- Metric Name:  Canopy Veg Cover

- Data Vintage:  Summer 2020

- Unit Of Measure: percent | Min: 0 | Max: 100

This layer represents horizontal cover fraction occupied by tree canopies. Maps community type & fire regime, as well as available habitat for tree-dwelling species.

Creation Method: Each forest structure metric was derived directly from airborne lidar data, hosted by the USGS 3D Elevation Program. However, these data are only available for a small fraction of California’s 423,970 km² area. To overcome this, we trained deep learning odels—a form of pattern recognition—to identify these forest structure patterns in satellite imagery, then mapped each metric statewide.

These algorithms are of the U-net family of neural network architectures that perform pixel-wise regression and classification tasks. The satellite data includes imagery from Sentinel-1 C-band radar sensors and Sentinel-2 multispectral sensors at 10 m spatial resolution, collected in Fall 2019. Future versions will include imagery from PlanetScope multispectral sensors at 3 m resolution.

Downloaded from California Forest Observatory - Organizations - WIFIRE Commons Data Catalog (sdsc.edu). For more information, go to https://forestobservatory.com/about.html#about

- Credits:  California Forest Observatory (Salo Sciences), 2020

California Forest Observatory - Salo Sciences: 
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