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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 |
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| 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 |
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| 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 |
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| Persistent Link to This Record: | http://purl.flvc.org/fsu/fd/FSU_migr_etd-8763 | |
| Owner Institution: | FSU |
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
