Determining Cloud Thermodynamic Phase from the Polarized Micro Pulse Lidar

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dc.contributor.authorLewis, Jasper R.
dc.contributor.authorCampbell, James R.
dc.contributor.authorLolli, Simone
dc.contributor.authorStewart, Sebastian A.
dc.contributor.authorTan, Ivy
dc.contributor.authorWelton, Ellsworth J.
dc.date.accessioned2020-09-24T18:31:41Z
dc.date.available2020-09-24T18:31:41Z
dc.date.issued2020-08-18
dc.description.abstractA method to distinguish cloud thermodynamic phase from polarized Micro Pulse Lidar (MPL) measurements is described. The method employs a simple enumerative approach to classify cloud layers as either liquid water, ice water, or mixed-phase clouds based on the linear volume depolarization ratio and cloud top temperatures derived from Goddard Earth Observing System, version 5 (GEOS-5) assimilated data. Two years of cloud retrievals from the Micro Pulse Lidar Network (MPLNET) site in Greenbelt, MD are used to evaluate the performance of the algorithm. The fraction of supercooled liquid water in the mixed-phase temperature regime (−37 °C–0 °C) calculated using MPLNET data is compared to similar calculations made using the spaceborne Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) instrument on board the Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite, with reasonable consistency.en_US
dc.description.sponsorshipThe NASA Micro Pulse Lidar Network is funded by the NASA Earth Observing System and the NASA Radiation Sciences Program. The GEOS-5 meteorological data were provided by the NASA Global Modeling and Assimilation Office (GMAO) at GSFC. CALIPSO data were obtained from the NASA Langley Research Center Atmospheric Science Data Center.en_US
dc.description.urihttps://amt.copernicus.org/preprints/amt-2020-298/en_US
dc.format.extent24 pagesen_US
dc.genreconference proceeding preprintsen_US
dc.identifierdoi:10.13016/m2geks-utun
dc.identifier.citationLewis, J. R., Campbell, J. R., Lolli, S., Stewart, S. A., Tan, I., and Welton, E. J.: Determining Cloud Thermodynamic Phase from the Polarized Micro Pulse Lidar, Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2020-298, in review, 2020.en_US
dc.identifier.urihttps://doi.org/10.5194/amt-2020-298
dc.identifier.urihttp://hdl.handle.net/11603/19712
dc.language.isoen_USen_US
dc.publisherCopernicus Publicationsen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Student Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleDetermining Cloud Thermodynamic Phase from the Polarized Micro Pulse Lidaren_US
dc.typeTexten_US

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