IceMap250—Automatic 250 m Sea Ice Extent Mapping Using MODIS Data
The sea ice cover in the North evolves at a rapid rate. To adequately monitor this evolution, tools with high temporal and spatial resolution are needed. This paper presents IceMap250, an automatic sea ice extent mapping algorithm using MODIS reflective/emissive bands. Hybrid cloud-masking using bot...
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ftmdpi:oai:mdpi.com:/2072-4292/9/1/70/ 2023-08-20T04:04:41+02:00 IceMap250—Automatic 250 m Sea Ice Extent Mapping Using MODIS Data Charles Gignac Monique Bernier Karem Chokmani Jimmy Poulin agris 2017-01-13 application/pdf https://doi.org/10.3390/rs9010070 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs9010070 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 9; Issue 1; Pages: 70 sea ice Hudson Bay algorithm MODIS downscaling Arctic mapping Text 2017 ftmdpi https://doi.org/10.3390/rs9010070 2023-07-31T21:01:48Z The sea ice cover in the North evolves at a rapid rate. To adequately monitor this evolution, tools with high temporal and spatial resolution are needed. This paper presents IceMap250, an automatic sea ice extent mapping algorithm using MODIS reflective/emissive bands. Hybrid cloud-masking using both the MOD35 mask and a visibility mask, combined with downscaling of Bands 3–7 to 250 m, are utilized to delineate sea ice extent using a decision tree approach. IceMap250 was tested on scenes from the freeze-up, stable cover, and melt seasons in the Hudson Bay complex, in Northeastern Canada. IceMap250 first product is a daily composite sea ice presence map at 250 m. Validation based on comparisons with photo-interpreted ground-truth show the ability of the algorithm to achieve high classification accuracy, with kappa values systematically over 90%. IceMap250 second product is a weekly clear sky map that provides a synthesis of 7 days of daily composite maps. This map, produced using a majority filter, makes the sea ice presence map even more accurate by filtering out the effects of isolated classification errors. The synthesis maps show spatial consistency through time when compared to passive microwave and national ice services maps. Text Arctic Hudson Bay Sea ice MDPI Open Access Publishing Arctic Canada Hudson Hudson Bay Remote Sensing 9 1 70 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
sea ice Hudson Bay algorithm MODIS downscaling Arctic mapping |
spellingShingle |
sea ice Hudson Bay algorithm MODIS downscaling Arctic mapping Charles Gignac Monique Bernier Karem Chokmani Jimmy Poulin IceMap250—Automatic 250 m Sea Ice Extent Mapping Using MODIS Data |
topic_facet |
sea ice Hudson Bay algorithm MODIS downscaling Arctic mapping |
description |
The sea ice cover in the North evolves at a rapid rate. To adequately monitor this evolution, tools with high temporal and spatial resolution are needed. This paper presents IceMap250, an automatic sea ice extent mapping algorithm using MODIS reflective/emissive bands. Hybrid cloud-masking using both the MOD35 mask and a visibility mask, combined with downscaling of Bands 3–7 to 250 m, are utilized to delineate sea ice extent using a decision tree approach. IceMap250 was tested on scenes from the freeze-up, stable cover, and melt seasons in the Hudson Bay complex, in Northeastern Canada. IceMap250 first product is a daily composite sea ice presence map at 250 m. Validation based on comparisons with photo-interpreted ground-truth show the ability of the algorithm to achieve high classification accuracy, with kappa values systematically over 90%. IceMap250 second product is a weekly clear sky map that provides a synthesis of 7 days of daily composite maps. This map, produced using a majority filter, makes the sea ice presence map even more accurate by filtering out the effects of isolated classification errors. The synthesis maps show spatial consistency through time when compared to passive microwave and national ice services maps. |
format |
Text |
author |
Charles Gignac Monique Bernier Karem Chokmani Jimmy Poulin |
author_facet |
Charles Gignac Monique Bernier Karem Chokmani Jimmy Poulin |
author_sort |
Charles Gignac |
title |
IceMap250—Automatic 250 m Sea Ice Extent Mapping Using MODIS Data |
title_short |
IceMap250—Automatic 250 m Sea Ice Extent Mapping Using MODIS Data |
title_full |
IceMap250—Automatic 250 m Sea Ice Extent Mapping Using MODIS Data |
title_fullStr |
IceMap250—Automatic 250 m Sea Ice Extent Mapping Using MODIS Data |
title_full_unstemmed |
IceMap250—Automatic 250 m Sea Ice Extent Mapping Using MODIS Data |
title_sort |
icemap250—automatic 250 m sea ice extent mapping using modis data |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2017 |
url |
https://doi.org/10.3390/rs9010070 |
op_coverage |
agris |
geographic |
Arctic Canada Hudson Hudson Bay |
geographic_facet |
Arctic Canada Hudson Hudson Bay |
genre |
Arctic Hudson Bay Sea ice |
genre_facet |
Arctic Hudson Bay Sea ice |
op_source |
Remote Sensing; Volume 9; Issue 1; Pages: 70 |
op_relation |
https://dx.doi.org/10.3390/rs9010070 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs9010070 |
container_title |
Remote Sensing |
container_volume |
9 |
container_issue |
1 |
container_start_page |
70 |
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1774715057313153024 |