positive area

(redirected from Convective available potential energy)
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positive area

[′päz·əd·iv ′er·ē·ə]
(geography)
References in periodicals archive ?
The lower troposphere in this nocturnal environment is typically characterized by a low-level jet (LLJ) just above a stable boundary layer (SBL), and convective available potential energy (CAPE) values that peak above the SBL, resulting in convection that may be elevated, with source air decoupled from the surface.
These environments are defined by high levels of convective available potential energy (CAPE), strong low-level stormrelative helicity (SRH), and strong deep-layer vertical wind shear, or bulk wind difference (BWD; Doswell 1980; Brooks et al.
7), although only moderate instability was present [the surface-based convective available potential energy (CAPE), obtained by lifting a parcel from 2-m height and including the virtual temperature correction, was 970 J [kg.