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Fernández-Méndez, Mar; Peeken, Ilka; Boetius, Antje (2014): Integrated net primary production during POLARSTERN cruise ARK-XXVII/3 (IceArc) in 2012. PANGAEA, https://doi.org/10.1594/PANGAEA.834218, In supplement to: Fernández-Méndez, Mar; Katlein, Christian; Rabe, Benjamin; Nicolaus, Marcel; Peeken, Ilka; Bakker, Karel; Flores, Hauke; Boetius, Antje (2015): Photosynthetic production in the central Arctic Ocean during the record sea-ice minimum in 2012. Biogeosciences, 12, 3525-3549, https://doi.org/10.5194/bg-12-3525-2015

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Abstract:
Depth-integrated in situ rates were calculated for each environment as a function of the available photosynthetically active radiation (PAR). Irradiance profiles were calculated for each environment (sea ice, melt pond, water under the ice and open water) from the daily average incoming solar shortwave irradiance measured by a pyranometer (Kipp & Zonen, Delft, Netherland) mounted on the ship. We used light attenuation coefficients of 10 m**-1 for snow, 1.5 m**-1 for sea ice (Perovich, 1996) and 0.1 m**-1 for Atlantic-influenced Arctic seawater, based on literature values and observations during the cruise. Planar irradiance was transformed to scalar irradiance according to Ehn and Mundy (2013) and Katlein et al., (2014). Water column production was integrated over the euphotic zone (1% of incoming irradiance) and sea ice production over the ice core thickness. Melt pond coverage and sea ice concentration were taken into account when calculating the total primary production per area.
Funding:
Seventh Framework Programme (FP7), grant/award no. 294757: Assessment of bacterial life and matter cycling in deep-sea surface sediments
Coverage:
Median Latitude: 83.450805 * Median Longitude: 87.684613 * South-bound Latitude: 77.396830 * West-bound Longitude: 29.953830 * North-bound Latitude: 88.827670 * East-bound Longitude: 133.341830
Date/Time Start: 2012-08-06T07:04:00 * Date/Time End: 2012-09-27T08:25:00
Minimum Elevation: -4410.3 m * Maximum Elevation: -530.1 m
Event(s):
PS80/209-1 * Latitude: 81.493500 * Longitude: 30.172170 * Date/Time: 2012-08-06T07:04:00 * Elevation: -709.1 m * Location: Arctic Ocean * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: 32.1 708 m; Position sensor: Ship's GPS
PS80/213-1 * Latitude: 81.835830 * Longitude: 29.953830 * Date/Time: 2012-08-06T20:10:00 * Elevation: -3151.7 m * Location: Arctic Ocean * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: 3202 32.1; Position sensor: Ship's GPS
PS80/215-1 * Latitude: 82.495170 * Longitude: 30.003000 * Date/Time: 2012-08-07T05:32:00 * Elevation: -3626.8 m * Location: Arctic Ocean * Campaign: ARK-XXVII/3 (PS80 IceArc) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO) * Comment: 3694 m, SE 32.1; Position sensor: Ship's GPS
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2Optional event labelEvent 2
3GearGear
4Date/Time of eventDate/Time
5Latitude of eventLatitude
6Longitude of eventLongitude
7Net primary production of carbonNPP Cmg/m2/dayBoetius, AntjeCalculated
8Depth of the euphotic zonez(eu)mBoetius, Antjeaverage
9Sea ice thicknessEsEsmBoetius, Antje
10Melt pond depthMelt pond depthmBoetius, Antje
11Short-wave downward (GLOBAL) radiationSWDµmol photons/m2/sBoetius, Antje
Size:
198 data points

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