THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
Measurements > Atmosphere >
Atmospheric Humidity Fields >
Water vapour imagery


Measurement Definition*: Level-1 product (not a geophysical parameter). Multi-channel imagery covering wavelengths in the range 0.4-14 µm including water vapour bands for atmospheric tracing in clear-air at more levels (e.g., for winds) - Accuracy expressed as Modulation Transfer Function (MTF) at the Nyquist spatial wavelength (twice the resolution). Actually [ MTF-1 ] is used, so that smaller figures correspond to better performance, as usual.
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
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
AHI
Advanced Himawari Imager
Operational
Measures cloud cover, cloud motion, cloud height, cloud properties, water vapour, rainfalll, sea surface temperatures and Earth radiation, dust, aerosols, volcanic ash, fires, snow and ice cover.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
* Description adapted from WMO.
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