About this appAbout this app
Automatically translated from Japanese by AI
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Automatically translated from Japanese by AI
Use "Request" to ask the creator to set up tip receiving.
A viewer for unified comparison of satellite imagery before and after disasters with time-series data
Used 1 times2 viewsSince 2026/8
MapZoomer Crisis Viewer is an interactive web application built for the purpose of "Rapid Situational Awareness" in the field during large-scale disasters.
In this operational prototype, using data from the Nepal Large-Scale Flood (Bhoto Koshi-Trishuli Flood) as a case study, we seamlessly integrate three axes on a single screen:
We have implemented an interface that allows intuitive Before/After comparison analysis of satellite images before and after the disaster using a slider.
When you select a disaster-affected location (e.g., Timure) in the left panel, the map center shifts and automatically focuses on the corresponding time on the "Disaster Timeline." Space and time are instantly synchronized.
Smooth comparison of satellite imagery before the disaster (2026-05-27) and after the disaster (2026-08-27).
Switch to 3D terrain display (3D View) with a single button. Enables high-level understanding of landslide and river channel blockage expansion in steep mountainous terrain.
Switch between Japanese UI and English UI with a single tap using the toggle button in the upper right.
Individual Developer (Japanese solo developer)
Based on 30 years of experience in international news reporting, I built this application as an individual developer. Although I have been formally developing web applications and GIS for about a year, I am materializing the strong challenge I felt in the news field: "In a disaster situation where every second counts, I want to understand the situation in the field correctly and quickly."
※This tool is not an official damage assessment or evacuation order. Please confirm announcements from local governments and public agencies.
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