LiDAR data was acquired by Tuck Mapping Solutions, Inc. (TMSI) for the Chemung Watershed and broken down into two AOIs based on the level of processing performed on the dataset. AOI-1 covers approximately 709 square miles, which is the full extent of the acquisition boundary plus a 100-meter buffer around the perimeter of this boundary. AOI-1 was delivered as full-swath, calibrated, and boresighted flight lines in LAS format. A subset of AOI-1, delineated by a buffer around the major stream networks, covers approximately 308 square miles.
RAMPP will make the following products available to FEMA by uploading the digital data to the MIP, where applicable, or via hard drives. The deliverables for this Technical Support Data Notebook (TSDN) submittal include written certification that the topographic data development meets minimum Federal Emergency Management Agency (FEMA) standards and specifications. In cases where data do not meet the required standards and specifications, an explanation is included. Additionally, the related metadata file has been uploaded to the Mapping Information Platform (MIP). Deliverables will include raw point clouds and classified point clouds (see report for details), hydro-lines, low confidence polygons, qa/qc report, survey report and a summary report. Classifications include ASPRS Class 1,2,7,9,11. Acquisition AOI-2 fulfills this dataset (see Page 3 of the Final Topographic Data Developmental Report).
This data set is an LAZ (compressed LAS) format file containing LIDAR point cloud data.