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Krahmann, Gerd; Bange, Hermann Werner (2016): Physical oceanography during METEOR cruise M91. PANGAEA,, In supplement to: Fischer, Tim; Kock, Annette; Arévalo-Martínez, Damian L; Dengler, Marcus; Brandt, Peter; Bange, Hermann Werner (2019): Gas exchange estimates in the Peruvian upwelling regime biased by multi-day near-surface stratification. Biogeosciences, 16(11), 2307-2328,

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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,
Other version:
German Science Foundation (DFG), grant/award no. 27542298: Climate - Biogeochemistry Interactions in the Tropical Ocean
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
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: M91 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (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: M91 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (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: M91 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
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
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventKrahmann, Gerd
2Optional event labelEvent 2Krahmann, Gerd
3Latitude of eventLatitudeKrahmann, Gerd
4Longitude of eventLongitudeKrahmann, Gerd
5DATE/TIMEDate/TimeKrahmann, GerdGeocode
6Pressure, waterPressdbarKrahmann, Gerd
7DEPTH, waterDepth watermKrahmann, GerdGeocode
8Temperature, waterTemp°CKrahmann, GerdITS-90
9SalinitySalKrahmann, GerdPSS-78
10OxygenO2µmol/kgKrahmann, Gerd
11Sound velocity in waterSVm/sKrahmann, Gerd
12Density, sigma-theta (0)Sigma-thetakg/m3Krahmann, Gerd
13FluorescenceFluorescencearbitrary unitsKrahmann, GerdWetlabs fluorescence in factory calibrated units or approx. µg/l
14Turbidity (Nephelometric turbidity unit)TurbidityNTUKrahmann, GerdWetlabs turbidity in factory calibrated units / NTU
15Radiation, photosynthetically activePARW/m2Krahmann, GerdUNCALIBRATED
16Radiation, photosynthetically active, surfaceSPARµmol/m2/sKrahmann, GerdUNCALIBRATED
922683 data points

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