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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 ...
Fifth WMO Filter Radiometer Comparison (FRC-V) 27 September to 25 October 2021 Davos, Switzerland (GAW 280)
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World Meteorological Organization (WMO) ; Stelios Kazadzis, Natalia Kouremeti, Julian Gröbner
Published by: 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 27th to October 25th, 2021. Thirtytwo (32) filter radiometers and spectroradiometers from 12 countries participated in this campaign.
The objective of this campaign was to compare aerosol optical depth and Ångström exponents (AE) derived from different instruments belonging to different global, regional or national networks in order to quantify the main factors that are responsible for possible deviations. The aim of the whole activity was to initiate action towards homogenization of the AOD measurements on a global scale. The comparison protocol was formulated according to the WMO recommendations. Measurements of each instrument were compared to the WORCC Precision Filter Radiometer (PFR) reference triad.Collection(s) and Series: GAW Report- No. 280
Language(s): English
Format: Digital (Free)Tags: Atmospheric chemistry ; Pollution ; Global Atmosphere Watch Programme (GAW)
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GAW Report, 281. Guidelines for Measurements of Non-Methane Hydrocarbons in the Troposphere (GAW 281)
, UncertaintyExampleWMOGAWMGVOC_Excel file
Published by: WMO ; 2023
Notes: Author’s affiliation
E.C. Apel: Atmospheric Chemistry Observations & Modeling laboratory at National Center for Atmospheric Research, Boulder, Co., USA
A. Baldan: VSL National Metrology Institute, The Netherlands
A. Claude: Deutscher Wetterdienst, Germany
J. Englert: Deutscher Wetterdienst, Germany
A.-M. Fjaeraa: NILU (Norwegian Institute of Air Research)
M. Guillevic: EMPA - Swiss Federal Laboratories for Materials Science and Technology, Switzerland
D. Helmig: Institute for Arctic and Alpine Research, University of Colorado, Boulder, CO, USA, and Boulder AIR, Boulder, CO, USA
C. C Hoerger: EMPA - Swiss Federal Laboratories for Materials Science and Technology , Switzerland
J. Hopkins: Wolfson Atmospheric Chemistry Laboratory Department of Chemistry University of York, USA
A. C. Lewis: Wolfson Atmospheric Chemistry Laboratory Department of Chemistry University of York, USA
C. Plass-Duelmer: Deutscher Wetterdienst, Germany
S. Reimann: EMPA - Swiss Federal Laboratories for Materials Science and Technology, Switzerland
S. Sauvage: Département Sciences de l'Atmosphère et Génie de l'Environnement, IMT Lille Douai, Univ. Lille, France
I. J Simpson: Department of Chemistry, University of California, Irvine, CA, USA
R. Steinbrecher: Institute for Meteorology and Climate Research, Karlsruhe Institute of Technology, Garmisch-Partenkirchen, Germany.
D. Worton: National Physical Laboratory, Teddington, UKCollection(s) and Series: GAW Report- No. 281
Language(s): English
Format: Digital (Free)Tags: Atmospheric chemistry ; Pollution ; Global Atmosphere Watch Programme (GAW)
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GAW Report, 277. Global Air Quality Forecasting and Information System (GAFIS) Implementation Plan: 2022–2026
Published by: WMO ; 2022
Collection(s) and Series: GAW Report- No. 277
Language(s): English
Format: Digital (Free)Tags: Atmospheric chemistry ; Pollution ; Global Atmosphere Watch Programme (GAW)
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AGM, 111. Report of the Joint Commission on Agricultural Meteorology (CAgM)/Joint Commission on Marine Meteorology and Oceanography (JCOMM) Task Team on Weather, Climate and Fisheries (2014-2018)
This is the summary report of the Joint Task Team of the Commission on Agricultural Meteorology (CAgM)/Joint Commission on Marine Meteorology and Oceanography (JCOMM) on Weather, Climate and Fisheries that was active from 2014-2018. The report focuses on the following themes: Climate variability impacts of selected fisheries: impacts of climate change on fisheries; risk assessment and management evaluation tools for the ecosystem-approach to management of fisheries; weather and climate tools for integrated coastal management of coastal fisheries and marine agriculture; weather and climate too ...
Report of the Joint Commission on Agricultural Meteorology (CAgM)/Joint Commission on Marine Meteorology and Oceanography (JCOMM) Task Team on Weather, Climate and Fisheries (2014-2018)
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Published by: WMO ; 2022
This is the summary report of the Joint Task Team of the Commission on Agricultural Meteorology (CAgM)/Joint Commission on Marine Meteorology and Oceanography (JCOMM) on Weather, Climate and Fisheries that was active from 2014-2018. The report focuses on the following themes: Climate variability impacts of selected fisheries: impacts of climate change on fisheries; risk assessment and management evaluation tools for the ecosystem-approach to management of fisheries; weather and climate tools for integrated coastal management of coastal fisheries and marine agriculture; weather and climate tools for integrated coastal management of coastal fisheries and marine aquaculture; policy brief on climate, oceanic and fisheries information and recommendations.
Collection(s) and Series: AGM- No. 111
Language(s): English
Format: Digital (Free), Hard copyTags: Natural hazards ; Early warning systems ; Agriculture ; Drought ; Climate change ; Agricultural Meteorology Programme (AgMP)
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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
Seventh Session of the Research Board Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee
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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)
Published by: WMO ; 2022Collection(s) and Series: GAW Report- No. 273
Language(s): English
Format: Digital (Free)Tags: Atmospheric chemistry ; Pollution ; Global Atmosphere Watch Programme (GAW)
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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 ...
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GAW Report, 268. Ozonesonde Measurement Principles and Best Operational Practices : ASOPOS 2.0 (Assessment of Standard Operating Procedures for Ozonesondes) August 2021
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GAW Report, 269. Measurement-Model Fusion for Global Total Atmospheric Deposition Initiative : Implementation Plan for 2021–2026
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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 ...
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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 ...
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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 ...
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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 ...
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WMO's Boleton sobre los aerosoles No. 4 - Abril de 2021: Aerosoles procedentes de la quema de biomasa
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Bulletin de l’OMM sur les aérosols N°4 - Avril 2021 : Aérosols issus de la combustion de la biomasse
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