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Representation of p...
Representation of precipitation and top-of-atmosphere radiation in a multi-model convection-permitting ensemble for the Lake Victoria Basin (East-Africa)
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- Lipzig, Nicole P.M.van (författare)
- Catholic University of Leuven
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- Walle, Jonas Van de (författare)
- Catholic University of Leuven
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- Belušić, Danijel (författare)
- Swedish Meteorological and Hydrological Institute,University of Zagreb
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- Berthou, Ségolène (författare)
- Met Office
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- Coppola, Erika (författare)
- Abdus Salam International Centre for Theoretical Physics (ICTP)
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- Demuzere, Matthias (författare)
- Ruhr-University Bochum
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- Fink, Andreas H. (författare)
- Karlsruhe Institute of Technology
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- Finney, Declan L. (författare)
- University of Leeds
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- Glazer, Russell (författare)
- Abdus Salam International Centre for Theoretical Physics (ICTP)
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- Ludwig, Patrick (författare)
- Karlsruhe Institute of Technology
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- Marsham, John H. (författare)
- University of Leeds
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- Nikulin, Grigory (författare)
- Swedish Meteorological and Hydrological Institute
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- Pinto, Joaquim G. (författare)
- Karlsruhe Institute of Technology
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- Rowell, David P. (författare)
- Met Office
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- Wu, Minchao (författare)
- Uppsala universitet,Uppsala University,Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,Swedish Meteorological and Hydrological Institute,Luft-, vatten- och landskapslära,Program for Air, Water and Landscape Sciences; Meteorology
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- Thiery, Wim (författare)
- Vrije Universiteit Brussel (VUB)
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(creator_code:org_t)
- 2022-11-04
- 2023
- Engelska.
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Ingår i: Climate Dynamics. - : Springer Science and Business Media LLC. - 0930-7575 .- 1432-0894. ; 60:11-12, s. 4033-4054
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http://dx.doi.org/10... (free)
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The CORDEX Flagship Pilot Study ELVIC (climate Extremes in the Lake VICtoria basin) was recently established to investigate how extreme weather events will evolve in this region of the world and to provide improved information for the climate impact community. Here we assess the added value of the convection-permitting scale simulations on the representation of moist convective systems over and around Lake Victoria. With this aim, 10 year present-day model simulations were carried out with five regional climate models at both PARameterized (PAR) scales (12–25 km) and Convection-Permitting (CP) scales (2.5–4.5 km), with COSMO-CLM, RegCM, AROME, WRF and UKMO. Most substantial systematic improvements were found in metrics related to deep convection. For example, the timing of the daily maximum in precipitation is systematically delayed in CP compared to PAR models, thereby improving the agreement with observations. The large overestimation in the total number of rainy events is alleviated in the CP models. Systematic improvements were found in the diurnal cycle in Top-Of-Atmosphere (TOA) radiation and in some metrics for precipitation intensity. No unanimous improvement nor deterioration was found in the representation of the spatial distribution of total rainfall and the seasonal cycle when going to the CP scale. Furthermore, some substantial biases in TOA upward radiative fluxes remain. Generally our analysis indicates that the representation of the convective systems is strongly improved in CP compared to PAR models, giving confidence that the models are valuable tools for studying how extreme precipitation events may evolve in the future in the Lake Victoria basin and its surroundings.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- Convection permitting simulations
- CORDEX Flagship Pilot Study
- Equatorial Africa
- Extreme weather events
- Kilometer-scale resolution
- Lake Victoria basin
- Regional climate models
- Tropical deep convection
- Earth Science with specialization in Physical Geography
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Lipzig, Nicole P ...
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Walle, Jonas Van ...
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Belušić, Danijel
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Berthou, Ségolèn ...
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Coppola, Erika
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Demuzere, Matthi ...
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visa fler...
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Fink, Andreas H.
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Finney, Declan L ...
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Glazer, Russell
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Ludwig, Patrick
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Marsham, John H.
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Nikulin, Grigory
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Pinto, Joaquim G ...
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Rowell, David P.
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Wu, Minchao
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Thiery, Wim
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Climate Dynamics
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Lunds universitet
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