GAW Report, 242. 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Measurement Techniques (GGMT-2017)

Crotwell Andrew; Steinbacher M.; World Meteorological Organization (WMO) - WMO, 2018

The meeting reviewed current WMO data quality objectives, reference scales and observation strategies, including calibration, quality control, data management and archiving. Target species were carbon dioxide and other greenhouse gases, stable isotopes, and radiocarbon in greenhouse gas measurements. The workshop discussed in detail the harmonization and quality control of isotope measurements, the extension of the measurement network towards more polluted and urban areas, the use of low-cost sensors, and the collaboration of the scientific greenhouse gas and carbon cycle community with the me ...

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 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Measurement Techniques (GGMT-2017)

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Andrew Crotwell ; M. Steinbacher ; World Meteorological Organization (WMO)

Event: 19th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Measurement Techniques (GGMT-2017) (27-31 August 2017; Dübendorf, Dübendorf, Switzerland)

Published by: WMO ; 2018

The meeting reviewed current WMO data quality objectives, reference scales and observation strategies, including calibration, quality control, data management and archiving. Target species were carbon dioxide and other greenhouse gases, stable isotopes, and radiocarbon in greenhouse gas measurements. The workshop discussed in detail the harmonization and quality control of isotope measurements, the extension of the measurement network towards more polluted and urban areas, the use of low-cost sensors, and the collaboration of the scientific greenhouse gas and carbon cycle community with the metrology institutes. Many of the discussions were driven by recent technological developments in instrumentations. Analytical advancements have now made possible continuous high precision measurements of many previously difficult to measure compounds. In addition, we discussed the need to calculate and report uncertainties for all measurements.
The group updated the recommendations on WMO data quality objectives, calibration, and data management, as well as on the development of the GAW Programme in general. These recommendations are summarized in this meeting report.

Collection(s) and Series: Technical publications GAW Report- No. 242

Language(s): English

Format: Digital (Free)

Tags: Carbon dioxide (CO2) ; Greenhouse gas (GHG) ; Measure ; Global Atmosphere Watch Programme (GAW) Add tag

Previous editions

 18th WMO/IAEA Meeting on Carbon Dioxide, Other Greenhouse Gases and Related Tracers Measurement Techniques (GGMT-2015) (2016)

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GAW Report, 195. WMO/GAW Expert Workshop on Global Long-term Measurements of Nitrogen Oxides and Recommendations for GAW Nitrogen Oxides Network

World Meteorological Organization (WMO) ; Gilge S.; Plass-Duelmer C.; et al. - WMO, 2011 (WMO/TD-No. 1570)

Nitrogen oxides are a component of a group of reactive gases required to be measured in the GAW Programme. The reactive gases group focuses on gases known to be intimately involved in various aspects of the chemistry of the troposphere and includes surface ozone (O3), carbon monoxide (CO), volatile organic compounds (VOCs), and sulphur dioxide (SO2), as well as oxidized nitrogen species. The sum of nitric oxide (NO) and nitrogen dioxide (NO2) has traditionally been called NOx. The sum of oxidized nitrogen species with an oxidation number >1, both organic and inorganic, is referred to as ...

English

 WMO/GAW Expert Workshop on Global Long-term Measurements of Nitrogen Oxides and Recommendations for GAW Nitrogen Oxides Network

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World Meteorological Organization (WMO) ; S. Gilge ; C. Plass-Duelmer ; I. Galbally ; N. Brough ; J. Bottenheim ; F. Flocke ; H. Gerwig ; J. Lee ; M. Milton ; F. Rohrer ; T.B. Ryerson ; M. Steinbacher ; K. Torseth ; R. Wielgosz ; Kazuto Suda ; H. Akimoto ; Oksana Tarasova

Event: WMO/GAW Expert Workshop on Global Long-term Measurements of Nitrogen Oxides and Recommendations for GAW Nitrogen Oxides Network (8-9 October 2009; Hohenpeissenberg, Germany)

Published by: WMO ; 2011

Nitrogen oxides are a component of a group of reactive gases required to be measured in the GAW Programme. The reactive gases group focuses on gases known to be intimately involved in various aspects of the chemistry of the troposphere and includes surface ozone (O3), carbon monoxide (CO), volatile organic compounds (VOCs), and sulphur dioxide (SO2), as well as oxidized nitrogen species. The sum of nitric oxide (NO) and nitrogen dioxide (NO2) has traditionally been called NOx. The sum of oxidized nitrogen species with an oxidation number >1, both organic and inorganic, is referred to as NOy (see Table 1 for individual molecules) (Fahey et al.,1985). Nitrous oxide (N2O) is obviously an oxide of nitrogen but it is not dealt with in this report because it is inert in the troposphere. It is measured separately by another component in the GAW Programme because of its role as a greenhouse gas.
The focus of this report is on NO and NO2 mostly because their measurements are presently more extensive and it is thus easier to establish high quality measurements with a fully implemented quality assurance system. Measurements of total NOy are presently undertaken in the GAW framework but the measurement quality control and calibration methodology is deemed not mature enough at present to recommend the inclusion of total NOy measurements for GAW.

Collection(s) and Series: WMO/TD- No. 1570; GAW Report- No. 195

Language(s): English

Format: Digital (Free) (ill., charts, maps)

Tags: Observations ; Reactive Gases ; Nitrous oxide (N2O) ; Measure ; Global Atmosphere Watch Programme (GAW) ; GAW 195 Add tag

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