USE OF LANDSAT-8 OLI IMAGERY AND LOCAL INDIGENOUS KNOWLEDGE FOR EELGRASS MAPPING IN EEYOU ISTCHEE
The eastern coastline of James Bay (Eeyou Istchee) is known to be home to beds of subarctic eelgrass ( Zostera marina L.). These eelgrass beds provide valuable habitat and food source for coastal and marine animals and contribute valuable ecosystem services such as stabilization of the shoreline all...
Published in: | ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
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2021
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Online Access: | https://doi.org/10.5194/isprs-annals-V-3-2021-15-2021 https://doaj.org/article/da785953b7d2416bbc131207d51e3941 |
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ftdoajarticles:oai:doaj.org/article:da785953b7d2416bbc131207d51e3941 2023-05-15T18:28:35+02:00 USE OF LANDSAT-8 OLI IMAGERY AND LOCAL INDIGENOUS KNOWLEDGE FOR EELGRASS MAPPING IN EEYOU ISTCHEE K. Clyne B. Leblon A. LaRocque M. Costa M. Leblanc E. Rabbitskin M. Dunn 2021-06-01T00:00:00Z https://doi.org/10.5194/isprs-annals-V-3-2021-15-2021 https://doaj.org/article/da785953b7d2416bbc131207d51e3941 EN eng Copernicus Publications https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/V-3-2021/15/2021/isprs-annals-V-3-2021-15-2021.pdf https://doaj.org/toc/2194-9042 https://doaj.org/toc/2194-9050 doi:10.5194/isprs-annals-V-3-2021-15-2021 2194-9042 2194-9050 https://doaj.org/article/da785953b7d2416bbc131207d51e3941 ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol V-3-2021, Pp 15-22 (2021) Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 article 2021 ftdoajarticles https://doi.org/10.5194/isprs-annals-V-3-2021-15-2021 2022-12-31T07:33:25Z The eastern coastline of James Bay (Eeyou Istchee) is known to be home to beds of subarctic eelgrass ( Zostera marina L.). These eelgrass beds provide valuable habitat and food source for coastal and marine animals and contribute valuable ecosystem services such as stabilization of the shoreline all along the coast. Despite reports from Cree communities that eelgrass bed health has declined, limited research has been performed to assess and map the spatial distribution of eelgrass within the bay. This study aims to address that issue by evaluating the capability of Landsat-8 Operational Land Imager (OLI) imagery to establish a baseline map of eelgrass distribution in 2019 in the relatively turbid waters of Eeyou Istchee. Three images acquired in September 2019 were merged and classified using Random Forests into the following classes: Eelgrass, Turbid Water, Highly Turbid Water, and Optically Deep Water. The resulting classified image was validated against 108 ground truth data that were obtained from both the eelgrass health and Hydro-Quebec research team. The resulting overall accuracy was 78.7%, indicating the potential of the Random Forests classifier to estimate baseline eelgrass coverage in James Bay using Landsat-8 imagery. This project is part of a Cree driven project, the Coastal Habitat Comprehensive Research Program (CHCRP). The CHCRP aims to combine Cree's traditional knowledge with Western science to better understand environmental changes in the coastal ecosystems and ecosystem services of eastern James Bay. The study is funded by a MITACS grant sponsored by Niskamoon Corporation, an indigenous non-profit organization. Article in Journal/Newspaper Subarctic James Bay Directory of Open Access Journals: DOAJ Articles ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences V-3-2021 15 22 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 |
spellingShingle |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 K. Clyne B. Leblon A. LaRocque M. Costa M. Leblanc E. Rabbitskin M. Dunn USE OF LANDSAT-8 OLI IMAGERY AND LOCAL INDIGENOUS KNOWLEDGE FOR EELGRASS MAPPING IN EEYOU ISTCHEE |
topic_facet |
Technology T Engineering (General). Civil engineering (General) TA1-2040 Applied optics. Photonics TA1501-1820 |
description |
The eastern coastline of James Bay (Eeyou Istchee) is known to be home to beds of subarctic eelgrass ( Zostera marina L.). These eelgrass beds provide valuable habitat and food source for coastal and marine animals and contribute valuable ecosystem services such as stabilization of the shoreline all along the coast. Despite reports from Cree communities that eelgrass bed health has declined, limited research has been performed to assess and map the spatial distribution of eelgrass within the bay. This study aims to address that issue by evaluating the capability of Landsat-8 Operational Land Imager (OLI) imagery to establish a baseline map of eelgrass distribution in 2019 in the relatively turbid waters of Eeyou Istchee. Three images acquired in September 2019 were merged and classified using Random Forests into the following classes: Eelgrass, Turbid Water, Highly Turbid Water, and Optically Deep Water. The resulting classified image was validated against 108 ground truth data that were obtained from both the eelgrass health and Hydro-Quebec research team. The resulting overall accuracy was 78.7%, indicating the potential of the Random Forests classifier to estimate baseline eelgrass coverage in James Bay using Landsat-8 imagery. This project is part of a Cree driven project, the Coastal Habitat Comprehensive Research Program (CHCRP). The CHCRP aims to combine Cree's traditional knowledge with Western science to better understand environmental changes in the coastal ecosystems and ecosystem services of eastern James Bay. The study is funded by a MITACS grant sponsored by Niskamoon Corporation, an indigenous non-profit organization. |
format |
Article in Journal/Newspaper |
author |
K. Clyne B. Leblon A. LaRocque M. Costa M. Leblanc E. Rabbitskin M. Dunn |
author_facet |
K. Clyne B. Leblon A. LaRocque M. Costa M. Leblanc E. Rabbitskin M. Dunn |
author_sort |
K. Clyne |
title |
USE OF LANDSAT-8 OLI IMAGERY AND LOCAL INDIGENOUS KNOWLEDGE FOR EELGRASS MAPPING IN EEYOU ISTCHEE |
title_short |
USE OF LANDSAT-8 OLI IMAGERY AND LOCAL INDIGENOUS KNOWLEDGE FOR EELGRASS MAPPING IN EEYOU ISTCHEE |
title_full |
USE OF LANDSAT-8 OLI IMAGERY AND LOCAL INDIGENOUS KNOWLEDGE FOR EELGRASS MAPPING IN EEYOU ISTCHEE |
title_fullStr |
USE OF LANDSAT-8 OLI IMAGERY AND LOCAL INDIGENOUS KNOWLEDGE FOR EELGRASS MAPPING IN EEYOU ISTCHEE |
title_full_unstemmed |
USE OF LANDSAT-8 OLI IMAGERY AND LOCAL INDIGENOUS KNOWLEDGE FOR EELGRASS MAPPING IN EEYOU ISTCHEE |
title_sort |
use of landsat-8 oli imagery and local indigenous knowledge for eelgrass mapping in eeyou istchee |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/isprs-annals-V-3-2021-15-2021 https://doaj.org/article/da785953b7d2416bbc131207d51e3941 |
genre |
Subarctic James Bay |
genre_facet |
Subarctic James Bay |
op_source |
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol V-3-2021, Pp 15-22 (2021) |
op_relation |
https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/V-3-2021/15/2021/isprs-annals-V-3-2021-15-2021.pdf https://doaj.org/toc/2194-9042 https://doaj.org/toc/2194-9050 doi:10.5194/isprs-annals-V-3-2021-15-2021 2194-9042 2194-9050 https://doaj.org/article/da785953b7d2416bbc131207d51e3941 |
op_doi |
https://doi.org/10.5194/isprs-annals-V-3-2021-15-2021 |
container_title |
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
V-3-2021 |
container_start_page |
15 |
op_container_end_page |
22 |
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1766211108952080384 |