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Synoptic-scale dynamics and modeling of extreme precipitation events in Kenya

Njeri, Joseph Karianjahi

Abstract (englisch):

Extreme and contiguous precipitation events over Kenya are usually catastrophic leading to loss of lives, destruction of infrastructure and impact food security. This work documents synoptic-scale dynamics of these events using case studies with a view to understanding their initiation, evolution and dissipation including representation in models that resolve convection explicitly. As such, various data platforms are used ranging from satellite-based products e.g the Tropical Rainfall Measuring Mission (TRMM-3B42), Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO)/CloudSat overpasses, Advanced Microwave Sounding Unit (AMSU) and Microwave Humidity Sounder (MHS), Infrared brightness temperatures at 10.8 microns from the Spinning Enhanced Visible and Infrared Imager (SEVIRI) as well as surfaces rain-gauges, Meteorological Terminal Air Report (METAR) and European Center for Medium-Range Weather Forecasts (ECMWF) reanalysis products. The latter is used to diagnose the synoptic-scale dynamics of extreme precipitation events. A convection-permitting model known as the ICOsahedral Nonhydrostatic modelling framework (ICON) is used to simulate these events. ... mehr

Volltext §
DOI: 10.5445/IR/1000096478
Veröffentlicht am 17.07.2019
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Forschungsbereich Troposphäre (IMK-TRO)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Hochschulschrift
Publikationsjahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000096478
Verlag Karlsruher Institut für Technologie (KIT)
Umfang XV, 158 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Meteorologie und Klimaforschung – Forschungsbereich Troposphäre (IMK-TRO)
Prüfungsdatum 17.05.2019
Referent/Betreuer Fink, A. H.
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
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