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GAW Report, 244. Report of the 2017 Global Atmosphere Watch Symposium and Fourth Session of the CAS Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee (EPAC SSC)
Report of the 2017 Global Atmosphere Watch Symposium and Fourth Session of the CAS Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee (EPAC SSC)
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Published by: WMO ; 2019
Collection(s) and Series: GAW Report- No. 244
Language(s): English
Format: Digital (Free)Tags: Environment and landscape ; Air pollution ; Atmospheric chemistry ; Global Atmosphere Watch Programme (GAW)
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GAW Report, 239. Calibration Methods of GC-μECD for Atmospheric SF6 Measurements
SF6 is a substance which originates only from anthropogenic sources used primarily in the electricity and electronics supply industries, e.g. the semiconductor industry, where it is used as an electronic insulator due to its inertness. SF6 is a trace gas that exists in small quantities at the level of ppt (parts-per-trillion, 1/1012) in the atmosphere, but its global warming potential is 23,500 times greater than that of CO2 when compared over a 100-year period[1]. In particular, SF6 has an atmospheric lifetime of 3,200 years upon emission, and will eventually exacerbate the man-made greenhous ...
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Available online: Full text
World Meteorological Organization (WMO) ; Korea Meteorological Administration (South Korea)
Published by: WMO ; 2018SF6 is a substance which originates only from anthropogenic sources used primarily in the electricity and electronics supply industries, e.g. the semiconductor industry, where it is used as an electronic insulator due to its inertness. SF6 is a trace gas that exists in small quantities at the level of ppt (parts-per-trillion, 1/1012) in the atmosphere, but its global warming potential is 23,500 times greater than that of CO2 when compared over a 100-year period[1]. In particular, SF6 has an atmospheric lifetime of 3,200 years upon emission, and will eventually exacerbate the man-made greenhouse effect in the long term due to its higher radiative forcing, with greater significance in the future rather than in the present. Therefore, the measurement data of SF6 will carry significant importance as basic materials for future discussions on climate change. Since SF6 is a greenhouse gas that exists in trace quantities at 5-15 ppt in the atmosphere, measurement of the gas requires a very precise procedure. This document provides guidelines on how to produce more accurate and precise values in continuous atmospheric SF6 measurements, as well as the discrete sample analysis after collecting the air, preparation of standard gases for laboratory applications, and intercomparison experiments. These guidelines are also helpful to prepare the working standards, which have traceability to laboratory standards considering the scale propagation errors. In this guideline document, WMO scale (NOAA-X2014) is used for the calibrations. The instrument setup and analysis methods refer to WMO (2015)[2].
Collection(s) and Series: GAW Report- No. 239
Language(s): English
Format: Digital (Free)Tags: Sulfur hexafluoride (SF6) ; Air pollution ; Measure
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GAW Report, 235. Vegetation Fire and Smoke Pollution Warning and Advisory System (VFSP-WAS): Concept Note and Expert Recommendations
World Meteorological Organization (WMO) ; IBBI ; The Global Fire Monitoring Center (GFMC) - WMO, 2018This concept note contains the expert recommendations resulting from discussions at the international workshop on Forecasting Emissions from Vegetation Fires and their Impacts on Human Health and Security in South-East Asia, which was hosted by the Indonesian Agency for Meteorology, Climatology and Geophysics (BMKG), Jakarta, from 29 August to 1 September 2016. The workshop was organized by the World Meteorological Organization (WMO) and the Interdisciplinary Biomass Burning Initiative (IBBI) in collaboration with the United Nations Office for Disaster Reduction/International Wildfire Prepared ...Vegetation Fire and Smoke Pollution Warning and Advisory System (VFSP-WAS): Concept Note and Expert Recommendations
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Available online: Full text
World Meteorological Organization (WMO) ; IBBI ; The Global Fire Monitoring Center (GFMC)
Published by: WMO ; 2018This concept note contains the expert recommendations resulting from discussions at the international workshop on Forecasting Emissions from Vegetation Fires and their Impacts on Human Health and Security in South-East Asia, which was hosted by the Indonesian Agency for Meteorology, Climatology and Geophysics (BMKG), Jakarta, from 29 August to 1 September 2016. The workshop was organized by the World Meteorological Organization (WMO) and the Interdisciplinary Biomass Burning Initiative (IBBI) in collaboration with the United Nations Office for Disaster Reduction/International Wildfire Preparedness Mechanism (UNISDR/IWPM), United Nations University (UNU), Global Wildland Fire Network (GWFN) through the Global Fire Monitoring Center (GFMC), Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH, and the International Global Atmospheric Chemistry (IGAC) Project. Arising from the keen interest of WMO Members in several impacted regions, the note provides guidance for addressing the issues of vegetation fire and smoke pollution. It also proposes the establishment of a Vegetation Fire and Smoke Pollution Warning and Advisory System (VFSP-WAS) and to support the potential foundation of regional centers on the topic. Although most of the examples described here focus on the South-East Asian region, the concepts remain applicable to other regions (e.g. for Africa, Latin America, Northern Asia). “South-East Asia” as referred to in this note includes WMO Members from both Regional Associations II and V (Asia and South-West Pacific).
Collection(s) and Series: GAW Report- No. 235
Language(s): English
Format: Digital (Free)Tags: Air pollution ; Global Atmosphere Watch Programme (GAW)
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GAW Report, 233. Report of the Third Session of the CAS Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee (EPAC SSC)
Report of the Third Session of the CAS Environmental Pollution and Atmospheric Chemistry Scientific Steering Committee (EPAC SSC)
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Available online: Full text
Published by: WMO ; 2018
Collection(s) and Series: GAW Report- No. 233
Language(s): English
Format: Digital (Free)Tags: Environment and landscape ; Air pollution ; Atmospheric chemistry ; Global Atmosphere Watch Programme (GAW)
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Advances in Space-Based Nighttime Visible Observation, 2nd Edition
This updated one-hour lesson explores the types of atmospheric and surface features that can be observed at night. It describes recent technical improvements in nighttime visible imaging with the VIIRS Day/Night Band on board the Suomi NPP and JPSS satellites, and the lunar phases and other conditions necessary for effective nighttime visible imaging. This lays the foundation for the rest of the lesson, which explores operational uses of nighttime visible observations. These include the detection and monitoring of city lights, tropical cyclones, fog and stratus, polar nights, auroras, fires an ...
Available online: https://www.meted.ucar.edu/training_module.php?id=1327
Published by: The University Corporation for Atmospheric Research ; 2017
This updated one-hour lesson explores the types of atmospheric and surface features that can be observed at night. It describes recent technical improvements in nighttime visible imaging with the VIIRS Day/Night Band on board the Suomi NPP and JPSS satellites, and the lunar phases and other conditions necessary for effective nighttime visible imaging. This lays the foundation for the rest of the lesson, which explores operational uses of nighttime visible observations. These include the detection and monitoring of city lights, tropical cyclones, fog and stratus, polar nights, auroras, fires and smoke, volcanic eruptions, dust storms, air pollution, moon glint, lightning, gas flares, ships and boats, and population/economic geography. The lesson is intended for weather forecasters and other environmental scientists who use nighttime environmental data. Other users, such as those in the transportation industry and economists, may benefit from it as well.
Disclaimer regarding 3rd party resources: WMO endeavours to ensure, but cannot and does not guarantee the accuracy, accessibility, integrity and timeliness of the information available on its website. WMO may make changes to the content of this website at any time without notice.
The responsibility for opinions expressed in articles, publications, studies and other contributions rests solely with their authors, and their posting on this website does not constitute an endorsement by WMO of the opinion expressed therein.
WMO shall not be liable for any damages incurred as a result of the use of its website. Please do not misuse our website.Language(s): English
Format: Digital (Standard Copyright)Tags: Air pollution ; Weather forecasting ; Aurora ; Fog ; Lesson/ Tutorial ; Arctic ; Satellite Skills and Knowledge for Operational Meteorologists
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GAW Report, 234. Global Atmosphere Watch Workshop on Measurement-Model Fusion for Global Total Atmospheric Deposition (MMF-GTAD)
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GAW Report, 227. WMO/GAW Aerosol Measurement Procedures, Guidelines and Recommendations
It is the goal of the Global Atmosphere Watch (GAW) programme to ensure long - term measurements in order to detect trends in global distributions of chemical constituents in air and the reasons for them (WMO, 2001a). With respect to aerosols, the objective of GAW is to determine the spatio - temporal distribution of aerosol properties related to climate forcing and air quality on multi - decadal time scales and on regional, hemispheric and global spatial scales. The objective of GAW Report No. 153, published in 2003, was to provide a synthesis of methodologies and procedures for measuring the ...Permalink![]()
SatFC-G: Near-IR Bands
This lesson introduces you to three of the four near-infrared imager bands (at 1.37, 1.6, and 2.2 micrometers) on the GOES R-U ABI (Advanced Baseline Imager), focusing on their spectral characteristics and how they affect what each band observes. For information on the 0.86 micrometer near-IR "veggie" band which is not included here, refer to the Visible and Near-IR Bands lesson. This lesson is a part of the NWS Satellite Foundation GOES-R Course.Permalink![]()
SatFC-G: IR Bands, Excluding Water Vapor
This lesson introduces seven of the ten infrared imager bands on the GOES R-U ABI (Advanced Baseline Imager). It examines the spectral characteristics of each band to facilitate a better understanding of band selection and what each band observes, and to shed light on some of the many potential applications. This lesson is a part of the NWS Satellite Foundation GOES-R Course.Permalink![]()
SatFC-G: Visible and Near-IR Bands
This lesson introduces you to the two visible and one of the near-infrared imager bands on the GOES R-U ABI (Advanced Baseline Imager), focusing on their spectral characteristics and how they affect what each band observes. Also included is a brief discussion of the customization of visible enhancements as an important consideration for improving the depiction of various features of interest. This lesson is a part of the NWS Satellite Foundation GOES-R Course.Permalink![]()
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SDS-WAS, 2016-001. Interannual variability and decadal trends in mineral dust aerosol : technical report
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Analysis of aerosol optical depth (AOD) retrieved from light detection and ranging (LIDAR) and sunphotometer measurements
Aerosols are small, micrometer-sized particles, whose optical effects coupled with their impact on cloud properties is a source of large uncertainty in climate models. Aerosols when inhaled are believed to have significant and detrimental effects on human health. Their presence also affects photosynthesis and agricultural production. Aerosol measurements are urgently required for the complete understanding and modeling their role in the climate system. This study builds on the analysis of Aerosol Optical depth (AOD) using Light Detection and Ranging (LIDAR) and sun photometer measurements then ...Permalink