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Höfer, Juan; Mestre, Mireia; Hopwood, Mark James; Alarcon, Emilio; Vasquez, Valeska (2025): CTD data Gerlache-Bismarck Strait (Antarctic Peninsula) during ECA56 expedition [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.983131 (DOI registration in progress)

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Published: 2025-06-17

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Abstract:
CTD vertical profiles recorded using a SBE 25 plus CTD. The casts were taken on R/V Karpuj between the 9th and 16th of February 2020 in Gerlache-Bismarck Strait (Antarctic Peninsula) during the Chilean Antarctic Expedition #56 (ECA56). The research team was working on R/V Karpuj from INACH at the time under the supervision of Juan Höfer (chief scientist). The dataset includes temperature, conductivity, salinity, pressure, depth, chlorophyll a (Wet Labs) and oxygen concentration (SBE-43 oxygen meter). Raw CTD data were processed using SBE Data Processing Version 7.22.5 and SEAWATER Routines; and the dataset includes values averaged every 0.5 meters.
Keyword(s):
Antarctica; Antarctic Peninsula; Bismarck Strait; CTD profiles; Gerlache Strait
Related to:
Mestre, Mireia; et al. (in review): Microbial Fingerprinting of Marine Water Masses in an Antarctic and Hydrographically Complex Area.
Funding:
Ministry of education, Chile (CONICYT), grant/award no. 15150003: FONDAP
Ministry of education, Chile (CONICYT), grant/award no. 3190369: FONDECYT-Postdoctorado
National Fund for Scientific and Technological Development (FONDECYT), grant/award no. 1211338: The role of plankton dynamics in air-sea fluxes of climate-relevant trace gases and atmospheric conditions in the Northern Antarctic Peninsula
Coverage:
Median Latitude: -64.681409 * Median Longitude: -62.902941 * South-bound Latitude: -65.051633 * West-bound Longitude: -64.523633 * North-bound Latitude: -64.285350 * East-bound Longitude: -61.697200
Date/Time Start: 2020-02-09T23:06:26 * Date/Time End: 2020-02-16T21:50:19
Minimum DEPTH, water: 0.496 m * Maximum DEPTH, water: 723.001 m
Event(s):
ECA56_GS1 (GS1) * Latitude: -64.622283 * Longitude: -62.227017 * Date/Time: 2020-02-09T23:45:02 * Location: Gerlache-Bismarck Strait, Antarctic Peninsula * Campaign: ECA56 (Chilean Antarctic Expedition #56) * Basis: Karpuj * Method/Device: CTD/Rosette (CTD-RO)
ECA56_GS2 (GS2) * Latitude: -64.562000 * Longitude: -62.306383 * Date/Time: 2020-02-09T23:06:26 * Location: Gerlache-Bismarck Strait, Antarctic Peninsula * Campaign: ECA56 (Chilean Antarctic Expedition #56) * Basis: Karpuj * Method/Device: CTD/Rosette (CTD-RO)
ECA56_GS3 (GS3) * Latitude: -64.511050 * Longitude: -62.378617 * Date/Time: 2020-02-10T09:23:29 * Location: Gerlache-Bismarck Strait, Antarctic Peninsula * Campaign: ECA56 (Chilean Antarctic Expedition #56) * Basis: Karpuj * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventHöfer, Juan
2Date/Time localDate/Time localHöfer, Juan
3DATE/TIMEDate/TimeHöfer, JuanGeocode – UTC
4LATITUDELatitudeHöfer, JuanGeocode
5LONGITUDELongitudeHöfer, JuanGeocode
6DEPTH, waterDepth watermHöfer, JuanCTD, Sea-Bird, SBE 25plus; calculated using SBE Data Processing Version 7.22.5Geocode
7Pressure, waterPressdbarHöfer, JuanCTD, Sea-Bird, SBE 25plus
8Temperature, waterTemp°CHöfer, JuanCTD, Sea-Bird, SBE 25plus
9ConductivityCondmS/cmHöfer, JuanCTD, Sea-Bird, SBE 25plus; measured with conductivity sensor, SEA-BIRD, SBE 4
10SalinitySalHöfer, JuanCTD, Sea-Bird, SBE 25plus; calculated using SBE Data Processing Version 7.22.5PSU
11Temperature, water, potentialTpot°CHöfer, JuanCTD, Sea-Bird, SBE 25plus; calculated using SBE Data Processing Version 7.22.5 and SEAWATER Routines
12Density, sigma-theta (0)Sigma-thetakg/m3Höfer, JuanCTD, Sea-Bird, SBE 25plus; calculated using SBE Data Processing Version 7.22.5 and SEAWATER Routines
13OxygenO2mg/lHöfer, JuanCTD, Sea-Bird, SBE 25plus; equipped with Dissolved oxygen sensor, Sea-Bird, SBE 43; Calculation according to Morgan (1994; SEAWATER Routines)
14Quality flag, oxygenQF O2Höfer, JuanSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)QC flag meanings: 0:no QC, 1:good, 2:probably good, 3:probably bad, 4:bad, 5-7:not used, 8:interpolated, 9:missing
15Oxygen saturationO2 sat%Höfer, JuanCTD, Sea-Bird, SBE 25plus; equipped with Dissolved oxygen sensor, Sea-Bird, SBE 43; Calculation according to Morgan (1994; SEAWATER Routines)
16Chlorophyll aChl aµg/lHöfer, JuanCTD, Sea-Bird, SBE 25plus; measured with Fluorometer, WET Labs, ECO-AFL
17Number of observationsNOBS#Höfer, JuanCTD, Sea-Bird, SBE 25plus
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:
271176 data points

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