Tsutomu Yamanokuchi

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The Advanced Land Observing Satellite (ALOS) is relatively new. Its optical sensors are capable of making high-resolution digital surface models (DSMs). For the first time, the task of constructing a regional-scale inventory of glacial lakes based on ALOS data has been undertaken. This study presents the data-processing methods and the results of validation(More)
We applied InSAR analysis to the ERS-1/ERS-2 SAR data mostly obtained between November 1995 and March 1997, and obtained the grounding lines for parts of East Antarctica (25 ̊W-40 ̊E) and West Antarctica (85 ̊W-165 ̊W). The InSAR detected grounding lines delineated more precise (7000 m depending on location) and more detailed coastline features than the ADD(More)
We analyzed ALOS PALSAR interferometric data pairs from Sendai Plain, Japan, along the Pacific Ocean. Continuous fringe patterns were extracted from the data pair of which perpendicular baseline distance is more than 2000 m. Most of the interferograms generated in this study show fringe features that are independent from actual surface deformation. Some(More)
The objectives of this study are to validate generated Digital Surface Models (DSMs) by PRISM onboard the Advanced Land Observing Satellite (ALOS, nicknamed “Daichi”) in snow and glacier regions to contribute to the evaluation of potential Glacial Lake Outburst Floods (GLOFs) and their mitigation in the Bhutan Himalaya. Glacial lake inventory will also be(More)
Thermokarst is the process of ground subsidence caused by either the thawing of ice-rich permafrost or the melting of massive ground ice. The consequences of permafrost degradation associated with thermokarst for surface ecology, landscape evolution, and hydrological processes have been of great scientific interest and social concern. Part of a tundra patch(More)
This study aims to develop and validate a new glacial lake inventory in order to gain an understanding of existing conditions. This is being done using optical imageries acquired by the Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) and the Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) onboard the Advanced Land Observing(More)