TITLE

Mechanism of Interannual to Decadal Variability of the North Atlantic Circulation

AUTHOR(S)
Eden, Carsten; Willebrand, Jurgen
PUB. DATE
May 2001
SOURCE
Journal of Climate;5/15/2001, Vol. 14 Issue 10, p2266
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A model of the Atlantic Ocean was forced with decadal-scale time series of surface fluxes taken from the National Centers for Environmental Prediction-National Center for Atmospheric Research reanalysis. The bulk of the variability of the oceanic circulation is found to be related to the North Atlantic oscillation (NAO). Both realistic experiments and idealized sensitivity studies with the model show a fast (intraseasonal timescale) barotropic response and a delayed (timescale about 6–8 yr) baroclinic oceanic response to the NAO. The fast response to a high NAO constitutes a barotropic anticyclonic circulation anomaly near the subpolar front with a substantial decrease of the northward heat transport and an increase of northward heat transport in the subtropics due to changes in Ekman transport. The delayed response is an increase in subpolar heat transport due to enhanced meridional overturning and due to a spinup of the subpolar gyre. The corresponding subpolar and subtropical heat content changes could in principle act as an immediate positive feedback and a delayed negative feedback to the NAO.
ACCESSION #
5498643

 

Related Articles

  • Impacts of two types of El Niño on atmospheric circulation in the Southern Hemisphere. Sun, Dan; Xue, Feng; Zhou, Tianjun // Advances in Atmospheric Sciences;Nov2013, Vol. 30 Issue 6, p1732 

    Based on NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis data from 1979 to 2010, the impacts of two types of El Niño on atmospheric circulation in the Southern Hemisphere (SH) are analyzed. It is shown that, when a warming event...

  • Relationship between Reduction of Summer Precipitation in North China and Atmospheric Circulation Anomalies. Hao, Lisheng; Min, Jinzhong; Ding, Yihui; Wang, Ji // Journal of Water Resource & Protection;Jun2010, Vol. 2 Issue 6, p569 

    Based on Reanalysis datasets from National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) and summer rainfall datasets from China National Climate Center (NCC), by using trend analysis and composite analysis methods, the relationship between the...

  • Study of a helical Asian monsoon based on reanalysis of data and the results of numerical modeling of atmospheric circulation with account for the Inhomogeneous Gravity Force. Makosko, A.; Rubinstein, K. // Doklady Earth Sciences;Nov2014, Vol. 459 Issue 1, p1451 

    The article discusses helical monsoon in Asia and inhomogeneous gravity force (IGF). Topics discussed include mathematical modeling of general atmospheric circulation (GAC), analysis of helicity, and study based on the reanalysis data carried out by the US National Center for Atmospheric...

  • Air temperature trends related to changes in atmospheric circulation in the wider area of Greece. Nastos, P.T.; Philandras, C.M.; Founda, D.; Zerefos, C.S. // International Journal of Remote Sensing;2/10/2011, Vol. 32 Issue 3, p737 

    Surface air temperature trends in the wider region of Greece during the period 1951-2007, related to atmospheric circulation, are examined in this work. A network of 31 meteorological stations in the Hellenic area and the Asia Minor coasts and National Centers for Environmental...

  • The NCEP-NCAR 50-Year Reanalysis: Monthly Means CD-ROM and Documentation. Kistler, Robert; Kalnay, Eugenia; Collins, William; Saha, Suranjana; White, Glenn; Woollen, John; Chelliah, Muthuvel; Ebisuzaki, Wesley; Kanamitsu, Masao; Kousky, Vernon; van den Dool, Huug; Jenne, Roy; Fiorino, Michael // Bulletin of the American Meteorological Society;Feb2001, Vol. 82 Issue 2, p247 

    Focuses on the National Centers for Environmental Prediction and National Center for Atmospheric Research's project aimed at producing a retroactive record of research on atmospheric fields. Description of the reanalysis data assimilation system; Changes in observing systems and their impact on...

  • Evaluation of the Earth Radiation Budget in NCEP-NCAR Reanalysis with ERBE. Shi-Keng Yang; Yu-Tai Hou; Miller, Alvin J.; Campana, Kenneth A. // Journal of Climate;2/1/99, Vol. 12 Issue 2, p477 

    This study presents an evaluation of the NCEP-NCAR Reanalysis (the reanalysis) by comparing its components of the earth radiation budget to satellite data. Monthly mean clear sky (CS) and total sky of outgoing longwave radiation (OLR), as well as reflected solar radiation (RSW) for 1985 and...

  • Structure and Origin of the Quasi-Biweekly Oscillation over the Tropical Indian Ocean in Boreal Spring. Min Wen; Li, Tim; Renhe Zhang; Yanjun Qi // Journal of the Atmospheric Sciences;Jun2010, Vol. 67 Issue 6, p1965 

    The structure and evolution features of the quasi-biweekly (10–20 day) oscillation (QBWO) in boreal spring over the tropical Indian Ocean (IO) are investigated using 27-yr daily outgoing longwave radiation (OLR) and the National Centers for Environment Prediction–National Center...

  • Quantifying Uncertainties in NCEP Reanalyses Using High-Quality Research Vessel Observations. Smith, Shawn R.; Legler, David M.; Verzone, Kathleen V. // Journal of Climate;Oct2001, Vol. 14 Issue 20, p4062 

    The uncertainties in the NCEP–NCAR reanalysis (NCEPR) products are not well known. Using a newly developed, high-resolution, quality controlled, surface meteorology dataset from research vessels participating in the World Ocean Circulation Experiment (WOCE), regional and global...

  • Climatology and Interannual Variation of the East Asian Winter Monsoon: Results from the 1979--95 NCEP/NCAR Reanalysis. Yi Zhang; Sperber, Kenneth R.; Boyle, James S. // Monthly Weather Review;Oct97, Vol. 125 Issue 10, p2605 

    This paper presents the climatology and interannual variation of the East Asian winter monsoon based on the 1979--95 National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis. In addition to documenting the frequency, intensity, and preferred propagation...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics