Articles | Volume 11, issue 2
Atmos. Meas. Tech., 11, 1193–1206, 2018
https://doi.org/10.5194/amt-11-1193-2018

Special issue: Observing Atmosphere and Climate with Occultation Techniques...

Atmos. Meas. Tech., 11, 1193–1206, 2018
https://doi.org/10.5194/amt-11-1193-2018

Research article 02 Mar 2018

Research article | 02 Mar 2018

Comparisons of the tropospheric specific humidity from GPS radio occultations with ERA-Interim, NASA MERRA, and AIRS data

Panagiotis Vergados et al.

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Short summary
This study cross-compares the 10-year record of GPS radio occultation (GPS-RO) specific humidity product against independent databases (e.g., AIRS satellite, NASA/MERRA, and ERA-Interim). Our objective is to investigate the suitability of the GPS-RO humidity as a climate variable, which the science community could use in climate research. GPS-RO offers high vertical resolution, low sensitivity to clouds, and long-term stability making GPS-RO humidity a valuable complementary data set.