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Investigation of GCAPE quasi-equilibrium in the midlatitudes

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dc.contributor.authorCripe, Douglas G., author
dc.date.accessioned2022-03-11T16:25:38Z
dc.date.available2022-03-11T16:25:38Z
dc.date.issued1994-11
dc.descriptionNovember 1994.
dc.descriptionAlso issued as author's thesis (M.S.) -- Colorado State University, 1994.
dc.description.abstractLorenz (1955, 1978, 1979) developed the concept of the "moist available energy" (MAE) of the atmosphere. This he defined as the portion of non-kinetic energy (NKE) available for conversion to kinetic energy (KE). Randall and Wang (1992) and Wang and Randall (1994) showed that it is possible to consider the component of the MAE that re­ sides in the vertical structure of the atmosphere as a "generalized convective available potential energy" (GCAPE). Using data from the tropics, they tested the GCAPE quasi­ equilibrium hypothesis (Arakawa and Schubert, 1974) which asserts that cumulus convection "consumes" GCAPE as quickly as it is produced by large-scale (non-convective) forcing such that the convectively active atmosphere remains close to a state of conditional neutrality. The main purpose of this study is to also investigate the GCAPE quasi-equilibrium hypothesis, only this time in a midlatitude setting. This is a tougher test of the hypothesis given the significantly larger temperature and moisture fluctuations resulting in stronger large-scale forcing in the midlatitudes, compared with the tropics. Data recently made available by the Atmospheric Radiation Measurement (ARM) program has been used. This new data comes from radiosonde measurements collected at ARM's Cloud and Radiation Testbed (CART) site located in north-central Oklahoma during Intensive Operation Periods (IOPs) run periodically throughout the year.
dc.description.sponsorshipSponsored by the National Science Foundation under grant number ATM-9214981 and the U.S. Department of Energy under grant number DE-FG02-92ER61363.
dc.format.mediumreports
dc.identifier.urihttps://hdl.handle.net/10217/234543
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relationCatalog record number (MMS ID): 991023933829703361
dc.relationQC852 .C6 no. 568
dc.relation.ispartofAtmospheric Science Papers (Blue Books)
dc.relation.ispartofAtmospheric science paper, no. 568
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subject.lcshDynamic meteorology
dc.subject.lcshConvection (Meteorology)
dc.titleInvestigation of GCAPE quasi-equilibrium in the midlatitudes
dc.typeText
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