Open AccessPhase relation between CAPE and precipitation at diurnal scales over the Indian summer monsoon region
Author(s) -
Subrahmanyam Kandula Venkata,
Kumar Karanam Kishore,
Narendra Babu Alur
Publication year - 2015
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl2.566
Subject(s) - precipitation , climatology , convective available potential energy , monsoon , convection , environmental science , cape , atmospheric sciences , daytime , diurnal cycle , meteorology , geology , geography , archaeology
The phase relation between convection and precipitation at diurnal scales is essential for convective parameterization in numerical weather prediction models. For the first time in a meteorological study, we quantified the phase relationship between convective available potential energy ( CAPE ) and precipitation over the Indian summer monsoon region at diurnal scales using space‐based precipitation and CAPE observations from 7 years (2006–2012) of GPS‐RO measurements. Also, we quantified the phase relationship for the land and oceanic regions separately. On average, the peak in CAPE magnitudes leads precipitation peak by ∼2–4 h over the study region.