Abstract:
Taung-Tha-Man Lake (TTM) is the major
fresh water body providing Amarapura with this
water used for various purposes. One of the main
challenges faced by the sustainable development of
TTM is the need for better water management. The
purpose of this study is to extract water area and
detect changes in TTM Lake from Landsat imagery.
NDWI, Modified NDWI, WRI and AWEI are used for
extraction of surface water. The accuracies of the
water indices are tested using the error matrix.
Among them, MNDWI is the highest accuracy in
extract water body compared to other indices. The
results illustrate that average accuracy of the water
indices method is 90%. Experimental results indicate
very small change (0.4032 km2 in 2000-2010 and -
0.2484 km2 between 2010 and 2017) in TTM Lake.
This study can be used as guidance to protect the
lake and manage water resources.
