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Record Details

Record 70 of 10717
Analysis of the Interactions of Planetary Waves with the Mean Flow of the Stratosphere
Author and Affiliation:
Newman, Paul A.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Abstract: During the winter period, large scale waves (planetary waves) are observed to propagate from the troposphere into the stratosphere. Such wave events have been recognized since the 1 950s. The very largest wave events result in major stratospheric warmings. These large scale wave events have typical durations of a few days to 2 weeks. The wave events deposit easterly momentum in the stratosphere, decelerating the polar night jet and warming the polar region. In this presentation we show the typical characteristics of these events via a compositing analysis. We will show the typical periods and scales of motion and the associated decelerations and warmings. We will illustrate some of the differences between major and minor warming wave events. We will further illustrate the feedback by the mean flow on subsequent wave events.
Publication Date: Dec 01, 2007
Document ID:
20080030230
(Acquired Aug 05, 2008)
Subject Category: ASTRONOMY
Document Type: Conference Paper
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: ATMOSPHERIC HEATING; STRATOSPHERE; WAVE INTERACTION; PLANETARY WAVES; TROPOSPHERE; WINTER; MOMENTUM; DECELERATION; FEEDBACK
Miscellaneous Notes: American Geophysical Union Fall Meeting, December 2007
Availability Source: Other Sources
Availability Notes: Abstract Only
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