Please use this identifier to cite or link to this item: 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 AntonioPedrós, RobertoFlamant, CyrilleUtrillas, María P.Tena, FernandoMoreno, JoséPelon, JacquesCisneros Sanchiz, Juan MaríaAutor AEMETGonzález Frías, Carlos
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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