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Intercomparison of Numerically Modeled Flux Data and Satellite-Derived Flux Data for Warm Seclusions

Title: An Intercomparison of Numerically Modeled Flux Data and Satellite-Derived Flux Data for Warm Seclusions.
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Name(s): Scott, Joel Paul, author
Bourassa, Mark A., professor directing thesis
Clayson, Carol Anne, professor co-directing thesis
Sura, Philip, 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: 2011
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
Physical Form: online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Warm seclusions are large midlatitude storms that have the potential to substantially influence the turbulent heat fluxes and global energy budget. These storms have not been previously investigated from an energy and flux perspective. They have large areas of strong surface winds and rapidly moving cold fronts, which are associated with large air-sea differences of temperature and humidity. These regions contain large air-sea fluxes of latent and sensible heat. Therefore, errors in model representation of warm seclusions may introduce significant bias and uncertainty to the energy budget. The turbulent heat fluxes associated with three specific warm seclusions in different ocean basins are examined through an intercomparison of satellite- derived flux data and numerically derived flux data. The satellite data includes the SeaFlux version 0.75 data derived from SSM/I (Special Sensor Microwave/Imager), and model-derived reanalysis data includes CFSR, ERA-Interim, MERRA, and NCEP-R2 reanalysis data sets. Latent and sensible heat fluxes are computed in a physically consistent manner though the use of a bulk flux parameterization A single warm seclusion, which typically lasts between three and seven days, is responsible for approximately one quarter of the total time-integrated monthly fluxes for the ocean basin containing the warm seclusion, depending on the storm and data set under consideration. The large area of extremely large fluxes is associated with the mature phase of the cyclone. Proper representation of these fluxes is critical to determining accurate monthly- averaged, basin-wide fluxes.
Identifier: FSU_migr_etd-1970 (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: Summer Semester, 2011.
Date of Defense: March 29, 2011.
Keywords: Satellite, Reanalysis, Air Sea Interaction, Turbulent Heat Fluxes, Intercomparison, Warm Seclusion
Bibliography Note: Includes bibliographical references.
Advisory committee: Mark A. Bourassa, Professor Directing Thesis; Carol Anne Clayson, Professor Co-Directing Thesis; Philip Sura, Committee Member.
Subject(s): Oceanography
Atmospheric sciences
Meteorology
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_migr_etd-1970
Owner Institution: FSU