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This April, 2017, photo provided by the Alaska Division of Geological and Geophysical Surveys shows geologist Katreen Wikstrom Jones using an avalanche probe to measure snow depth at Thompson Pass, Alaska. Researchers in the Pacific Northwest and Alaska are looking for backcountry enthusiasts who want to aid a science mission. A program funded by NASA is recruiting citizen scientists to measure snow levels in mountain terrain. (Gabriel Wolken/Alaska Division of Geological and Geophysical Surveys via AP)

This April, 2017, photo provided by the Alaska Division of Geological and Geophysical Surveys shows geologist Katreen Wikstrom Jones using an avalanche probe to measure snow depth at Thompson Pass, Alaska. Researchers in the Pacific Northwest and Alaska are looking for backcountry enthusiasts who want to aid a science mission. A program funded by NASA is recruiting citizen scientists to measure snow levels in mountain terrain. (Gabriel Wolken/Alaska Division of Geological and Geophysical Surveys via AP)

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