THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - GRAS -
Full Name GNSS Receiver for Atmospheric Sounding Status Operational
Instrument Agencies EUMETSAT, ESA Maturity
Instrument Type Atmospheric temperature and humidity sounders and Precision orbit Geometry Occultation
Instrument Technology GNSS radio-occultation receiver Sampling Sounding
Data Access Open Access Data Format Native
Measurements and Applications GNSS receiver for atmospheric temperature and humidity profile sounding.
Resolution Summary Vertical: 150 m (troposphere) and 1.5 km (stratosphere), Horizontal: 100 km approx (troposphere), 300 km approx (stratosphere)
Swath Summary Altitude range of 5 - 30 km
Accuracy Summary Temperature sounding to 1 K rms
Waveband Summary L-Band
MW (~1.0 cm - ~100 cm)
Instrument Measurements
Measurements Overview
CategoryParameter
Atmospheric Humidity FieldsAtmospheric specific humidity (LT, HT, LS, HS&M)
Atmospheric Temperature FieldsAtmospheric temperature (LT, HT, LS, HS&M)
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Temperature (upper-air) click here click here Record ID: 11833
Record ID: 11832
Record ID: 11831
Record ID: 11830
Record ID: 11817
find more ECV Inventory records
Water Vapour (upper air) click here click here Record ID: 11829
Record ID: 11828
Record ID: 11792
Record ID: 11790
Reprocessed Specific Humidity Grid, CDR ...
find more ECV Inventory records
Instrument Missions
Metop-A - Meteorological Operational Polar Satellite - A (2006 - 2021)
Metop-B - Meteorological Operational Polar Satellite - B (2012 - 2024)
Metop-C - Meteorological Operational Polar Satellite - C (2018 - 2023)
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