Characterizing the size and shape of sea ice floes
International audience Monitoring drift ice in the Arctic and Antarctic regions directly and by remote sensing is important for the study of climate, but a unified modeling framework is lacking. Hence, interpretation of the data, as well as the decision of what to measure, represent a challenge for...
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ftsorbonneuniv:oai:HAL:hal-01223262v1 2024-05-12T07:54:45+00:00 Characterizing the size and shape of sea ice floes Gherardi, Marco Cosentino Lagomarsino, Marco Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB) Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN) Istituto Nazionale di Fisica Nucleare (INFN) Biologie Computationnelle et Quantitative = Laboratory of Computational and Quantitative Biology (LCQB) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Biologie Paris Seine (IBPS) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 2015-05-27 https://hal.sorbonne-universite.fr/hal-01223262 https://hal.sorbonne-universite.fr/hal-01223262/document https://hal.sorbonne-universite.fr/hal-01223262/file/srep10226.pdf https://doi.org/10.1038/srep10226 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/srep10226 hal-01223262 https://hal.sorbonne-universite.fr/hal-01223262 https://hal.sorbonne-universite.fr/hal-01223262/document https://hal.sorbonne-universite.fr/hal-01223262/file/srep10226.pdf doi:10.1038/srep10226 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.sorbonne-universite.fr/hal-01223262 Scientific Reports, 2015, 5, pp.10226. ⟨10.1038/srep10226⟩ Cryospheric science Statistical physics thermodynamics and nonlinear dynamics [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2015 ftsorbonneuniv https://doi.org/10.1038/srep10226 2024-04-18T03:53:37Z International audience Monitoring drift ice in the Arctic and Antarctic regions directly and by remote sensing is important for the study of climate, but a unified modeling framework is lacking. Hence, interpretation of the data, as well as the decision of what to measure, represent a challenge for different fields of science. To address this point, we analyzed, using statistical physics tools, satellite images of sea ice from four different locations in both the northern and southern hemispheres, and measured the size and the elongation of ice floes (floating pieces of ice). We find that (i) floe size follows a distribution that can be characterized with good approximation by a single length scale , which we discuss in the framework of stochastic fragmentation models, and (ii) the deviation of their shape from circularity is reproduced with remarkable precision by a geometric model of coalescence by freezing, based on random Voronoi tessellations, with a single free parameter expressing the shape disorder. Although the physical interpretations remain open, this advocates the parameters and as two independent indicators of the environment in the polar regions, which are easily accessible by remote sensing. Article in Journal/Newspaper Antarc* Antarctic Arctic Sea ice HAL Sorbonne Université Antarctic Arctic Scientific Reports 5 1 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
Cryospheric science Statistical physics thermodynamics and nonlinear dynamics [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
spellingShingle |
Cryospheric science Statistical physics thermodynamics and nonlinear dynamics [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Gherardi, Marco Cosentino Lagomarsino, Marco Characterizing the size and shape of sea ice floes |
topic_facet |
Cryospheric science Statistical physics thermodynamics and nonlinear dynamics [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience Monitoring drift ice in the Arctic and Antarctic regions directly and by remote sensing is important for the study of climate, but a unified modeling framework is lacking. Hence, interpretation of the data, as well as the decision of what to measure, represent a challenge for different fields of science. To address this point, we analyzed, using statistical physics tools, satellite images of sea ice from four different locations in both the northern and southern hemispheres, and measured the size and the elongation of ice floes (floating pieces of ice). We find that (i) floe size follows a distribution that can be characterized with good approximation by a single length scale , which we discuss in the framework of stochastic fragmentation models, and (ii) the deviation of their shape from circularity is reproduced with remarkable precision by a geometric model of coalescence by freezing, based on random Voronoi tessellations, with a single free parameter expressing the shape disorder. Although the physical interpretations remain open, this advocates the parameters and as two independent indicators of the environment in the polar regions, which are easily accessible by remote sensing. |
author2 |
Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB) Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN) Istituto Nazionale di Fisica Nucleare (INFN) Biologie Computationnelle et Quantitative = Laboratory of Computational and Quantitative Biology (LCQB) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Biologie Paris Seine (IBPS) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Gherardi, Marco Cosentino Lagomarsino, Marco |
author_facet |
Gherardi, Marco Cosentino Lagomarsino, Marco |
author_sort |
Gherardi, Marco |
title |
Characterizing the size and shape of sea ice floes |
title_short |
Characterizing the size and shape of sea ice floes |
title_full |
Characterizing the size and shape of sea ice floes |
title_fullStr |
Characterizing the size and shape of sea ice floes |
title_full_unstemmed |
Characterizing the size and shape of sea ice floes |
title_sort |
characterizing the size and shape of sea ice floes |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.sorbonne-universite.fr/hal-01223262 https://hal.sorbonne-universite.fr/hal-01223262/document https://hal.sorbonne-universite.fr/hal-01223262/file/srep10226.pdf https://doi.org/10.1038/srep10226 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Sea ice |
op_source |
ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.sorbonne-universite.fr/hal-01223262 Scientific Reports, 2015, 5, pp.10226. ⟨10.1038/srep10226⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/srep10226 hal-01223262 https://hal.sorbonne-universite.fr/hal-01223262 https://hal.sorbonne-universite.fr/hal-01223262/document https://hal.sorbonne-universite.fr/hal-01223262/file/srep10226.pdf doi:10.1038/srep10226 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/srep10226 |
container_title |
Scientific Reports |
container_volume |
5 |
container_issue |
1 |
_version_ |
1798851876727291904 |