Mapping of the Spatio-Spectral Dynamics of Mangrove Chlorophyll Concentrations via Sentinel-2 Satellite Imagery
Mangrove ecosystems play a critical role in maintaining coastal health; however, they are increasingly threatened by anthropogenic activities and climate change. Health assessment is essential for effective conservation efforts. However, traditional remote sensing techniques such as the normalised d...
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| Format: | Article |
| Language: | English |
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Universitas Muhammadiyah Surakarta
2024-08-01
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| Series: | Forum Geografi |
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| Online Access: | https://journals2.ums.ac.id/index.php/fg/article/view/4518 |
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| author | K. K Basheer Ahammed I Wayan Gede Astawa Karang I Wayan Nuarsa I Gede Surya Indrawan I Gede Hendrawan Ni Made Nia Bunga Surya Dewi Arvind Chandra Pandey |
| author_facet | K. K Basheer Ahammed I Wayan Gede Astawa Karang I Wayan Nuarsa I Gede Surya Indrawan I Gede Hendrawan Ni Made Nia Bunga Surya Dewi Arvind Chandra Pandey |
| author_sort | K. K Basheer Ahammed |
| collection | DOAJ |
| description | Mangrove ecosystems play a critical role in maintaining coastal health; however, they are increasingly threatened by anthropogenic activities and climate change. Health assessment is essential for effective conservation efforts. However, traditional remote sensing techniques such as the normalised difference vegetation index (NDVI) may not fully capture the complex physiological processes influencing vegetation health. Therefore, this study investigated chlorophyll (Chl) dynamics in mangroves using remote sensing techniques, including the NDVI and a novel method, the normalised area over reflectance curve (NAOC), via Sentinel-2 satellite imagery during October 2023, and analysed spatial variations in Chl content (CC) via the Google Earth Engine API. NDVI and NAOC-Chl were weakly correlated (0.47), highlighting their complementary roles. The average NDVI and NOAC-Chl values for different species were analysed, and Rhizophora mucronata presented the highest value (NDVI: 0.86 ± 0.08, NOAC: 20.48 ± 4.49. |
| format | Article |
| id | doaj-art-4be6bb46d50d41ffbfde5e99e285acaf |
| institution | DOAJ |
| issn | 0852-0682 2460-3945 |
| language | English |
| publishDate | 2024-08-01 |
| publisher | Universitas Muhammadiyah Surakarta |
| record_format | Article |
| series | Forum Geografi |
| spelling | doaj-art-4be6bb46d50d41ffbfde5e99e285acaf2025-08-20T03:08:36ZengUniversitas Muhammadiyah SurakartaForum Geografi0852-06822460-39452024-08-0138224425610.23917/forgeo.v38i2.45184534Mapping of the Spatio-Spectral Dynamics of Mangrove Chlorophyll Concentrations via Sentinel-2 Satellite ImageryK. K Basheer Ahammed0I Wayan Gede Astawa Karang1I Wayan Nuarsa2I Gede Surya Indrawan3I Gede Hendrawan4Ni Made Nia Bunga Surya Dewi5Arvind Chandra Pandey6Department of Marine Science, Faculty of Marine Science and Fisheries, Udayana University, Jimbaran, Bali 80361 Indonesia. International Union for the Conservation of Nature (IUCN), Commission on Ecosystem Management (CEM), South AsiaDepartment of Marine Science, Faculty of Marine Science and Fisheries, Udayana University, Jimbaran, Bali 80361 Department of Marine Science, Faculty of Marine Science and Fisheries, Udayana University, Jimbaran, Bali 80361 Department of Marine Science, Faculty of Marine Science and Fisheries, Udayana University, Jimbaran, Bali 80361 Department of Marine Science, Faculty of Marine Science and Fisheries, Udayana University, Jimbaran, Bali 80361 Doctor of Environmental Science, Post Graduate Program, Udayana University, Jimbaran, Bali Department of Geoinformatics, School of Natural Resource Management, Central University of Jharkhand, Cheri Manatu Rachi, 835 222 Mangrove ecosystems play a critical role in maintaining coastal health; however, they are increasingly threatened by anthropogenic activities and climate change. Health assessment is essential for effective conservation efforts. However, traditional remote sensing techniques such as the normalised difference vegetation index (NDVI) may not fully capture the complex physiological processes influencing vegetation health. Therefore, this study investigated chlorophyll (Chl) dynamics in mangroves using remote sensing techniques, including the NDVI and a novel method, the normalised area over reflectance curve (NAOC), via Sentinel-2 satellite imagery during October 2023, and analysed spatial variations in Chl content (CC) via the Google Earth Engine API. NDVI and NAOC-Chl were weakly correlated (0.47), highlighting their complementary roles. The average NDVI and NOAC-Chl values for different species were analysed, and Rhizophora mucronata presented the highest value (NDVI: 0.86 ± 0.08, NOAC: 20.48 ± 4.49.https://journals2.ums.ac.id/index.php/fg/article/view/4518google earth enginesentinel 2mangrovescanopy chlorophyllvegetation health |
| spellingShingle | K. K Basheer Ahammed I Wayan Gede Astawa Karang I Wayan Nuarsa I Gede Surya Indrawan I Gede Hendrawan Ni Made Nia Bunga Surya Dewi Arvind Chandra Pandey Mapping of the Spatio-Spectral Dynamics of Mangrove Chlorophyll Concentrations via Sentinel-2 Satellite Imagery Forum Geografi google earth engine sentinel 2 mangroves canopy chlorophyll vegetation health |
| title | Mapping of the Spatio-Spectral Dynamics of Mangrove Chlorophyll Concentrations via Sentinel-2 Satellite Imagery |
| title_full | Mapping of the Spatio-Spectral Dynamics of Mangrove Chlorophyll Concentrations via Sentinel-2 Satellite Imagery |
| title_fullStr | Mapping of the Spatio-Spectral Dynamics of Mangrove Chlorophyll Concentrations via Sentinel-2 Satellite Imagery |
| title_full_unstemmed | Mapping of the Spatio-Spectral Dynamics of Mangrove Chlorophyll Concentrations via Sentinel-2 Satellite Imagery |
| title_short | Mapping of the Spatio-Spectral Dynamics of Mangrove Chlorophyll Concentrations via Sentinel-2 Satellite Imagery |
| title_sort | mapping of the spatio spectral dynamics of mangrove chlorophyll concentrations via sentinel 2 satellite imagery |
| topic | google earth engine sentinel 2 mangroves canopy chlorophyll vegetation health |
| url | https://journals2.ums.ac.id/index.php/fg/article/view/4518 |
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