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CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
Measurements
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Atmosphere
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Atmospheric Temperature Fields
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Temperature of tropopause
Measurement Definition*: Atmospheric temperature at the height of the surface separating the troposphere from the stratosphere - Physical unit: [ K ] - Accuracy unit: [ K ].
Instrument
Status/
Accuracy
Instrument Description
Measurement Technology
Timeline
ACE-FTS
Atmospheric Chemistry Experiment (ACE) Fourier Transform Spectrometer
Operational
Measure and understand the chemical processes that control the distribution of ozone in the Earth's atmosphere, especially at high altitudes.
Limb-scanning IR spectrometer
AMSU-A
Advanced Microwave Sounding Unit-A
Operational
All-weather night-day temperature sounding to an altitude of 45 km.
n/a
AMSU-A
Advanced Microwave Sounding Unit-A
Operational
All-weather night-day temperature sounding to an altitude of 45 km. AMSU-A on Aqua is still partially operational, with 9 of the 15 channels working and collecting data.
n/a
IRAS
InfraRed Atmospheric Sounder
Operational
Atmospheric sounding for weather forecasting.
n/a
MWRI
Micro-Wave Radiation Imager
Operational
All weather observations of precipitation, cloud features, vegetation, soil moisture sea ice, etc.
n/a
* Description adapted from WMO.