Requirement #823 

Values

This requirement is historic and not longer current

For variable: Soil moisture at surface

In application: 2.5 Atmospheric Climate Monitoring

Application-dependent Technical Priority: 0.5

Goal Breakthrough Threshold Priority
Uncertainty 0.04 m3 /m3
Layer/s Quality
Coverage Quality
Stability/decade (if applicable)
Horizontal Resolution 1 km 25 km
Vertical Resolution
Observing Cycle 24 h
Timeliness

 

Validated: 8/8/25 Source: GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016)
General Comment: Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level. Requirements for stability in the GCOS IP are specified in different units than in OSCAR/requirement. Confidence: reasonable
Def: :Not firm, but based on a strong heritage of experiments with similar data
Application Area Comment: Horizontal Coverage Comment:
Observation Comment: Performance Comment: 8 Aug 2025: PoC of AA 4.2 requested to archive these requirements under 2.5, because this GCOSTOPC variable will be moved under AA .4.2. The change was supported by PoC and the owner of AA 2.5.
Specifications
  • Domain: Terrestrial
    • Subdomain: Land surface