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Influence of the Atlantic Multidecadal and the Pacific Decadal Oscillations on Hemispheric Air Temperature and Cloud Cover

Youderian, Bria Danielle
http://rave.ohiolink.edu/etdc/view?acc_num=osu1250099376

Abstract Details

2009, Master of Science, Ohio State University, Atmospheric Sciences.
The Atlantic Multidecadal Oscillation (AMO) and the Pacific (inter) Decadal Oscillation (PDO) are evaluated as potential controls on climate change in the Northern Hemisphere. Each sea surface temperature anomaly index is correlated with near-surface air temperature over land surfaces north of the equator from 1901–2002. Additionally, a combined PDO+AMO index is constructed and analyzed. Overall results indicate that the AMO and the PDO have impacts on air temperature. A positive relationship exists between near-surface air temperatures and the AMO with the land bordering the western Atlantic and parts of northern Africa. The PDO has a strong positive effect on temperatures over the Pacific coast of North America, Sudan, and the Philippines, and Japan is negatively influenced by the PDO. Strong positive correlations occur with the PDO+AMO in Africa, Spain, northern South America, the Caribbean, Mexico, Florida, and along the Pacific coast of North America. Cloud cover is dually assessed through correlations with temperature and ocean oscillation indices. The effects of cloud cover on temperature in the Northern Hemisphere vary spatially and seasonally with strong correlations noted throughout. Much of the Northern Hemisphere exhibits positive correlations with mean temperature in winter and negative correlations in summer. Cloud cover has positive influences on minimum temperature in the western Northern Hemisphere and negative influences on maximum temperature. When cloud cover and ocean indices are assessed, few locations are found to have significant correlations.
Dr. Jeffery C. Rogers (Advisor)
Dr. Jay S. Hobgood (Committee Member)
Dr. Jialin Lin (Committee Member)
214 p.
Atmosphere
Atlantic multidecadal oscillation; Pacific decadal oscillation

Recommended Citations

Citations

  • Youderian, B. D. (2009). Influence of the Atlantic Multidecadal and the Pacific Decadal Oscillations on Hemispheric Air Temperature and Cloud Cover [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250099376

    APA Style (7th edition)

  • Youderian, Bria. Influence of the Atlantic Multidecadal and the Pacific Decadal Oscillations on Hemispheric Air Temperature and Cloud Cover. 2009. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1250099376.

    MLA Style (8th edition)

  • Youderian, Bria. "Influence of the Atlantic Multidecadal and the Pacific Decadal Oscillations on Hemispheric Air Temperature and Cloud Cover." Master's thesis, Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250099376

    Chicago Manual of Style (17th edition)

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© 2009, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.