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http://hdl.handle.net/20.500.11765/11652
A multi-instrument approach for characterizing the atmospheric aerosol optical thickness during the STAAARTE/DAISEX-99 campaign
Title: | A multi-instrument approach for characterizing the atmospheric aerosol optical thickness during the STAAARTE/DAISEX-99 campaign |
Authors: | Martínez Lozano, José Antonio; Pedrós, Roberto; Flamant, Cyrille; Utrillas, María Pilar; Tena Sangüesa, Fernando; Moreno, José; Pelon, Jacques; Cisneros Sanchiz, Juan María![]() |
Keywords: | Atmospheric aerosol; Aerosol optical thickness; Spectrometer |
Issue Date: | 2002 |
Publisher: | American Geophysical Union |
Citation: | Geophysical Research Letters. 2002, 29(4) |
Publisher version: | https:/dx./doi.org/10.1029/2001GL013585 |
Abstract: | This work deals with the retrieval of the aerosol optical thickness (AOT) needed to carry out the atmospheric correction of remote sensing data measured in Barrax (Spain) on 4 June 1999 in the framework of 1999 Digital Airbone Imaging Spectrometer Experiment (DAISEX'99). The AOT was estimated through three approaches based on: spectral extinction of direct solar irradiance at ground level, airborne nephelometer measurements at different altitudes, and backscatter lidar in the lower troposphere. We found extremely low AOT values due to a cold Atlantic front that swept across the Iberian Peninsula from west to east producing light rain over the test area on 2 June 1999. The results were solar irradiance extinction: 0.085±0.018; nephelometer: 0.063±0.020; lidar: 0.083±0.030. Nephelometer‐ and lidar‐derived values account for both extinction and absorption, assuming a single scattering albedo value of 0.90. Errors values include measurements and retrieval uncertainties as well as statistical variability. |
Sponsorship : | This work was supported by the European Space Agency (ESA) through the Observation Preparatory Program and the European Commission through STAAARTE Program. |
URI: | http://hdl.handle.net/20.500.11765/11652 |
ISSN: | 0094-8276 1944-8007 |
Appears in Collections: | Artículos científicos 2000-2004 |
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