5:15 PM - 7:15 PM
[SVC31-P03] Production and release of Land Condition Map of Volcano “Nikko-Shiranesan” and “Midagahara”
Keywords:land condition map of volcano (LCMV), landform classification of volcano, Nikko-Shiranesan, Midagahara
1. Introduction
Since 1988, Geospatial Information Authority (GSI) of Japan has been providing ''Land Condition Map of Volcano (LCMV)'' with a scale of 1/10,000 to 1/50,000, which are useful for predicting volcanic disasters, planning disaster countermeasures, and conducting surveys and research. The map shows the landform classification of volcanoes based on land surface morphology, surface geology, age of formation, origin, etc. In recent years, the map has been developed with priority given to volcanoes (51 volcanoes) that require enhanced observation, surveying, investigation, and research for countermeasures of active volcanoes. The map has been provided for 30 volcanoes as of January 1, 2025. In this presentation, we will report on the contents and characteristics of the LCMV "Nikko-Shiranesan'' and ''Midagahara'' that are developed in FY 2024.
2. Outline of products
The coverage area of the LCMV "Nikko-Shiranesan'' was determined based on the results of interviews with officials of the Mt. Nikko Shirane Volcanic Disaster Prevention Council and discussions on the expert review committee of the Mt. Nikko Shirane. The map area is approximately 40 km2, covers Mt. Shirane, and extends approximately 5 km north to south and 10 km east to west, up to Lake Suganuma in the north, Lake Yunoko in the east, and the Marunuma Kogen Ski Resort in the west. The scale of the map is 1/20,000.
The coverage area of the LCMV "Midagahara'' was determined based on the results of the discussions on the expert review committee of the Midagahara. The map area is approximately 70 km2 , and includes the areas around Jigokudani, Midagahara, and the Tateyama Caldera, bounded by Tateyama Station to the west, Shomyo River to the north, Joganji River to the south, and the ridge of the Tateyama Mountain Range from Mt. Bessan to Mt. Tombi to the east. The scale of the map is 1/20,000.
For both volcanoes, the volcanic landform was classified based on the interpretation of aerial photographs and detailed digital elevation model data obtained from airborne laser surveys, with reference to information on volcanic geology. We also incorporated erosional landform and mass movement landform into these maps with consideration for use in volcanic erosion control, etc.
3. Products
The LCMV "Nikko-Shiranesan" clearly shows the extent of craters, lava flows, pyroclastic cones, etc., and shows micro-landform such as "steep slope such as the terminal and side cliffs of lava flows" and erosional landform, revealing the detailed form of the volcanic landform.
The LCMV "Midagahara" shows the detailed distribution of lava flows and pyroclastic flow deposition surfaces, and shows glacial depositional landform in high mountain regions and debris avalanche depositional landform in the Tateyama caldera, revealing the unique landform classification of the Midagahara region.
The map paper sizes are A2 for LCMV "Nikko-Shiranesan" and A1 for "Midagahara". These maps will be available for viewing on GSI Maps. Additionally, we plan to provide on-demand inkjet output maps for a fee from the Japan Map Center, and to provide free image data (JPEG format) and numerical data (shapefile format, etc.) from the GSI of Japan's website.
4. Summary
In FY 2024, we produced LCMV "Nikko-Shiranesan'' and ''Midagahara''. These image data and numerical data will be provided free of charge from the GSI of Japan's website in FY 2025, as well as the paid inkjet output maps. These maps and data are expected to be used in future studies of volcanic disaster prevention, volcano research, and education.
Acknowledgements: In creating the LCMV "Nikko-Shiranesan", we received advice from Professor Emeritus Yoichi Nakamura of Utsunomiya University and Associate Professor Norifumi Hotta of University of Tokyo as members of the expert review committee, as well as cooperation from staff of the Mt. Nikko Shirane Volcanic Disaster Prevention Council. In creating the LCMV "Midagahara", we received advice from Professor Tohru Watanabe and Professor Yasuo Ishizaki of University of Toyama as members of the expert review committee, as well as cooperation from staff at the Midagahara Volcanic Disaster Prevention Council. We would like to thank express our gratitude to the above people.
Since 1988, Geospatial Information Authority (GSI) of Japan has been providing ''Land Condition Map of Volcano (LCMV)'' with a scale of 1/10,000 to 1/50,000, which are useful for predicting volcanic disasters, planning disaster countermeasures, and conducting surveys and research. The map shows the landform classification of volcanoes based on land surface morphology, surface geology, age of formation, origin, etc. In recent years, the map has been developed with priority given to volcanoes (51 volcanoes) that require enhanced observation, surveying, investigation, and research for countermeasures of active volcanoes. The map has been provided for 30 volcanoes as of January 1, 2025. In this presentation, we will report on the contents and characteristics of the LCMV "Nikko-Shiranesan'' and ''Midagahara'' that are developed in FY 2024.
2. Outline of products
The coverage area of the LCMV "Nikko-Shiranesan'' was determined based on the results of interviews with officials of the Mt. Nikko Shirane Volcanic Disaster Prevention Council and discussions on the expert review committee of the Mt. Nikko Shirane. The map area is approximately 40 km2, covers Mt. Shirane, and extends approximately 5 km north to south and 10 km east to west, up to Lake Suganuma in the north, Lake Yunoko in the east, and the Marunuma Kogen Ski Resort in the west. The scale of the map is 1/20,000.
The coverage area of the LCMV "Midagahara'' was determined based on the results of the discussions on the expert review committee of the Midagahara. The map area is approximately 70 km2 , and includes the areas around Jigokudani, Midagahara, and the Tateyama Caldera, bounded by Tateyama Station to the west, Shomyo River to the north, Joganji River to the south, and the ridge of the Tateyama Mountain Range from Mt. Bessan to Mt. Tombi to the east. The scale of the map is 1/20,000.
For both volcanoes, the volcanic landform was classified based on the interpretation of aerial photographs and detailed digital elevation model data obtained from airborne laser surveys, with reference to information on volcanic geology. We also incorporated erosional landform and mass movement landform into these maps with consideration for use in volcanic erosion control, etc.
3. Products
The LCMV "Nikko-Shiranesan" clearly shows the extent of craters, lava flows, pyroclastic cones, etc., and shows micro-landform such as "steep slope such as the terminal and side cliffs of lava flows" and erosional landform, revealing the detailed form of the volcanic landform.
The LCMV "Midagahara" shows the detailed distribution of lava flows and pyroclastic flow deposition surfaces, and shows glacial depositional landform in high mountain regions and debris avalanche depositional landform in the Tateyama caldera, revealing the unique landform classification of the Midagahara region.
The map paper sizes are A2 for LCMV "Nikko-Shiranesan" and A1 for "Midagahara". These maps will be available for viewing on GSI Maps. Additionally, we plan to provide on-demand inkjet output maps for a fee from the Japan Map Center, and to provide free image data (JPEG format) and numerical data (shapefile format, etc.) from the GSI of Japan's website.
4. Summary
In FY 2024, we produced LCMV "Nikko-Shiranesan'' and ''Midagahara''. These image data and numerical data will be provided free of charge from the GSI of Japan's website in FY 2025, as well as the paid inkjet output maps. These maps and data are expected to be used in future studies of volcanic disaster prevention, volcano research, and education.
Acknowledgements: In creating the LCMV "Nikko-Shiranesan", we received advice from Professor Emeritus Yoichi Nakamura of Utsunomiya University and Associate Professor Norifumi Hotta of University of Tokyo as members of the expert review committee, as well as cooperation from staff of the Mt. Nikko Shirane Volcanic Disaster Prevention Council. In creating the LCMV "Midagahara", we received advice from Professor Tohru Watanabe and Professor Yasuo Ishizaki of University of Toyama as members of the expert review committee, as well as cooperation from staff at the Midagahara Volcanic Disaster Prevention Council. We would like to thank express our gratitude to the above people.