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A Model for the Relationship between Rainfall, GNSS-Derived Integrated Water Vapour, and CAPE in the Eastern Central Andes

Ramezani Ziarani, Maryam; Bookhagen, Bodo; Schmidt, Torsten; Wickert, Jens; Torre, Alejandro de la; Deng, Zhiguo; Calori, Andrea


Atmospheric water vapour content is a key variable that controls the development of deep convective storms and rainfall extremes over the central Andes. Direct measurements of water vapour are challenging; however, recent developments in microwave processing allow the use of phase delays from L-band radar to measure the water vapour content throughout the atmosphere: Global Navigation Satellite System (GNSS)-based integrated water vapour (IWV) monitoring shows promising results to measure vertically integrated water vapour at high temporal resolutions. Previous works also identified convective available potential energy (CAPE) as a key climatic variable for the formation of deep convective storms and rainfall in the central Andes. Our analysis relies on GNSS data from the Argentine Continuous Satellite Monitoring Network, Red Argentina de Monitoreo Satelital Continuo (RAMSAC) network from 1999 to 2013. CAPE is derived from version 2.0 of the ECMWF’s (European Centre for Medium-Range Weather Forecasts) Re-Analysis (ERA-interim) and rainfall from the TRMM (Tropical Rainfall Measuring Mission) product. In this study, we first analyse the rainfall characteristics of two GNSS-IWV stations by comparing their complementary cumulative distribution function (CCDF). ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000143185
Veröffentlicht am 20.02.2022
DOI: 10.3390/rs13183788
Zitationen: 5
Web of Science
Zitationen: 3
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2072-4292
KITopen-ID: 1000143185
Erschienen in Remote sensing
Verlag MDPI
Band 13
Heft 18
Seiten Art. Nr.: 3788
Vorab online veröffentlicht am 21.09.2021
Schlagwörter Global Navigation Satellite System (GNSS), GNSS-integrated water vapour, convective available potential energy (CAPE), extreme rainfall, TRMM
Nachgewiesen in Dimensions
Web of Science
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