5:15 PM - 6:30 PM
[SVC27-P07] Experiment for understanding of climber’s movement and tendency in Nasu Volcano
Keywords:Nasu Volcano, experiment for understanding of climber's movement, evaluation of climber's exposures
Recently, many climbers are enjoying climbing in Japan, and can approach to an active vent in many volcanoes, for example Mt. Fuji or Mt. Nasu. In the tragic disaster of Ontake Volcano in 2014, it was difficult for local governments to grasp whereabouts of climbers and to conduct rescue and search for victims. The same issue was raised also in the 2019 eruption of Kusatsu-Shirane Volcano. Therefore, it is quite important to grasp whereabouts of climbers in the event of disaster for proper decision of rescue and search.
Experiments to acquire data of climbers have conducted in Mt. Nasu in 2020, named “Mt. Nasu Challenge”. In the experiment, we distribute 2,000 of beacons to climbers, and 15 of receivers which are set in mountain trails detect signals from the beacons, then we can grasp the number and location of climbers who have the beacons. And it took about two hours to grasp locations of 90% of climbers.
In this research, we are going to use the climber’s data for disaster prevention. In the event of disaster, it is possible to reduce the time for grasping climber’s information. In the normal time, local governments can refer the data to make evacuation plans, including establishment of shelters or evacuation routes.
We evaluate exposures of climbers against volcanic hazards, including ash fall, volcanic materials, pyroclastic flow, mad flow, and lava flow, cited from Nasu volcano hazard map by using GIS software. First, we convert hazard map data that have been already published to GIS data, and make spatial analysis with the climber’s data from the experiment. From results of the evaluation, we can make simple damage estimation of climbers.
Experiments to acquire data of climbers have conducted in Mt. Nasu in 2020, named “Mt. Nasu Challenge”. In the experiment, we distribute 2,000 of beacons to climbers, and 15 of receivers which are set in mountain trails detect signals from the beacons, then we can grasp the number and location of climbers who have the beacons. And it took about two hours to grasp locations of 90% of climbers.
In this research, we are going to use the climber’s data for disaster prevention. In the event of disaster, it is possible to reduce the time for grasping climber’s information. In the normal time, local governments can refer the data to make evacuation plans, including establishment of shelters or evacuation routes.
We evaluate exposures of climbers against volcanic hazards, including ash fall, volcanic materials, pyroclastic flow, mad flow, and lava flow, cited from Nasu volcano hazard map by using GIS software. First, we convert hazard map data that have been already published to GIS data, and make spatial analysis with the climber’s data from the experiment. From results of the evaluation, we can make simple damage estimation of climbers.