11:00 AM - 11:15 AM
[HTT16-02] The monitoring of shape change of sand cay based on multi-platform remote sensing
Keywords:Unmanned Aerial Vehicle, Sentinel-2, Shoreline changes, Coral sand cay
Shoreline changes in the sand cays were measured by two datasets from two platforms. Two datasets were as follows; 1) Satellite image (Sentinel-2 L1C, L2A) were taken between 2016 and 2018. 2) Vertical aerial photographs were taken by using UAV in 2018/1/27. Meteorological observation data recorded at the Kume Island Weather Station over the period 2016-2018 were analyzed.
The shape and position of sand cays change frequently in two years. The cay expanded toward the north after typhoons and then gradually migrated to the south while northern shoreline eroded by winter monsoon.