Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery
Results examining variations in the ice extent along the Norwegian coastline based on the analysis of Moderate Resolution Imaging Spectroradiometer (MODIS) images from 2001 to 2019, February through May, are presented. A total of 386 fjords and coastal areas were outlined and grouped into ten region...
Published in: | Annals of Glaciology |
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Cambridge University Press
2020
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Online Access: | https://doi.org/10.1017/aog.2020.34 https://doaj.org/article/de483935eeba47449f974d82070a6cdd |
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ftdoajarticles:oai:doaj.org/article:de483935eeba47449f974d82070a6cdd 2023-05-15T13:29:29+02:00 Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery Megan O'Sadnick Chris Petrich Camilla Brekke Jofrid Skarðhamar 2020-09-01T00:00:00Z https://doi.org/10.1017/aog.2020.34 https://doaj.org/article/de483935eeba47449f974d82070a6cdd EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0260305520000348/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2020.34 0260-3055 1727-5644 https://doaj.org/article/de483935eeba47449f974d82070a6cdd Annals of Glaciology, Vol 61, Pp 210-226 (2020) Ice/atmosphere interactions remote sensing sea ice sea-ice growth and decay ice/ocean interactions Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.1017/aog.2020.34 2023-03-12T01:31:55Z Results examining variations in the ice extent along the Norwegian coastline based on the analysis of Moderate Resolution Imaging Spectroradiometer (MODIS) images from 2001 to 2019, February through May, are presented. A total of 386 fjords and coastal areas were outlined and grouped into ten regions to assess seasonal and long-term trends in ice extent. In addition, three fjords were examined to investigate how ice extent may vary over short distances (<100 km). Of the 386 outlined, 47 fjords/coastal areas held >5 km2 of ice at least once between 2001 and 2019. Over this span of time, no statistically significant trend in ice extent is found for all ten regions; however, variations between regions and years are evident. Ice extent is assessed through comparison to three weather variables – freezing degree days (FDD), daily new snowfall and daily freshwater supply from rainfall plus snowmelt. Six out of ten regions are significantly positively correlated (p < 0.05) to FDD. In addition, ice in two regions is significantly positively correlated to daily new snowfall, and in one region negatively correlated to rainfall plus snowmelt. The importance of fjord geometry and bathymetry as well as other weather variables including wind is discussed. Article in Journal/Newspaper Annals of Glaciology Arctic Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Annals of Glaciology 61 82 210 226 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ice/atmosphere interactions remote sensing sea ice sea-ice growth and decay ice/ocean interactions Meteorology. Climatology QC851-999 |
spellingShingle |
Ice/atmosphere interactions remote sensing sea ice sea-ice growth and decay ice/ocean interactions Meteorology. Climatology QC851-999 Megan O'Sadnick Chris Petrich Camilla Brekke Jofrid Skarðhamar Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery |
topic_facet |
Ice/atmosphere interactions remote sensing sea ice sea-ice growth and decay ice/ocean interactions Meteorology. Climatology QC851-999 |
description |
Results examining variations in the ice extent along the Norwegian coastline based on the analysis of Moderate Resolution Imaging Spectroradiometer (MODIS) images from 2001 to 2019, February through May, are presented. A total of 386 fjords and coastal areas were outlined and grouped into ten regions to assess seasonal and long-term trends in ice extent. In addition, three fjords were examined to investigate how ice extent may vary over short distances (<100 km). Of the 386 outlined, 47 fjords/coastal areas held >5 km2 of ice at least once between 2001 and 2019. Over this span of time, no statistically significant trend in ice extent is found for all ten regions; however, variations between regions and years are evident. Ice extent is assessed through comparison to three weather variables – freezing degree days (FDD), daily new snowfall and daily freshwater supply from rainfall plus snowmelt. Six out of ten regions are significantly positively correlated (p < 0.05) to FDD. In addition, ice in two regions is significantly positively correlated to daily new snowfall, and in one region negatively correlated to rainfall plus snowmelt. The importance of fjord geometry and bathymetry as well as other weather variables including wind is discussed. |
format |
Article in Journal/Newspaper |
author |
Megan O'Sadnick Chris Petrich Camilla Brekke Jofrid Skarðhamar |
author_facet |
Megan O'Sadnick Chris Petrich Camilla Brekke Jofrid Skarðhamar |
author_sort |
Megan O'Sadnick |
title |
Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery |
title_short |
Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery |
title_full |
Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery |
title_fullStr |
Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery |
title_full_unstemmed |
Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery |
title_sort |
ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from modis imagery |
publisher |
Cambridge University Press |
publishDate |
2020 |
url |
https://doi.org/10.1017/aog.2020.34 https://doaj.org/article/de483935eeba47449f974d82070a6cdd |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Annals of Glaciology Arctic Sea ice |
genre_facet |
Annals of Glaciology Arctic Sea ice |
op_source |
Annals of Glaciology, Vol 61, Pp 210-226 (2020) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0260305520000348/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2020.34 0260-3055 1727-5644 https://doaj.org/article/de483935eeba47449f974d82070a6cdd |
op_doi |
https://doi.org/10.1017/aog.2020.34 |
container_title |
Annals of Glaciology |
container_volume |
61 |
container_issue |
82 |
container_start_page |
210 |
op_container_end_page |
226 |
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1766000917075722240 |