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Solution

Water level and flow

Measurement stations for water level and discharge in lakes, rivers, canals, dams and locks. With radar above the surface or pressure sensors below it, we measure the level around the clock – and the flow is either calculated or measured directly.

Detail from our example map. All values are made up.

What we measure

The right method depends on the watercourse, the ice conditions and where the equipment can be mounted.

  • Water level by radar

    A radar sensor above the water surface measures the level without touching the water.

  • Water level by pressure

    A pressure sensor below the surface, when there is nothing to mount a radar on.

  • Discharge

    Radar measuring surface velocity and level, or flow calculated from the level and a rating curve.

  • Water temperature

    Temperature in the water, often from the same sensor that measures the level.

  • Water quality

    Turbidity and conductivity to follow up sediment and discharges, for example during dredging.

  • Levelling surveys

    Checking the station’s zero against benchmarks, so the levels can be trusted.

What your data can look like

The water level during a week with heavy rain. When the level passes the alarm level, an alarm goes out at once.

Example with made-up values.

About live data pages →
Water level in the riverLast week, with alarm levelExample data
Alarm level 1.90 mAlarm Wed 20:092.05 m
Water level in the river
TimeWater level
Monday 00:001.32 m
Monday 12:001.32 m
Tuesday 00:001.32 m
Tuesday 12:001.32 m
Wednesday 00:001.31 m
Wednesday 12:001.49 m
Thursday 00:002.03 m
Thursday 12:001.96 m
Friday 00:001.83 m
Friday 12:001.69 m
Saturday 00:001.60 m
Saturday 12:001.52 m
Sunday 00:001.47 m
Sunday 12:001.43 m
Monday 00:001.40 m

How we deliver

The same person follows your station from the first sketch to service.

  1. Design

    Choice of method for the site, ice and watercourse, and placement of the equipment.

  2. Installation

    Installation, levelling and commissioning.

  3. Data collection

    Data via telemetry to your system or a live data page, with alarms at high levels.

  4. Service

    Service, levelling surveys and remote troubleshooting under an agreement.

Frequently asked questions

Radar or pressure sensor?

Radar measures without touching the water and is not affected by silt or ice in the water. Pressure sensors work where there is nothing to mount a radar on. We help you choose.

Can the station raise alarms at high levels?

Yes. The logger can raise an alarm when the level passes a threshold, and the values can be shown on a web page in real time.

Do you survey existing stations?

Yes. We check the stations’ zero level against benchmarks and adjust it if needed.

Measuring water level or flow?

Tell us about the watercourse and what the measurement is for, and we will suggest a method and equipment.