Structure of tropopause polar vortices represented from the atmospheric profiles of satellite observations

Pajela, Ryan

Structure of tropopause polar vortices represented from the atmospheric profiles of satellite observations

dc.contributor.advisor	Cavallo, Steven
dc.contributor.author	Pajela, Ryan
dc.contributor.committeeMember	Redemann, Jens
dc.contributor.committeeMember	Turner, David
dc.date.accessioned	2022-12-15T16:29:17Z
dc.date.available	2022-12-15T16:29:17Z
dc.date.issued	2022-12-16
dc.date.manuscript	2022
dc.description.abstract	Tropopause polar vortices (TPVs) are sub-synoptic tropopause disturbances commonly found poleward of the polar jet stream. Their roles in cyclogenesis and linkages to mid-latitude weather make them relevant to the improvement of numerical weather prediction. Previous TPV studies have been mostly model-based, whereas observational studies are limited. The purpose of this study is to characterize the three-dimensional composite temperature and water vapor structure of TPVs using retrieved atmospheric quantities from the Atmospheric Infrared Sounder (AIRS) and to verify these results with the TPV structure documented in previous model-based and observational studies. The composite structure of AIRS-observed TPVs averaged over a one-year period exhibits a cold (warm) temperature anomaly and a positive (negative) relative humidity anomaly in the troposphere (lower stratosphere). TPV composites also reveal dry mixing ratio anomalies throughout the troposphere and lower stratosphere, and that the percent decrease in mixing ratio is largest at the tropopause at the vortex center. This study thus confirms TPV structure previously characterized in models and surface-based observations. This illustrates the potential usefulness that hyperspectral atmospheric profilers on polar-orbiting satellites have in representing TPVs over the high latitudes where observational data is scarce.	en_US
dc.identifier.uri	https://shareok.org/handle/11244/336941
dc.language	en_US	en_US
dc.rights	Attribution-NonCommercial-ShareAlike 4.0 International	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-sa/4.0/	*
dc.subject	Atmospheric Sciences.	en_US
dc.subject	Physics, Atmospheric Science.	en_US
dc.subject	Geography.	en_US
dc.subject	Physical Geography.	en_US
dc.thesis.degree	Master of Science in Meteorology	en_US
dc.title	Structure of tropopause polar vortices represented from the atmospheric profiles of satellite observations	en_US
ou.group	College of Atmospheric and Geographic Sciences::School of Meteorology	en_US