With GIS, you can analyse topographic, environmental, demographic and land use data to help you with your business decisions and project management.eed and pest management. Invasive weeds and pests can lead to massive economic costs. GIS is used to determine the areas infested by mapping in the field (recording perimeters of infested areas or recording individual points/sightings) or using satellite imagery/remote sensing.
Definition of lidar. : a device that is similar in operation to radar but emits pulsed laser light instead of microwaves.
LiDAR speed measurement takes place in these steps: 1  On a trigger pull, the gun sends a series of short (typically 30 nanosecond) laser pulses (100-600 per second) and starts a timer. 2  The gun stores the time that each pulse's reflection reached the gun's detector.f the officer's unsteady hand makes the LiDAR beam sweep from the first vehicle to the second, forward vehicle in a single read, the LiDAR gun might produce a reading as high as 80 MPH, depending on the distance between the vehicles. The officer may think this is the target vehicle's actual speed and ticket the driver.