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First simultaneous space measurements of atmospheric pollutants in the boundary layer from IASI: A case study in the North China Plain
- Source :
- Geophysical Research Letters. 41:645-651
- Publication Year :
- 2014
- Publisher :
- American Geophysical Union (AGU), 2014.
-
Abstract
- In this paper we investigate a severe pollution episode that occurred in Beijing, Tianjin, and the Hebei province in January 2013. The episode was caused by the combination of anthropogenic emissions and a high-pressure system that trapped pollutants in the boundary layer. Using IASI (Infrared Atmospheric Sounding Interferometer) satellite measurements, high concentrations of key trace gases such as carbon monoxide (CO), sulfur dioxide (SO2), and ammonia (NH3) along with ammonium sulfate aerosol ((NH4)2SO4) are found. We show that IASI is able to detect boundary layer pollution in case of large negative thermal contrast combined with high levels of pollution. Our findings demonstrate that anthropogenic key pollutants, such as CO and SO2, can be monitored by IASI in the North China Plain during wintertime in support of air quality evaluation and management.
- Subjects :
- Pollutant
Pollution
Ammonium sulfate
010504 meteorology & atmospheric sciences
media_common.quotation_subject
010501 environmental sciences
Infrared atmospheric sounding interferometer
Atmospheric sciences
01 natural sciences
Aerosol
Trace gas
Boundary layer
chemistry.chemical_compound
Geophysics
chemistry
13. Climate action
General Earth and Planetary Sciences
Environmental science
Air quality index
0105 earth and related environmental sciences
media_common
Subjects
Details
- ISSN :
- 00948276
- Volume :
- 41
- Database :
- OpenAIRE
- Journal :
- Geophysical Research Letters
- Accession number :
- edsair.doi...........af1edad95ecd21f13d1ad641312600c5