| CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
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Measurements > Snow and Ice >
Snow cover, edge and depth >
Snow surface temperature
  | Measurement Definition*: Temperature of the surface of the snow mantle - Physical unit: [ K ] - Accuracy unit: [ K ]. |
| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
Imager (INSAT 3D)
Very High Resolution Radiometer | Operational
| Cloud cover, severe storm warnings/monitoring day and night (type, amount, storm features), atmospheric radiance winds, atmospheric stability rainfall. | n/a |  |
SGLI
Second-generation Global Imager | Operational
+/-2 | Medium resolution multi-spectral imaging of land, ocean and atmosphere. SGLI-VNR is an optical sensor capable of multi-channel nadir observation at wavelengths from near-UV to NIR and forward or backward polarization observation at red and near infrared wavelengths (Push-broom scanning). SGLI-IRS is an optical sensor capable of multi-channel nadir observation at wavelengths from SWIR to TIR wavelengths (Cross-track scanning). | n/a | |
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* Description adapted from WMO.
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