Snow Grain Size
Measurement Instruments
Measurement Definition: Grain size of snow ice particle - Physical unit: [ mm] - Accuracy unit: [ % ].
| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
| SGLI | Operational +/-50 % | 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 |  |