THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
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Atmospheric Winds >
Wind vector over land surface (horizontal)


Measurement Definition*: The wind vector represents the motion of the airmass over the ground. It is described by wind speed and the inverse of wind direction. Conventionally measured at 10 m height.Accuracy is the modulus of the vector difference between measured and true vectors. [Unit ofmeasurement - m/s]
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
AGRI
Advanced Geosynchronous Radiation Imager
Operational
A multiple channel radiation imager, one of the primary instruments aboard FY-4. Technically featured by a precisely designed two-mirror structure, capable of accurate and flexible sensing in two dimensions, and minute-level fast sector scanning. Frequent Earth imaging over 14 bands with off-axis three reflections of the primary optic system. On-board black body available for IR calibrations at very short time intervals.n/a
VIIRS
Visible/Infrared Imager Radiometer Suite
Operational
Global observations of land, ocean, and atmosphere parameters: cloud/weather imagery, sea-surface temperature, ocean colour, land surface vegetation indices.n/a
GeoSTAR
MW Array Spectrometer (PATH)
Proposed
High frequency, all-weather temperature and humidity soundings for weather forecasting and SST.n/a
HDWL (3D Winds)
HDWL (3D Winds)
Proposed
Tropospheric winds for weather forecasting and pollution transport.n/a
* Description adapted from WMO.
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