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GCOS Land ECV - River Discharge

River-discharge measurements have essential direct applications for water management and related services, including flood protection. They are needed in the longer term to help identify and adapt to some of the most significant potential effects of climate change. The flow of freshwater from rivers into the oceans also needs to be monitored because it reduces ocean salinity, and changes in flow may thereby influence the thermohaline circulation.

Product Requirements:

  • River Discharge:
    • Frequency:  Daily
    • Resolution:  Per river
    • Required Measurement uncertainty:  10 % (relative)
    • Standards/References:  ISO/TC 113: WMO (2010) WMO (2008a) WMO (2009)
    • Entity (in situ):  WHYCOS
  • Water Level:
    • Frequency:  Daily
    • Resolution:  100 m
    • Required Measurement uncertainty:  10 cm
    • Stability (per decade unless otherwise specified):  1 cm/yr
    • Standards/References:  ISO/TC 113: WMO (2010) WMO (2008a) WMO (2009)
    • Entity (in situ):  WHYCOS
  • Flow Velocity:
    • Frequency:  Few times per year for station calibration
    • Resolution:  Per river
    • Required Measurement uncertainty:  10 % (relative)
    • Standards/References:  ISO/TC 113: WMO (2010) WMO (2008a) WMO (2009)
    • Entity (in situ):  WHYCOS
  • Cross-Section:
    • Frequency:  Few times per year for station calibration
    • Resolution:  Per river
    • Required Measurement uncertainty:  10 % (relative)
    • Standards/References:  ISO/TC 113: WMO (2010) WMO (2008a) WMO (2009)
    • Entity (in situ):  WHYCOS

Networks:

Data Sources: