Monthly Mean Humidity Anomaly

The STAR gridded monthly mean humidity anomaly (MMHA) of specific humidity is generated from STAR 1DVar wet profiles derived from multiple GNSS RO missions, processed by the GNSS RO Science Data Center (SDC) at NOAA STAR. These missions include MetOp-A, COSMIC-1, CHAMP, C/NOFS, GRACE, SAC-C, and TerraSAR-X. The dataset is constructed on a 10° × 10° latitude-longitude grid, spanning pressure levels from 850 hPa to 100 hPa, and covering the period from 2002 to 2014. Grid cells without any RO observations are assigned a missing value of -999. For a detailed description of the MMC dataset, please refer to the metadata included in the NetCDF file.