Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series
Arctic coasts, which feature land-ocean transport of freshwater, sediments, and other terrestrial material, are impacted by climate change, including increased temperatures, melting glaciers, changes in precipitation and runoff. These trends are assumed to affect productivity in fjordic estuaries. H...
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Online Access: | https://hdl.handle.net/10037/26964 https://doi.org/10.3390/rs14133123 |
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ftunivtroemsoe:oai:munin.uit.no:10037/26964 2023-05-15T13:05:52+02:00 Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series Walch, Daniela M. R. Singh, Rakesh K. Søreide, Janne E. Lantuit, Hugues Poste, Amanda 2022-06-29 https://hdl.handle.net/10037/26964 https://doi.org/10.3390/rs14133123 eng eng MDPI Remote Sensing info:eu-repo/grantAgreement/EC/SOCIETAL CHALLENGES /773421/EU/Permafrost thaw and the changing arctic coast: science for socio-economic adaptation/Nunataryuk/ Walch D, Singh, Søreide, Lantuit, Poste. Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series. Remote Sensing. 2022;14(13) FRIDAID 2051173 doi:10.3390/rs14133123 2072-4292 https://hdl.handle.net/10037/26964 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 CC-BY Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.3390/rs14133123 2022-10-05T23:00:52Z Arctic coasts, which feature land-ocean transport of freshwater, sediments, and other terrestrial material, are impacted by climate change, including increased temperatures, melting glaciers, changes in precipitation and runoff. These trends are assumed to affect productivity in fjordic estuaries. However, the spatial extent and temporal variation of the freshwater-driven darkening of fjords remain unresolved. The present study illustrates the spatio-temporal variability of suspended particulate matter (SPM) in the Adventfjorden estuary, Svalbard, using in-situ field campaigns and ocean colour remote sensing (OCRS) via high-resolution Sentinel-2 imagery. To compute SPM concentration (CSPMsat), a semi-analytical algorithm was regionally calibrated using local in-situ data, which improved the accuracy of satellite-derived SPM concentration by ~20% (MRD). Analysis of SPM concentration for two consecutive years (2019, 2020) revealed strong seasonality of SPM in Adventfjorden. Highest estimated SPM concentrations and river plume extent (% of fjord with CSPMsat > 30 mg L−1) occurred during June, July, and August. Concurrently, we observed a strong relationship between river plume extent and average air temperature over the 24 h prior to the observation (R2 = 0.69). Considering predicted changes to environmental conditions in the Arctic region, this study highlights the importance of the rapidly changing environmental parameters and the significance of remote sensing in analysing fluxes in light attenuating particles, especially in the coastal Arctic Ocean. Article in Journal/Newspaper Adventfjorden Arctic Arctic Arctic Ocean Climate change Svalbard University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Svalbard Adventfjorden ENVELOPE(15.515,15.515,78.258,78.258) Remote Sensing 14 13 3123 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
Arctic coasts, which feature land-ocean transport of freshwater, sediments, and other terrestrial material, are impacted by climate change, including increased temperatures, melting glaciers, changes in precipitation and runoff. These trends are assumed to affect productivity in fjordic estuaries. However, the spatial extent and temporal variation of the freshwater-driven darkening of fjords remain unresolved. The present study illustrates the spatio-temporal variability of suspended particulate matter (SPM) in the Adventfjorden estuary, Svalbard, using in-situ field campaigns and ocean colour remote sensing (OCRS) via high-resolution Sentinel-2 imagery. To compute SPM concentration (CSPMsat), a semi-analytical algorithm was regionally calibrated using local in-situ data, which improved the accuracy of satellite-derived SPM concentration by ~20% (MRD). Analysis of SPM concentration for two consecutive years (2019, 2020) revealed strong seasonality of SPM in Adventfjorden. Highest estimated SPM concentrations and river plume extent (% of fjord with CSPMsat > 30 mg L−1) occurred during June, July, and August. Concurrently, we observed a strong relationship between river plume extent and average air temperature over the 24 h prior to the observation (R2 = 0.69). Considering predicted changes to environmental conditions in the Arctic region, this study highlights the importance of the rapidly changing environmental parameters and the significance of remote sensing in analysing fluxes in light attenuating particles, especially in the coastal Arctic Ocean. |
format |
Article in Journal/Newspaper |
author |
Walch, Daniela M. R. Singh, Rakesh K. Søreide, Janne E. Lantuit, Hugues Poste, Amanda |
spellingShingle |
Walch, Daniela M. R. Singh, Rakesh K. Søreide, Janne E. Lantuit, Hugues Poste, Amanda Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series |
author_facet |
Walch, Daniela M. R. Singh, Rakesh K. Søreide, Janne E. Lantuit, Hugues Poste, Amanda |
author_sort |
Walch, Daniela M. R. |
title |
Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series |
title_short |
Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series |
title_full |
Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series |
title_fullStr |
Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series |
title_full_unstemmed |
Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series |
title_sort |
spatio-temporal variability of suspended particulate matter in a high-arctic estuary (adventfjorden, svalbard) using sentinel-2 time-series |
publisher |
MDPI |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/26964 https://doi.org/10.3390/rs14133123 |
long_lat |
ENVELOPE(15.515,15.515,78.258,78.258) |
geographic |
Arctic Arctic Ocean Svalbard Adventfjorden |
geographic_facet |
Arctic Arctic Ocean Svalbard Adventfjorden |
genre |
Adventfjorden Arctic Arctic Arctic Ocean Climate change Svalbard |
genre_facet |
Adventfjorden Arctic Arctic Arctic Ocean Climate change Svalbard |
op_relation |
Remote Sensing info:eu-repo/grantAgreement/EC/SOCIETAL CHALLENGES /773421/EU/Permafrost thaw and the changing arctic coast: science for socio-economic adaptation/Nunataryuk/ Walch D, Singh, Søreide, Lantuit, Poste. Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series. Remote Sensing. 2022;14(13) FRIDAID 2051173 doi:10.3390/rs14133123 2072-4292 https://hdl.handle.net/10037/26964 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/rs14133123 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
13 |
container_start_page |
3123 |
_version_ |
1766395748003348480 |