Quack, Birgit; Krahmann, Gerd (2021): Physical oceanography (CTD) during SONNE cruise SO234/2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.929007
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2021-03-11 • DOI registered: 2021-12-17
Abstract:
Seabird 911plus systems equipped with dual temperature-conductivity-oxygen sensors were employed. The systems had a 24-bottle water sampling rosette with 10 l Niskin bottles. Water sampling, processing, and calibration followed GO-SHIP recommendations (Swift, 2010; McTaggart et al., 2010; Uchida et al., 2010) and included the recommended steps Data Conversion, Sensor Time-Alignment, Creation of Bottle Files, Outlier Removal, Pressure Sensor Filtering, Conductivity Cell Thermal Mass Correction, Ship Roll Correction and Deck Offset Correction by Loop Editing, as well as Derivation of Calculated Properties. After these steps, conductivity and oxygen readings were calibrated against values determined with salinometry (see section 4.1.4) and Winkler titration (see section 4.2.1), respectively. Finally, the downcast data was averaged over 1 dbar wide intervals. An independent upcast calibration was used to obtain calibrated CTDO values coincident with the discrete water samples.
Related to:
Krüger, Kirstin; Quack, Birgit; Marandino, Christa A (2014): RV SONNE Fahrtbericht / Cruise Report SO234-2. GEOMAR Report (N. Ser.), 20, 87 pp, https://doi.org/10.3289/GEOMAR_REP_NS_20_2014
Source:
CTD data of Cruise SO234/2 in netcdf format [dataset]. son_234_2_ctd_netcdf_with_doi.zip
Coverage:
Median Latitude: -28.040615 * Median Longitude: 54.636244 * South-bound Latitude: -29.694330 * West-bound Longitude: 39.679500 * North-bound Latitude: -23.575000 * East-bound Longitude: 58.822000
Date/Time Start: 2014-07-10T09:08:53 * Date/Time End: 2014-07-19T00:50:18
Minimum DEPTH, water: 0.99 m * Maximum DEPTH, water: 4655.24 m
Event(s):
SO234/2_18-2 * Latitude: -26.240000 * Longitude: 39.679500 * Date/Time: 2014-07-10T10:33:00 * Elevation: -4414.8 m * Location: Indian Ocean * Campaign: SO234/2 (SPACES II) * Basis: Sonne * Method/Device: CTD/Rosette (CTD-RO)
SO234/2_19-1 * Latitude: -23.575000 * Longitude: 43.001000 * Date/Time: 2014-07-11T10:30:00 * Elevation: -3027.2 m * Location: Mozambique Channel * Campaign: SO234/2 (SPACES II) * Basis: Sonne * Method/Device: CTD/Rosette (CTD-RO)
SO234/2_20-1 * Latitude: -26.397000 * Longitude: 46.585500 * Date/Time: 2014-07-13T01:48:00 * Elevation: -2400.9 m * Location: Indian Ocean * Campaign: SO234/2 (SPACES II) * Basis: Sonne * Method/Device: CTD/Rosette (CTD-RO)
Comment:
PO-GLOBAL-SVN = 684 used on 30-Apr-2020 18:25:17
Matlab = 9.4.0.813654 (R2018a)
Release = 2
nc_uncertainty_p = 2.000000
nc_uncertainty_t = 0.002000
nc_uncertainty_s = 0.010000
nc_uncertainty_o = 1.500000
nc_comment = Salinity data is derived from manufacturer calibration. Checks against climatological data show no obvious problems. Oxygen has been calibrated for the combined data from cruise legs 234/2 and 235/1.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Quack, Birgit | |||
| 2 | DATE/TIME | Date/Time | Quack, Birgit | Geocode | ||
| 3 | Pressure, water | Press | dbar | Quack, Birgit | ||
| 4 | DEPTH, water | Depth water | m | Quack, Birgit | Geocode | |
| 5 | Temperature, water | Temp | °C | Quack, Birgit | ||
| 6 | Salinity | Sal | Quack, Birgit | |||
| 7 | Oxygen | O2 | µmol/kg | Quack, Birgit | ||
| 8 | Sound velocity in water | SV | m/s | Quack, Birgit | ||
| 9 | Density, potential | Dens pot | kg/m3 | Quack, Birgit | potential -1000 | |
| 10 | Density, sigma, in situ | Sigma in situ | kg/m3 | Quack, Birgit | in situ dens.-1000 | |
| 11 | Fluorescence | Fluorescence | arbitrary units | Quack, Birgit |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
232960 data points
Download Data
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