NRESi Colloquium: NASA SnowEx Mission: Towards spaceborne monitoring of seasonal snow. Hans-Peter Marshall, Boise State University

Friday, April 9, 2021 - 3:30pm to 4:30pm
Online only: (

Dr. HP MarshallNASA SnowEx’s overarching objective is to measure and monitor snowpack properties from space, in particular snow water equivalent and albedo. To achieve this, a series of coincident field, airborne, and modeling campaigns have been initiated. These campaigns are testing a wide range of snow remote sensing technologies, with a focus on a pathway to eventual spaceborne deployment. The NASA snow remote-sensing community has agreed that no single sensor or approach solves the spaceborne snow monitoring problem; therefore, we are testing approaches that combine multiple remote sensing products with field observations within the framework of land surface models. SnowEx 2017 focused efforts on two western Colorado sites; Grand Mesa and nearby Senator Beck Basin, targeting impacts of forest cover on remote sensing approaches. SnowEx 2020 was spatially and temporally broader. It linked a second Intensive Observation Period (IOP) at Grand Mesa with an L-band InSAR time-series experiment for thirteen locations scattered across the Contiguous United States’ western half. SnowEx 2021 will continue the L-band time series, expand efforts into northern prairie and agricultural environments, collect temporally and spatially novel albedo measurements, and advance snow modeling and synthesis efforts.

The Natural Resources & Environmental Studies Institute (NRESi) at UNBC hosts a weekly lecture series at the Prince George campus. Anyone from the university or wider community with interest in the topic area is welcome to attend. Go to to view the presentation remotely.

Past NRESi colloquium presentations and special lectures can be viewed on our video archive, available here.

Contact Information

Al Wiensczyk, RPF
Research Manager,
Natural Resources and Environmental Studies Institute
Phone: 250-614-4354
Phone: 250-960-5018

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