| Summary: | Abstract During the transpolar drifting campaign MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) of RV Polarstern (AWI, 2017), GNSS was used among other techniques to monitor variations in atmospheric water vapor. This dataset comprises the RINEX data tracked by a top-side GNSS antenna installed at the compass deck of RV Polarstern. The GNSS equipment was installed on July 4th, 2019. For logistical reasons, the receiver was switched off on October 3rd at a position very close to Ny Ålesund, Svalbard. According to the MOSAiC data guidelines, data for the following periods are not provided in this dataset: - September 12-26, 2019 - June 3-8, 2020 - October 2-3, 2020 Methods A JAV_GRANT-G3T antenna without a choke-ring was installed on RV Polarstern’s compass platform around 22m above the waterline. To support reflectometry, the antenna was mounted on a cube-structure together with a side-looking antenna. The geodetic JAVAD_TR_G3TH receiver was stored on the compass platform within a cabinet mounted at the railings, a description is available via sensor.awi.de (Sensor, 2021). The receiver tracked dual-frequency data of GPS, GLONASS, Galileo, BeiDou, and QZSS with a 30s sampling. GNSS raw data were converted using the JPS2RIN converter software 20 (version v.2.0.191). The derived RINEX files (http://acc.igs.org/misc/rinex304.pdf) have been spliced, sampled, and checked using gfzrnx (Nischan, 2016).
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