Periodicity and patterns of ocean wind and wave climate [electronic resource]
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| Online Access: |
Full Text (via OSTI) |
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| Format: | Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2014.
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| Subjects: |
| Abstract: | Winds and waves play a significant role in the global climate that can be examined through the proven Climate Forecast System Reanalysis (CFSR). A standard empirical orthogonal function method extracts dominant spatial patterns from time series of the reanalysis data. The results show strong zonal structures in the winds and saturation of swells across the ocean basins, but these dominant features obscure the periodicity of the climate cycles. Implementation of the Fourier transform removes non-oscillatory signals in the wind and waves for elucidation of cyclic features through the empirical orthogonal function method. A systematic analysis illustrates the dominant modes and their periodicity in the three major ocean basins. The North Atlantic dominates the variability in the entire ocean basin with a broad range of intra-seasonal signals. The Indian and Pacific are strongly influenced by inter-annual cycles of the El Niǫ Southern Oscillation and the Antarctica Oscillation. Here, these two oceans have strong components in the period of 50-90 days that have similar spatial structure to those of 2-5 years period suggesting linkage between the two frequency components. |
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| Item Description: | Published through Scitech Connect. 08/28/2014. "Journal ID: ISSN 2169-9275." Stopa, Justin E. ; Cheung, Kwok Fai ; Univ. of Hawaii at Manoa, Honolulu, HI (United States) |
| Physical Description: | Size: p. 5563-5584 : digital, PDF file. |