Name
Title | ||
|---|---|---|
The Effects of Scattering Angle and Cumulus Cloud Geometry on Satellite Retrievals of Cloud Droplet Effective Radius |
Abstract | ||
|---|---|---|
The effect of scattering angle on Moderate Resolution Imaging Spectroradiometer (MODIS) retrievals of cloud drop effective radius is studied using ensembles of cumulus clouds with varying sun-satellite scattering geometries. The results are interpreted as shadowing and illumination effects. When 3-D clouds are viewed near the backscatter geometry, well-illuminated cloud surfaces are seen, and the retrievals based on plane-parallel geometry underestimate the effective radius. The reverse is true when the satellite is far from the backscatter position, and the shadowed portions of clouds are observed. The shadowing geom- etry produces a larger bias than the illuminated geometry. These differences between the shadowed and the illuminated ensembles decrease toward zero as the clouds become shallower. Removing the edge pixels based on 1-km-scale geometry partially reduces biases due to the 3-D effects and surface contamination. Recom- mendations are provided for reducing the 3-D cloud effects using current satellite retrieval algorithms. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1109/TGRS.2006.890416 | IEEE T. Geoscience and Remote Sensing |
Keywords | Field | DocType |
atmospheric optics,atmospheric techniques,clouds,radiometry,remote sensing,3D cloud effect,MODIS,cloud droplet effective radius,cumulus cloud geometry,illumination effect,moderate resolution imaging spectroradiometer,satellite retrieval algorithm,scattering angle,shadowing effect,sun-satellite scattering geometry,surface contamination,Clouds,remote sensing,terrestrial atmosphere | Atmospheric optics,Satellite,Moderate-resolution imaging spectroradiometer,Backscatter,Remote sensing,Scattering,Effective radius,Cloud fraction,Geometry,Drop (liquid),Mathematics | Journal |
Volume | Issue | ISSN |
45 | 4 | 0196-2892 |
Citations | PageRank | References |
0 | 0.34 | 3 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Brian Vant-Hull | 1 | 0 | 0.34 |
| Alexander Marshak | 2 | 7 | 2.16 |
| Lorraine A. Remer | 3 | 162 | 48.02 |
| Zhanqing Li | 4 | 35 | 13.98 |