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Analysis of Climate Feedback Contributions to the Land/Sea Warming Contrast

Title: An Analysis of Climate Feedback Contributions to the Land/Sea Warming Contrast.
Name(s): Albert, Oriene S., author
Cai, Ming, professor directing thesis
Sura, Phillip, committee member
Liu, Guosheng, 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: The land/sea warming contrast being greater than unity is a well-known phenomenon in response to anthropogenic radiative forcing. The land/sea surface warming asymmetry is essentially a result of the differing surface and boundary layer properties over the land and ocean as well as the differing cloud feedbacks. In this study, we analyze the surface temperature response over the land and ocean, using the NCAR CCSM4, to a transient 1% yr-1 CO2 increase at the time of the doubling. The contributions of the external forcing (CO2) alone and various feedbacks are diagnosed using the Climate Feedback Response Analysis Method (CFRAM). This study found that the external forcing warms the land and ocean surfaces approximately the same, which suggests that the feedbacks are responsible for the warming contrast. Furthermore, this analysis confirms that the principal contributor to the above-unity land-to-sea warming ratio is the evaporation feedback; however, the results also indicate that the sensible heat flux feedback, which favors a greater warming for the ocean, has the largest land/sea warming difference. Consequently, the findings uniquely highlight the importance of other feedbacks in establishing the above-unity land-to-sea warming ratio. Specifically, the cloud and ocean dynamics/heat storage feedbacks are key contributors to the maintenance of the land/sea warming asymmetry. The results of this study provide a more holistic understanding of the climate feedbacks and their significance to the land and ocean temperature responses, when the climate is forced.
Identifier: FSU_migr_etd-8929 (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, 2014.
Date of Defense: April 25, 2014.
Keywords: Climate Change, Climate Feedbacks, Global Warming
Bibliography Note: Includes bibliographical references.
Advisory Committee: Ming Cai, Professor Directing Thesis; Phillip Sura, Committee Member; Guosheng Liu, Committee Member.
Subject(s): Earth sciences
Atmospheric sciences
Persistent Link to This Record:
Owner Institution: FSU

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Albert, O. S. (2014). An Analysis of Climate Feedback Contributions to the Land/Sea Warming Contrast. Retrieved from