WMO OSCAR | Details for Instrument GNSS-R (MicroSat-2C)

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Instrument: GNSS-R (MicroSat-2C)

Instrument details

Acronym	GNSS-R (MicroSat-2C)
Full name	GNSS Reflectometer for MicroSat-2C
Purpose	To observe ocean surface wind and soil moisture, upper atmosphere temperature and ionospheric total electron content.
Short description	A dual polarisation, dual frequency L1/L5 bands GNSS Receiver. It can view reflected signal from surface, in occultation mode for bending angles and also to zenith for ionospheric TEC and scintillation. It uses GPS and IRNSS constellations.
Background	New development
Scanning Technique
Resolution
Coverage / Cycle	The revisit time will depend on the number of satellites in constellations.
Mass		Power	Data Rate

Detailed characteristics

Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification

WIGOS Subcomponents

Mission objectives

Primary mission objectives

Evaluation of Measurements

Variable	Relevance for measuring this variable	Operational limitations	Explanation
Atmospheric density	1 - primary	No specific limitation.	Measuring atmospheric density
Geoid	4 - fair	Highly indirect.	Radio-occultation processing implies precise orbitography. Geoid derived from multi-temporal analysis
Gravity field	5 - marginal	Highly indirect.	Radio-occultation processing implies precise orbitography. Gravity field derived from multi-temporal analysis
Precipitation intensity at surface (liquid or solid)	5 - marginal	Heavy precipitation only	Precipitation detected by de-polarisation measurement (experimental)
Wind speed (near surface)*	5 - marginal	Over sea only.. Infrequent coverage.	Wind speed estimated from the intensity of signals from different incidence angles