Citation:

bg-16-2307-2019

Always quote citation above when using data! You can download the citation in several formats below.

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Related to:

Bange, Hermann Werner (2013): Surface Ocean – Lower Atmosphere Study (SOLAS) in the upwelling region off Peru - Cruise No. M91 – December 01 – December 26, 2012 – Callao (Peru) – Callao (Peru). METEOR-Berichte, DFG-Senatskommission für Ozeanographie, M91, 69 pp, https://doi.org/10.2312/cr_m91

Source:

CTD data of cruise M91 in netcdf format

Other version:

Krahmann, Gerd; Bange, Hermann Werner (2013): Physical oceanography during METEOR cruise M91. GEOMAR - Helmholtz Centre for Ocean Research Kiel, PANGAEA, https://doi.org/10.1594/PANGAEA.817221

Project(s):

Climate - Biogeochemistry Interactions in the Tropical Ocean (SFB754)

Surface Ocean Processes in the Anthropocene (SOPRAN)

Funding:

German Research Foundation (DFG), grant/award no. 27542298 : Climate - Biogeochemistry Interactions in the Tropical Ocean

Coverage:

Median Latitude: -11.463395 * Median Longitude: -78.553119 * South-bound Latitude: -16.155830 * West-bound Longitude: -82.000330 * North-bound Latitude: -4.999670 * East-bound Longitude: -75.332330

Date/Time Start: 2012-12-02T13:05:39 * Date/Time End: 2012-12-23T23:01:14

Minimum DEPTH, water: 1.99 m * Maximum DEPTH, water: 4998.28 m

Event(s):

M91_1712-1 (CTD-001) * Latitude: -9.060170 * Longitude: -79.980330 * Date/Time: 2012-12-02T13:13:00 * Elevation: -708.1 m * Location: South Pacific Ocean * Campaign: * Basis: * Method/Device: (CTD-RO)

M91_1713-1 (CTD-002) * Latitude: -5.000000 * Longitude: -82.000170 * Date/Time: 2012-12-03T13:00:00 * Elevation: -5289.2 m * Location: South Pacific Ocean * Campaign: * Basis: * Method/Device: (CTD-RO)

M91_1713-3 (CTD-003) * Latitude: -4.999670 * Longitude: -82.000330 * Date/Time: 2012-12-03T15:53:00 * Elevation: -5285.5 m * Location: South Pacific Ocean * Campaign: * Basis: * Method/Device: (CTD-RO)

Comment:

Low Oxygen values are likely too high by 1 to 2 µmol/kg, higher values are ok. Near surface S values are problematic because of biology. A few negative oxygen values appear to be caused by an overshoot of Seabirds oxygen hysteresis correction in extremely strong vertical oxygen gradients.

PAR with BadValue or NaN might need replacement by 0

Fluorescence and Turbidity data still contain deck offsets. Use with caution.

nc_uncertainty_p = 2.000000

nc_uncertainty_t = 0.002000

nc_uncertainty_s = 0.002000

nc_uncertainty_o = 1.000000

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Krahmann, Gerd
2	Optional event label	Event 2		Krahmann, Gerd
3	Latitude of event	Latitude		Krahmann, Gerd
4	Longitude of event	Longitude		Krahmann, Gerd
5	DATE/TIME	Date/Time		Krahmann, Gerd	Geocode
6	Pressure, water	Press	dbar	Krahmann, Gerd
7	DEPTH, water	Depth water	m	Krahmann, Gerd	Geocode
8	Temperature, water	Temp	°C	Krahmann, Gerd	ITS-90
9	Salinity	Sal		Krahmann, Gerd	PSS-78
10	Oxygen	O2	µmol/kg	Krahmann, Gerd
11	Sound velocity in water	SV	m/s	Krahmann, Gerd
12	Density, sigma-theta (0)	Sigma-theta	kg/m³	Krahmann, Gerd
13	Fluorescence	Fluorescence	arbitrary units	Krahmann, Gerd	Wetlabs fluorescence in factory calibrated units or approx. µg/l
14	Turbidity (Nephelometric turbidity unit)	Turbidity	NTU	Krahmann, Gerd	Wetlabs turbidity in factory calibrated units / NTU
15	Radiation, photosynthetically active	PAR	W/m²	Krahmann, Gerd	UNCALIBRATED
16	Radiation, photosynthetically active, surface	SPAR	µmol/m²/s	Krahmann, Gerd	UNCALIBRATED

Change history:

2023-12-04T15:47:37 – Updated source file archives contain improved position information following WOCE standards (begin/bottom/end).

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

922683 data points

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