Observations and numerical modeling of an elevated mixed layer

R. W. Arritt, J. M. Wilczak, George Spencer Young

Research output: Contribution to journalArticle

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Abstract

The EML formed as a dry convective boundary layer over the higher mountainous terrain of western Colorado, and then advected eastward, producing upper-level warming over the eastern plains. This upper-level warming generated a strong capping inversion at the top of a surface-based plains convective boundary layer that formed concurrently with the EML. A model trajectory analysis indicated that air from the plains boundary layer was detrained into the EML in a zone of convergence along the foothills of the Front Range of the Rocky Mountains. Blocking of the plateau-level winds by the plains breeze proved to be the primary constraint on advection of the EML and its underlying lid over the adjacent plains. -from Authors

Original languageEnglish (US)
Pages (from-to)2869-2880
Number of pages12
JournalMonthly Weather Review
Volume120
Issue number12
DOIs
Publication statusPublished - Jan 1 1992

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All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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