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*Register *https://attendee.gotowebinar.com/register/8713544251285253378 *Abstract: *The U.S. Geological Survey (USGS) National Geospatial Program (NGP) Lidar Base Specification Version 1.0 was published in early 2012, and revised as Version 1.1 in 2014. The notable revisions in version 1.1 were definitions for 3D Elevation Program (3DEP) Quality Levels, alignment with the American Society for Photogrammetry and Remote Sensing Positional Accuracy Standards for Digital Geospatial Data, updating the delivery format to LAS version 1.4, and clarification of several requirements. The version 2.0 update will further align with new industry standards and best practices, define requirements for additional 3DEP products and services, and address new lidar technologies. As a cooperative effort of the 3DEP and the National Hydrography Dataset (NHD) program, the NGP is developing a common data dictionary for both topographic and hydrologic breaklines. The goal is to enhance the integration of the NHD and 3DEP elevation products by enabling the use of common linework to the highest degree possible. This data dictionary is the most exciting update to the specification. Although 3DEP lidar projects require only minimal hydrographic breaklines to be collected for hydro-flattening, those features will be consistently formatted and immediately usable by the NHD as well. This presentation will preview the changes from version 1.1 to version 2.0 and provide an opportunity for attendees to have questions about the specification answered. *Bio:* Karl Heidemann has worked in the lidar industry for over 15 years as a user, data provider, and software architect. He currently is a member of the Topographic Sciences Team at the USGS EROS Data Center. Mr. Heidemann currently chairs the ASPRS Airborne Lidar Committee, is the author of the USGS-NGP Lidar Base Specification, and is a contributing author to the ASPRS Manual of Airborne Topographic Lidar, the ASPRS Positional Accuracy Standards for Digital Geospatial Data, the ASPRS Airborne Topographic Lidar Manual, and the forthcoming 3rd Edition of The DEM User's Manual. -------- David Alvarez “THE FURTHER BACKWARDS YOU LOOK, THE FURTHER FORWARD YOU CAN SEE" Winston Churchill ------------------------------------------------------------------------- This list (CTGIS-L) is an unmoderated discussion list for all CT GIS Users. If you no longer wish to receive e-mail from this list, you can remove yourself by going to http://listserv.uconn.edu/ctgis-l.html