Retrieval of aerosol mass load (PM10) from MERIS/Envisat top of atmosphere spectral reflectance measurements over Germany
| Autor: | M. Vountas, J. P. Burrows, T. Dinter, A. Kokhanovsky, W. von Hoyningen-Huene, G. J. Rohen |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Atmospheric Measurement Techniques, Vol 4, Iss 3, Pp 523-534 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1867-1381 1867-8548 |
| DOI: | 10.5194/amt-4-523-2011 |
| Popis: | Results of a new methodology for retrievals of surface particulate matter concentration (PM10) from satellite reflectance measurements over Germany are presented in this paper. The retrieval derives effective radii from Ångström-α exponents and benefits from the fitting of a smooth spectral slope from seven MERIS spectrometer channels. Comparisons with ground measurements from the air quality surveillance show standard deviations of 33.9% with −18.9% bias over Hamburg. Over rural sites a standard deviation of 17.9% (bias 12.9%) is reached. We discuss critically limitations and potential applications of the retrieval. Additionally, we talk about the aspects at comparing of retrieved particulate matter with ground station measurements. |
| Databáze: | Directory of Open Access Journals |
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