3719 20190114123438.0 DATASET-2019-0010 Pottiaux, Eric ROB's contribution to the COST Action ES1206 benchmark campaign: Precise Slant tropospheric Path Delays (SPD), Zenith tropospheric Path Delay (ZPD) and horizontal gradients (GRD). 2017 Database of SPD, ZTD, and GRD in ASCII and TropoSINEX format from about 429 GNSS stations, for assessment of the quality of precise SPD production. STCE GNSS Troposphere ZPD Gradient Slant delay COST Action ES1206 GNSS4SWEC eric.pottiaux@observatoire.be DATASET