Full Name Hyperspectral imaging Spectrometer Status Being developed
Instrument Agencies ESA, UKSA Maturity
Instrument Type Hyperspectral imagers Geometry Push-broom scanning
Instrument Technology High resolution optical imager Sampling Imaging
Data Access Open Access Data Format Native
Measurements and Applications 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)
Resolution Summary 50 m Native resolution and for for Sensor-to-Sensor and PICS calibration products; Land climatological product binned to 100 x 100 m, ocean climatological product binned to 200 x 200 m
[Best Resolution: 50m]
Swath Summary 100 km
[Max Swath: 100 km]
Accuracy Summary Absolute radiometric accuracy for land and ocean spectral radiance at L1b : threshold 1%, goal 0.3%; Solar and Lunar Spectral irradiance with ARA < 1% (threshold, 0.3% goal)
Waveband Summary > 200 bands (320-2400 nm); FWHM from 0.2 to 7 nm; SSI <= 8 nm
Instrument Measurements
Measurements Overview
Radiation budgetDownwelling (Incoming) solar radiation at TOA
Upwelling (Outgoing) long-wave radiation at Earth surface
Upwelling (Outgoing) spectral radiance at TOA
Upwelling (Outgoing) Short-wave Radiation at the Earth Surface
Solar Spectral Irradiance
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Earth Radiation Budget click here click here search ECV Inventory records
Instrument Missions
TRUTHS - Traceable Radiometry Underpinning Terrestrial- and Helio- Studies (TRUTHS) (2030 - 2035)