Evaluation of the atmosphere–land–ocean–sea ice interface processes in the Regional Arctic System Model version 1 (RASM1) using local and globally gridded observations
The Regional Arctic System Model version 1 (RASM1) has been developed to provide high-resolution simulations of the Arctic atmosphere-ocean-sea ice-land system. Here, we provide a baseline for the capability of RASM to simulate interface processes by comparing retrospective simulations from RASM1 fo...
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Online Access: | https://doi.org/10.5194/gmd-11-4817-2018 |
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ftncar:oai:drupal-site.org:articles_22192 2023-09-05T13:15:39+02:00 Evaluation of the atmosphere–land–ocean–sea ice interface processes in the Regional Arctic System Model version 1 (RASM1) using local and globally gridded observations Brunke, Michael A. (author) Cassano, John J. (author) Dawson, Nicholas (author) DuVivier, Alice K. (author) Gutowski Jr., William J. (author) Hamman, Joseph (author) Maslowski, Wieslaw (author) Nijssen, Bart (author) Reeves Eyre, J. E. Jack (author) Renteria, José C. (author) Roberts, Andrew (author) Zeng, Xubin (author) 2018-12-04 https://doi.org/10.5194/gmd-11-4817-2018 en eng Geoscientific Model Development--Geosci. Model Dev.--1991-9603 A Science Plan for Regional Arctic System Modeling, A report to the National Science Foundation from the International Arctic Science Community.--10.13140/2.1.1828.9441 NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 3--10.7265/N59P2ZTG ERA-Interim Project, Monthly Means--10.5065/D68050NT articles:22192 ark:/85065/d7474dt1 doi:10.5194/gmd-11-4817-2018 Copyright 2018 Author(s). This work is licensed under a Creative Commons Attribution 4.0 International license. article Text 2018 ftncar https://doi.org/10.5194/gmd-11-4817-2018 2023-08-14T18:49:43Z The Regional Arctic System Model version 1 (RASM1) has been developed to provide high-resolution simulations of the Arctic atmosphere-ocean-sea ice-land system. Here, we provide a baseline for the capability of RASM to simulate interface processes by comparing retrospective simulations from RASM1 for 1990-2014 with the Community Earth System Model version 1 (CESM1) and the spread across three recent reanalyses. Evaluations of surface and 2 m air temperature, surface radiative and turbulent fluxes, precipitation, and snow depth in the various models and reanalyses are performed using global and regional datasets and a variety of in situ datasets, including flux towers over land, ship cruises over oceans, and a field experiment over sea ice. These evaluations reveal that RASM1 simulates precipitation that is similar to CESM1, reanalyses, and satellite gauge combined precipitation datasets over all river basins within the RASM domain. Snow depth in RASM is closer to upscaled surface observations over a flatter region than in more mountainous terrain in Alaska. The sea ice-atmosphere interface is well simulated in regards to radiation fluxes, which generally fall within observational uncertainty. RASM1 monthly mean surface temperature and radiation biases are shown to be due to biases in the simulated mean diurnal cycle. At some locations, a minimal monthly mean bias is shown to be due to the compensation of roughly equal but opposite biases between daytime and nighttime, whereas this is not the case at locations where the monthly mean bias is higher in magnitude. These biases are derived from errors in the diurnal cycle of the energy balance (radiative and turbulent flux) components. Therefore, the key to advancing the simulation of SAT and the surface energy budget would be to improve the representation of the diurnal cycle of radiative and turbulent fluxes. The development of RASM2 aims to address these biases. Still, an advantage of RASM1 is that it captures the interannual and interdecadal variability in the ... Article in Journal/Newspaper Arctic Arctic Sea ice Alaska OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Geoscientific Model Development 11 12 4817 4841 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The Regional Arctic System Model version 1 (RASM1) has been developed to provide high-resolution simulations of the Arctic atmosphere-ocean-sea ice-land system. Here, we provide a baseline for the capability of RASM to simulate interface processes by comparing retrospective simulations from RASM1 for 1990-2014 with the Community Earth System Model version 1 (CESM1) and the spread across three recent reanalyses. Evaluations of surface and 2 m air temperature, surface radiative and turbulent fluxes, precipitation, and snow depth in the various models and reanalyses are performed using global and regional datasets and a variety of in situ datasets, including flux towers over land, ship cruises over oceans, and a field experiment over sea ice. These evaluations reveal that RASM1 simulates precipitation that is similar to CESM1, reanalyses, and satellite gauge combined precipitation datasets over all river basins within the RASM domain. Snow depth in RASM is closer to upscaled surface observations over a flatter region than in more mountainous terrain in Alaska. The sea ice-atmosphere interface is well simulated in regards to radiation fluxes, which generally fall within observational uncertainty. RASM1 monthly mean surface temperature and radiation biases are shown to be due to biases in the simulated mean diurnal cycle. At some locations, a minimal monthly mean bias is shown to be due to the compensation of roughly equal but opposite biases between daytime and nighttime, whereas this is not the case at locations where the monthly mean bias is higher in magnitude. These biases are derived from errors in the diurnal cycle of the energy balance (radiative and turbulent flux) components. Therefore, the key to advancing the simulation of SAT and the surface energy budget would be to improve the representation of the diurnal cycle of radiative and turbulent fluxes. The development of RASM2 aims to address these biases. Still, an advantage of RASM1 is that it captures the interannual and interdecadal variability in the ... |
author2 |
Brunke, Michael A. (author) Cassano, John J. (author) Dawson, Nicholas (author) DuVivier, Alice K. (author) Gutowski Jr., William J. (author) Hamman, Joseph (author) Maslowski, Wieslaw (author) Nijssen, Bart (author) Reeves Eyre, J. E. Jack (author) Renteria, José C. (author) Roberts, Andrew (author) Zeng, Xubin (author) |
format |
Article in Journal/Newspaper |
title |
Evaluation of the atmosphere–land–ocean–sea ice interface processes in the Regional Arctic System Model version 1 (RASM1) using local and globally gridded observations |
spellingShingle |
Evaluation of the atmosphere–land–ocean–sea ice interface processes in the Regional Arctic System Model version 1 (RASM1) using local and globally gridded observations |
title_short |
Evaluation of the atmosphere–land–ocean–sea ice interface processes in the Regional Arctic System Model version 1 (RASM1) using local and globally gridded observations |
title_full |
Evaluation of the atmosphere–land–ocean–sea ice interface processes in the Regional Arctic System Model version 1 (RASM1) using local and globally gridded observations |
title_fullStr |
Evaluation of the atmosphere–land–ocean–sea ice interface processes in the Regional Arctic System Model version 1 (RASM1) using local and globally gridded observations |
title_full_unstemmed |
Evaluation of the atmosphere–land–ocean–sea ice interface processes in the Regional Arctic System Model version 1 (RASM1) using local and globally gridded observations |
title_sort |
evaluation of the atmosphere–land–ocean–sea ice interface processes in the regional arctic system model version 1 (rasm1) using local and globally gridded observations |
publishDate |
2018 |
url |
https://doi.org/10.5194/gmd-11-4817-2018 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Sea ice Alaska |
genre_facet |
Arctic Arctic Sea ice Alaska |
op_relation |
Geoscientific Model Development--Geosci. Model Dev.--1991-9603 A Science Plan for Regional Arctic System Modeling, A report to the National Science Foundation from the International Arctic Science Community.--10.13140/2.1.1828.9441 NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 3--10.7265/N59P2ZTG ERA-Interim Project, Monthly Means--10.5065/D68050NT articles:22192 ark:/85065/d7474dt1 doi:10.5194/gmd-11-4817-2018 |
op_rights |
Copyright 2018 Author(s). This work is licensed under a Creative Commons Attribution 4.0 International license. |
op_doi |
https://doi.org/10.5194/gmd-11-4817-2018 |
container_title |
Geoscientific Model Development |
container_volume |
11 |
container_issue |
12 |
container_start_page |
4817 |
op_container_end_page |
4841 |
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1776197509761204224 |