HJW to Provide LiDAR QA/QC Oversight for Santa Clara Countywide Mapping Project

Oakland, CA, April 3, 2006 – HJW GeoSpatial (HJW), Inc. has been awarded a contact by the City of San Jose to provide quality control oversight for a county-wide LiDAR mapping project. LiDAR terrain data will be collected for the entirety of Santa Clara county (approximately 1,303 square miles), and will be used for contour mapping, digital terrain modeling, delineation of watercourse “top of bank”, and the extraction of building polygons. One foot contours will be generated for the valley floor, and five foot contours will be generated for the Santa Cruz and Diablo Range Mountains.

HJW will oversee components of data acquisition, such as flight planning, flight mission parameters, airborne GPS/IMU processing, and calibration issues. LiDAR data accuracy will be tested and reported according to guidelines provided by the National Standards for Spatial Data Accuracy, FEMA, and ASPRS. HJW will use these same standards to assess the accuracy of the contour mapping, TIN and extracted building polygons.