Solar Spectral Irradiance
Measurement Instruments
Measurement Definition: Wavelength-dependent energy input to the top of the Earth's atmosphere, at a standard distance of one Astronomical Unit from the Sun - Physical unit: [ W m-2 nm-1]
Thematic Links
| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
| HIS | Being developed | Pushbroom-type dual-prism Imaging Spectrometer with high radiometric accuracy and medium Signal-to-noise Ratio, operating from UV (320 nm) to SWIR (2400 nm) , based on a single MCT Detector/focal plane. The HIS aims at accurate spectral imaging on land and ocean for climatological background radiometric data acquistion and supporting cross-calibration with other stellites/sensors and on PICS/instrumented sites with highest resolution (50 m) | n/a |  |