Streamflow Survey

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We conduct hydrological survey which consists of various measurements; streamflow involving the IRDIMS (Integrated Real-time DIscharge Measurement System), sediment load, soil moisture, and evapotranspiration throughout the all country.

※ Precipitation and water level are measured by MOLIT and groundwater is measured by K-water.

Streamflow

Streamflow is measured by the various methods and instruments.
Procedure
  • methodsCup-type current meter (Price) measurements by wading
  • methodsAcoustic doppler current meter measurements by wading
  • methodsADCP measurements from moving boat
  • methodsCurrent meter measurements from bridges
  • methodsCurrent meter measurements from bridges
  • methodsADCP measurements by stationary method
  • methodsADCP measurements from tethered boats
  • methodsADCP measurements from tethered boats
  • methodsFloat measurements from bridges
  • methodsFloat measurements from bridges
  • methodsDrilling holes for current meter measurements from ice cover
  • methodsADCP measurements from ice cover
equipments
results
Measurements
Year Han River Nakdong River Geum River Yeongsan River Total
2006 4 1 0 0 5
2007 6 1 1 0 8
2008 6 2 2 1 11
2009 7 3 2 1 13
2010 7 4 2 3 16
2011 10 18 3 7 38
2012 12 21 6 7 46
2013 12 22 7 8 49
2014 15 22 7 8 52
2015 16 22 7 11 56
2016 17 23 8 12 60
2017 19 23 9 12 63
results
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