TITLE:
Mangrove Forests Mapping in the Southern Part of Japan Using Landsat ETM+ with DEM
AUTHORS:
Bayan Alsaaideh, Ahmad Al-Hanbali, Ryutaro Tateishi, Toshiyuki Kobayashi, Nguyen Thanh Hoan
KEYWORDS:
Mangrove Forests; NDWI; NDVI; DEM; Japan
JOURNAL NAME:
Journal of Geographic Information System,
Vol.5 No.4,
July
30,
2013
ABSTRACT: A
regional map of mangrove forests was produced for six islands located in the
southern part of Japan
by integrating the spectral analyses of Landsat Enhanced Thematic Mapper plus (ETM+)
images with a digital elevation model (DEM). Several attempts were applied to
propose a reliable method, which can be used to map the distribution of
mangrove forests at a regional scale. The methodology used in this study
comprised of obtaining the difference between Normalized Difference Water Index
(NDWI) and Normalized Difference Vegetation Index (NDVI), band ratio 5/4, and
band 5, from Landsat ETM+, and integrating them with the topographic
information. The integration of spectral analyses with topographic data has
clearly separated the mangrove forests from other vegetation. An accuracy assessment
was carried out in order to check the accuracy of the results. High overall accuracy
ranging from 89.3% to 93.6% was achieved, which increased the opportunity to
use this methodology in other countries rich in mangrove forests.