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Award Abstract #1036858

Teleconnections: Intraseasonal Dynamics and its Relationship to Interannual and Interdecadal Variability

NSF Org: AGS
Div Atmospheric & Geospace Sciences
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Initial Amendment Date: February 2, 2011
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Latest Amendment Date: April 2, 2013
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Award Number: 1036858
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Award Instrument: Standard Grant
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Program Manager: Eric T. DeWeaver
AGS Div Atmospheric & Geospace Sciences
GEO Directorate For Geosciences
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Start Date: February 1, 2011
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End Date: January 31, 2015 (Estimated)
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Awarded Amount to Date: $540,920.00
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Investigator(s): Steven Feldstein sbf1@meteo.psu.edu (Principal Investigator)
Sukyoung Lee (Co-Principal Investigator)
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Sponsor: Pennsylvania State Univ University Park
110 Technology Center Building
UNIVERSITY PARK, PA 16802-7000 (814)865-1372
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NSF Program(s): CLIMATE & LARGE-SCALE DYNAMICS
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Program Reference Code(s): 0000, 9178, 9251, SMET, OTHR
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Program Element Code(s): 5740

ABSTRACT

This project studies the dynamics of the recurrent patterns of variability of the large-scale atmospheric cicrulation, including the Pacific/North American Pattern, the North Atlantic Oscillation, and the Northern and Southern Hemisphere Annular Modes. These patterns, sometimes referred to as teleconnection patterns, have a large influence on weather and climate at the earth's surface and thus have a variety of important impacts. The work has three goals: (1) to investigate the basic dynamical processes associated with teleconnection patterns; (2) to to understand the implications of teleconnection patterns on the predictability of atmospheric flow on synoptic to intraseasonal timescales; and 3) to understand the implications of teleconnection patterns for interannual to decadal atmospheric variability. The method of Self Organizing Maps is used to identify the teleconnection patterns, and a combination of statistical techniques and idealized numerical models will be used to understand the underlying dynamics of the patterns.

The work has relevance to society because the weather and climate fluctuations associated with teleconnection patterns are important for human activities and the natural world. The results of the work have the potential to improve medium- to long-range forecasting, and preliminary results are already in use at the National Oceanic and Atmospheric Administration's Climate Prediction Center. In addition, the work supports a graduate student, thereby providing support and training to the next generation of scientists.


PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Yoo, C., S. Lee, and S. B. Feldstein. "Arctic response to an MJO-like tropical heating in an idealized GCM," J. Atmos. Sci., v.69, 2012, p. 2379.

Luo, D., Y. Yao, and S. B. Feldstein. "Regime transition of the North Atlantic Oscillation and extreme cold events over Europe," Mon. Wea. Rev., v.142, 2014, p. 4735.

Yoo, C., S. Lee, and S. B. Feldstein. "Mechanisms of extratropical surface air temperature change in response to the Madden-Julian Oscillation," J. Climate, v.25, 2012, p. 5777.

Luo, D., J. Cha, and S. B. Feldstein. "Weather regime transitions and the
interannual variability of the North Atlantic Oscillation. Part II," J. Atmos. Sci., v.69, 2012, p. 2347.

Yuan, J., S. B. Feldstein, S. Lee, and B. Tan. "The relationship between the North Atlantic jet and tropical convection over the Indian and western Pacific Oceans," J. Climate, v.24, 2011, p. 6100.

Luo, D., J. Cha, and S. B. Feldstein. "Weather regime transitions and the interannual variability of the North Atlantic Oscillation. Part I: A likely connection," J. Atmos. Sci., v.69, 2012, p. 2329.

Yoo*, C., S. Lee, and S. B. Feldstein. "The impact of the MJO trend
on the inter-decadal high latitude warming in the Southern Hemisphere during the 1979-2008 austral winter," Atmos. Sci. Let., v.13, 2012, p. 194.

Krichak, S. O., Y. Barkan, J. S. Breitgand, S. Gualdi, and S. B. Feldstein. "The role of the export of tropical moisture into midlatitudes for extreme precipitation events in the Mediterranean region," Theor. Appl. Climatol., v.117, 2014, p. 679.

Lee, S., and S. B. Feldstein. "Detecting ozone- and greenhouse-gas-driven wind trends with observational data," Science, v.339, 2013, p. 563. 

Lee, S., and S. B. Feldstein. "Detecting ozone- and greenhouse-gas-driven wind trends with observational data," Science, v.339, 2013, p. 563. 


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BOOKS/ONE TIME PROCEEDING

Steven B. Feldstein and Sukyoung Lee. "Trends in Northern Hemisphere storm
tracks and teleconnections and their
linkage to Greenhouse-gas increase,
tropical convection and sea ice", 02/01/2012-01/31/2013,  2012, "2012 AGU Fall Meeting 3-7 December 2012, San Francisco, California".

 

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