東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Storm track variability and interact...

Wettstein, Justin J.

Linked to FindBook

Google Book

Amazon

博客來

Storm track variability and interaction with the background flow on daily, interannual and climate change time scales.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Storm track variability and interaction with the background flow on daily, interannual and climate change time scales./
Author:	Wettstein, Justin J.
Description:	108 p.
Notes:	Adviser: John M. Wallace.
Contained By:	Dissertation Abstracts International68-11B.
Subject:	Atmospheric Sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3290617
ISBN:	9780549344483

Storm track variability and interaction with the background flow on daily, interannual and climate change time scales.
Wettstein, Justin J.

Storm track variability and interaction with the background flow on daily, interannual and climate change time scales. - 108 p.

Adviser: John M. Wallace.

Thesis (Ph.D.)--University of Washington, 2007.

Variability in the observed Northern and Southern Hemisphere storm tracks is dominated by "pulsing" and "latitudinally shifting" modes in sectors of each hemisphere. These modes are useful simplifications of the full complexity of storm track variability and are ubiquitous in different variables, at different levels in the troposphere and on in the storm track variability on different time scales. Variability associated with the pulsing mode almost always accounts for a large fraction of the variance than the latitudinally shifting mode, but the latitudinally shifting mode is more strongly associated with persistent anomalies in the background flow and with dominant climate variability patterns. At monthly time scales, both the pulsing and latitudinally shifting modes of storm track variability are associated with zonal wind anomalies consistent with eddy-forced acceleration of the zonal wind. At daily time scales, the pulsing mode is associated with an evolution culminating in zonal wind anomalies and eddy activity that shift poleward over time. In model simulations associated with climate change time scales of variability, measures of storm track intensity near the level of the jet indicate suppressed eddy amplitude in cold climates relative to warm climates, whereas measures in the lower troposphere indicate an enhancement of eddy activity. Investigating the seasonality and dynamics of these offsetting tendencies between upper and lower tropospheric levels and the relationship between the dominant modes of storm track variability and the background flow remain as motivations for future work.

ISBN: 9780549344483Subjects--Topical Terms:

1019179
Atmospheric Sciences.

Storm track variability and interaction with the background flow on daily, interannual and climate change time scales.
LDR:02524nam 2200265 a 45 001 942171
005 20110519
008 110519s2007 ||||||||||||||||| ||eng d
020 $a 9780549344483
035 $a (UMI)AAI3290617
035 $a AAI3290617
040 $a UMI $c UMI
100 1 $a Wettstein, Justin J. $3 1266267
245 1 0 $a Storm track variability and interaction with the background flow on daily, interannual and climate change time scales.
300 $a 108 p.
500 $a Adviser: John M. Wallace.
500 $a Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7191.
502 $a Thesis (Ph.D.)--University of Washington, 2007.
520 $a Variability in the observed Northern and Southern Hemisphere storm tracks is dominated by "pulsing" and "latitudinally shifting" modes in sectors of each hemisphere. These modes are useful simplifications of the full complexity of storm track variability and are ubiquitous in different variables, at different levels in the troposphere and on in the storm track variability on different time scales. Variability associated with the pulsing mode almost always accounts for a large fraction of the variance than the latitudinally shifting mode, but the latitudinally shifting mode is more strongly associated with persistent anomalies in the background flow and with dominant climate variability patterns. At monthly time scales, both the pulsing and latitudinally shifting modes of storm track variability are associated with zonal wind anomalies consistent with eddy-forced acceleration of the zonal wind. At daily time scales, the pulsing mode is associated with an evolution culminating in zonal wind anomalies and eddy activity that shift poleward over time. In model simulations associated with climate change time scales of variability, measures of storm track intensity near the level of the jet indicate suppressed eddy amplitude in cold climates relative to warm climates, whereas measures in the lower troposphere indicate an enhancement of eddy activity. Investigating the seasonality and dynamics of these offsetting tendencies between upper and lower tropospheric levels and the relationship between the dominant modes of storm track variability and the background flow remain as motivations for future work.
590 $a School code: 0250.
650 4 $a Atmospheric Sciences. $3 1019179
690 $a 0725
710 2 $a University of Washington. $3 545923
773 0 $t Dissertation Abstracts International $g 68-11B.
790 $a 0250
790 1 0 $a Wallace, John M., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3290617