SPASnow analysis system（Snow Pack Analysing System，SPA）

Measurement elements:

◆Snow water equivalent（Snowwater equivalent，SWE

）◆Snow density（Snow

density）◆

Ice and liquid water content(Ice and water content)◆

Snow Depth(Ice and water content)SPAIt is a revolutionary snow water feature monitoring system that can measure snow water equivalent（SnowWater Equivalent, abbreviated asSWE）Continuous monitoring of snow density, snow depth, and ice and water content in snow.SPAThe system is mainly composed ofSPASensors（SnowPack Analyzer, abbreviated asSPA）Composed of an impedance analysis box and a snow depth sensor, among which2SPAThe number of sensors is1~4

Yes, what is configured in our regular versionindividualSPASensors.SPASuitable for long-term in-situ observation, so the installation site and requirements will be relatively strict. The shape of the sensor is flat and linear, with a width of56cm, Long3~10Rice (standard)Rice). Snow is mainly composed of three media: ice, liquid water, and air;

SPABy measuring the complex impedance of ice, liquid water, and air in snow under high-frequency electromagnetic waves, the content of ice and liquid water as well as the density of snow can be determined; Combine snow depth to obtain snow water equivalent. The theoretical basis is the dielectric constant of ice, liquid water, and air at high frequencies（210KHZOr higher) is different.SPAThe system can customize different versions according to user requirements, usually we followindividualSPAThe configuration made is the regular version. The main frame (pole) is used to fix the chassis (data acquisition), snow depthSPAThe impedance analysis box of the system, etc

SPASensors are installed around the main pole in two forms: horizontal installation and inclined installation. Snow depth is fixed on the cross arm of the main pole andSPASensors combined with observation.