Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models
Many climate models use a rheology of the viscous-plastic type to simulate sea ice dynamics. With this rheology, large scale velocity and thickness fields can be realistically simulated, but the representation of small scale deformation rates and Linear Kinematic Features (LKF) is thought to be inad...
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ftawi:oai:epic.awi.de:43391 2024-09-15T17:50:44+00:00 Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models Hutter, Nils Losch, Martin Menemenlis, Dimitris 2016-10-27 https://epic.awi.de/id/eprint/43391/ https://hdl.handle.net/10013/epic.49925 unknown Hutter, N. orcid:0000-0003-3450-9422 , Losch, M. orcid:0000-0002-3824-5244 and Menemenlis, D. (2016) Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models , NASA Jet Propulsion Laboratory (JPL), USA . hdl:10013/epic.49925 EPIC3NASA Jet Propulsion Laboratory (JPL), USA Conference notRev 2016 ftawi 2024-06-24T04:16:35Z Many climate models use a rheology of the viscous-plastic type to simulate sea ice dynamics. With this rheology, large scale velocity and thickness fields can be realistically simulated, but the representation of small scale deformation rates and Linear Kinematic Features (LKF) is thought to be inadequate. However, at high resolution (< 5 km) the rheology starts to produce lines of localised deformation rates. In this study we use results from a 1-km Pan-Arctic model to investigate the influence of these deformation features on the scaling properties of sea ice deformation. For evaluation the EGPS satellite data set of small-scale sea ice kinematics for the Central Arctic (successor of RGPS) is used. The modelled sea ice deformation shows multi-fractal spatial scaling and, in this sense, agrees with the satellite data. In addition, the temporal coupling of the spatial scaling is reproduced as well. Furthermore, we examine the regional and seasonal variations of spatial scaling properties and its dependence on the ice condition, i.e. sea ice concentration and thickness, which are in agreement with previous RGPS studies. Conference Object Arctic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Many climate models use a rheology of the viscous-plastic type to simulate sea ice dynamics. With this rheology, large scale velocity and thickness fields can be realistically simulated, but the representation of small scale deformation rates and Linear Kinematic Features (LKF) is thought to be inadequate. However, at high resolution (< 5 km) the rheology starts to produce lines of localised deformation rates. In this study we use results from a 1-km Pan-Arctic model to investigate the influence of these deformation features on the scaling properties of sea ice deformation. For evaluation the EGPS satellite data set of small-scale sea ice kinematics for the Central Arctic (successor of RGPS) is used. The modelled sea ice deformation shows multi-fractal spatial scaling and, in this sense, agrees with the satellite data. In addition, the temporal coupling of the spatial scaling is reproduced as well. Furthermore, we examine the regional and seasonal variations of spatial scaling properties and its dependence on the ice condition, i.e. sea ice concentration and thickness, which are in agreement with previous RGPS studies. |
format |
Conference Object |
author |
Hutter, Nils Losch, Martin Menemenlis, Dimitris |
spellingShingle |
Hutter, Nils Losch, Martin Menemenlis, Dimitris Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models |
author_facet |
Hutter, Nils Losch, Martin Menemenlis, Dimitris |
author_sort |
Hutter, Nils |
title |
Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models |
title_short |
Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models |
title_full |
Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models |
title_fullStr |
Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models |
title_full_unstemmed |
Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models |
title_sort |
scaling properties of arctic sea ice deformation in high-resolution viscous-plastic sea ice models |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/43391/ https://hdl.handle.net/10013/epic.49925 |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
EPIC3NASA Jet Propulsion Laboratory (JPL), USA |
op_relation |
Hutter, N. orcid:0000-0003-3450-9422 , Losch, M. orcid:0000-0002-3824-5244 and Menemenlis, D. (2016) Scaling properties of Arctic sea ice deformation in high-resolution viscous-plastic sea ice models , NASA Jet Propulsion Laboratory (JPL), USA . hdl:10013/epic.49925 |
_version_ |
1810292541490200576 |