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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
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
English
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
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
Permanent link to this record
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
Abstract
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
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
336
Permanent link to this record
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
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
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
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0894-8755
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
370
Permanent link to this record
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
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
578
Permanent link to this record