Hyperspectral Remote Sensing

Hyperspectral remote sensing is a technology with many applications. It is capable of identifying unique spectral signatures of vegetation types, soil minerals, rock formations, and water quality.  Cornerstone Mapping offers tailored flights to acquire, process, and interpret hyperspectral imagery.

Hyperspectral sensors are based on narrow spectral channels, as small as 2nm in width.  Collecting data in the visible and near-infrared spectrum (VNIR) the imagery can provide high spectral resolution, but with lower spatial detail.  High spectral resolution is well suited to identify and separate spectral signatures of vegetation and objects on the ground.  Hyperspectral data is typically collected at 1-2 meter spatial resolution, depending on project size.

The aircraft used to collect the hyperspectral data is equipped with a Fiber Optic Downwelling Irradiance Sensor (FODIS).  The FODIS is mounted in the roof of the aircraft and collects irradiance data for atmospheric correction.  In addition to atmospherically correct data, the hyperspectral sensor is radiometrically calibrated in the laboratory using NIST traceable calibrations.