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 article of record as published may be found at http://dx.doi.org/10.5194/gmd-11-4817-2018 Includes supplementary material 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 prov...
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ftnavalpschool:oai:calhoun.nps.edu:10945/68420 2024-06-23T07:48:26+00:00 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. Cassano, John J. Dawson, Nicholas DuVivier, Alice K. Gutowski, William J., Jr. Hamman, Joseph Maslowski, Wieslaw Nijssen, Bart Eyre, J. E. Jack Reeves Renteria, José C. Roberts, Andrew Zeng, Xubin Naval Postgraduate School Oceanography 2018-12-04 25 p. application/pdf https://hdl.handle.net/10945/68420 unknown Copernicus Publications on behalf of the European Geosciences Union Brunke, Michael A., et al. "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." Geoscientific Model Development 11.12 (2018): 4817-4841. https://hdl.handle.net/10945/68420 This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. Article 2018 ftnavalpschool 2024-06-11T14:17:29Z The article of record as published may be found at http://dx.doi.org/10.5194/gmd-11-4817-2018 Includes supplementary material 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 ... Article in Journal/Newspaper Arctic Arctic Sea ice Alaska Naval Postgraduate School: Calhoun Arctic |
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Naval Postgraduate School: Calhoun |
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ftnavalpschool |
language |
unknown |
description |
The article of record as published may be found at http://dx.doi.org/10.5194/gmd-11-4817-2018 Includes supplementary material 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 ... |
author2 |
Naval Postgraduate School Oceanography |
format |
Article in Journal/Newspaper |
author |
Brunke, Michael A. Cassano, John J. Dawson, Nicholas DuVivier, Alice K. Gutowski, William J., Jr. Hamman, Joseph Maslowski, Wieslaw Nijssen, Bart Eyre, J. E. Jack Reeves Renteria, José C. Roberts, Andrew Zeng, Xubin |
spellingShingle |
Brunke, Michael A. Cassano, John J. Dawson, Nicholas DuVivier, Alice K. Gutowski, William J., Jr. Hamman, Joseph Maslowski, Wieslaw Nijssen, Bart Eyre, J. E. Jack Reeves Renteria, José C. Roberts, Andrew Zeng, Xubin 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 |
author_facet |
Brunke, Michael A. Cassano, John J. Dawson, Nicholas DuVivier, Alice K. Gutowski, William J., Jr. Hamman, Joseph Maslowski, Wieslaw Nijssen, Bart Eyre, J. E. Jack Reeves Renteria, José C. Roberts, Andrew Zeng, Xubin |
author_sort |
Brunke, Michael A. |
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 |
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 |
publisher |
Copernicus Publications on behalf of the European Geosciences Union |
publishDate |
2018 |
url |
https://hdl.handle.net/10945/68420 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Sea ice Alaska |
genre_facet |
Arctic Arctic Sea ice Alaska |
op_relation |
Brunke, Michael A., et al. "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." Geoscientific Model Development 11.12 (2018): 4817-4841. https://hdl.handle.net/10945/68420 |
op_rights |
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. |
_version_ |
1802638853533597696 |