The Wegener Center (WEGC) Global Navigation Satellite System (GNSS) radio occultation (RO) record version OPS 5.6 provides globally distributed upper-air satellite data of high quality from multiple RO satellite missions, usable for climate and other high-accuracy applications.
GNSS RO, where we provide data obtained with the Global Positioning System (GPS), is an active limb sounding satellite technique observing thermodynamic atmospheric variables since 2001. Its properties include high vertical resolution and accuracy, global coverage, long-term stability, and particularly high quality within the upper troposphere and lower stratosphere.
This record comprises individual retrieved profiles for the variables listed below.
CHAMP, C/NOFS, FORMOSAT-3 COSMIC, GRACE, MetOp, SAC-C
Bending angle, Refractivity, Temperature, Pressure, Density, Specific humidity, Geopotential height
Atmospheric conditions, Environmental monitoring facilities, Radio Occultation, Global Navigation Satellite System, Global Positioning System, Essential Climate Variables, Atmosphere and Climate, Calibration, Validation, Climate Change
The data provided is licensed under the Creative Commons Attribution 4.0 International license (CC-BY 4.0). You are free to share and adapt the material in any way under the following terms:
EOPAC Team (2021), GNSS Radio Occultation Record (OPS 5.6 2001–2020), University of Graz, Austria, doi:10.25364/WEGC/OPS5.6:2021.1.
Angerer, B., Ladstädter, F., Scherllin-Pirscher, B., Schwärz, M., Steiner, A. K., Foelsche, U., and Kirchengast, G. (2017), Quality aspects of the Wegener Center multi-satellite GPS radio occultation record OPSv5.6, Atmos. Meas. Tech., 10, 4845–4863, doi:10.5194/amt-10-4845-2017.
The data is provided in NetCDF and split into daily files for each receiver satellite and transmitter system.
It can be downloaded via sftp. Please find the details in the following table.
If you have problems downloading the data please have a look at the EODC F.A.Q.
You can also use the FTP Archive to access the data.