[Update #2 - November 27] DIAS System is Currently DownNew!!
[Update #2 - November 27] The system outage has been identified as resulting from a voltage drop that occurred […]
Temporary Suspension of Quasi-Real-Time Data Distribution for XRAIN, C-band, and Telemetry
Due to issues in the data transmission route from the Ministry of Land, Infrastructure, Transport and Tourism […]
[Resumed] Temporarily Unavailable: Part of the d4PDF_5kmDDS_JP Dataset Updated
[2025/10/20 16:40 (JST/GMT+9) 2nd post] The update and replacement of the d4PDF_5kmDDS_JP dataset have been co […]
Dataset of direct measured downward global solar radiation in the Western Pacific Ocean (SOLAR_RADIATION_WP) now available
This dataset provides downward, global solar radiation flux observed mainly in the Western Pacific Ocean from […]
Nationwide Probabilistic Flood Discharge Dataset (d4Flood) now available
This dataset provides estimates of flood peak discharges corresponding to various return periods across all ri […]
Part of RCDSJRA-55 has been replaced
A data issue was found in a part of the "5-km regional climate downscaling for Japanese regoin using JRA-55" ( […]
"Forest structure and crown dataset of 22 Japanese natural forests" (Moni1000_UAVLiDAR_Crowns) Updated
The tree census dataset from the Ministry of the Environment's Monitoring Sites 1000 project (Japanese page on […]
DIAS Support Desk – Temporary Suspension During Summer Holidays
The DIAS Support Desk will be unavailable during the following period due to the summer holidays: We will begi […]
Temporary Unavailability of XRAIN Data and S-uiPS Application (Aug. 29 – Sep. 1)
Due to legally mandated inspections at the facility hosting the DIAS system, certain services will be temporar […]
[Aug.27 Update] Scheduled System Maintenance: Suspension of DIAS Services (August 21–26, 2025)
[Update 2025/08/27 09:00 JST/GMT+9] All systems have now been restored. If you encounter any issues that appea […]