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Remote Sens. 2016, 8(1), 2;

Mapping Submerged Habitats and Mangroves of Lampi Island Marine National Park (Myanmar) from in Situ and Satellite Observations

CNR-IREA, Optical Remote Sensing Group, Via Bassini 15, Milano 20133, Italy
Remote Sensing of Environmental Dynamics Lab., University of Milano-Bicocca, DISAT, Pzza Della Scienza 1, Milano 20126, Italy
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Academic Editors: Stuart Phinn, Chris Roelfsema, Xiaofeng Li and Prasad S. Thenkabail
Received: 15 September 2015 / Revised: 1 December 2015 / Accepted: 8 December 2015 / Published: 22 December 2015
(This article belongs to the Special Issue Remote Sensing for Coral Reef Monitoring)
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In this study we produced the first thematic maps of submerged and coastal habitats of Lampi Island (Myanmar) from in situ and satellite data. To focus on key elements of bio-diversity typically existing in tropical islands the detection of corals, seagrass, and mangrove forests was addressed. Satellite data were acquired from Landsat-8; for the purpose of validation Rapid-Eye data were also used. In situ data supporting image processing were collected in a field campaign performed from 28 February to 4 March 2015 at the time of sensors overpasses. A hybrid approach based on bio-optical modeling and supervised classification techniques was applied to atmospherically-corrected Landsat-8 data. Bottom depth estimations, to be used in the classification process of shallow waters, were in good agreement with depth soundings (R2 = 0.87). Corals were classified with producer and user accuracies of 58% and 77%, while a lower accuracy (producer and user accuracies of 50%) was found for the seagrass due to the patchy distribution of meadows; accuracies more than 88% were obtained for mangrove forests. The classification indicated the presence of 18 mangroves sites with extension larger than 5 km2; for 15 of those the coexistence of corals and seagrass were also found in the fronting bays, suggesting a significant rate of biodiversity for the study area. View Full-Text
Keywords: corals; seagrass; mangrove forests; Landsat-8; biodiversity; marine national park corals; seagrass; mangrove forests; Landsat-8; biodiversity; marine national park

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Giardino, C.; Bresciani, M.; Fava, F.; Matta, E.; Brando, V.E.; Colombo, R. Mapping Submerged Habitats and Mangroves of Lampi Island Marine National Park (Myanmar) from in Situ and Satellite Observations. Remote Sens. 2016, 8, 2.

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