Citation:

PANGAEA.988334 (dataset in review)

Name: Physical oceanography during RV SONNE cruise SO301 at Kairei Vent Site
License: https://creativecommons.org/licenses/by/4.0/
Keywords: CTD; hydrothermal activity; Indian Ocean; Kairei field

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Abstract:

This dataset contains CTD (conductivity, temperature, depth probe) data and additional parameters for stations conducted during the cruise SO301. Additionally it contains corresponding navigational data from the ships positioning system. The stations were executed in December 2023 to detect possible hydrothermal plumes at the Kairei Vent Site at approximately -25° latitude and 69° longitude. The data was measured with a CTD rosette system and processed to correct sensor uncertainties and remove outliers. The original sample frequency of 24 Hz was averaged to 1 Hz. Some thermodynamic properties were not processed with the standard SeaBird software but according to the TEOS10 standard.

Keyword(s):

CTD; hydrothermal activity; Indian Ocean; Kairei field

Related to:

Engels, Martin; Barckhausen, Udo; Bartels, Thies; Bauer, Benedikt; Behrens, Thomas; Belleville, Morgane; Dannowski, Anke; Demir, Ümit; Deppe, Joachim; Ebert, Timo; Ehrhardt, Axel; Filbrandt, Christian; Fröhberg, Nico; Gallucci, Luigi; Gomes de Souza, Berenice; Heyde, Ingo; Jegen, Anna; Kuckuck, Jan; Ladage, Stefan; Lücke, Oscar; Lutz, Rüdiger; Mette, Jonathan; Pedre, Ignacio; Raphael Deeban Raj, Shareen; Schauer, Michael; Schnabel, Michael; Schramm, Bettina; Steinborn, Peter; Renzelmann, Henri; Wegener, Gunter (2024): Seismic Imaging at the Central Indian Ridge: Structure and Formation of Oceanic Core Complexes, Cruise No. SO301, November 22, 2023 - January 4, 2024, Port Louis - Port Louis (Mauritius). SONNE-Berichte, Begutachtungspanel Forschungsschiffe, SO301, 127 pp, https://doi.org/10.48433/cr_so301

Funding:

Federal Ministry of Education and Research (BMBF), grant/award no. GPF22-1_046: KaBa - Ramifications of Venting at the Kairei Hydrothermal Field for Bathypelagic Microbial Processes in Consort With Carbon and Metal Cycling

Coverage:

Median Latitude: -25.312438 * Median Longitude: 69.995840 * South-bound Latitude: -25.463334 * West-bound Longitude: 69.378407 * North-bound Latitude: -25.032958 * East-bound Longitude: 70.062337

Date/Time Start: 2023-11-26T07:07:47 * Date/Time End: 2023-12-31T02:39:44

Minimum DEPTH, water: -0.5030000 m * Maximum DEPTH, water: 3238.3800000 m

Event(s):

SO301_2-1 * Latitude: -25.463300 * Longitude: 69.378500 * Date/Time: 2023-11-26T08:20:11 * Elevation: -3001.4 m * Campaign: (SCIROCCO) * Basis: * Method/Device: (CTD-RO) * Comment: SS-CTD

SO301_5-1 * Latitude Start: -25.320417 * Longitude Start: 70.040383 * Latitude End: -25.320550 * Longitude End: 70.040400 * Date/Time Start: 2023-11-27T04:13:19 * Date/Time End: 2023-11-27T18:48:27 * Elevation Start: -2428.1 m * Elevation End: -2438.6 m * Campaign: (SCIROCCO) * Basis: * Method/Device: (CTD-RO) * Comment: SS-CTD Tow-Yo

SO301_7-1 * Latitude Start: -25.316000 * Longitude Start: 70.042700 * Latitude End: -25.324933 * Longitude End: 70.038800 * Date/Time Start: 2023-11-28T01:35:35 * Date/Time End: 2023-11-28T11:41:53 * Elevation Start: -2313.8 m * Elevation End: -2639.3 m * Campaign: (SCIROCCO) * Basis: * Method/Device: (CTD-RO) * Comment: SS-CTD Tow-Yo

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Walter, Maren
2	Timestamp	Timestamp	s	Walter, Maren	CTD, Sea-Bird, SBE 911plus	NMEA time seconds since 2000-01-01
3	Bottle number	Bottle	#	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Number of bottles fired
4	Conductivity	Cond	mS/cm	Walter, Maren	CTD, Sea-Bird, SBE 911plus	1st sensor
5	Density, mass density	Density	kg/m³	Walter, Maren	CTD, Sea-Bird, SBE 911plus	1st sensor
6	DEPTH, water	Depth water	m	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Geocode
7	Oxygen, dissolved	DO	ml/l	Walter, Maren	CTD, Sea-Bird, SBE 911plus	1st sensor
8	Temperature, water, potential	Tpot	°C	Walter, Maren	CTD, Sea-Bird, SBE 911plus	1st sensor
9	Pressure, water	Press	dbar	Walter, Maren	CTD, Sea-Bird, SBE 911plus
10	Salinity	Sal		Walter, Maren	CTD, Sea-Bird, SBE 911plus	PSU 1st sensor
11	Temperature, water	Temp	°C	Walter, Maren	CTD, Sea-Bird, SBE 911plus	1st sensor
12	Elapsed time	ETIM	s	Walter, Maren	CTD, Sea-Bird, SBE 911plus
13	Turbidity (Nephelometric turbidity unit)	Turbidity	NTU	Walter, Maren	CTD, Sea-Bird, SBE 911plus
14	Oxidation reduction (RedOx) potential	Eh	mV	Walter, Maren	CTD, Sea-Bird, SBE 911plus	PMEL sensor
15	Oxidation reduction (RedOx) potential	Eh	mV	Walter, Maren	CTD, Sea-Bird, SBE 911plus	AMT sensor
16	Height above sea floor/altitude	Height above sea floor	m	Walter, Maren	CTD, Sea-Bird, SBE 911plus
17	Quality flag	QF		Walter, Maren	CTD, Sea-Bird, SBE 911plus
18	Date/time start	Date/time start		Walter, Maren	CTD, Sea-Bird, SBE 911plus	first scan
19	DATE/TIME	Date/Time		Walter, Maren	CTD, Sea-Bird, SBE 911plus	Geocode
20	Recorder, serial number	Recorder SN		Walter, Maren	CTD, Sea-Bird, SBE 911plus
21	Conductivity	Cond	mS/cm	Walter, Maren	CTD, Sea-Bird, SBE 911plus	2nd sensor
22	Conductivity, difference	Cond diff	mS/cm	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Sensor difference, C2-C1
23	Oxygen, dissolved	DO	ml/l	Walter, Maren	CTD, Sea-Bird, SBE 911plus	2st sensor
24	Oxygen difference	Oxygen diff	ml/l	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Oxygen sensor difference
25	Temperature, water, potential	Tpot	°C	Walter, Maren	CTD, Sea-Bird, SBE 911plus	2st sensor
26	Salinity	Sal		Walter, Maren	CTD, Sea-Bird, SBE 911plus	PSU 2st sensor
27	Temperature, water	Temp	°C	Walter, Maren	CTD, Sea-Bird, SBE 911plus	2st sensor
28	Temperature, water, difference	Temp diff	°C	Walter, Maren	CTD, Sea-Bird, SBE 911plus
29	Turbidity (Nephelometric turbidity unit)	Turbidity	NTU	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Nephelometric turbidity only outliers removed
30	Turbidity (Nephelometric turbidity unit)	Turbidity	NTU	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Nephelometric turbidity outliers removed and smoothed
31	Oxidation reduction (RedOx) potential, time derivative	Eh, time deriv	mV/s	Walter, Maren	CTD, Sea-Bird, SBE 911plus	30 second time derivative of upoly0, PMEL
32	Oxidation reduction (RedOx) potential, time derivative	Eh, time deriv	mV/s	Walter, Maren	CTD, Sea-Bird, SBE 911plus	30 second time derivative of upoly1, AMT
33	Depth, logging	Depth log	m	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Depth of the device from an underwater position tracker
34	Latitude 2	Latitude 2		Walter, Maren	CTD, Sea-Bird, SBE 911plus	Latitude of the device from an underwater position tracker
35	Longitude 2	Longitude 2		Walter, Maren	CTD, Sea-Bird, SBE 911plus	Longitude of the device from an underwater position tracker
36	LATITUDE	Latitude		Walter, Maren	CTD, Sea-Bird, SBE 911plus	Geocode – Dship
37	LONGITUDE	Longitude		Walter, Maren	CTD, Sea-Bird, SBE 911plus	Geocode – Dship
38	Salinity, absolute	ASAL	g/kg	Walter, Maren	CTD, Sea-Bird, SBE 911plus	TEOS10
39	Temperature, water, conservative	Tcon	°C	Walter, Maren	CTD, Sea-Bird, SBE 911plus	TEOS10
40	Density, mass density	Density	kg/m³	Walter, Maren	CTD, Sea-Bird, SBE 911plus	In-situ, TEOS10
41	Density, potential anomaly	Dens pot anomaly	kg/m³	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Potential density anomaly reference pressure 10db TEOS10
42	Density, potential anomaly	Dens pot anomaly	kg/m³	Walter, Maren	CTD, Sea-Bird, SBE 911plus	Potential density anomaly reference pressure 2000db TEOS10

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

16236859 data points

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