A snow pillow is a device for measuring snowpack, especially for automated reporting stations. The snow pillow measures the water equivalent of the snow pack based on the weight of the overlying snow. It represented the standard for automatic SWE measurements despite various limitations such as not very precise measurements for bridging phenomena, significant sizes and weights, need for perfectly flat terrain, and, most importantly, poor representativeness of the large-scale data. Finapp overcomes all these limitations with CRNS probes that provide large-scale SWE data with a lightweight and compact probe.
