Microsat SAR for Coastal Waves and Currents
Abstract
Motivated by the need for information and predictions on denied coastlines, we propose to test SAR methodologies for nowcast product,s of waves, currents, and bathymetry useful for initiating forecast models. The overall approach will use snapshot and short-dwell,time-series (spotlighting) SAR imagery products and process the data with existing and new retrieval algorithms, guided by collabora,tors. This effort will utilize newly available satellite data from small (micro) satellites, developed and operated by Capella Spac,e, with extended staring capabilities and planned 1-hour revisit times, and leverage in situ data from ongoing ONR field efforts. Ou,r primary goals are to provide validation and verification that Capela Space SAR data can at least replicate current SAR satellite d,ata quality and derived products and to explore the advantage of frequent revisits for monitoring and coastal model application. Our, specific objectives are to:1.Develop and test techniques to reconstruction wave field properties from time varying Capella SAR imag,ery including maps of wave directional spectra,2.Use wave-phase resolved methods to estimate surface currents and to build nearshore, bathymetry maps, and 3.Assess capability of Capella SAR-derived products with respect to conventional SAR products. We will specifi,cally target measurements on rocky coasts where variability of waves, currents, and bathymetry will challenge SAR retrieval techniqu,es.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 01, 2022
- Source ID
- N000142212136
Entities
People
- C. Chris Chickadel
Organizations
- Office of Naval Research
- United States Navy
- University of Washington