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Download Terrestrial snow mass radar mission concepts
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Terrestrial snow mass radar mission concepts : ongoing activities and potential synergy with the snowfall community Presenter: Chris DERKSEN Address: 4905 Dufferin Street, Toronto, Ontario M3H5T4 Country: Canada Email: [email protected] Authors: Chris Derksen (1) Stephane Belair (1) Joshua King (1) Camille Garnaud (1) Lawrence Mudryk (1) Yves Crevier (2) Melanie Lapointe (2) Ralph Girard (2) Juha Lemmetyinen (3) Simon Yueh (4) Affiliations: (1) Environment and Climate Change Canada (2) Canadian Space Agency (3) Finnish Meteorological Insitute (4) Jet Propulsion Laboratory Preference: Oral presentation The terrestrial snow remote sensing community has long grappled with how to prioritize observational requirements and technological solutions due to differing needs related to snow extent (SE) versus snow water equivalent (SWE), and the tradeoffs between spatial resolution and revisit time which differ for alpine hydrological applications versus hemispheric climate and operational land surface modeling needs. A single observing strategy simply cannot meet all these requirements. Environment and Climate Change Canada (ECCC) recently identified moderate resolution (~ 1 km), daily hemispheric SWE as a priority observational gap which limits operational environmental monitoring, services, and prediction. This presentation will provide an overview of current science activities at ECCC in support of the development of radar mission concepts in partnership with the Canadian Space Agency (CSA) to address this observational gap. Activities include an Observing System Simulation Experiment (OSSE) to identify the sensitivity of land surface data assimilation systems to the configuration (i.e. swath width, resolution, revisit time, snow mass retrieval uncertainty) of potential satellite measurements, and the analysis of experimental airborne datasets in support of the forward modeling of radar signatures and the potential retrieval of SWE. Emerging international partnership opportunities will also be presented, including how a spaceborne radar mission designed to address terrestrial snow could potentially contribute to the observational needs of the snowfall remote sensing community.
