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Climatology and Variability of Eighteen Degree Water Potential Vorticity Forcing

Title: The Climatology and Variability of Eighteen Degree Water Potential Vorticity Forcing.
Name(s): Olsina, Otmar, author
Dewar, William, professor directing thesis
Speer, Kevin, committee member
Chanton, Jeff, 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: 2009
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The input of potential vorticity (PV) over the Oceans is estimated from observations to produce a climatological map of PV flux and to study the interannual forcing variability. Particular attention is paid to the North Atlantic subtropical mode water potential temperature range from 17 to 19 ºC. The sea surface PV flux is estimated through buoyancy and wind stress contributions and using a climatological mixed layer depth product. Wind forcing of PV is found to be weak. A major observational subtropical mode water program named CLIMODE was conducted during the winters of 2004 to 2006. These years appear to be slightly stronger in their forcing than climatology, although the difference is comparable to the uncertainty. Attempts are made to relate the fluctuations to the NAO, a major mode of North Atlantic atmospheric variability, showing that there is a strong correlation between March values of the NAO and the PV fluctuation
Identifier: FSU_migr_etd-2286 (IID)
Submitted Note: A Thesis Submitted to the Department of Oceanography in Partial Fulfillment of the Requirements for the Degree of Master of Science.
Degree Awarded: Summer Semester, 2009.
Date of Defense: April 15, 2008.
Bibliography Note: Includes bibliographical references.
Advisory Committee: William Dewar, Professor Directing Thesis; Kevin Speer, Committee Member; Jeff Chanton, Committee Member.
Subject(s): Oceanography
Persistent Link to This Record:
Owner Institution: FSU

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Olsina, O. (2009). The Climatology and Variability of Eighteen Degree Water Potential Vorticity Forcing. Retrieved from