SSI Brown Bag: Mapping Nearshore and Riverine Environments with Topobathymetric LiDAR

Описание: Presented by Andrés Vargas, an expert in airborne remote sensing and LiDAR sensor technology at NV5 Geospatial, as he talks about his work with sensor integration, testing, and calibration and oversees the topobathymetric data processing workflow.

Topobathymetric LiDAR has many important applications, including shoreline and coastal resiliency, habitat restoration and mapping, floodplain modeling, and volumetric analysis. This specialized capability greatly increases knowledge critical to managing riverine and coastal environments.

This technology combines with traditional near-infrared LiDAR to map the entire landscape above and below the water. While this technology shares a lot with traditional airborne LiDAR mapping, there are also significant differences and major challenges introduced. Special considerations need to be paid to acquisition conditions and planning to not only ensure the best remote sensing practices are followed, but also optimize bathymetric performance. Utilizing the green wavelength to map below the surface of the water introduces specialized workflows in both acquisition and data processing to account for correct coverage and refraction of the submerged points.