Krahmann, Gerd (2016): Physical oceanography during METEOR cruise M92 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.858070, 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, https://doi.org/10.1002/2015JC010878
Always quote citation above when using data! You can download the citation in several formats below.
Related to:
Sommer, Stefan; Dengler, Marcus; Treude, Tina (2014): Benthic element cycling, fluxes and transport of solutes across the benthic boundary layer in the Peruvian oxygen minimum zone, (SFB 754) - Cruise No. M92 - January 05 - February 03, 2013 - Callao (Peru) - Callao (Peru). METEOR-Berichte, DFG-Senatskommission für Ozeanographie, M92, 55 pp, https://doi.org/10.2312/cr_m92
Source:
CTD data of cruise M92 in netcdf format [dataset]. met_092_1_ctd_rel_7_with_doi_netcdf.zip
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 27542298: Climate - Biogeochemistry Interactions in the Tropical Ocean
Coverage:
Median Latitude: -12.285276 * Median Longitude: -77.496645 * South-bound Latitude: -13.165000 * West-bound Longitude: -78.633667 * North-bound Latitude: -10.999833 * East-bound Longitude: -76.835167
Date/Time Start: 2013-01-05T15:07:01 * Date/Time End: 2013-01-31T05:12:22
Minimum DEPTH, water: 1.99 m * Maximum DEPTH, water: 1997.76 m
Event(s):
M92_0001-1 (CTD-001) * Latitude: -12.033167 * Longitude: -77.666667 * Date/Time: 2013-01-05T15:04:00 * Elevation: -179.1 m * Campaign: M92 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M92_0005-1 (CTD-002) * Latitude: -12.309833 * Longitude: -77.292833 * Date/Time: 2013-01-06T17:48:00 * Elevation: -142.9 m * Campaign: M92 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M92_0007-1 (CTD-003) * Latitude: -12.389333 * Longitude: -77.401833 * Date/Time: 2013-01-06T20:22:00 * Elevation: -244.1 m * Campaign: M92 * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
Comment:
Data from this cruise has been calibrated together with the data from the following cruise M93 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.
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 | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Krahmann, Gerd | |||
| 2 | Longitude of event | Longitude | Krahmann, Gerd | |||
| 3 | Latitude of event | Latitude | Krahmann, Gerd | |||
| 4 | DATE/TIME | Date/Time | Krahmann, Gerd | Geocode | ||
| 5 | DEPTH, water | Depth water | m | Krahmann, Gerd | Geocode | |
| 6 | Pressure, water | Press | dbar | Krahmann, Gerd | ||
| 7 | Temperature, water | Temp | °C | Krahmann, Gerd | ITS-90 | |
| 8 | Salinity | Sal | Krahmann, Gerd | PSS-78 | ||
| 9 | Oxygen | O2 | µmol/kg | Krahmann, Gerd | ||
| 10 | Sound velocity in water | SV | m/s | Krahmann, Gerd | ||
| 11 | Density, sigma, in situ | Sigma in situ | kg/m3 | Krahmann, Gerd | ||
| 12 | Fluorescence | Fluorescence | arbitrary units | Krahmann, Gerd | Wetlabs fluorescence in factory calibrated units or approx. mug/l | |
| 13 | Turbidity (Nephelometric turbidity unit) | Turbidity | NTU | Krahmann, Gerd | Wetlabs turbidity in factory calibrated units / NTU | |
| 14 | Organic matter, colored dissolved | CDOM | mg/l | Krahmann, Gerd | ||
| 15 | Radiation, photosynthetically active | PAR | W/m2 | Krahmann, Gerd | UNCALIBRATED | |
| 16 | Radiation, photosynthetically active, surface | SPAR | µmol/m2/s | Krahmann, Gerd | UNCALIBRATED |
Change history:
2023-12-04T15:48:12 – 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:
365567 data points
Download Data
View dataset as HTML (shows only first 2000 rows)