Article Type:
Research Article

Comparisons of LFM and NGM Lifted-Index Calculations

Ralph A. Petersen NOAA/NWS/NMC Development Division, Camp Springs, Maryland

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Print Publication:
01 Sep 1992
DOI:
https://doi.org/10.1175/1520-0434(1992)007<0536:COLANL>2.0.CO;2
Page(s):
536–541
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Abstract

Several different forms of lifted index (LI) calculations are available from the Limited-Area Fine Mesh Model (LFM) and Nested-Grid Model (NGM) run operationally at the National Meteorological Center (NMC). The differences between the index calculations are presented, various applications of the LI are discussed, and a case demonstrating some of the strengths and weaknesses of each is presented.

Abstract

Several different forms of lifted index (LI) calculations are available from the Limited-Area Fine Mesh Model (LFM) and Nested-Grid Model (NGM) run operationally at the National Meteorological Center (NMC). The differences between the index calculations are presented, various applications of the LI are discussed, and a case demonstrating some of the strengths and weaknesses of each is presented.

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