Remote Sensing Portal

Detecting climate change with remote sensing instruments, providing state-of-the-art surveillance imagery for security and defense, or getting the … more

SIRCUS is a reference facility for the calibration of detectors and radiometers for spectral irradiance responsivity and spectral radiance … more

The Sensor Science Division of NIST realizes and maintains the unit of optical power (watt) with the NIST reference cryogenic radiometer, Primary … more

STARR II is a facility for measuring reflectance and scattering of materials in the ultraviolet to short-wave infrared wavelength range (230 nm to … more

Spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. While … more

Radiometric and photometric measurements require defining apertures. The accuracy to which these measurements can be accomplished requires … more