publication . Article . 1998

Assessing the Vertical Distribution of Convective Available Potential Energy

Hufford, Gary L.; Lee Kelley, H.; Sparkman, William; Moore, Raymond K.;
Open Access
  • Published: 01 Sep 1998 Journal: Weather and Forecasting, volume 13, pages 870-877 (issn: 0882-8156, eissn: 1520-0434, Copyright policy)
  • Publisher: American Meteorological Society
Abstract
Comparisons of convective available potential energy (CAPE) with standard instability indices for evaluating the convective potential of the atmosphere such as the lifted index (LI) reveal only moderate correlations. This is because the LI is a measure of single-level buoyancy while CAPE is a measure of both integration depth and the buoyancy. Normalizing the CAPE values by the depth over which the integration takes place provides an index (NCAPE) that is independent of the depth and is a convenient measure of the mean parcel buoyancy. This normalization effectively distinguishes between environments with similar CAPE but exhibiting different buoyancy and integr...
Subjects
free text keywords: Lifted index, Buoyancy, engineering.material, engineering, Convective available potential energy, Convective inhibition, Atmospheric convection, Atmospheric instability, Meteorology, Natural convection, Mathematics, Convection
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publication . Article . 1998

Assessing the Vertical Distribution of Convective Available Potential Energy

Hufford, Gary L.; Lee Kelley, H.; Sparkman, William; Moore, Raymond K.;