Dataset of vertical temperature and salinity profiles obtained at various locations across the Hornsund fjord. Several CTD instruments have been used for data collection: Valeport miniCTD, two separate SAIV A/S 208 STD/CTDs and two separate RBR concerto CTDs.
The data are stored in folders organized by the year (YYYY) of measurements. Each vertical profile is stored as an individual, tab-separated ASCII file. The filenames are formed from the date (and time) of measurement followed by the instrument and station names: YYYYMMDD_instrument_station.txt or YYYYMMDDhhmmss_instrument_station.txt. Each file includes eight headerlines with information on station name, geographical location (decimal degrees), bottom depth at the location (m), date (and time) of measurement (YYYY-MM-DDThh:mm:ss), instrument and its serial number, source of financial support and data column names. There are seven data columns: pressure (dbar), depth (m), temperature (°C), potential temperature (°C), practical salinity (PSU), SigmaT density (kg/m**3) and sound velocity (m/s).
The data are averaged to 1-dbar vertical bins. Before averaging, data are visually inspected and suspicious data are removed. Based on inter-calibration between the instruments, a linear correction has been calculated for temperature and conductivity and added to the measurements by SAIV A/S 208 CTD. In general, both down- and up-profiles are used for averaging. Finally, the data is interpolated and smoothed.