Sentinel-2 remote sensing of Zostera noltei-dominated intertidal seagrass meadows
| العنوان: | Sentinel-2 remote sensing of Zostera noltei-dominated intertidal seagrass meadows |
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| المؤلفون: | Zoffoli, Maria Laura, Gernez, Pierre, Rosa, Philippe, Le Bris, Anthony, Brando, Vittorio E., Barillé, Anne Laure, Harin, Nicolas, Peters, Steef, Poser, Kathrin, Spaias, Lazaros, Peralta, Gloria, Barillé, Laurent |
| المساهمون: | Biología, Mer, molécules et santé (MMS UCO), Université Catholique de l'Ouest (UCO)-PRES Université Nantes Angers Le Mans (UNAM), Istituto di Scienze Marine [Venezia] (ISMAR-CNR), Istituto di Science Marine (ISMAR ), Consiglio Nazionale delle Ricerche (CNR)-Consiglio Nazionale delle Ricerche (CNR), University of Cadiz |
| المصدر: | Remote Sensing of Environment 251 (2020) 112020 RODIN: Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz Universidad de Cádiz Remote Sensing of Environment Remote Sensing of Environment, 2020, 251, pp.112020-. ⟨10.1016/j.rse.2020.112020⟩ RODIN. Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz instname Remote sensing of environment 251 (2020). doi:10.1016/j.rse.2020.112020 info:cnr-pdr/source/autori:Zoffoli, Maria Laura; Gernez, Pierre; Rosa, Philippe; Le Bris, Anthony; Brando, Vittorio E.; Barillé, Anne Laure; Harin, Nicolas; Peters, Steef; Poser, Kathrin; Spaias, Lazaros; Peralta, Gloria; Barillé, Laurent/titolo:Sentinel-2 remote sensing of Zostera noltei-dominated intertidal seagrass meadows/doi:10.1016%2Fj.rse.2020.112020/rivista:Remote sensing of environment/anno:2020/pagina_da:/pagina_a:/intervallo_pagine:/volume:251 |
| بيانات النشر: | ELSEVIER SCIENCE INC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Zostera noltei, Earth observation, [SDE]Environmental Sciences, Water framework directive, Seasonal cycle, Mudflats |
| الوصف: | Accurate habitat mapping methods are urgently required for the monitoring, conservation, and management of blue carbon ecosystems and their associated services. This study focuses on exposed intertidal seagrass meadows, which play a major role in the functioning of nearshore ecosystems. Using Sentinel-2 (S2) data, we demonstrate that satellite remote sensing can be used to map seagrass percent cover (SPC) and leaf biomass (SB), and to characterize its seasonal dynamics. In situ radiometric and biological data were acquired from three intertidal meadows of Zostera noltei along the European Atlantic coast in the summers of 2018 and 2019. This information allowed algorithms to estimate SPC and SB from a vegetation index to be developed and assessed. Importantly, a single SPC algorithm could consistently be used to study Z. noltei-dominated meadows at several sites along the European Atlantic coast. To analyze the seagrass seasonal cycle and to select images corresponding to its maximal development, a two-yearS2 dataset was acquired for a French study site in Bourgneuf Bay. The potential of S2 to characterize the Z. noltei seasonal cycle was demonstrated for exposed intertidal meadows. The SPC map that best represented seagrass growth annual maximum was validated using in situ measurements, resulting in a root mean square difference of 14%. The SPC and SB maps displayed a patchy distribution, influenced by emersion time, mudflat topology, and seagrass growth pattern. The ability of S2 to measure the surface area of different classes of seagrass cover was investigated, and surface metrics based on seagrass areas with SPC≥50% and SPC≥80% were computed to estimate the interannual variation in the areal extent of the meadow. Due to the high spatial resolution (pixel size of 10m), frequent revisit time (≤ 5days), and long-term objective of the S2 mission, S2-derived seagrass time-series are expected to contribute to current coastal ecosystem management, such as the European Water Framework Directive, but to also guide future adaptation plans to face global change in coastal areas. Finally, recommendations for future intertidal seagrass studies are proposed. |
| وصف الملف: | application/pdf |
| تدمد: | 0034-4257 |
| DOI: | 10.1016/j.rse.2020.112020⟩ |
| DOI: | 10.1016/j.rse.2020.112020 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1166281c06068375fb6b8a2667a0b176 http://hdl.handle.net/10498/24151 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.dedup.wf.001..1166281c06068375fb6b8a2667a0b176 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00344257 |
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| DOI: | 10.1016/j.rse.2020.112020⟩ |