Investigating High-Resolution Spatial Wave Patterns on the Canadian Beaufort Shelf Using Synthetic Aperture Radar Imagery at Herschel Island, Qikiqtaruk, Yukon, Canada
The Arctic is experiencing the greatest increase in air temperature on Earth. This significant climatic change is leading to a significant positive trend of increasing wave heights and greater coastal erosion. This in turn effects local economies and ecosystems. Increasing wave energy is one of the...
Published in: | Remote Sensing |
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2023
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ftunivkiel:oai:macau.uni-kiel.de:macau_mods_00004170 2024-06-23T07:49:54+00:00 Investigating High-Resolution Spatial Wave Patterns on the Canadian Beaufort Shelf Using Synthetic Aperture Radar Imagery at Herschel Island, Qikiqtaruk, Yukon, Canada Brembach, Kerstin Pleskachevsky, Andrey Lantuit, Hugues 2023 https://doi.org/10.3390/rs15194753 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2023-00841-3 https://macau.uni-kiel.de/receive/macau_mods_00004170 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005330/remotesensing-15-04753.pdf eng eng Remote Sensing -- 2072-4292 https://doi.org/10.3390/rs15194753 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2023-00841-3 https://macau.uni-kiel.de/receive/macau_mods_00004170 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005330/remotesensing-15-04753.pdf https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess article ScholarlyArticle Published Version ddc:333.7 SAR remote sensing significant wave height Arctic Ocean nearshore TerraSAR-X TanDEM-X article Text doc-type:Article 2023 ftunivkiel https://doi.org/10.3390/rs15194753 2024-06-12T14:18:00Z The Arctic is experiencing the greatest increase in air temperature on Earth. This significant climatic change is leading to a significant positive trend of increasing wave heights and greater coastal erosion. This in turn effects local economies and ecosystems. Increasing wave energy is one of the main drivers of this alarming trend. However, the data on spatial and temporal patterns of wave heights in the Arctic are either coarse, interpolated or limited to point measurements. The aim of this study is to overcome this shortcoming by using remote sensing data. In this study, the Synthetic Aperture Radar (SAR) satellite TerraSAR-X (TS-X) and TanDEM-X (TD-X) imagery are used to obtain sea state information with a high spatial resolution in Arctic nearshore waters in the Canadian Beaufort Sea. From the entire archive of the TS-X/TD-X StripMap mode with coverage around 30 km × 50 km acquired between 2009 and 2020 around Herschel Island, Qikiqtaruk (HIQ), all the ice-free scenes were processed. The resulting dataset of 175 collocated scenes was used to map the significant wave height (Hs) and to link spatial and temporal patterns to local coastal processes. Sea state parameters are estimated in raster format with a 600 m step using the empirical algorithm CWAVE_EX. The statistics of the Hs were aggregated according to spatial variability, seasonality and wind conditions. The results show that the spatial wave climate is clearly related to the dominant wind regime and seasonality. For instance, the aggregation of all the scenes recorded in July between 2009 and 2020 results in an average of 0.82 m Hs while in October the average Hs is almost 0.40 m higher. The analysis by wind direction shows that fetch length and wind speed are likely the most important variables influencing the spatial variability. A larger fetch under NW conditions results in a mean wave height of 0.92 m, while waves generated under ESE conditions are lower at 0.81 m on average. Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Herschel Herschel Island Yukon MACAU: Open Access Repository of Kiel University Arctic Arctic Ocean Beaufort Shelf ENVELOPE(-142.500,-142.500,70.000,70.000) Canada Herschel Island ENVELOPE(-139.089,-139.089,69.583,69.583) Yukon Remote Sensing 15 19 4753 |
institution |
Open Polar |
collection |
MACAU: Open Access Repository of Kiel University |
op_collection_id |
ftunivkiel |
language |
English |
topic |
article ScholarlyArticle Published Version ddc:333.7 SAR remote sensing significant wave height Arctic Ocean nearshore TerraSAR-X TanDEM-X |
spellingShingle |
article ScholarlyArticle Published Version ddc:333.7 SAR remote sensing significant wave height Arctic Ocean nearshore TerraSAR-X TanDEM-X Brembach, Kerstin Pleskachevsky, Andrey Lantuit, Hugues Investigating High-Resolution Spatial Wave Patterns on the Canadian Beaufort Shelf Using Synthetic Aperture Radar Imagery at Herschel Island, Qikiqtaruk, Yukon, Canada |
topic_facet |
article ScholarlyArticle Published Version ddc:333.7 SAR remote sensing significant wave height Arctic Ocean nearshore TerraSAR-X TanDEM-X |
description |
The Arctic is experiencing the greatest increase in air temperature on Earth. This significant climatic change is leading to a significant positive trend of increasing wave heights and greater coastal erosion. This in turn effects local economies and ecosystems. Increasing wave energy is one of the main drivers of this alarming trend. However, the data on spatial and temporal patterns of wave heights in the Arctic are either coarse, interpolated or limited to point measurements. The aim of this study is to overcome this shortcoming by using remote sensing data. In this study, the Synthetic Aperture Radar (SAR) satellite TerraSAR-X (TS-X) and TanDEM-X (TD-X) imagery are used to obtain sea state information with a high spatial resolution in Arctic nearshore waters in the Canadian Beaufort Sea. From the entire archive of the TS-X/TD-X StripMap mode with coverage around 30 km × 50 km acquired between 2009 and 2020 around Herschel Island, Qikiqtaruk (HIQ), all the ice-free scenes were processed. The resulting dataset of 175 collocated scenes was used to map the significant wave height (Hs) and to link spatial and temporal patterns to local coastal processes. Sea state parameters are estimated in raster format with a 600 m step using the empirical algorithm CWAVE_EX. The statistics of the Hs were aggregated according to spatial variability, seasonality and wind conditions. The results show that the spatial wave climate is clearly related to the dominant wind regime and seasonality. For instance, the aggregation of all the scenes recorded in July between 2009 and 2020 results in an average of 0.82 m Hs while in October the average Hs is almost 0.40 m higher. The analysis by wind direction shows that fetch length and wind speed are likely the most important variables influencing the spatial variability. A larger fetch under NW conditions results in a mean wave height of 0.92 m, while waves generated under ESE conditions are lower at 0.81 m on average. |
format |
Article in Journal/Newspaper |
author |
Brembach, Kerstin Pleskachevsky, Andrey Lantuit, Hugues |
author_facet |
Brembach, Kerstin Pleskachevsky, Andrey Lantuit, Hugues |
author_sort |
Brembach, Kerstin |
title |
Investigating High-Resolution Spatial Wave Patterns on the Canadian Beaufort Shelf Using Synthetic Aperture Radar Imagery at Herschel Island, Qikiqtaruk, Yukon, Canada |
title_short |
Investigating High-Resolution Spatial Wave Patterns on the Canadian Beaufort Shelf Using Synthetic Aperture Radar Imagery at Herschel Island, Qikiqtaruk, Yukon, Canada |
title_full |
Investigating High-Resolution Spatial Wave Patterns on the Canadian Beaufort Shelf Using Synthetic Aperture Radar Imagery at Herschel Island, Qikiqtaruk, Yukon, Canada |
title_fullStr |
Investigating High-Resolution Spatial Wave Patterns on the Canadian Beaufort Shelf Using Synthetic Aperture Radar Imagery at Herschel Island, Qikiqtaruk, Yukon, Canada |
title_full_unstemmed |
Investigating High-Resolution Spatial Wave Patterns on the Canadian Beaufort Shelf Using Synthetic Aperture Radar Imagery at Herschel Island, Qikiqtaruk, Yukon, Canada |
title_sort |
investigating high-resolution spatial wave patterns on the canadian beaufort shelf using synthetic aperture radar imagery at herschel island, qikiqtaruk, yukon, canada |
publishDate |
2023 |
url |
https://doi.org/10.3390/rs15194753 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2023-00841-3 https://macau.uni-kiel.de/receive/macau_mods_00004170 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005330/remotesensing-15-04753.pdf |
long_lat |
ENVELOPE(-142.500,-142.500,70.000,70.000) ENVELOPE(-139.089,-139.089,69.583,69.583) |
geographic |
Arctic Arctic Ocean Beaufort Shelf Canada Herschel Island Yukon |
geographic_facet |
Arctic Arctic Ocean Beaufort Shelf Canada Herschel Island Yukon |
genre |
Arctic Arctic Ocean Beaufort Sea Herschel Herschel Island Yukon |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Herschel Herschel Island Yukon |
op_relation |
Remote Sensing -- 2072-4292 https://doi.org/10.3390/rs15194753 https://nbn-resolving.org/urn:nbn:de:gbv:8:3-2023-00841-3 https://macau.uni-kiel.de/receive/macau_mods_00004170 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/macau_derivate_00005330/remotesensing-15-04753.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/rs15194753 |
container_title |
Remote Sensing |
container_volume |
15 |
container_issue |
19 |
container_start_page |
4753 |
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1802640612706484224 |