1234637
doi
10.1175/1520-0434(1998)013<0870:atvdoc>2.0.co;2
oai:zenodo.org:1234637
Assessing the Vertical Distribution of Convective Available Potential Energy
Blanchard, David O.
info:eu-repo/semantics/openAccess
Creative Commons Zero v1.0 Universal
https://creativecommons.org/publicdomain/zero/1.0/legalcode
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 integration depth. Also, because the vertical distribution of CAPE can have an important effect on convective updraft strength, it is advantageous to vertically partition CAPE and NCAPE into multiple layers. NCAPE may provide a more useful indicator of buoyancy in environments in which the depth of free convection is shallow and total CAPE is small. It is suggested that NCAPE computations be used in combination with CAPE for evaluation of convective potential.
Zenodo
1998-09-01
info:eu-repo/semantics/article
1234636
1579539895.507
142682
md5:b8ba4dddb930e760d7f4fb7f35558bc1
https://zenodo.org/records/1234637/files/article.pdf
public