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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
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 ...
AGM, 109. Assessment of Simple Farmer Rain Gauges Used in the WMO METAGRI OPS Project
The purpose of the various METAGRI projects in West Africa was to increase the flow of information from National Meteorological and Hydrological Services to farmers and this included the need for simple rain gauges to be distributed to farmers. The METAGRI OPERATIONAL Project needed technical specifications for the ‘farmer’s rain gauge’ to make it more suitable for the purpose. The former Commission for Instruments and Methods of Observation (CIMO) Lead Centre agreed to cooperate with the involved NMHSs in the evaluation of the rain gauges by technical consultations, laboratory tests and fiel ...
AGM, 108. Manual For Creating a Weather-based Crop Calendar : A Case Study from Senegal
Crop calendars, indicating the optimal time of planting and the time of harvest, can aid both farmers and advisory experts in the field of agriculture to reduce any risks. Existing crop calendars are made available for many countries but the planting and harvest periods are very general and can even comprise a period of two months. Defining the onset of the rainy season for the different regions and providing more detailed information about crop cultivation in relation to the length of the growing season, will help farmers reduce their losses and increase crop yield. This report describex a me ...
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 ...
Bulletin de l’OMM sur les aérosols N°4 - Avril 2021 : Aérosols issus de la combustion de la biomasse
Guidance on Integrated Urban Hydrometeorological, Climate and Environment Services - Volume II : Demonstration Cities
This Guidance Volume II: Demonstration Cities presents an overview of the demand for integrated urban services and the particular practices of the integrated urban services implementation. This Guidance builds on examples from 27 demonstration cities and provides details of the types of integrated urban services and their placement within distinct administrative frameworks. The details from these cities are abstracted to create a map that illustrates the level of integration between services providers and between services and the economic sectors. According to the degree of integration, demons ...
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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