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Schlundt, Michael; Hummels, Rebecca; Krahmann, Gerd (2024): Continuous thermosalinograph oceanography along RV MARIA S. MERIAN cruise track MSM117 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.965020

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Published: 2024-01-24 • DOI registered: 2024-02-22

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Abstract:
Underway temperature and salinity data was collected along the cruise track with two autonomous measurement systems. Usually, the systems are changed after 6-12 hours. While temperature is taken at the water inlet in about 6.5 m depth, salinity is estimated within the interior measurement container from conductivity and interior temperature. Temperature and salinity were calibrated against CTD data from 7 m depth. For details to all processing steps see Data Processing Report.
Other version:
MSM117 salinity samples (2024). MSM117_salinity_samples.tab
Data processing report:
Schlundt, Michael (2024): Continuous thermosalinograph oceanography along RV MARIA S. MERIAN cruise track MSM117 - Data Processing Report. GEOMAR - Helmholtz Centre for Ocean Research Kiel, DAM_DataProcessingReport_MSM117.pdf
Standard operating procedure:
Schlundt, Michael; Glemser, Barbara (2023): SOP of thermosalinograph (TSG) aboard of RV Maria S Merian. Zenodo, https://doi.org/10.5281/zenodo.7528714
Project(s):
DAM Underway Research Data (DAM_Underway)
Coverage:
Median Latitude: 2.128848 * Median Longitude: -31.024401 * South-bound Latitude: -11.512432 * West-bound Longitude: -38.241261 * North-bound Latitude: 33.489994 * East-bound Longitude: -22.991262
Date/Time Start: 2023-05-10T19:42:00 * Date/Time End: 2023-06-13T22:59:00
Minimum DEPTH, water: 6.5 m * Maximum DEPTH, water: 6.5 m
Event(s):
MSM117_0_Underway-2 * Latitude Start: -8.084109 * Longitude Start: -34.827409 * Latitude End: 33.489994 * Longitude End: -25.326980 * Date/Time Start: 2023-05-10T19:42:00 * Date/Time End: 2023-06-13T22:59:00 * Elevation: -3670.0 m * Campaign: MSM117 (WB Circ Brazil) * Basis: Maria S. Merian * Method/Device: Thermosalinograph (TSG)
Comment:
Temperature was calibrated independently for both MCs against CTD data from 7 m depth. Value added to temperature data MC1 = 0.000821. Value added to temperature data MC2 = -0.000905.
Salinity was calibrated independently for both MCs against CTD data from 7 m depth (tim is the time in days since Expocode of this cruise (06M220230510), i.e. since 2023-05-10T00:00:00): Value added to salinity data MC1 = 0.0006717*tim+0.02362. Value added to salinity data MC2 = -0.0001845*tim-0.01826.
The salinity samples taken directly from the water inlet and attached to this dataset were not used for calibration.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeSchlundt, MichaelGeocode
2LATITUDELatitudeSchlundt, MichaelGeocode
3LONGITUDELongitudeSchlundt, MichaelGeocode
4DEPTH, waterDepth watermSchlundt, MichaelGeocode
5Temperature, waterTemp°CSchlundt, MichaelDigital oceanographic thermometer, Sea-Bird, SBE 38
6Quality flag, water temperatureQF water tempSchlundt, MichaelSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)Temperature QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
7ConductivityCondmS/cmSchlundt, MichaelThermosalinograph, Sea-Bird, SBE 45
8Temperature, water, internalT intern°CSchlundt, MichaelThermosalinograph, Sea-Bird, SBE 45
9SalinitySalSchlundt, MichaelCalculated from internal temperature and conductivity
10Quality flag, salinityQF salSchlundt, MichaelSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)Salinity QC flag meanings:0:no QC; 1:good; 2:probably good; 3:probably bad; 4:bad; 5-7:not used; 8:interpolated; 9:missing
11Measurement containerMCSchlundt, Michael
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 2 (ProcLevel2)
Size:
340899 data points

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