Melt pond distribution and geometry in high Arctic sea ice derived from aerial investigations
Aerial photography was conducted in the high Arctic Ocean during a Chinese research expedition in summer 2010. By partitioning the images into three distinct surface categories (sea ice/snow, water and melt ponds), the areal fraction of each category, ice concentration and the size and geometry of i...
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ftdoajarticles:oai:doaj.org/article:3470374773614503b20c54154636c1e6 2023-05-15T13:29:36+02:00 Melt pond distribution and geometry in high Arctic sea ice derived from aerial investigations W. Huang P. Lu R. Lei H. Xie Z. Li 2016-09-01T00:00:00Z https://doi.org/10.1017/aog.2016.30 https://doaj.org/article/3470374773614503b20c54154636c1e6 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0260305516000306/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2016.30 0260-3055 1727-5644 https://doaj.org/article/3470374773614503b20c54154636c1e6 Annals of Glaciology, Vol 57, Pp 105-118 (2016) aerial photography geometry high Arctic Ocean melt pond sea ice Meteorology. Climatology QC851-999 article 2016 ftdoajarticles https://doi.org/10.1017/aog.2016.30 2023-03-12T01:31:57Z Aerial photography was conducted in the high Arctic Ocean during a Chinese research expedition in summer 2010. By partitioning the images into three distinct surface categories (sea ice/snow, water and melt ponds), the areal fraction of each category, ice concentration and the size and geometry of individual melt ponds, are determined with high-spatial resolution. The ice concentration and melt pond coverage have large spatial deviations between flights and even between images from the marginal ice zone to the pack ice zone in the central Arctic. Ice concentration and pond coverage over high Arctic (from 84°N to north) was ~75% and ~6.8%, respectively, providing ‘ground truth’ for the unusual transpolar reduction strip of ice indicated concurrently by AMSR-E data and for the regions (north of 88°N) where no passive microwave sensors can cover. Melt pond size and shape distributions are examined in terms of pond area (S), perimeter (P), mean caliper dimension (MCD) (L), roundness (R), convex degree (C), the ratio of P/S and fractal dimension (D). Power-law relationships are developed between pond size and number. Some general trends in geometric metrics are identified as a function of pond area including R, C, P/S and D. The scale separation of pond complexity is demonstrated by analyzing area-perimeter data. The results will potentially help the modelling of melt pond evolution and the determination of heterogeneity of under-ice transmitted light fields. Article in Journal/Newspaper Annals of Glaciology Arctic Arctic Ocean Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Annals of Glaciology 57 73 105 118 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
aerial photography geometry high Arctic Ocean melt pond sea ice Meteorology. Climatology QC851-999 |
spellingShingle |
aerial photography geometry high Arctic Ocean melt pond sea ice Meteorology. Climatology QC851-999 W. Huang P. Lu R. Lei H. Xie Z. Li Melt pond distribution and geometry in high Arctic sea ice derived from aerial investigations |
topic_facet |
aerial photography geometry high Arctic Ocean melt pond sea ice Meteorology. Climatology QC851-999 |
description |
Aerial photography was conducted in the high Arctic Ocean during a Chinese research expedition in summer 2010. By partitioning the images into three distinct surface categories (sea ice/snow, water and melt ponds), the areal fraction of each category, ice concentration and the size and geometry of individual melt ponds, are determined with high-spatial resolution. The ice concentration and melt pond coverage have large spatial deviations between flights and even between images from the marginal ice zone to the pack ice zone in the central Arctic. Ice concentration and pond coverage over high Arctic (from 84°N to north) was ~75% and ~6.8%, respectively, providing ‘ground truth’ for the unusual transpolar reduction strip of ice indicated concurrently by AMSR-E data and for the regions (north of 88°N) where no passive microwave sensors can cover. Melt pond size and shape distributions are examined in terms of pond area (S), perimeter (P), mean caliper dimension (MCD) (L), roundness (R), convex degree (C), the ratio of P/S and fractal dimension (D). Power-law relationships are developed between pond size and number. Some general trends in geometric metrics are identified as a function of pond area including R, C, P/S and D. The scale separation of pond complexity is demonstrated by analyzing area-perimeter data. The results will potentially help the modelling of melt pond evolution and the determination of heterogeneity of under-ice transmitted light fields. |
format |
Article in Journal/Newspaper |
author |
W. Huang P. Lu R. Lei H. Xie Z. Li |
author_facet |
W. Huang P. Lu R. Lei H. Xie Z. Li |
author_sort |
W. Huang |
title |
Melt pond distribution and geometry in high Arctic sea ice derived from aerial investigations |
title_short |
Melt pond distribution and geometry in high Arctic sea ice derived from aerial investigations |
title_full |
Melt pond distribution and geometry in high Arctic sea ice derived from aerial investigations |
title_fullStr |
Melt pond distribution and geometry in high Arctic sea ice derived from aerial investigations |
title_full_unstemmed |
Melt pond distribution and geometry in high Arctic sea ice derived from aerial investigations |
title_sort |
melt pond distribution and geometry in high arctic sea ice derived from aerial investigations |
publisher |
Cambridge University Press |
publishDate |
2016 |
url |
https://doi.org/10.1017/aog.2016.30 https://doaj.org/article/3470374773614503b20c54154636c1e6 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Annals of Glaciology Arctic Arctic Ocean Sea ice |
genre_facet |
Annals of Glaciology Arctic Arctic Ocean Sea ice |
op_source |
Annals of Glaciology, Vol 57, Pp 105-118 (2016) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0260305516000306/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2016.30 0260-3055 1727-5644 https://doaj.org/article/3470374773614503b20c54154636c1e6 |
op_doi |
https://doi.org/10.1017/aog.2016.30 |
container_title |
Annals of Glaciology |
container_volume |
57 |
container_issue |
73 |
container_start_page |
105 |
op_container_end_page |
118 |
_version_ |
1766001465399181312 |