Fillstate

Reservoir in Vietnam

GDW 25694

Identifier
GDW 25694
Registered area
0.141 km²
Registered capacity
2 million m³
Outline
Global Dam Watch

Water level today

The satellite measures the height of the water surface above sea level. Every figure carries how old it is, because the age of a level is that level’s error.

Observed

96.401mplus or minus 0.15

34 days oldProvisional
Estimated now

96.401 m

34 days old
Confidence

96 of 100

Calibrated

80 percent band. Out-of-fold coverage 0.805 [0.759, 0.848] at 176 gauged reservoirs; weakest held-out country India and other at 0.511, so the band is calibrated where the labels are dense and not everywhere. Measured on archive-confirmed observations.

Where the level is heading

A three-to-four week outlook, with the range the level falls in 80 times out of 100. It widens with distance, because further ahead is less certain.

Level in metres above sea level. The band is the range the level falls in 80 times out of 100, and it was measured to hold 68 times in 100 at three weeks.
LeadLowMedianHigh
7 days96.2996.4096.55
14 days96.2596.4096.61
21 days96.1796.4096.72
28 days96.1996.4096.63

How this record was made

Every number on this page was computed once, under a frozen specification, from the sources listed here. The page computes nothing.

Validation
No nearby gauge. The error budget is carried from reservoirs like this one, which is a weaker claim.
Continuity
No nadir track crosses it, so without SWOT only the surface area survives, not the level.
If SWOT stops
No Sentinel-3 or Sentinel-6 track crosses this reservoir. Without SWOT only the water area survives; no elevation series continues.
Input tier
universal
Specification
2026.09.d
SWOT product version
D
Computed
2026-09-21T08:52:16.160070Z
Ages computed at
2026-09-22T22:02:57.731653Z
Next pass expected
2026-08-30

Sources

  • SWOT L2 HR LakeSP, LakeSP prior, RiverSP, PIXC, PIXCVec, NASA Earth science data policy: CC0 unless marked otherwise; commercial use and redistribution permitted
  • Hydrocron (PO.DAAC time-series API over SWOT products), NASA Earth science data policy, as the products it serves; no terms, rate limits or bulk restrictions stated
  • ICESat-2 ATL13 V007 (NSIDC), NASA Earth science data policy, CC0
  • Global Dam Watch v1.0, CC BY 4.0
  • SWOT Prior Lake Database v2.02, ETALAB 2.0 (Licence Ouverte): commercial use with attribution
  • SWORD v17c, CC BY 4.0
  • Hydroweb lakes and rivers, ETALAB 2.0
  • Copernicus Sentinel data: Sentinel-1, 2, 3, 6 level-1 and level-2 files, EU Legal Notice on the use of Copernicus Sentinel Data and Service Information: free, full and open; no commercial restriction
  • Copernicus Data Space Ecosystem: OData catalogue, download and identity endpoints, Sentinel data routes to the EU Legal Notice; catalogue search and file download only
  • JRC Global Surface Water, Produced under the Copernicus Programme; provided free of charge, without restriction of use
  • Köppen-Geiger 1 km climate classification, CC BY 4.0
  • Chronos-2 (Amazon), Apache 2.0

The rest of the record

The observation series behind this level, every version this record has been served as, and the nadir series that continues it are served with a key.