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Mapping coastal marine ecosystems of the National Park of Banc d’Arguin (PNBA) in Mauritania using Sentinel-2 imagery

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Mapping coastal marine ecosystems of the National Park of Banc d’Arguin (PNBA) in Mauritania using Sentinel-2 imagery. / Pottier, A.; Catry, T.; Trégarot, E.; Maréchal, J.-p.; Fayad, V.; David, G.; Sidi Cheikh, M.; Failler, P.

In: International Journal of Applied Earth Observation and Geoinformation, Vol. 102, 102419, 01.10.2021.

Research output: Contribution to journalArticlepeer-review

Harvard

Pottier, A, Catry, T, Trégarot, E, Maréchal, J, Fayad, V, David, G, Sidi Cheikh, M & Failler, P 2021, 'Mapping coastal marine ecosystems of the National Park of Banc d’Arguin (PNBA) in Mauritania using Sentinel-2 imagery', International Journal of Applied Earth Observation and Geoinformation, vol. 102, 102419. https://doi.org/10.1016/j.jag.2021.102419

APA

Pottier, A., Catry, T., Trégarot, E., Maréchal, J., Fayad, V., David, G., Sidi Cheikh, M., & Failler, P. (2021). Mapping coastal marine ecosystems of the National Park of Banc d’Arguin (PNBA) in Mauritania using Sentinel-2 imagery. International Journal of Applied Earth Observation and Geoinformation, 102, [102419]. https://doi.org/10.1016/j.jag.2021.102419

Vancouver

Pottier A, Catry T, Trégarot E, Maréchal J, Fayad V, David G et al. Mapping coastal marine ecosystems of the National Park of Banc d’Arguin (PNBA) in Mauritania using Sentinel-2 imagery. International Journal of Applied Earth Observation and Geoinformation. 2021 Oct 1;102. 102419. https://doi.org/10.1016/j.jag.2021.102419

Author

Pottier, A. ; Catry, T. ; Trégarot, E. ; Maréchal, J.-p. ; Fayad, V. ; David, G. ; Sidi Cheikh, M. ; Failler, P. / Mapping coastal marine ecosystems of the National Park of Banc d’Arguin (PNBA) in Mauritania using Sentinel-2 imagery. In: International Journal of Applied Earth Observation and Geoinformation. 2021 ; Vol. 102.

Bibtex

@article{1688cd709d034b478b74120b08cf7138,
title = "Mapping coastal marine ecosystems of the National Park of Banc d{\textquoteright}Arguin (PNBA) in Mauritania using Sentinel-2 imagery",
abstract = "Coastal marine ecosystems ensure fundamental hydro-ecological functions and support high levels of biodiversity, besides being an important resource for local populations. These biocenosis have been increasingly threatened by human pressures (e.g. pollution, overfishing) along with climate change, which may have a dramatic impact on them. The National Park of Banc d{\textquoteright}Arguin (PNBA) in Mauritania, one of the biggest parks in Western Africa, is a RAMSAR zone (classified by UNESCO since 1989) that plays a major role in (i) the maintenance of marine biocenosis, (ii) the protection of the ecosystems and (iii) the sequestration of carbon dioxide. Ecosystem databases and associated maps of the PNBA are out of date and limited to the southern and central parts of the park: updating is thus needed. In this paper, a supervised Support Vector Machine (SVM) was deployed using high-resolution images from Sentinel-2 combined with field data to map marine biocenosis of the PNBA. The results highlight that Sentinel-2 shows good classification accuracy for mapping marine biocenosis (>80% overall accuracy and a kappa index of 0.75), including seagrass beds. Also, the use of high-resolution sensors like SPOT-6 (1.5 m pixels) can overcome the limitations of Sentinel-2 (10 m pixels) when it comes to detecting small ecosystems distributed in patches. The use of freely-downloadable Sentinel-2 data, processed using geoinformatic freeware, make the methodology reproducible, affordable and easily transferable to local actors of biodiversity conservation for long term usage.",
keywords = "Coastal marine ecosystems, Seagrass, Remote sensing, Sentinel-2, SPOT-6, Banc d{\textquoteright}Arguin",
author = "A. Pottier and T. Catry and E. Tr{\'e}garot and J.-p. Mar{\'e}chal and V. Fayad and G. David and {Sidi Cheikh}, M. and P. Failler",
year = "2021",
month = jul,
day = "16",
doi = "10.1016/j.jag.2021.102419",
language = "English",
volume = "102",
journal = "International Journal of Applied Earth Observation and Geoinformation",
issn = "1569-8432",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Mapping coastal marine ecosystems of the National Park of Banc d’Arguin (PNBA) in Mauritania using Sentinel-2 imagery

AU - Pottier, A.

AU - Catry, T.

AU - Trégarot, E.

AU - Maréchal, J.-p.

AU - Fayad, V.

AU - David, G.

AU - Sidi Cheikh, M.

AU - Failler, P.

PY - 2021/7/16

Y1 - 2021/7/16

N2 - Coastal marine ecosystems ensure fundamental hydro-ecological functions and support high levels of biodiversity, besides being an important resource for local populations. These biocenosis have been increasingly threatened by human pressures (e.g. pollution, overfishing) along with climate change, which may have a dramatic impact on them. The National Park of Banc d’Arguin (PNBA) in Mauritania, one of the biggest parks in Western Africa, is a RAMSAR zone (classified by UNESCO since 1989) that plays a major role in (i) the maintenance of marine biocenosis, (ii) the protection of the ecosystems and (iii) the sequestration of carbon dioxide. Ecosystem databases and associated maps of the PNBA are out of date and limited to the southern and central parts of the park: updating is thus needed. In this paper, a supervised Support Vector Machine (SVM) was deployed using high-resolution images from Sentinel-2 combined with field data to map marine biocenosis of the PNBA. The results highlight that Sentinel-2 shows good classification accuracy for mapping marine biocenosis (>80% overall accuracy and a kappa index of 0.75), including seagrass beds. Also, the use of high-resolution sensors like SPOT-6 (1.5 m pixels) can overcome the limitations of Sentinel-2 (10 m pixels) when it comes to detecting small ecosystems distributed in patches. The use of freely-downloadable Sentinel-2 data, processed using geoinformatic freeware, make the methodology reproducible, affordable and easily transferable to local actors of biodiversity conservation for long term usage.

AB - Coastal marine ecosystems ensure fundamental hydro-ecological functions and support high levels of biodiversity, besides being an important resource for local populations. These biocenosis have been increasingly threatened by human pressures (e.g. pollution, overfishing) along with climate change, which may have a dramatic impact on them. The National Park of Banc d’Arguin (PNBA) in Mauritania, one of the biggest parks in Western Africa, is a RAMSAR zone (classified by UNESCO since 1989) that plays a major role in (i) the maintenance of marine biocenosis, (ii) the protection of the ecosystems and (iii) the sequestration of carbon dioxide. Ecosystem databases and associated maps of the PNBA are out of date and limited to the southern and central parts of the park: updating is thus needed. In this paper, a supervised Support Vector Machine (SVM) was deployed using high-resolution images from Sentinel-2 combined with field data to map marine biocenosis of the PNBA. The results highlight that Sentinel-2 shows good classification accuracy for mapping marine biocenosis (>80% overall accuracy and a kappa index of 0.75), including seagrass beds. Also, the use of high-resolution sensors like SPOT-6 (1.5 m pixels) can overcome the limitations of Sentinel-2 (10 m pixels) when it comes to detecting small ecosystems distributed in patches. The use of freely-downloadable Sentinel-2 data, processed using geoinformatic freeware, make the methodology reproducible, affordable and easily transferable to local actors of biodiversity conservation for long term usage.

KW - Coastal marine ecosystems

KW - Seagrass

KW - Remote sensing

KW - Sentinel-2

KW - SPOT-6

KW - Banc d’Arguin

U2 - 10.1016/j.jag.2021.102419

DO - 10.1016/j.jag.2021.102419

M3 - Article

VL - 102

JO - International Journal of Applied Earth Observation and Geoinformation

JF - International Journal of Applied Earth Observation and Geoinformation

SN - 1569-8432

M1 - 102419

ER -

ID: 28679756