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Award Abstract #1139970

The Dynamics of Storm Tracks and Jets in the Atmosphere and Ocean

NSF Org: AGS
Div Atmospheric & Geospace Sciences
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Initial Amendment Date: December 20, 2011
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Latest Amendment Date: December 20, 2011
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Award Number: 1139970
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Award Instrument: Standard Grant
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Program Manager: Anjuli S. Bamzai
AGS Div Atmospheric & Geospace Sciences
GEO Directorate For Geosciences
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Start Date: December 15, 2011
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End Date: November 30, 2016 (Estimated)
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Awarded Amount to Date: $562,003.00
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Investigator(s): Sukyoung Lee sl@meteo.psu.edu (Principal Investigator)
Steven Feldstein (Co-Principal Investigator)
Leah Bug (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): PHYSICAL OCEANOGRAPHY,
CLIMATE & LARGE-SCALE DYNAMICS
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Program Reference Code(s): 1324, 4444, EGCH
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Program Element Code(s): 1610, 5740

ABSTRACT

The goals of this project are to advance knowledge of the workings of midlatitude storm tracks and their relationship with large-scale westerly jets. Improved knowledge of the physical processes that drive jets and storm tracks will lead to better understand of the variability of the closely related surface temperature and precipitation fields. The three main research objectives are as below (i) to investigate the influence of surface Ekman pumping on the intensity of storm tracks; (ii) to examine the processes that drive jet variability; and (iii) to explore whether the eddy-multiple jet interactions in studies using highly idealized models of the atmosphere and ocean hold up in more realistic models of the atmosphere and ocean, respectively. The outcome from the eddy-resolving ocean model analysis is anticipated to help improve eddy flux parameterizations for coarse resolution ocean climate models.

In addition to training of graduate students, workshops for middle school teachers will be conducted. These workshops will blend science content and science pedagogy, providing teachers with implementation strategies for their classrooms. Thus the benefits to society are multi-faceted.


PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Meerea Park and Sukyoung Lee. "The impact of meridional shear on baroclinic life cycle.?," Asia-Pacific J. Atmos. Sci., v.49, 2013.

Sukyoung Lee. "A theory for polar amplification from a general circulation perspective," Asia-Pacific J. Atmos. Sci., v.50, 2014, p. 31.

Cory Baggett and Sukyoung Lee. "Ekman pumping and the energetics of the Southern Hemisphere eddy life cycle.," J. Atmos. Sci., v.71, 2014, p. 2944.

Sukyoung Lee. "Testing of the Tropically Excited Arctic Warming Mechanism (TEAM) with Traditional El Niņo and La Niņa," J. Climate, v.25, 2012, p. 4015.

Sukyoung Lee and Changhyun Yoo. "On the causal relationship between poleward heat flux and the equator-to-pole temperature gradient: a cautionary tale," J. Climate, v.27, 2014, p. 6519.

Steven Feldstein and Sukyoung Lee. "Intraseasonal and Interdecadal Jet Shifts in the Northern Hemisphere: the Role of Warm Pool Tropical Convection and Sea Ice," J. Climate, v.27, 2014, p. 6497.

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

Sukyoung Lee and Steven B Feldstein. "Detecting Ozone- and Greenhouse Gas?Driven Wind Trends with Observational Data," Science, v.339, 2013, p. 563. 

Sukyoung Lee. "Testing of the Tropically Excited Arctic Warming Mechanism (TEAM) with Traditional El Niņo and La Niņa.," J. Climate, v.25, 2012, p. 4015. 

Changhyun Yoo, Steven Feldstein, and Sukyoung Lee. "The prominence of a tropical convective signal in the wintertime Arctic temperature," Atmos. Sci. Let, 2014. 


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