Atmospheric pressure (over sea surface) Measurements Made by Earth Observation Satellites

CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS

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Atmospheric pressure (over sea surface)

Measurement Definition*: Pressure caused by the weight of the atmosphere. At sea level it has a mean value of one atmosphere but reduces with increasing altitude. Conventionally measured at 2 m height. [Unit of measurement - hPa]

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ECV Pressure (surface)

Instrument	Status/ Accuracy	Instrument Description	Measurement Technology	Timeline
ATMS Advanced Technology Microwave Sounder	Operational	Collects microwave radiance data that when combined with the CrIS data will permit calculation of atmospheric temperature and water vapour profiles.	n/a
CrIS Cross-track Infrared Sounder	Operational	Daily measurements of vertical atmospheric distribution of temperature, moisture, and pressure. MWIR non-operational on Suomi NPP effective 12 July 2021.	n/a
OLCI Ocean and Land Colour Imager	Operational	Marine and land services.	n/a
TANSO-FTS Thermal And Near infrared Sensor for carbon Observation - Fourier Transform Spectrometer	Operational +/-2	CO2 and CH4 distribution.	n/a
TANSO-FTS-2 Thermal And Near infrared Sensor for carbon Observation - Fourier Transform Spectrometer-2	Operational	CO2, CH4, and CO distribution.	n/a

* Description adapted from WMO.