Citation:

PANGAEA.940209

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Abstract:

Two CTD/water sampler systems were deployed during RV POLARSTERN cruise PS117. Both CTDs are SBE911plus from the manufacturer Seabird Scientific. The data from the AWI CTD have already been processed and are stored in Pangaea under https://doi.pangaea.de/10.1594/PANGAEA.910663 and can be downloaded there. The NIOZ-Ultra Clean CTD incl. water sampler could not be used with direct data transmission, so it was operated together with a SBE17 for control and storage of the data. At the beginning of the cruise there were problems with the setup of the SBE17 unit so that profiles were not recorded completely. After several attempts, the problem was identified in the SBE17. A replacement of this unit was shipped to Neumayer Station and brought on board POLARSTERN. After the replacement of the SBE17 the system worked reliable. However, this also meant that the failure of a conductivity sensor was only detected and replaced at a late stage. For this reason, usable CTD profiles are only available from station 36 onwards. In order to obtain a data set comparable to the AWI-CTD, profiles made with AWI-CTD and NIOZ-CTD at the same stations were used. The difference between the processed AWI-CTD and the unprocessed NIOZ-CTD is used to correct the NIOZ-CTD.

Related to:

Boebel, Olaf (2019): The Expedition PS117 of the Research Vessel POLARSTERN to the Weddell Sea in 2018/2019. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 732, 205 pp, https://doi.org/10.2312/BzPM_0732_2019

Further details:

PS117-UCTD Data Processing Report

Project(s):

Physical Oceanography @ AWI (AWI_PhyOce)

Coverage:

Median Latitude: -64.971002 * Median Longitude: -22.691672 * South-bound Latitude: -70.874400 * West-bound Longitude: -54.524600 * North-bound Latitude: -59.084000 * East-bound Longitude: 0.099700

Date/Time Start: 2018-12-27T00:06:00 * Date/Time End: 2019-02-01T02:46:00

Minimum DEPTH, water: 9.9 m * Maximum DEPTH, water: 5131.9 m

Event(s):

PS117_14-4 * Latitude: -67.499950 * Longitude: 0.090860 * Date/Time: 2018-12-27T00:06:00 * Location: Lazarev Sea * Campaign: * Basis: * Method/Device: (CTD-UC)

PS117_16-1 * Latitude: -66.000040 * Longitude: -0.000260 * Date/Time: 2018-12-28T01:47:00 * Elevation: -3414.0 m * Location: South Atlantic Ocean * Campaign: * Basis: * Method/Device: (CTD-UC)

PS117_18-4 * Latitude: -63.970950 * Longitude: -0.054450 * Date/Time: 2018-12-29T01:22:00 * Elevation: -5206.0 m * Location: Weddell Sea * Campaign: * Basis: * Method/Device: (CTD-UC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Rohardt, Gerd
2	Type	Type		Rohardt, Gerd
3	DATE/TIME	Date/Time		Rohardt, Gerd		Geocode
4	LONGITUDE	Longitude		Rohardt, Gerd		Geocode
5	LATITUDE	Latitude		Rohardt, Gerd		Geocode
6	Depth, bathymetric	Bathy depth	m	Rohardt, Gerd
7	DEPTH, water	Depth water	m	Rohardt, Gerd		Geocode
8	Pressure, water	Press	dbar	Rohardt, Gerd	CTD, Sea-Bird, SBE 911plus [SN: T1197-C3267 and T1197-C3385]
9	Temperature, water	Temp	°C	Rohardt, Gerd	CTD, Sea-Bird, SBE 911plus [SN: T1197-C3267 and T1197-C3385]
10	Salinity	Sal		Rohardt, Gerd	CTD, Sea-Bird, SBE 911plus [SN: T1197-C3267 and T1197-C3385]	PSU
11	Temperature, water, potential	Tpot	°C	Rohardt, Gerd	Calculated
12	Density, sigma-theta (0)	Sigma-theta	kg/m³	Rohardt, Gerd	Calculated
13	Oxygen, dissolved	DO	ml/l	Rohardt, Gerd	CTD, Sea-Bird, SBE 911plus [SN: T1197-C3267 and T1197-C3385]

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

343396 data points

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