DataSheet1_Sizes and Shapes of Sea Ice Floes Broken by Waves–A Case Study From the East Antarctic Coast.PDF
The floe size distribution (FSD) is an important characteristics of sea ice, influencing several physical processes that take place in the oceanic and atmospheric boundary layers under/over sea ice, as well as within sea ice itself. Through complex feedback loops involving those processes, FSD might...
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ftsmithonian:oai:figshare.com:article/14603559 2023-05-15T14:00:01+02:00 DataSheet1_Sizes and Shapes of Sea Ice Floes Broken by Waves–A Case Study From the East Antarctic Coast.PDF Agnieszka Herman (10807890) Marta Wenta (10807893) Sukun Cheng (10807896) 2021-05-17T04:52:10Z https://doi.org/10.3389/feart.2021.655977.s001 unknown https://figshare.com/articles/dataset/DataSheet1_Sizes_and_Shapes_of_Sea_Ice_Floes_Broken_by_Waves_A_Case_Study_From_the_East_Antarctic_Coast_PDF/14603559 doi:10.3389/feart.2021.655977.s001 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change sea ice floe size distribution sea ice breaking sea ice-waves interactions satellite imagery East Antarctic coast Dataset 2021 ftsmithonian https://doi.org/10.3389/feart.2021.655977.s001 2021-05-21T14:43:48Z The floe size distribution (FSD) is an important characteristics of sea ice, influencing several physical processes that take place in the oceanic and atmospheric boundary layers under/over sea ice, as well as within sea ice itself. Through complex feedback loops involving those processes, FSD might modify the short-term and seasonal evolution of the sea ice cover, and therefore significant effort is undertaken by the scientific community to better understand FSD-related effects and to include them in sea ice models. An important part of that effort is analyzing the FSD properties and variability in different ice and forcing conditions, based on airborne and satellite imagery. In this work we analyze a very high resolution (pixel size: 0.3 m) satellite image of sea ice from a location off the East Antarctic coast (65.6°S, 101.9°E), acquired on February 16, 2019. Contrary to most previous studies, the ice floes in the image have angular, polygonal shapes and a narrow size distribution. We show that the observed FSD can be represented as a weighted sum of two probability distributions, a Gaussian and a tapered power law, with the Gaussian part clearly dominating in the size range of floes that contribute over 90% to the total sea ice surface area. Based on an analysis of the weather, wave and ice conditions in the period preceding the day in question, we discuss the most probable scenarios that led to the breakup of landfast ice into floes visible in the image. Finally, theoretical arguments backed up by a series of numerical simulations of wave propagation in sea ice performed with a scattering model based on the Matched Eigenfunction Expansion Method are used to show that the observed dominating floe size in the three different regions of the image (18, 13 and 51 m, respectively) agree with those expected as a result of wave-induced breaking of landfast ice. Dataset Antarc* Antarctic Sea ice Unknown Antarctic |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change sea ice floe size distribution sea ice breaking sea ice-waves interactions satellite imagery East Antarctic coast |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change sea ice floe size distribution sea ice breaking sea ice-waves interactions satellite imagery East Antarctic coast Agnieszka Herman (10807890) Marta Wenta (10807893) Sukun Cheng (10807896) DataSheet1_Sizes and Shapes of Sea Ice Floes Broken by Waves–A Case Study From the East Antarctic Coast.PDF |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change sea ice floe size distribution sea ice breaking sea ice-waves interactions satellite imagery East Antarctic coast |
description |
The floe size distribution (FSD) is an important characteristics of sea ice, influencing several physical processes that take place in the oceanic and atmospheric boundary layers under/over sea ice, as well as within sea ice itself. Through complex feedback loops involving those processes, FSD might modify the short-term and seasonal evolution of the sea ice cover, and therefore significant effort is undertaken by the scientific community to better understand FSD-related effects and to include them in sea ice models. An important part of that effort is analyzing the FSD properties and variability in different ice and forcing conditions, based on airborne and satellite imagery. In this work we analyze a very high resolution (pixel size: 0.3 m) satellite image of sea ice from a location off the East Antarctic coast (65.6°S, 101.9°E), acquired on February 16, 2019. Contrary to most previous studies, the ice floes in the image have angular, polygonal shapes and a narrow size distribution. We show that the observed FSD can be represented as a weighted sum of two probability distributions, a Gaussian and a tapered power law, with the Gaussian part clearly dominating in the size range of floes that contribute over 90% to the total sea ice surface area. Based on an analysis of the weather, wave and ice conditions in the period preceding the day in question, we discuss the most probable scenarios that led to the breakup of landfast ice into floes visible in the image. Finally, theoretical arguments backed up by a series of numerical simulations of wave propagation in sea ice performed with a scattering model based on the Matched Eigenfunction Expansion Method are used to show that the observed dominating floe size in the three different regions of the image (18, 13 and 51 m, respectively) agree with those expected as a result of wave-induced breaking of landfast ice. |
format |
Dataset |
author |
Agnieszka Herman (10807890) Marta Wenta (10807893) Sukun Cheng (10807896) |
author_facet |
Agnieszka Herman (10807890) Marta Wenta (10807893) Sukun Cheng (10807896) |
author_sort |
Agnieszka Herman (10807890) |
title |
DataSheet1_Sizes and Shapes of Sea Ice Floes Broken by Waves–A Case Study From the East Antarctic Coast.PDF |
title_short |
DataSheet1_Sizes and Shapes of Sea Ice Floes Broken by Waves–A Case Study From the East Antarctic Coast.PDF |
title_full |
DataSheet1_Sizes and Shapes of Sea Ice Floes Broken by Waves–A Case Study From the East Antarctic Coast.PDF |
title_fullStr |
DataSheet1_Sizes and Shapes of Sea Ice Floes Broken by Waves–A Case Study From the East Antarctic Coast.PDF |
title_full_unstemmed |
DataSheet1_Sizes and Shapes of Sea Ice Floes Broken by Waves–A Case Study From the East Antarctic Coast.PDF |
title_sort |
datasheet1_sizes and shapes of sea ice floes broken by waves–a case study from the east antarctic coast.pdf |
publishDate |
2021 |
url |
https://doi.org/10.3389/feart.2021.655977.s001 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_relation |
https://figshare.com/articles/dataset/DataSheet1_Sizes_and_Shapes_of_Sea_Ice_Floes_Broken_by_Waves_A_Case_Study_From_the_East_Antarctic_Coast_PDF/14603559 doi:10.3389/feart.2021.655977.s001 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2021.655977.s001 |
_version_ |
1766268995535634432 |