GET app.rid.go.th/reservoir/api/dam?dam_id&date_start&date_end returns a
single dam's whole date range in one response — Mae Ngat's 2009-today
archive is ~4 chunked requests instead of the ~2,900 one-day POSTs the
all-dams path needs. Field names differ from api/dams and are mapped in
parse_dam_range_records, verified equal on spot-checked dates; the range
endpoint also carries DMD_ULevel, the reservoir level in m MSL that
api/dams stopped publishing after ~2013.
scripts/backfill_rid_reservoir.py defaults to the fast per-dam path
(--all-dams keeps the full-fleet crawl, --refresh rewrites stored days).
Already-stored dates are still skipped, junk values are still bounded,
and the consecutive-failure abort still applies.
POST app.rid.go.th/reservoir/api/dams (open, archive >=2009) collected
hourly into rid_dams + rid_reservoir_daily; backfill script fetches only
missing days so reruns repair holes and are safe alongside the live
collector. /api/stats counts the new table via an engine fallback that
works when HII collection is disabled. Mae Ngat (DAM_ID 200103) hit 113%
usable capacity with ~19 MCM/day inflow in the Oct 2024 flood — candidate
features for the next retrain.
grabowski