Which type of infrared payload is designed to measure absolute temperature?

The correct response is based on the specific functionality of different types of infrared payloads. A radiometric infrared payload is specifically designed to measure absolute temperature by detecting the thermal infrared radiation emitted by objects. This means it can provide quantitative data on temperature, which is essential for applications such as environmental monitoring, agriculture, and search and rescue operations.

Radiometric sensors operate by calibrating the detected infrared wavelengths to an absolute temperature scale, allowing scientists and operators to assess thermal conditions with precision. This capability is not available in the other types of infrared payloads.

Thermal payloads, while they can detect temperature variations, may not provide accurate absolute temperature readings without additional calibration. Hyperspectral and multispectral sensors are primarily focused on capturing data across various wavelengths of light to analyze material properties or signatures but do not measure temperature directly. Their primary use is in surface characterization and material identification rather than precise thermal measurement.