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Webinar: Scaling satellite observations of giant kelp forests for global-level analyses
Wednesday, 27 July 2022, 3:00
Wednesday, July 27, 2022. 3:00 PM. Webinar: Scaling satellite observations of giant kelp forests for global-level analyses. Henry Housekeeper, UCLA. Sponsored by NOAA Science Seminar Series. More information here. Register here.
Giant kelp populations support productive and diverse coastal ecosystems at temperate and subpolar latitudes in both hemispheres but are vulnerable to changing climate conditions, as well as direct human impacts. Satellite imagery enables the mapping of existing and historical giant kelp populations, but extracting the coverage of giant kelp canopies from large satellite datasets requires automated approaches for kelp classification that are robust within dynamic coastal environments. In this talk, I'll present an update on collaborative research to automate giant kelp image classification, including a Zooniverse citizen science tool with the NASA Floating Forests project, a Google Earth Engine automated approach based on a spectral mixture analysis, and a preliminary machine learning algorithm trained using citizen science data products. I'll compare performance using validation data that spans over 2,700 km of coastline, and I'll discuss the next steps for scaling these tools to support global kelp forest research.