Special speaker this week. ESOC coffee hour is meeting in person. Weekly 9-10am on Wednesdays in the ESOC Reading Room, Ekeley W230. Please email Claire Waugh (waughc@colorado.edu) for information.

Title: Linking processed imagery from Google Earth Engine using USGS river gage data: Improvements for river morphology studies in the RIMORPHIS project

Toby Minear and Sarah Lundell will be speaking about a project focused on building the “Finding Images from Linked Hydrology”, or FILH tool to filter Landsat and Sentinel-2 optical imagery from Google Earth Engine using hydrologic information, in this case from the USGS National Water Information System. The developed filter includes finding images during periods that exceed a user-input discharge threshold, or images within a range of discharges as well as determining dates of usable satellite imagery (e.g. overpass, cloud cover, etc). The FILH tool enables the analysis of water extent based on discharge rates but could be modified to include other river information if desired (e.g. measured river widths, velocities, stage, etc.) and is being incorporated into the NSF-funded River Morphology Information System (rimorphis.org).

ESOC researchers, post-docs and graduate students gather for conversation and to discuss research. Occasional guest speakers are invited to give short presentations on topics of interest.