QL1 and QL2 Elevation-Derived Hydrography for California:Benefits and Considerations-CalGIS2026

California’s Hydrography Data Stewardship Team, a partnership between the Department of Water Resources and California State Universities, is transforming the state’s foundational water data. A recent pilot project tested QL 1 and QL 2 elevation-derived hydrography (EDH) produced from high-quality LiDAR, exploring both its benefits and feasibility under USGS specifications. Join us to see how the results are helping to shape California’s next generation of hydrography.