1. Department of Geomatics Engineering, Institut Teknologi Sepuluh Nopember, Kota SBY, Indonesia
2. Department of Geophysical Engineering, Institut Teknologi Sepuluh Nopember, Kota SBY, Indonesia
3. Department of Geomatics Engineering, National Cheng Kung University, Tainan City, Taiwan
4. Center for Environmental Remote Sensing, Chiba University, Chiba, Japan