How the SSG-2 works

The scale of the SSG-2 is based on the principle of a load cell – a transducer which creates an electrical signal proportional to the force applied to the cell.

The SSG-2 consists of seven aluminium panels – 80 x 120 cm each – which are supported by an underlying frame. A scale with four load cells and the data acquisition device are located underneath the central panel. The other six panels are arranged around the central part to create a uniform surface without any ledges around the sensor that would create stress within the snowpack and result in erroneous readings. The aluminium panels are perforated to allow water to percolate to the ground. The used material also minimizes thermal differences between the sensor and the ground.