NDLI: First observations of so2 from the satellite suomi npp omps: widespread air pollution events over china

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First observations of so2 from the satellite suomi npp omps: widespread air pollution events over china

Content Provider	NASA Technical Reports Server (NTRS)
Author	Yang, Kai Carn, Simon A. Ge, Cui Dickerson, Russell R. Wang, Jun
Copyright Year	2013
Description	Severe smog episodes over China in January 2013 received worldwide attention. This air pollution was distinguished by heavy loadings of fine particulate matter and SO2. To characterize these episodes, we employed the Ozone Mapping and Profiler Suite, Nadir Mapper (OMPS NM), an ultraviolet (UV) spectrometer flying on the Suomi National Polar-orbiting Partnership (SNPP) spacecraft since October 2011. We developed an advanced algorithm to quantify SO2 in the lower troposphere and achieved high-quality retrievals from OMPS NM, which are characterized by high precision, approx. 0.2 Dobson Units (DU; 1 DU = 2.69 x 10(exp 16) molecules/sq cm) for instantaneous field of view SO2 data and low biases (within +/-0.2 DU). Here we report SO2 retrievals and UV aerosol index data for these pollution events. The SO2 columns and the areas covered by high pollutant concentrations are quantified; the results reveal for the first time the full extent (an area of approx. 10(exp 6) sq km containing up to 60 kt of SO2) of these episodes.
File Size	983583
Page Count	6
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20140013038
Archival Resource Key	ark:/13960/t8z947h0x
Language	English
Publisher Date	2013-09-19
Access Restriction	Open
Subject Keyword	Sulfur Dioxide Snpp/omps Air Pollution Molecules Contaminants Smog Troposphere Ultraviolet Spectrometers Aerosols Particulates Ozone Field of View Sulfur Dioxides Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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