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DOI: 10.5445/IR/1000085521
Veröffentlicht am 27.08.2018
DOI: 10.3390/rs10091353

An Analysis of Factors Influencing the Relationship between Satellite-Derived AOD and Ground-Level PM10

Stirnberg, Roland; Cermak, Jan; Andersen, Hendrik

Air pollution can endanger human health, especially in urban areas. Assessment of air quality primarily relies on ground-based measurements, but these provide only limited information on the spatial distribution of pollutants. In recent years, satellite derived Aerosol Optical Depth (AOD) has been used to approximate particulate matter (PM) with varying success. In this study, the relationship between hourly mean concentrations of particulate matter with a diameter of 10 micrometers or less (PM10) and instantaneous AOD measurements is investigated for Berlin, Germany, for 2001–2015. It is found that the relationship between AOD and PM10 is rarely linear and strongly influenced by ambient relative humidity (RH), boundary layer height (BLH), wind direction and wind speed. Generally, when a moderately dry atmosphere (30% < RH ≤ 50%) coincides with a medium BLH (600–1200 m), AOD and PM10 are in the same range on a semi-quantitative scale. AOD increases with ambient RH, leading to an overestimation of the dry particle concentration near ground. However, this effect can be compensated if a low boundary layer (<600 m) is present, whi ... mehr

Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Institut für Photogrammetrie und Fernerkundung (IPF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 2072-4292
URN: urn:nbn:de:swb:90-855219
KITopen ID: 1000085521
Erschienen in Remote sensing
Band 10
Heft 9
Seiten Art.-Nr.: 1353/1-17
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 25.08.2018
Schlagworte Aerosol Optical Depth; PM10; MAIAC; MODIS; air quality; boundary layer height; ambient relative humidity
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