Florida Breaklines

Product: Breakline data is used to hydroflatten the DEMs created for the FL Peninsular 2018 and FL Hurricane Michael 2020 Lidar Projects. Breaklines are reviewed against lidar intensity imagery to verify completeness of capture. The breaklines from the statewide collection are originally stored by county and were combined to form this statewide dataset. Dataset Description: FL Peninsular 2018 and FL Hurricane Michael 2020 Lidar projects called for the Planning, Acquisition, processing and derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.35 meter. Project specifications are based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.3 and Version 2.1, respectively. The data was developed based on a horizontal projection/datum of NAD83 (2011), State Plane, U.S. Survey Feet and vertical datum of NAVD88 (GEOID12B), U.S. Survey Feet. Lidar data was delivered as processed Classified LAS 1.4 files, formatted to individual 5000 ft x 5000 ft tiles, as tiled Intensity Imagery, and as tiled bare earth DEMs; all tiled to the same 5000 ft x 5000 ft schema.