Aerosol absorption over the clear-sky oceans deduced from POLDER-1 and AERONET observations
Abstract
We estimate aerosol absorption over the clear-sky oceans using aerosol geophysical products from POLDER-1 space measurements and absorption properties from ground-based AERONET measurements. Our best estimate is 2.5 Wm-2 averaged over the 8-month lifetime of POLDER-1. Low and high absorption estimates are 2.2 and 3.1 Wm-2 based on the variability in aerosol single-scattering albedo observed by AERONET. Main sources of uncertainties are the discrimation of the aerosol type from satellite measurements, and potential clear-sky bias induced by the cloud-screening procedure.
- Publication:
-
Geophysical Research Letters
- Pub Date:
- July 2003
- DOI:
- 10.1029/2003GL017121
- Bibcode:
- 2003GeoRL..30.1748B
- Keywords:
-
- Atmospheric Composition and Structure: Aerosols and particles (0345;
- 4801);
- Global Change: Remote sensing;
- Meteorology and Atmospheric Dynamics: Radiative processes