Introduction Radio occultation uses observed radio wave bending angles from global navigation satellite systems (including GPS and GLONASS) to derive atmospheric properties. The resulting derived profiles provide a high-accuracy, high vertical resolution, limited footprint, product featuring atmospheric variables such as dry temperature and refractivity. For more detailed information please refer to https://www.cosmic.ucar.edu/what-we-do/gnss-radio-occultation This gridded, monthly mean dataset is constructed through merging 13 radio occultation (RO) profile datasets provided by the COSMIC Data Analysis and Archive Center (CDAAC) and subsequently gridding into a monthly 5°x10° product. All valid (non-bad flagged) profiles from each mission were incorporated. All tropopause calculations were carried out independently from CDAAC calculations and were derived directly from the profile data (Cold Point Tropopause). Specifications Included datasets: Name Date Range Profile Count CHAMP 2002/03/01-2008/10/05 402,707 COSMIC 2006/04/22-2020/04/25 5,782,020 COSMIC-2 2019/10/01-2025/08/31 10,376,262 GRACE 2007/02/28-2017/11/30 427,414 KOMPSAT-5 2015/01/22-2025/08/31 619,814 MetOp-A 2007/10/01-2021/11/27 2,869,098 MetOp-B 2013/02/01-2025/05/31 2,196,376 MetOp-C 2019/07/14-2025/08/31 832,708 PAZ 2018/05/10-2025/08/31 283,455 SAC-C 2006/03/09-2011/08/03 348,411 Spire 2020/12/16-2025/08/31 3,950,614 TamDEM-X 2016/01/01-2025/08/31 301,860 TerraSAR-X 2008/02/10-2025/08/31 885,090 Gridded Resolution: 5° Latitude, 10° Longitude, 200 m Vertical for Dry Temperature 5° Latitude Zonal Mean, 200 m Vertical for Bending Angle and Refractivity 5° Latitude, 10° Longitude for tropopause parameters Variables included: Dry Temperature, (Temp), 10 – 40 km Bending Angle, (Bend_ang), 0 – 60 km Refractivity, (Ref), 0 – 60 km Tropopause Parameters Cold Point Temperature (cpt) (for latitudes 30 N - 30 S), Calculated Using Profiles Data Timeframe: March 2002 – September 2025