There are not enough GPS survey-data at the mountainous
Copy rightc The Society of Geomagnetism and Earth, Planetary and Space Sciences
(SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan;
The Geodetic Society of Japan; The Japanese Society for Planetary Sciences.
area to retrieve the present deformation. Our primary purpose
is to know the precise/temporal crustal deformation in
the mountain chain, which would not be made by analyzing
the ten-year interval traditional survey and not by the GPS
measurement in the surrounding region carried out by GSI.