Inspection of Hydrological Survey Instruments

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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.

Inspection of Hydrological Survey Instruments

The hydrological survey instruments must be inspected to enhance accuracy of sensors by River Act. The HSC inspects the various hydrological survey instruments; precipitation gauge, water level gauge, velocimeter, sediment load sampler, and etc.
History of Inspection
Year 2009 2010 2011 2012 2013 2014 2015 2016 Total
Water level gauge 1 139 372 364 194 547 389 334 2,340
Precipitation gauge 97 194 180 175 165 129 221 193 1,354
Total 98 333 552 539 359 676 610 527 3,694
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