lexusdev7/mlit-river-cameras-jp

MLIT River Cameras JP — frame archive

Time-series archive of still frames from official river cameras operated by Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT), published by MLIT for public viewing:

• Kanto Regional Development Bureau, Watarase River office (渡良瀬川) — 14 cameras
• Kanto Regional Development Bureau, Edogawa River office, Ayase River (綾瀬川) — 6 cameras
• Kyushu Regional Development Bureau, Yamakuni River (山国川) — 8 cameras

Collection

Frames are captured every 3 hours by an automated collector, starting 2026-11-07. Each capture set keeps the source's own per-frame metadata in a cameras.json index file (a manifest: HTTP status, byte size, and the first part of a sha256 fingerprint code computed from the image file).

Rights

The frames are official public camera images published by MLIT for public viewing. All rights in the images remain with the publisher (MLIT and its regional development bureaus). This archive exists for research and time-series reference; consult the source sites for reuse terms.

Layout

frames/<YYYY-MM-DD>/[<HHMMSS>/]<camera_id>.jpg, with a cameras.json index file beside each set (the day's first set sits directly in the day directory).