Introducing CRYOWRF v1.0: multiscale atmospheric flow simulations with advanced snow cover modelling

<p>Accurately simulating snow cover dynamics and the snow–atmosphere coupling is of major importance for topics as wide-ranging as water resources, natural hazards, and climate change impacts with consequences for sea level rise. We present a new modelling framework for atmospheric flow simula...

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Main Authors: V. Sharma, F. Gerber, M. Lehning
Format: Article
Language:English
Published: Copernicus Publications 2023-01-01
Series:Geoscientific Model Development
Online Access:https://gmd.copernicus.org/articles/16/719/2023/gmd-16-719-2023.pdf
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author V. Sharma
V. Sharma
V. Sharma
F. Gerber
F. Gerber
M. Lehning
M. Lehning
author_facet V. Sharma
V. Sharma
V. Sharma
F. Gerber
F. Gerber
M. Lehning
M. Lehning
author_sort V. Sharma
collection DOAJ
description <p>Accurately simulating snow cover dynamics and the snow–atmosphere coupling is of major importance for topics as wide-ranging as water resources, natural hazards, and climate change impacts with consequences for sea level rise. We present a new modelling framework for atmospheric flow simulations for cryospheric regions called CRYOWRF. CRYOWRF couples the state-of-the-art and widely used atmospheric model WRF (the Weather Research and Forecasting model) with the detailed snow cover model SNOWPACK. CRYOWRF makes it feasible to simulate the dynamics of a large number of snow layers governed by grain-scale prognostic variables with online coupling to the atmosphere for multiscale simulations from the synoptic to the turbulent scales. Additionally, a new blowing snow scheme is introduced in CRYOWRF and is discussed in detail. CRYOWRF's technical design goals and model capabilities are described, and the performance costs are shown to compare favourably with existing land surface schemes. Three case studies showcasing envisaged use cases for CRYOWRF for polar ice sheets and alpine snowpacks are provided to equip potential users with templates for their research. Finally, the future roadmap for CRYOWRF's development and usage is discussed.</p>
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spelling doaj.art-67380b7480c8498e9c8b0d579009f4b32023-01-30T11:53:12ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032023-01-011671974910.5194/gmd-16-719-2023Introducing CRYOWRF v1.0: multiscale atmospheric flow simulations with advanced snow cover modellingV. Sharma0V. Sharma1V. Sharma2F. Gerber3F. Gerber4M. Lehning5M. Lehning6School of Architecture, Civil and Environmental Engineering, Swiss Federal Institute of Technology, Lausanne, SwitzerlandSnow Processes, Snow and Avalanche Research Unit, WSL Institute for Snow and Avalanche Research SLF, Davos, SwitzerlandSunwell Sàrl, Lausanne, SwitzerlandSchool of Architecture, Civil and Environmental Engineering, Swiss Federal Institute of Technology, Lausanne, SwitzerlandSnow Processes, Snow and Avalanche Research Unit, WSL Institute for Snow and Avalanche Research SLF, Davos, SwitzerlandSchool of Architecture, Civil and Environmental Engineering, Swiss Federal Institute of Technology, Lausanne, SwitzerlandSnow Processes, Snow and Avalanche Research Unit, WSL Institute for Snow and Avalanche Research SLF, Davos, Switzerland<p>Accurately simulating snow cover dynamics and the snow–atmosphere coupling is of major importance for topics as wide-ranging as water resources, natural hazards, and climate change impacts with consequences for sea level rise. We present a new modelling framework for atmospheric flow simulations for cryospheric regions called CRYOWRF. CRYOWRF couples the state-of-the-art and widely used atmospheric model WRF (the Weather Research and Forecasting model) with the detailed snow cover model SNOWPACK. CRYOWRF makes it feasible to simulate the dynamics of a large number of snow layers governed by grain-scale prognostic variables with online coupling to the atmosphere for multiscale simulations from the synoptic to the turbulent scales. Additionally, a new blowing snow scheme is introduced in CRYOWRF and is discussed in detail. CRYOWRF's technical design goals and model capabilities are described, and the performance costs are shown to compare favourably with existing land surface schemes. Three case studies showcasing envisaged use cases for CRYOWRF for polar ice sheets and alpine snowpacks are provided to equip potential users with templates for their research. Finally, the future roadmap for CRYOWRF's development and usage is discussed.</p>https://gmd.copernicus.org/articles/16/719/2023/gmd-16-719-2023.pdf
spellingShingle V. Sharma
V. Sharma
V. Sharma
F. Gerber
F. Gerber
M. Lehning
M. Lehning
Introducing CRYOWRF v1.0: multiscale atmospheric flow simulations with advanced snow cover modelling
Geoscientific Model Development
title Introducing CRYOWRF v1.0: multiscale atmospheric flow simulations with advanced snow cover modelling
title_full Introducing CRYOWRF v1.0: multiscale atmospheric flow simulations with advanced snow cover modelling
title_fullStr Introducing CRYOWRF v1.0: multiscale atmospheric flow simulations with advanced snow cover modelling
title_full_unstemmed Introducing CRYOWRF v1.0: multiscale atmospheric flow simulations with advanced snow cover modelling
title_short Introducing CRYOWRF v1.0: multiscale atmospheric flow simulations with advanced snow cover modelling
title_sort introducing cryowrf v1 0 multiscale atmospheric flow simulations with advanced snow cover modelling
url https://gmd.copernicus.org/articles/16/719/2023/gmd-16-719-2023.pdf
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