Cloud-fraction-dependent bias in satellite liquid water path retrievals of shallow, non-precipitating marine clouds
Article first published online: 20 NOV 2007
Copyright 2007 by the American Geophysical Union.
Geophysical Research Letters
Volume 34, Issue 22, November 2007
How to Cite
2007), Cloud-fraction-dependent bias in satellite liquid water path retrievals of shallow, non-precipitating marine clouds, Geophys. Res. Lett., 34, L22806, doi:10.1029/2007GL030625., and (
- Issue published online: 20 NOV 2007
- Article first published online: 20 NOV 2007
- Manuscript Accepted: 5 OCT 2007
- Manuscript Revised: 20 SEP 2007
- Manuscript Received: 17 MAY 2007
- cloud liquid water path;
- cloud remote sensing;
- marine boundary layer clouds
 This study compares Wentz microwave liquid water path retrievals with MODIS and MISR optical estimates in shallow, non-precipitating marine clouds. In overcast conditions, the microwave and optical estimates are comparable; however, as cloud fraction decreases microwave retrievals strongly and increasingly overestimate optical ones. This positive microwave bias cannot be explained neither by the elimination of negative values in the operational Wentz dataset, nor by the somewhat reduced sensitivity of MODIS cloud detection to small clouds.