scholarly journals Aircraft loaded SAR first observation by Geographical Survey Institute.

1999 ◽  
Vol 38 (6) ◽  
pp. 2-3
Author(s):  
MAMORU KOARAI
Keyword(s):  
Geographical Survey Institute

scholarly journals Supply Potential and Annual Availability of Timber and Forest Biomass Resources for Energy Considering Inter-Prefectural Trade in Tohoku Region of Japan

2020 ◽  
Vol 3 (1) ◽  
pp. 40
Author(s):  
Yusuke Matsuoka ◽  
Hiroaki Shirasawa ◽  
Uichi Hayashi ◽  
Kazuhiro Aruga
Keyword(s):  
Tree Species ◽  
Forest Biomass ◽  
Wood Chip ◽  
Site Index ◽  
Geographical Survey Institute ◽  
Digital Elevation ◽  
Gis Data ◽  
Biomass Resource ◽  
Biomass Resources ◽  
Generation Capacity

To promote sustainable timber and forest biomass utilization, this study estimated technically feasible and economically viable availability considering forest regenerations. This study focuses on five prefectures, namely, Aomori, Iwate, Miyagi, Akita, and Yamagata, and considers the trade between these prefectures. The data used in this study include forest registration (tree species and site index) and GIS data (information on roads and subcompartment layers) from the prefectures for private and communal forests. Additionally, this study includes GIS data (subcompartment layers, including tree species) from the Forestry Agency of Japan for national forests as well as 10-m-grid digital elevation models (DEMs) from the Geographical Survey Institute. As a result, supply potentials of timber and forest biomass resources were estimated at 11,388,960 m3/year and 2,277,792 m3/year, respectively. Then, those availabilities were estimated at 1,631,624 m3/year and 326,325 m3/year. Therefore, the rate of availabilities to supply potentials was 14.3%. Since timber production, and wood chip usage from thinned woods and logging residues in 2018 were 4,667,000 m3/year and 889,600 m3/year, respectively, the rates of timber and forest biomass resource availabilities to those values were 35.0% and 36.7%, respectively. Furthermore, the demand was estimated at 951,740 m3/year from 100,000 m3/year with the generation capacity of 5 MW. The rate of forest biomass resource availability versus the demand was 34.2%. The rates were increased to 64.1% with an additional regeneration subsidy, 173.3% with the thinning subsidy, and 181.5% with both subsidies. Thus, the estimated availability with both subsidies met the demand sufficiently in this region.

scholarly journals The Construction of a Flood Monitoring System with Alert Distribution Using Google Earth and 3D GIS

2013 ◽  
Vol 8 (3) ◽  
pp. 512-518
Author(s):  
Yili Chan ◽  
◽  
Masatoshi Mori ◽  
Keyword(s):  
Monitoring System ◽  
Local Governments ◽  
Google Earth ◽  
Surface Model ◽  
3D Gis ◽  
Geographical Survey Institute ◽  
Digital Elevation ◽  
Flood Monitoring ◽  
Elevation Data ◽  
Flood Simulations

Locations of floods are not always known. Persons nearby for whom there is a possibility of danger due to flooding need information with which to predict flooding and to find refuge quickly and accurately. A Webbased Flood Monitoring System (FMS) using Google Earth and 3D GIS has been developed by employing Google Earth pro v. 6.0 and ArcGIS 10.0 (ESRI). The FMS provides a viewer for Windows PCs and smart phones. This viewer provides information consisting of digital elevation data from a 2 m Digital Surface Model (DSM) integrating 1:2500 digital topographic maps from the Geographical Survey Institute of Japan with official river information from the Ministry of Land, Infrastructure, Transport and Tourism of Japan and local river offices. It includes flood simulations and hazard maps from local governments. Users are able to download KML file data and/or Shape file data for private use. In addition, a reporting system for preregistered users who want immediate information has been prepared for alert and flood information.

Baseline Correction Method and Strong Motion in 2003 Off Tokachi

2005 ◽  
Author(s):  
Chikahiro Minowa ◽  
Nobuyoshi Yamaguchi ◽  
Toshio Chiba
Keyword(s):  
Data Processing ◽  
Strong Motion ◽  
Correction Method ◽  
Observation System ◽  
Baseline Correction ◽  
Permanent Displacement ◽  
Geographical Survey Institute ◽  
Processing Procedure ◽  
Displacement Wave ◽  
Data Processing Procedure

Observation system of the seismic wave has greatly progressed and many accelerometers have been set all over Japan. Furthermore, the data processing procedure was developed and the reasonable permanent displacement and the displacement wave were going to be obtained from the measured acceleration data. The baseline correction method was adopted as a data processing procedure. To estimate the adaptability of the baseline correction method, the permanent displacements and displacement wave of major records in 2003 Off Tokachi Earthquake were calculated. The displacements were compared with the data of JAPAN Geographical Survey Institute and Port and Harbor Research Institute. These data were fairly similar to each other. Additionally, sloshing response of the fired large liquid storage tank in Tomakomai was calculated using these data. The baseline correction method presented here can be used successfully to correct strong motion records and present the displacement data for the seismic design and the vibration test.

scholarly journals DISASTER PREVENTION COASTAL MAP PRODUCTION BY MMS & C3D

2016 ◽  
Vol XLI-B1 ◽  
pp. 595-599
Author(s):  
Shuhei Hatake ◽  
Yuki Kohori ◽  
Yasushi Watanabe
Keyword(s):  
Water Area ◽  
Coast Guard ◽  
Tokyo Bay ◽  
Disaster Prevention ◽  
Land Area ◽  
Geographical Survey Institute ◽  
Tidal Zone ◽  
Cloud Data ◽  
Tsunami Waves ◽  
Osaka Bay

In March 2011, Eastern Japan suffered serious damage of Tsunami caused by a massive earthquake. In 2012, Ministry of Land, Infrastructure and Transport published “Guideline of setting assumed areas of inundation by Tsunami” to establish the conditions of topography data used for simulation of Tsunami. In this guideline, the elevation data prepared by Geographical Survey Institute of Japan and 2m/5m/10m mesh data of NSDI are adopted for land area, while 500m mesh data of Hydrographic and Oceanographic Department of Japan Coast Guard and sea charts are adopted for water area. These data, however, do not have continuity between land area and water area. Therefore, in order to study the possibility of providing information for coastal disaster prevention, we have developed an efficient method to acquire continuous topography over land and water including tidal zone. Land area data are collected by Mobile Mapping System (MMS) and water area depth data are collected by interferometry echo sounder (C3D), and both data are simultaneously acquired on a same boat. Elaborate point cloud data of 1m or smaller are expected to be used for realistic simulation of Tsunami waves going upstream around shoreline. Tests were made in Tokyo Bay (in 2014) and Osaka Bay (in 2015). The purpose the test in Osaka Bay is to make coastal map for disaster prevention as a countermeasure for predicted Nankai massive earthquake. In addition to Tsunami simulation, the continuous data covering land and marine areas are expected to be used effectively for maintenance and repair of aged port and river facilities, maintenance and investigation of dykes, and ecosystem preservation.

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