Atmosphere 2013, 4(1), 48-71; doi:10.3390/atmos4010048
Article

Characterizing a New Surface-Based Shortwave Cloud Retrieval Technique, Based on Transmitted Radiance for Soil and Vegetated Surface Types

1 Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, 3665 Discovery Drive, Boulder, CO 80305, USA 2 Department of Atmospheric and Oceanic Science, University of Colorado Boulder, 311 UCB, Boulder, CO 80309, USA 3 NASA Goddard Space Flight Center, Mail Code 613, Greenbelt, MD 20771, USA 4 Atlantic Oceanographic and Meteorological Laboratory, NOAA, 4301 Rickenbacker Causeway, Miami, FL 33149, USA
* Author to whom correspondence should be addressed.
Received: 19 December 2012; in revised form: 7 March 2013 / Accepted: 13 March 2013 / Published: 19 March 2013
PDF Full-text Download PDF Full-Text [1279 KB, uploaded 19 March 2013 15:49 CET]
Abstract: This paper presents an approach using the GEneralized Nonlinear Retrieval Analysis (GENRA) tool and general inverse theory diagnostics including the maximum likelihood solution and the Shannon information content to investigate the performance of a new spectral technique for the retrieval of cloud optical properties from surface based transmittance measurements. The cumulative retrieval information over broad ranges in cloud optical thickness (τ), droplet effective radius (re), and overhead sun angles is quantified under two conditions known to impact transmitted radiation; the variability in land surface albedo and atmospheric water vapor content. Our conclusions are: (1) the retrieved cloud properties are more sensitive to the natural variability in land surface albedo than to water vapor content; (2) the new spectral technique is more accurate (but still imprecise) than a standard approach, in particular for τ between 5 and 60 and re less than approximately 20 μm; and (3) the retrieved cloud properties are dependent on sun angle for clouds of  from 5 to 10 and re < 10 μm, with maximum sensitivity obtained for an overhead sun.
Keywords: radiation: transmission and scattering; remote sensing; clouds and aerosols; Shannon information content

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Coddington, O.; Pilewskie, P.; Schmidt, K.S.; McBride, P.J.; Vukicevic, T. Characterizing a New Surface-Based Shortwave Cloud Retrieval Technique, Based on Transmitted Radiance for Soil and Vegetated Surface Types. Atmosphere 2013, 4, 48-71.

AMA Style

Coddington O, Pilewskie P, Schmidt KS, McBride PJ, Vukicevic T. Characterizing a New Surface-Based Shortwave Cloud Retrieval Technique, Based on Transmitted Radiance for Soil and Vegetated Surface Types. Atmosphere. 2013; 4(1):48-71.

Chicago/Turabian Style

Coddington, Odele; Pilewskie, Peter; Schmidt, K. S.; McBride, Patrick J.; Vukicevic, Tomislava. 2013. "Characterizing a New Surface-Based Shortwave Cloud Retrieval Technique, Based on Transmitted Radiance for Soil and Vegetated Surface Types." Atmosphere 4, no. 1: 48-71.

Atmosphere EISSN 2073-4433 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert