Case Report: ESM30 in lake monitoring

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Courtesy of Oceanalpha Co., Ltd.

Background

Wuhan is the capital city of Hubei province in central China and has 166 lakes that cover 2,217 square km (856 square miles) and approximately 25% of the city.  This surface water coverage is one of the world’s highest.  

The Wuhan Environmental Protection Bureau (WHEPB website: http://www.whepb.gov.cn) is responsible for monitoring the surface water quality within the city borders and does this by monitoring a subset of 50 lakes on a yearly basis for temperature, conductivity, pH, dissolved oxygen and turbidity.  Before using the Oceanalpha ESM30 Water Quality Sampling & Monitoring Boat, WHEPB needed three months to do this by taking a manned boat into each lake.

Solution

The Oceanalpha ESM30 Water Quality Sampling & Monitoring Boat works autonomously based on GPS waypoint navigation that a user programs with a portable control station from the shore.  The boat contains a multi-parameter sonde connected to a flow cell and an on-board pump.  Using the ESM30, WHEPB surveyed 50 lakes in 14 days for a 640% improvement in efficiency.  As an additional safety benefit, workers did not need to go onto the water.

Equipment

  • ESM30 Water Quality Sampling & Monitoring Boat
  • ESM30 Control Station (included)
  • Multi-parameter water quality sonde (included)
  • Flow cell (included)

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