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  Learning by doing: seasonal and diurnal features of tropical precipitation in a global-coupled storm-resolving model

Segura, H., Hohenegger, C., Wengel, C., & Stevens, B. (2022). Learning by doing: seasonal and diurnal features of tropical precipitation in a global-coupled storm-resolving model. Geophysical Research Letters, 49: e2022GL101796. doi:10.1029/2022GL101796.

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 Creators:
Segura, Hans1, Author                 
Hohenegger, Cathy1, Author                 
Wengel , Christian1, Author
Stevens, Bjorn2, Author                 
Affiliations:
1Precipitating Convection, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society, ou_3001851              
2Director’s Research Group AES, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society, ou_913570              

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 Abstract: Using the global and coupled ICOsahedral Nonhydrostatic model with the Sapphire configuration (ICON-S) and a grid spacing of 5 km, we describe seasonal and diurnal features of the tropical rainbelt and assess the limits of ICON-S in representing tropical precipitation. ICON-S shows that, by resolving meso-beta scale process, the rainbelt structure and its seasonality (zonal and meridional migration and enlargement) is reproduced, with better performance over land than over ocean and with a very high degree of agreement to observations. ICON-S especially struggles in capturing the seasonal features of the tropical rainbelt over the oceans of the Eastern Hemisphere, an issue associated with a cold sea surface temperature (SST) bias at the equator. ICON-S also shows that a perfect representation of the diurnal cycle of precipitation over land is not a requirement to capture the seasonal features of the rainbelt over land, while over the ocean, 5 km is sufficient to adequately represent the diurnal cycle of precipitation. © 2022. The Authors

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Language(s): eng - English
 Dates: 2022-102022-102022-12-282022-12-28
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: DOI: 10.1029/2022GL101796
BibTex Citekey: SeguaHoheneggerEtAl2022
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Project name : NextGEMS
Grant ID : 101003470
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)
Project name : CONSTRAIN
Grant ID : 493B
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

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Title: Geophysical Research Letters
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Pages: - Volume / Issue: 49 Sequence Number: e2022GL101796 Start / End Page: - Identifier: -
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