GNOS-2 Instrument

Identifiergnos-2NamesGNSS Radio Occultation Sounder-2GNOS-2 About identifiers

Measurements and Applications

Atmospheric sounding for weather forecasting.

Instrument Summary

Full Name
GNSS Radio Occultation Sounder-2
Status
Operational
Instrument Agencies
NSMC-CMA, CNSA
Maturity
Instrument Type
Atmospheric temperature and humidity sounders
Geometry
Cross-track scanning
Instrument Technology
GNSS radio-occultation receiver
Sampling
Sounding
Data Access
Open Access
Data Format
L-1 data: NC

Performance Summary

Resolution
0.5 km vertical
[Best Resolution: 500m]
Swath
Accuracy
GNSS RO: Pseudorange accuracy: GPS≤30cm(RMS)；BDS≤50cm(RMS) Carrier phase accuracy: GPS≤2 mm (RMS)；BDS≤2 mm (RMS) GNSS-R: Calibration accuracy: 0.6 dB
Waveband
L-Band
L-Band (2 - 1 GHz)

Instrument Missions

FY-3E - FY-3E Polar-orbiting Meteorological Satellite (2021 - 2029) fy-3e_gnos-2
FY-3G - FY-3 Rainfall Mission 1 (2023 - 2029) fy-3g_gnos-2
FY-3F - FY-3F Polar-orbiting Meteorological Satellite (2023 - 2031) fy-3f_gnos-2
FY-3H - FY-3H Polar-orbiting Meteorological Satellite (2025 - 2033) fy-3h_gnos-2
FY-3J - FY-3J Polar-orbiting Meteorological Satellite (2027 - 2035) fy-3j_gnos-2
FY-3I - FY-3 Rainfall Mission 2 (2028 - 2034) fy-3i_gnos-2

Instrument Measurements

CategoryParameter
Atmospheric Humidity FieldsAtmospheric specific humidity (column/profile)
Atmospheric Temperature FieldsHeight of tropopause
Temperature of tropopause
Height of the top of the Planetary Boundary Layer
Gravity, Magnetic and Geodynamic measurementsTotal electron content (TEC)
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