Launch of Future Flood Risk Analysis Service for Climate Change

Gaia Vision Inc. (Headquarters: Shibuya-ku, Tokyo, Representative Director: Yuki Kita) announce that it has developed its own global high-resolution data on future flood risk due to climate change, and will start a flood risk analysis service using the data on December 1, 2022.

Features of the Future Analysis Service for Flood Risk for Climate Change

Extreme heavy rains are increasingly observed around the world, and various studies have shown that the number and impact of floods are actually increasing. There is very little data on such climate physical risks, and it is difficult to use public data. Therefore, we conducted our own flood simulation using river flood hazard modeling technology developed at the University of Tokyo, and succeeded in developing flood risk change data around the world.

This service can analyze changes in risks in the 1.5°C, 2°C, and 4°C scenarios, which are future scenarios for climate change, around the world, and can also respond to sustainability information disclosures such as the Task Force on Climate-related Financial Disclosures (TCFD). By analyzing your own climate and physical risk using highly accurate flood risk data, you can use it for both accountability to investors and internal risk management, contributing to improving corporate sustainability.

Data Features

The flood risk data used in this service is highly accurate and high-resolution global data created by combining cutting-edge flood hazard modeling technology and climate change prediction data analysis technology. With a horizontal resolution of 30 m in Japan and 90 m overseas, which is one of the highest in the world, we have confirmed that past flood cases are expressed with high accuracy. As shown in the figure below, if climate change progresses further, extreme heavy rains will increase in a wide area of the world, including Japan, and there are concerns that flood risk will increase sharply. There was almost no future flood risk data in the world that is required by financial institutions for climate scenario analysis. General climate data includes precipitation and temperature, but does not include river floods, and we have succeeded in developing river flood risk data by performing enormous calculations based on climate science and hydrology.

Changes in extreme precipitation under future 4 degree scenario

■ For companies considering using the service

This service enables companies to quickly provide “high-precision climate physical risks” information, which has been difficult for companies to obtain. If you have any problems with the analysis of climate physical risks or information disclosure, please contact us from the inquiry on our website.

■ Future development

We offer a beta version of the climate physical risk analysis web application “Climate Vision”. The “Future Flood Risk Analysis Service” in this press release will be implemented in Climate Vision around January 2023. In addition, we plan to implement functions such as financial impact assessments necessary for disclosure of sustainability information such as TCFD.