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| Author | Proshutinsky, A.; Dukhovskoy, D.; Timmermans, M.-L.; Krishfield, R.; Bamber, J.L. | ||||
| Title | Arctic circulation regimes | Type | $loc['typeJournal Article'] | ||
| Year | 2015 | Publication | Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences | Abbreviated Journal | Philos Trans A Math Phys Eng Sci |
| Volume | 373 | Issue | 2052 | Pages | |
| Keywords | arctic climate variability; circulation regimes; freshwater and heat content | ||||
| Abstract | Between 1948 and 1996, mean annual environmental parameters in the Arctic experienced a well-pronounced decadal variability with two basic circulation patterns: cyclonic and anticyclonic alternating at 5 to 7 year intervals. During cyclonic regimes, low sea-level atmospheric pressure (SLP) dominated over the Arctic Ocean driving sea ice and the upper ocean counterclockwise; the Arctic atmosphere was relatively warm and humid, and freshwater flux from the Arctic Ocean towards the subarctic seas was intensified. By contrast, during anticylonic circulation regimes, high SLP dominated driving sea ice and the upper ocean clockwise. Meanwhile, the atmosphere was cold and dry and the freshwater flux from the Arctic to the subarctic seas was reduced. Since 1997, however, the Arctic system has been under the influence of an anticyclonic circulation regime (17 years) with a set of environmental parameters that are atypical for this regime. We discuss a hypothesis explaining the causes and mechanisms regulating the intensity and duration of Arctic circulation regimes, and speculate how changes in freshwater fluxes from the Arctic Ocean and Greenland impact environmental conditions and interrupt their decadal variability. | ||||
| Address | School of Geographical Sciences, University of Bristol, Bristol, UK | ||||
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| Language | English | Summary Language | Original Title | ||
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| Series Volume | Series Issue | Edition | |||
| ISSN | 1364-503X | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | PMID:26347536; PMCID:PMC4607701 | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 109 | ||
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| Author | Strazzo, S | ||||
| Title | Low-Frequency Minimum Temperature Variability Throughout the Southeastern United States during the 1970s: Regime Shift or Phase Coincidence? | Type | $loc['typeManuscript'] | ||
| Year | 2011 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
| Keywords | Low-frequency variability; Climate variability; Climate regime | ||||
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| Address | Department of Earth Ocean and Atmospheric Science | ||||
| Corporate Author | Thesis | $loc['Master's thesis'] | |||
| Publisher | Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 336 | ||
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| Author | Sura, P.; Hannachi, A. | ||||
| Title | Perspectives of Non-Gaussianity in Atmospheric Synoptic and Low-Frequency Variability | Type | $loc['typeJournal Article'] | ||
| Year | 2015 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 28 | Issue | 13 | Pages | 5091-5114 |
| Keywords | Atmospheric circulation; Nonlinear dynamics; Statistics; Climate variability | ||||
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| ISSN | 0894-8755 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 114 | ||
| Permanent link to this record | |||||
| Author | Wei, J.; Dirmeyer, P.A.; Guo, Z.; Zhang, L.; Misra, V. | ||||
| Title | How Much Do Different Land Models Matter for Climate Simulation? Part I: Climatology and Variability | Type | $loc['typeJournal Article'] | ||
| Year | 2010 | Publication | Journal of Climate | Abbreviated Journal | J. Climate |
| Volume | 23 | Issue | 11 | Pages | 3120-3134 |
| Keywords | Land surface model; Climatology; Surface fluxes; Climate variability; Model comparison; Precipitation | ||||
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| ISSN | 0894-8755 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 370 | ||
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| Author | Williams, M | ||||
| Title | Characterizing Multi-Decadal Temperature Variability in the Southeastern United States | Type | $loc['typeManuscript'] | ||
| Year | 2010 | Publication | Abbreviated Journal | ||
| Volume | Issue | Pages | |||
| Keywords | Meteorology, Climate Variability, Climate, Warm Regime, Cold Regim | ||||
| Abstract | Prior studies of the long-term temperature record in the Southeastern United States (SE US) mostly discuss the long-term cooling trend, and the inter-annual variability produced by the region's strong ties to El Niño Southern Oscillation (ENSO). An examination of long-term temperature records in the SE US show clear multi-decadal variations in temperature, with relative warm periods in the 1920's through the mid 1950's and a cool period in the late 1950's through the late 1990's. This substantial shift in multi-decadal variability is not well understood and has not been fully investigated. It appears to account for the long-term downward trend in temperatures. An accurate characterization of this variability could lead to improved interannual and long-term forecasts, which would be useful for agricultural planning, drought mitigation, water management, and preparation for extreme temperature events. Statistical methods are employed to determine the spatial coherence of the observed variability on seasonal time scales. The goal of this study is to characterize the nature of this variability through the analysis of National Weather Service Cooperative Observer Program (COOP) station data in Florida, Georgia, Alabama, North Carolina, and South Carolina. One finding is a shift in the temperature Probability Distribution Function (PDF) between warm regimes and cool regimes. | ||||
| Address | Department of Earth Ocean and Atmospheric Science | ||||
| Corporate Author | Thesis | $loc['Master's thesis'] | |||
| Publisher | Florida State University | Place of Publication | Tallahassee, FL | Editor | |
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 578 | ||
| Permanent link to this record | |||||
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