Measurements and Applications
Climate change studies. High-vertical resolution temperature-humidity sounding for NWP. Space weather.
Full Name
Radio Occultation Sounder for the Atmosphere
Status
No longer operational
Instrument Agencies
Maturity
Instrument Type
Atmospheric temperature and humidity sounders 
and Precision orbit
Geometry
Occultation
Instrument Technology
GNSS radio-occultation receiver
Sampling
Sounding
Data Access
Constrained Access
Data Format
RINEX
Resolution
300 km (horizontal),
0.5 km (vertical).
Swath
N/A (occultation); about 600 soundings/day.
Accuracy
Bending angle: 0.5 µ rad
Waveband
Around 1600 MHz (L1) and 1200 MHz (L2).
| MW (~0.1 cm - ~100 cm) |
| L-Band (2 - 1 GHz) |
SAC-D/Aquarius - SAC-D/Aquarius (2011 - 2015) |