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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
WMO Greenhouse Gas Bulletin (GHG Bulletin) - No.17: The State of Greenhouse Gases in the Atmosphere Based on Global Observations through 2020
This Bulletin represents the latest analysis of observations from the WMO GAW Programme. It shows globally averaged surface mole fractions for carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) and compares them with the mole fractions during the previous year and with the preindustrial levels. It also provides insights on the change in radiative forcing by long-lived GHGs (LLGHGs) and contribution of individual gases to this increase.
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 ...
An Update on Low-cost Sensors for the Measurement of Atmospheric Composition, December 2020
Richard E. Peltier ; Núria Castell, Andrea L Clements, Tim Dye, Christoph Hüglin, Jesse H Kroll, Shih-Chun Candice Lung, Zhi Ning, Matthew Parsons, Michele Penza, Fabienne Reisen and Erika von Schneidemesser - WMO, 2021 (WMO-No. 1215)The report reflects on the state of the art in terms of accuracy, reliability and reproducibility of different sensors used for the measurements of reactive and greenhouse gases, and aerosols, along with the key analytical principles and what has been learned so far about low-cost sensors from both laboratory studies and real-world tests (up to August 2020). In some cases, scientific literature that had been accepted, but not yet published in a final form, was included in this review. Some national and international government documents were also included in this synthesis. The report includes ...
Sea-ice Information and Services
This document contains a summarized history of sea-ice information services, as well as a description of the various types of sea ice, the ice observing methods currently being used, and the types of ice information services currently being provided. The sea-ice information services of 17 countries according to region, including information about organization, data acquisition, products and forecasts, publications and contact details, will be available soon on the WMO community website.
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 ...
WIGOS 区域中心事件管理系统原型用户手册 : (2020 年10 月，0.1 版)
This user’s manual is intended for registered users to the Incident Management System (IMS) prototype for Regional WIGOS Centres (RWCs) which is provided and configured at the European Centre for Medium-Range Weather Forecasts (ECMWF), based on JIRA software, an online tool for issue tracking. The IMS for RWCs is a project under ECMWF JIRA, designed as a global system, that is available for RWCs to perform one of their mandatory function, the WIGOS Data Quality Monitoring System (WDQMS) incident management function. The expected users of this manual include the RWCs staff, the National Focal P ...
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 ...
Руководство пользователя по прототипу системы менеджмента инцидентов для региональных центров ИГСНВ : (версия 0.1, октябрь 2020 г.)
This user’s manual is intended for registered users to the Incident Management System (IMS) prototype for Regional WIGOS Centres (RWCs) which is provided and configured at the European Centre for Medium-Range Weather Forecasts (ECMWF), based on JIRA software, an online tool for issue tracking. The IMS for RWCs is a project under ECMWF JIRA, designed as a global system, that is available for RWCs to perform one of their mandatory function, the WIGOS Data Quality Monitoring System (WDQMS) incident management function. The expected users of this manual include the RWCs staff, the National Focal P ...
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 ...
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WMO Greenhouse Gas Bulletin (GHG Bulletin)
