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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.
Systematic Observations Financing Facility (SOFF): Second Funders’ Forum
This report intends to provide the basis for discussion at the Second Funders' Forum, with particular focus on: the value proposition of the Systematic Observations Financing Facility (SOFF), the proposed institutional and operational design and respective arrangements of the Facility.
Systematic Observations Financing Facility (SOFF): First Funders’ Forum
This document provides the basis for discussions at the first forum for potential funders of the Systematic Observations Financing Facility (SOFF), virtually taking place on 24 March 2021. The objective of the first forum is to present to potential funders the rationale for the establishment of SOFF; to present the current approach to the institutional design of SOFF; to summarize the process, timeline and status of preparations; to identify participants’ questions that have to be addressed; and to present the expectations for the subsequent meetings. Two additional potential Funders’ Forums a ...
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 ...
HYDROMET GAP REPORT 2021
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 ...
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 ...
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 ...
Guidelines on Ensemble Prediction System Postprocessing (WMO-No. 1254)
This guide to methods for Postprocessing of Ensemble Prediction Systems (EPS) is designed to provide an outline of different methods by which WMO Members can exploit available EPS forecasts to extract useful information and to enhance and improve forecasts using postprocessing techniques. It provides some background on what statistical methods and data choices may be used for training, real-time forecasting, and validation. It is not a detailed instruction manual on how to implement methods, or of the detailed mathematics behind methods, but wherever possible it will provide references to wher ...
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