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Krahmann, Gerd (2015): Physical oceanography during METEOR cruise M93. PANGAEA,, In supplement to: Thomsen, Soeren; Kanzow, Torsten; Krahmann, Gerd; Greatbatch, Richard J; Dengler, Marcus; Lavik, Gaute (2016): The formation of a subsurface anticyclonic eddy in the Peru-Chile Undercurrent and its impact on the near-coastal salinity, oxygen, and nutrient distributions. Journal of Geophysical Research: Oceans, 121(1), 476-501,

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Related to:
Lavik, Gaute (2013): Short Cruise Report - Meteor Cruise M93 - Callao, Peru- Balboa, Panama - 07.02.2013-09.03.2013. Max Planck Institute for Marine Microbiology, Bremen, Germany, 15 pp,
Median Latitude: -12.907899 * Median Longitude: -77.213611 * South-bound Latitude: -13.969330 * West-bound Longitude: -78.417500 * North-bound Latitude: -12.164670 * East-bound Longitude: -76.418000
Date/Time Start: 2013-02-08T04:23:00 * Date/Time End: 2013-03-04T09:36:00
Minimum DEPTH, water: 1.99 m * Maximum DEPTH, water: 5463.07 m
M93_290-1 (CTD001) * Latitude: -12.376500 * Longitude: -77.466000 * Date/Time: 2013-02-08T04:23:00 * Elevation: -286.9 m * Location: South Pacific Ocean * Campaign: M93 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO) * Comment: rope length max= 280 m
M93_291-1 (CTD002) * Latitude: -12.801670 * Longitude: -77.746000 * Date/Time: 2013-02-08T08:37:00 * Elevation: -2016.4 m * Location: South Pacific Ocean * Campaign: M93 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO) * Comment: rope length max=822m
M93_292-1 (CTD003) * Latitude: -12.698500 * Longitude: -77.594830 * Date/Time: 2013-02-08T10:31:00 * Elevation: -1164.9 m * Location: South Pacific Ocean * Campaign: M93 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO) * Comment: rope length max = 808m
Data from this cruise has been calibrated together with the data from the previous cruise M92 which used the same CTD sensors. Oxygen has been calibrated by combining conventional Winkler titrations from M92 and M93 and data from a Unisense Stox sensor that is capable of measuring very low oxygen values.. Oxygen values below 0 come either from very strong vertical gradient which results in an overshoot by a filter of the manufacturer, or are within the noise level of the instrument of about 1 mumol/kg. Such values hould be regarded as very very close to 0. Conductivity/Salinity measurements near the surface frequently suffered from biological matter. Use near surface values with caution.
Sound speed and pinger depth correction unkown. Use with care.
Fluorescence and Turbidity data still contain deck offsets. Use with caution
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventKrahmann, Gerd
2Optional event labelEvent 2Krahmann, Gerd
3Date/Time of eventDate/TimeKrahmann, Gerd
4Latitude of eventLatitudeKrahmann, Gerd
5Longitude of eventLongitudeKrahmann, Gerd
6DEPTH, waterDepth watermKrahmann, GerdGeocode
7Pressure, waterPressdbarKrahmann, Gerd
8Temperature, waterTemp°CKrahmann, GerdITS-90
9SalinitySalKrahmann, GerdPSS-78
10OxygenO2µmol/kgKrahmann, Gerd
11FluorescenceFluorescencearbitrary unitsKrahmann, Gerdex/em 470/695 nm converted to 1E-6 g/l Chlorophyll-a concentration
12Turbidity (Nephelometric turbidity unit)TurbidityNTUKrahmann, GerdTurbidity expressed in NTU is the proportion of white light scattered back to a transceiver by the particulate load in a body of water, represented on an arbitrary scale referenced against measurements made in the laboratory on aqueous suspensions of formazine beads.
13Organic matter, colored dissolvedCDOMmg/lKrahmann, Gerdex/em 370/460 nm converted to 1E-6 g/l Colored Dissolved Organic Matter content
484533 data points

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