CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- VIIRS
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Full Name
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Visible/Infrared Imager Radiometer Suite
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Status
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Operational
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Instrument Agencies
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NOAA , NASA
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Maturity
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Medium Heritage
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Instrument Type
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Imaging multi-spectral radiometers (vis/IR)  and Ocean colour instruments
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Geometry
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Cross-track scanning
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Instrument Technology
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Multi-purpose imaging Vis/IR radiometer
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Sampling
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Imaging
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Data Access
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Open Access
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Data Format
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HDF5
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Measurements and Applications
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Global observations of land, ocean, and atmosphere parameters: cloud/weather imagery, sea-surface temperature, ocean colour, land surface vegetation indices.
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Resolution Summary
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400 m - 1.6 km
[Best Resolution: 400m]
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Swath Summary
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3000 km
[Max Swath: 3000 km]
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Accuracy Summary
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SST 0.35 K
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Waveband Summary
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VIS - TIR: 0.4 - 12.5 µm (22 channels)
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| VIS (~0.40 µm - ~0.75 µm) |
| NIR (~0.75 µm - ~1.3 µm) |
| SWIR (~1.3 µm - ~3.0 µm) |
| MWIR (~3.0 µm - ~6.0 µm) |
| TIR (~6.0 µm - ~15.0 µm) |
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Instrument Measurements
Measurements Overview
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| Category | Parameter |
| Aerosols | Aerosol optical depth (LT, HT, LS, HS&M, TC)   |
| Aerosol absorption optical depth (LT, HT, LS, HS&M, TC) |
| Albedo and reflectance | Earth surface albedo |
| Atmospheric Temperature Fields | Cloud base height |
| Atmospheric Winds | Wind vector over land surface (horizontal) |
| Cloud particle properties and profile | Cloud optical depth |
| Cloud type, amount and cloud top temperature | Cloud imagery |
| Cloud type |
| Cloud cover |
| Cloud top height |
| Multi-purpose imagery (land) | Fire fractional cover |
| Land surface imagery |
| Multi-purpose imagery (ocean) | Ocean imagery and water leaving spectral radiance |
| Ocean colour/biology | Ocean chlorophyll concentration |
| Radiation budget | Upward short-wave irradiance at TOA |
| Upwelling (Outgoing) long-wave radiation at Earth surface |
| Sea ice cover, edge and thickness | Sea-ice type |
| Sea-ice surface temperature |
| Snow cover, edge and depth | Snow cover |
| Soil moisture | Soil moisture at the surface |
| Surface temperature (land) | Land surface temperature |
| Fire temperature |
| Surface temperature (ocean) | Sea surface temperature |
| Vegetation | Normalized Differential Vegetation Index (NDVI) |
| Leaf Area Index (LAI) |
| Vegetation type |
| Land cover |
| Soil type |
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Instrument Missions
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