The CREST- Snow Analysis and Field Experiment (CREST-SAFE) is being carried out to collect the long term intra-seasonal microwave and surface observations to analyze the snow transitional period from dry, wet, and to melting snow conditions. CREST-SAFE is setup in the backyard of the National Weather Service office at Caribou, ME using high frequency (37 and 89 GHz), dual polarized microwave radiometers to develop, improve and validate the snow retrieval algorithms. In addition to microwave radiometers, the field experiment site equipped with Snow Pillows (to measure Snow Water Equivalent), ultrasonic snow depth sensor, Infrared Thermometer (for Snow skin temperature), Net Radiation Sensors, Humidity, Temperature, snow temperature profiler (measures temperature at every 5 cm of snow layer), snow grain size, density, and network camera for real time remote monitoring of the site.

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