Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data
Arctic lakes are sensitive to climate change, and the timing and duration of ice presence and absence (i.e., ice phenology) on the lake surface can be used as a climate indicator. In this study of Linnévatnet, one of the largest lakes on Svalbard, we compare inferences of lake ice duration from sate...
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ftdoajarticles:oai:doaj.org/article:2db68726945445b4964dcd83b2ac29dd 2023-05-15T14:59:57+02:00 Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data Samuel E. Tuttle Steven R. Roof Michael J. Retelle Alan Werner Grant E. Gunn Erin L. Bunting 2022-03-01T00:00:00Z https://doi.org/10.3390/rs14061311 https://doaj.org/article/2db68726945445b4964dcd83b2ac29dd EN eng MDPI AG https://www.mdpi.com/2072-4292/14/6/1311 https://doaj.org/toc/2072-4292 doi:10.3390/rs14061311 2072-4292 https://doaj.org/article/2db68726945445b4964dcd83b2ac29dd Remote Sensing, Vol 14, Iss 1311, p 1311 (2022) lake ice remote sensing Svalbard MODIS Sentinel-1 water temperature Science Q article 2022 ftdoajarticles https://doi.org/10.3390/rs14061311 2022-12-31T08:22:56Z Arctic lakes are sensitive to climate change, and the timing and duration of ice presence and absence (i.e., ice phenology) on the lake surface can be used as a climate indicator. In this study of Linnévatnet, one of the largest lakes on Svalbard, we compare inferences of lake ice duration from satellite data with continuously monitored lake water temperature and photographs from automatic cameras. Visible surface reflectance data from the moderate-resolution imaging spectroradiometer (MODIS) were used to observe the change in the lake-wide mean surface reflectance of Linnévatnet from 2003–2019, and smoothing splines were applied to the to determine the date of summer ice-off (also called “break-up end”—BUE). Similarly, BUE and fall ice-on (or “freeze-up end”—FUE) were determined from lake-wide mean time series of Sentinel-1 microwave backscatter from 2014–2019. Overall, the ice timing dates identified from the satellite observations agree well with the in-situ observations (RMSE values of approximately 2–7 days for BUE and FUE, depending on the method and in-situ dataset), lending confidence to the accuracy of remote sensing of lake ice phenology in remote Arctic regions. Our observations of Linnévatnet indicate that BUE dates do not have a significant trend, while FUE dates have been occurring approximately 1.5 days later per year during the study period. These results support an overall decrease in annual duration of lake ice cover in this part of Svalbard. Article in Journal/Newspaper Arctic Climate change Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Linnévatnet ENVELOPE(13.824,13.824,78.042,78.042) Kapp Linné ENVELOPE(13.621,13.621,78.063,78.063) Remote Sensing 14 6 1311 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
lake ice remote sensing Svalbard MODIS Sentinel-1 water temperature Science Q |
spellingShingle |
lake ice remote sensing Svalbard MODIS Sentinel-1 water temperature Science Q Samuel E. Tuttle Steven R. Roof Michael J. Retelle Alan Werner Grant E. Gunn Erin L. Bunting Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data |
topic_facet |
lake ice remote sensing Svalbard MODIS Sentinel-1 water temperature Science Q |
description |
Arctic lakes are sensitive to climate change, and the timing and duration of ice presence and absence (i.e., ice phenology) on the lake surface can be used as a climate indicator. In this study of Linnévatnet, one of the largest lakes on Svalbard, we compare inferences of lake ice duration from satellite data with continuously monitored lake water temperature and photographs from automatic cameras. Visible surface reflectance data from the moderate-resolution imaging spectroradiometer (MODIS) were used to observe the change in the lake-wide mean surface reflectance of Linnévatnet from 2003–2019, and smoothing splines were applied to the to determine the date of summer ice-off (also called “break-up end”—BUE). Similarly, BUE and fall ice-on (or “freeze-up end”—FUE) were determined from lake-wide mean time series of Sentinel-1 microwave backscatter from 2014–2019. Overall, the ice timing dates identified from the satellite observations agree well with the in-situ observations (RMSE values of approximately 2–7 days for BUE and FUE, depending on the method and in-situ dataset), lending confidence to the accuracy of remote sensing of lake ice phenology in remote Arctic regions. Our observations of Linnévatnet indicate that BUE dates do not have a significant trend, while FUE dates have been occurring approximately 1.5 days later per year during the study period. These results support an overall decrease in annual duration of lake ice cover in this part of Svalbard. |
format |
Article in Journal/Newspaper |
author |
Samuel E. Tuttle Steven R. Roof Michael J. Retelle Alan Werner Grant E. Gunn Erin L. Bunting |
author_facet |
Samuel E. Tuttle Steven R. Roof Michael J. Retelle Alan Werner Grant E. Gunn Erin L. Bunting |
author_sort |
Samuel E. Tuttle |
title |
Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data |
title_short |
Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data |
title_full |
Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data |
title_fullStr |
Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data |
title_full_unstemmed |
Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data |
title_sort |
evaluation of satellite-derived estimates of lake ice cover timing on linnévatnet, kapp linné, svalbard using in-situ data |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14061311 https://doaj.org/article/2db68726945445b4964dcd83b2ac29dd |
long_lat |
ENVELOPE(13.824,13.824,78.042,78.042) ENVELOPE(13.621,13.621,78.063,78.063) |
geographic |
Arctic Svalbard Linnévatnet Kapp Linné |
geographic_facet |
Arctic Svalbard Linnévatnet Kapp Linné |
genre |
Arctic Climate change Svalbard |
genre_facet |
Arctic Climate change Svalbard |
op_source |
Remote Sensing, Vol 14, Iss 1311, p 1311 (2022) |
op_relation |
https://www.mdpi.com/2072-4292/14/6/1311 https://doaj.org/toc/2072-4292 doi:10.3390/rs14061311 2072-4292 https://doaj.org/article/2db68726945445b4964dcd83b2ac29dd |
op_doi |
https://doi.org/10.3390/rs14061311 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
6 |
container_start_page |
1311 |
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1766332059664515072 |