Surface sedimentary facies and the change of microphytobenthos distribution in Geunso Bay tidal flat
were monitored using remotely sensed data. Sediment distribution was analyzed along with the spectral reflectance
based on the in situ data, and the spectral characteristics of the area where microphytobenthos occupied was
examined. A medium to low spatial resolution of satellite image was not suitable for the detection of the surface
sediments changes in the study area due to its ambiguity in the sedimentary facies boundary, but the seasonal
changes of microphytobenthos distribution could be obviously detected. However, area of predominance of sand
grains and seagrass distribution could be distinctly identified from a high spatial resolution remote sensing image.
From this, it is expected that KOMPSAT-2 satellite images can be applied effectively to the study on the surface
sedimentary facies and detailed ecological mapping in a tidal flat.
Keywords : Geunso bay tidal flat, satellite images, microphytobenthos, surface sediments facies, NDVI