Kohei YAGI
[Using the high frequency observation satellite, examination of grasp of a disaster farmland revival assessment-of-the-situation.]
RIKIMARU Atsushi, SAKATA Kenta
On March 11, 2011, the greatest earthquake in Japan in the history of observation occurred, and the Tsunami occurred on it. The Tsunami brought destructive damage to the Pacific coast, and did serious damage also in farmland, such as submergence, salt damage, to it.
Moreover, I also went to the disaster area as a volunteer there, and saw severe of damage. Somehow or other, I thought whether disaster farmlands using remote sensing technology could be observed. However, as the present condition, if it is going to observe a certain particular place, it is difficult to obtain good observational data according to a climate condition etc. in the usual satellite. Thereby, observational date is insufficient. Therefore, I performed high frequency observation and thought that the observational data of the day fine as much as possible would be collected.
As the purpose of this research, using the high frequency observation satellite is used in order to keep climate from being influenced and a disaster farmland revival assessment-of-the-situation figure is created. And, it consider from those results.
As the result of three interpolation with comparison, Nearest Neighbor is the best of three, but in other observation satellites, a possibility that it is good also has other interpolation, and Nearest Neighbor cannot declare that it is the best.
As the result of the farmland revival assessment-of-the-situation figure, A place good as farmland and A place bad as farmland distinguished. The ambiguous place was also able to be distinguished by collation with a local photograph. Thereby the possibility of presumption of a cover condition of disaster farmland with high frequency observation satellite data was suggested. But, an error occurs into details. This problem is considered as the subject of future research.
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