Image showing the Yetholm Mains, Bowmont Water, Scottish Borders

Water level , water temperature, air temperature and electrical conductivity are recorded at the hydrological monitoring station at Yetholm Mains.

The water monitoring station at Yetholm Mains, Bowmont Water, was installed in January 2012 as part of a network of gauging stations in the Bowmont Valley. These hydrological stations, along with the automatic weather station at Sourhope, cameras and rain gauges are providing continuous monitoring data in order that we can evaluate the effectiveness of Natural Flood Management (NFM) techniques implemented in the valley.

Latest readings

Air TemperatureAir Temperature (°C) Air Temperature
Water TemperatureWater Temperature (°C) Water Temperature
Flow levelFlow Level (m) Flow Level (m)
Electrical ConductivityElectrical Conductivity (uS cm-1) Flow Level (m)


Readings from the last 7 days and what do they mean?

Air Temperature(oC)Air Temperature

Air temperature is measured because it is a) the main factor governing water temperature and b) the sensor used to measure water depth requires this data.

Water Temperature(oC)Water Temperature

Water temperature is measured because it is a) an important factor governing life in aquatic communities and b) is essential parameter used to calibrate the electrical conductivity data.

Flow Level(m)Flow level

The water level provides an indication of the magnitude of the flow in-stream and can relatively easily be converted into discharge to enable the dissolved solids and load to be calculated.

Electrical Conductivity (uS cm-1)

Electrical Conductivity

Electrical conductivity gives a good indication as to what the stream is carrying in relation to dissolved load. High values represent high load and vice versa. Values are often higher in summer when levels are low and the dissolved load is more concentrated. In winter the levels are often lower due to dilution events through rainfall or snowfall.