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Objective Regional Cloud Mask Algorithm for GOES Infrared Imager with Regime-Dependent Thresholds for Direct Radiance Assmilation

Title: An Objective Regional Cloud Mask Algorithm for GOES Infrared Imager with Regime-Dependent Thresholds for Direct Radiance Assmilation.
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Name(s): Da, Cheng, author
Zou, Xiaolei, professor directing thesis
Liu, Guosheng, committee member
Ellingson, Robert G., committee member
Department of Earth, Ocean and Atmospheric Sciences, degree granting department
Florida State University, degree granting institution
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2014
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: A local, regime-dependent cloud mask (CM) algorithm is developed for isolating cloud-free pixels from cloudy pixels for Geostationary Operational Environmental Satellite (GOES) imager radiance assimilation using mesoscale forecast models. In this CM algorithm, thresholds for six different CM tests are determined by a one-dimensional optimization approach based on probability distribution functions of the nearby cloudy and clear-sky pixels within a 10o×10o box centered at a target pixel. It is shown that the optimized thresholds over land are in general larger and display more spatial variations than over ocean. The performance of the proposed CM algorithm is compared with Moderate Resolution Imaging Spectroradiometer (MODIS) CM for a one-week period from 19 to 23 May 2008. Based on MODIS CM results, the average Probability of Correct Typing (PCT) reaches 92.94% and 91.50% over land and ocean, respectively.
Identifier: FSU_migr_etd-8763 (IID)
Submitted Note: A Thesis submitted to the Department of Earth, Ocean, and Atmospheric Science in partial fulfillment of the requirements for the degree of Master of Science.
Degree Awarded: Spring Semester, 2014.
Date of Defense: March 20, 2014.
Keywords: Cloud Mask, Infrared Imager, Optimization, Quality Control
Bibliography Note: Includes bibliographical references.
Advisory Committee: Xiaolei Zou, Professor Directing Thesis; Guosheng Liu, Committee Member; Robert G. Ellingson, Committee Member.
Subject(s): Earth sciences
Oceanography
Atmospheric sciences
Geophysics
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_migr_etd-8763
Owner Institution: FSU

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Da, C. (2014). An Objective Regional Cloud Mask Algorithm for GOES Infrared Imager with Regime-Dependent Thresholds for Direct Radiance Assmilation. Retrieved from http://purl.flvc.org/fsu/fd/FSU_migr_etd-8763