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von Appen, Wilken-Jon; Beszczynska-Möller, Agnieszka; Fahrbach, Eberhard (2015): Physical oceanography and current meter data from mooring F3-15. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.853902, Supplement to: Pérez-Hernández, M Dolores; Pickart, Robert S; Torres, Daniel J; Bahr, Frank; Sundfjord, Arild; Ingvaldsen, Randi; Renner, Angelika; Beszczynska-Möller, Agnieszka; von Appen, Wilken-Jon; Pavlov, Vladimir (2019): Structure, Transport, and Seasonality of the Atlantic Water Boundary Current North of Svalbard: Results From a Yearlong Mooring Array. Journal of Geophysical Research: Oceans, 124(3), 1679-1698, https://doi.org/10.1029/2018JC014759

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Abstract:
The characteristics and seasonality of the Svalbard branch of the Atlantic Water (AW) boundary current in the Eurasian Basin are investigated using data from a six‐mooring array deployed near 30°E between September 2012 and September 2013. The instrument coverage extended to 1,200‐m depth and approximately 50 km offshore of the shelf break, which laterally bracketed the flow. Averaged over the year, the transport of the current over this depth range was 3.96 ± 0.32 Sv (1 Sv = 10^6 m^3/s). The transport within the AW layer was 2.08 ± 0.24 Sv. The current was typically subsurface intensified, and its dominant variability was associated with pulsing rather than meandering. From late summer to early winter the AW was warmest and saltiest, and its eastward transport was strongest (2.44 ± 0.12 Sv), while from midspring to midsummer the AW was coldest and freshest and its transport was weakest (1.10 ± 0.06 Sv). Deep mixed layers developed through the winter, extending to 400‐ to 500‐m depth in early spring until the pack ice encroached the area from the north shutting off the air‐sea buoyancy forcing. This vertical mixing modified a significant portion of the AW layer, suggesting that, as the ice cover continues to decrease in the southern Eurasian Basin, the AW will be more extensively transformed via local ventilation.
Related to:
von Appen, Wilken-Jon (2017): Physical oceanography raw data from moorings recovered during POLARSTERN cruise PS93.1. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.870999
Project(s):
Coverage:
Latitude: 78.831800 * Longitude: 8.004800
Date/Time Start: 2012-06-22T09:30:00 * Date/Time End: 2015-06-30T08:00:00
Minimum DEPTH, water: 20.0 m * Maximum DEPTH, water: 1009.8 m
Event(s):
F3-15 * Latitude Start: 78.831800 * Longitude Start: 8.004800 * Latitude End: 78.831800 * Longitude End: 8.004800 * Date/Time Start: 2012-06-22T09:30:00 * Date/Time End: 2015-06-30T08:00:00 * Elevation Start: -1029.0 m * Elevation End: -1029.0 m * Location: North Greenland Sea * Campaign: ARK-XXVII/1 (PS80) * Basis: Polarstern * Method/Device: Mooring (MOOR)
Comment:
Gear 1: CTD-R SBE37, SN 1237; Gear 2: CTD-R SBE37, SN 9487; Gear 3: CTD-R SBE37, SN 230; Gear 4: RCM9/11, SN 461; Gear 5: RCM7/8, SN 9770; Gear 6: RCM9/11, SN 506; Gear 7: RCM9/11, SN 504; Gear 8: RDI-ADCP, SN 1408601; Gear 9: RDI-ADCP, SN 1408602; Gear 10: RDI-ADCP, SN 1408603; Gear 11: RDI-ADCP, SN 1408604; Gear 12: RDI-ADCP, SN 1408605; Gear 13: RDI-ADCP, SN 1408606; Gear 14: RDI-ADCP, SN 1408607; Gear 15: RDI-ADCP, SN 1408608; Gear 16: RDI-ADCP, SN 1408609; Gear 17: RDI-ADCP, SN 1408610; Gear 18: RDI-ADCP, SN 1408611; Gear 19: RDI-ADCP, SN 1408612; Gear 20: RDI-ADCP, SN 1408613; Gear 21: RDI-ADCP, SN 1408614; Gear 22: RDI-ADCP, SN 1408615; Gear 23: RDI-ADCP, SN 1408616; Gear 24: RDI-ADCP, SN 1408617; Gear 25: RDI-ADCP, SN 1408618; Gear 26: RDI-ADCP, SN 1408619; Gear 27: RDI-ADCP, SN 1408620; Gear 28: RDI-ADCP, SN 1408621; Gear 29: RDI-ADCP, SN 1408622; Gear 30: RDI-ADCP, SN 1408623; Gear 31: RDI-ADCP, SN 1408624; Gear 32: RDI-ADCP, SN 1408625; Gear 33: RDI-ADCP, SN 1408626; Gear 34: RDI-ADCP, SN 1408627; Gear 35: RDI-ADCP, SN 1408628; Gear 36: RDI-ADCP, SN 1408629; Gear 37: RDI-ADCP, SN 1408630; Gear 38: RDI-ADCP, SN 1408631
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/Timevon Appen, Wilken-Jonsee comment for gearGeocode
2Gear identification numberGear IDvon Appen, Wilken-Jonsee comment for gear
3DEPTH, waterDepth watermvon Appen, Wilken-Jonsee comment for gearGeocode
4Pressure, waterPressdbarvon Appen, Wilken-Jonsee comment for gear
5Temperature, waterTemp°Cvon Appen, Wilken-Jonsee comment for gearITS-90
6SalinitySalvon Appen, Wilken-Jonsee comment for gearPSU
7Current velocity, horizontalCV horcm/svon Appen, Wilken-Jonsee comment for gear
8Current directionDIRdegvon Appen, Wilken-Jonsee comment for gear
9Current velocity, east-westUCcm/svon Appen, Wilken-Jonsee comment for gear
10Current velocity, north-southVCcm/svon Appen, Wilken-Jonsee comment for gear
Size:
4053940 data points

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