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Liquid Water Cloud Properties During the Polarimeter Definition Experiment (PODEX)We present retrievals of water cloud properties from the measurements made by the Research Scanning Polarimeter (RSP) during the Polarimeter Definition Experiment (PODEX) held between January 14 and February 6, 2013. The RSP was onboard the high-altitude NASA ER-2 aircraft based at NASA Dryden Aircraft Operation Facility in Palmdale, California. The retrieved cloud characteristics include cloud optical thickness, effective radius and variance of cloud droplet size distribution derived using a parameter-fitting technique, as well as the complete droplet size distribution function obtained by means of Rainbow Fourier Transform. Multi-modal size distributions are decomposed into several modes and the respective effective radii and variances are computed. The methodology used to produce the retrieval dataset is illustrated on the examples of a marine stratocumulus deck off California coast and stratus/fog over California's Central Valley. In the latter case the observed bimodal droplet size distributions were attributed to two-layer cloud structure. All retrieval data are available online from NASA GISS website.
Document ID
20150023379
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Alexandrov, Mikhail D.
(Columbia Univ. New York, NY, United States)
Cairns, Brian
(NASA Goddard Inst. for Space Studies New York, NY United States)
Wasilewski, Andrzei P.
(TRINNOVIM, LLC New York, NY, United States)
Ackerman, Andrew S.
(NASA Goddard Inst. for Space Studies New York, NY United States)
McGill, Matthew J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Yorks, John E.
(Science Systems and Applications, Inc. Lanham, MD, United States)
Hlavka, Dennis L.
(Science Systems and Applications, Inc. Lanham, MD, United States)
Platnick, Steven
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Arnold, George
(Science Systems and Applications, Inc. Lanham, MD, United States)
Van Diedenhoven, Bastiaan
(Columbia Univ. New York, NY, United States)
Chowdhary, Jacek
(Columbia Univ. New York, NY, United States)
Ottaviani, Matteo
(City Univ. of New York Brooklyn, NY, United States)
Knobelspiesse, Kirk D.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
December 18, 2015
Publication Date
August 9, 2015
Publication Information
Publication: Remote Sensing of Environment
Publisher: Elsevier
Volume: 169
Subject Category
Meteorology And Climatology
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN21360
Funding Number(s)
CONTRACT_GRANT: NNG12HP08C
CONTRACT_GRANT: NNG12HP07C
CONTRACT_GRANT: NNX14AB99A
WBS: WBS 304029.01.04.04.01
Distribution Limits
Public
Copyright
Other
Keywords
Electromagnetic scattering
Clouds
Optical particle characterization
Remote sensing
Mie theory
polarization
Rainbow

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