THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
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Cloud type, amount and cloud top temperature >
Cloud top temperature


Measurement Definition*: Temperature of the upper surface of the cloud - Physical unit: [ K ] - Accuracy unit: [ K ].
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
ABI
Advanced Baseline Imager
Operational
Detects clouds, cloud properties, water vapour, land and sea surface temperatures, dust, aerosols, volcanic ash, fires, total ozone, snow and ice cover, vegetation index.Multi-purpose imaging Vis/IR radiometer
Advanced MI
Advanced Meteorological Imager
Operational
Continuous monitoring capability for the near real-time generation of high-resolution meteorological products and long-term change analysis of sea surface temperature and cloud coverage.Multi-purpose imaging Vis/IR radiometer
AIRS
Atmospheric Infra-red Sounder
Operational
High spectral resolution measurement of temperature and humidity profiles in the atmosphere. Long-wave Earth surface emissivity. Cloud diagnostics. Trace gas profiles. Surface temperatures.n/a
HSI (HJ-1A)
Hyper Spectrum Imager
Operational
Hyperspectral measurements for environment and disaster management operations.Multi-purpose imaging Vis/IR radiometer
IASI
Infrared Atmospheric Sounding Interferometer
Operational
Measures tropospheric moisture and temperature, column integrated contents of ozone, carbon monoxide, methane, nitrous oxide and other minor gases which affect tropospheric chemistry. Also measures sea surface and land temperature.n/a
Imager
Imager
Operational
Measures cloud cover, atmospheric radiance, winds, atmospheric stability, rainfall estimates. Used to provide severe storm warnings/ monitoring day and night (type, amount, storm features).Multi-purpose imaging Vis/IR radiometer
MI
Meteorological Imager
Operational
Continuous monitoring capability for the near real-time generation of high-resolution meteorological products and long-term change analysis of sea surface temperature and cloud coverage.Multi-purpose imaging Vis/IR radiometer
MODIS
MODerate-Resolution Imaging Spectroradiometer
Operational
Data on biological and physical processes on the surface of the Earth and in the lower atmosphere, and on global dynamics. Surface temperatures of land and ocean, chlorophyll fluorescence, land cover measurements, cloud cover (day and night).n/a
MSU-GS
Multispectral scanning imager-radiometer
Operational
Measurements of cloud cover, cloud top height, precipitation, cloud motion, albedo, vegetation, convection, air mass analysis, tropopause monitoring, stability monitoring, total ozone and surface temperature, fire detection.Multi-purpose imaging Vis/IR radiometer
SEVIRI
Spinning Enhanced Visible and Infra-Red Imager
Operational
Measurements of cloud cover, cloud top height, precipitation, cloud motion, vegetation, radiation fluxes, convection, air mass analysis, cirrus cloud discrimination, tropopause monitoring, stability monitoring, total ozone and sea surface temperature.Multi-purpose imaging Vis/IR radiometer
SGLI
Second-generation Global Imager
Operational
+/-3
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
FCI
Flexible Combined Imager
Being developed
Measurements of cloud cover, cloud top height, precipitation, cloud motion, vegetation, radiation fluxes, convection, air mass analysis, cirrus cloud discrimination, tropopause monitoring, stability monitoring, total ozone and sea surface temperature.Multi-purpose imaging Vis/IR radiometer
MSU-GS/VE
Multispectral scanning imager-radiometer
Approved
Operational metrology, hydrology, climate monitoring and environmental monitoringMulti-purpose imaging Vis/IR radiometer
HIRS/4
High Resolution Infra-red Sounder/4
No longer operational
Atmospheric temperature profiles and data on cloud parameters, humidity soundings, water vapour, total ozone content, and surface temperatures. Same as HIRS/3, with 10 km IFOV.n/a
IRAS
InfraRed Atmospheric Sounder
No longer operational
Atmospheric sounding for weather forecasting.n/a
* Description adapted from WMO.
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