and environmental information services and warnings. The Diagnostics is an umbrella tool that draws on and adds value to existing WMO assessment material by synthesizing existing approaches and data into an easily interpretable form, validating the information provided by WMO Members through a peer review process, and obtaining mis ...
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 ...
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, 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 ...
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, 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, 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 ...
GCOS, 236. GCOS Steering Committe Twenty-eighth Session (GCOS SC-28)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2021
GCOS, 237. Report of the Twelfth GCOS Reference Upper Air Network Implementation Coordination Meeting (GRUAN ICM-12)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2021
GCOS, 238. GCOS Joint Panels Meeting (AOPC-26, OOPC-24 and TOPC-23)
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2021
GCOS, 239. The Global Climate Observing System 2021: Executive Summary
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2021
GCOS, 239. حالة النظام العالمي لرصد المناخ لعام 2021 : ملخص تنفيذي
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2021
GCOS, 239. 全球气候观测系统现状报告（2021）: 执行摘要
World Meteorological Organization (WMO) ; United Nations Educational, Scientific and Cultural Organization (UNESCO); Intergovernmental Oceanographic Commission (IOC); et al. - WMO, 2021
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