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Rutgers van der Loeff, Michiel M (2017): Radium data in the Lena Delta collected in summer 2013 on board RV Dalnie Zelentsy. PANGAEA, https://doi.org/10.1594/PANGAEA.884151, Supplement to: Charkin, Alexander N; Rutgers van der Loeff, Michiel M; Shakhova, Natalia E; Gustafsson, Örjan; Dudarev, Oleg V; Cherepnev, Maxim S; Salyuk, Anatoly; Koshurnikov, Andrey V; Spivak, Eduard A; Gunar, Alexey Y; Ruban, Alexey S; Semiletov, Igor P (2017): Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea. The Cryosphere, 11(5), 2305-2327, https://doi.org/10.5194/tc-11-2305-2017

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Abstract:
Water samples were collected in September 2013 during the "Lena Delta 2013" hydrological survey expedition on board RV Dalnie Zelentsy (Gonçalves-Araujo et al., 2015, doi:10.3389/fmars.2015.00108). A well pump was lowered to the desired depth and the sample was pumped through a hose into a cubitainer on deck.
Water samples were immediately passed over Mn-coated acrylic fiber and analyzed on board for the short-lived radium isotopes with RaDeCC (Moore and Arnold, 1996. Measurement of 223Ra and 224Ra in coastal waters using a delayed coincidence counter. J. Geophys. Res. 101, 1321-1329, doi:10.1029/95JC03139). The analysis of supported activities in these samples was performed later in the Alfred-Wegener Institute (AWI) home laboratory in Bremerhaven. Ra was leached from the fiber with hot 6M HCl, coprecipitated as BaSO4, and counted with gamma spectroscopy for 226Ra and 228Ra (Moore, W.S., 1984. Radium isotope measurements using germanium detectors. Nuclear Instruments and Methods in Physics Research 223, 407-411).
Project(s):
Marine Geochemistry @ AWI (AWI_MarGeoChem)
Coverage:
Median Latitude: 73.063605 * Median Longitude: 129.752161 * South-bound Latitude: 71.706500 * West-bound Longitude: 127.316500 * North-bound Latitude: 74.060600 * East-bound Longitude: 132.466200
Date/Time Start: 2013-09-01T00:00:00 * Date/Time End: 2013-09-07T00:00:00
Minimum Elevation: -26.0 m * Maximum Elevation: -2.0 m
Event(s):
T1-1301 * Latitude: 71.739800 * Longitude: 129.722200 * Date/Time: 2013-09-01T15:30:00 * Elevation: -4.0 m * Campaign: Lena2013 * Basis: Dalniye Zelentsy * Method/Device: Multiple investigations (MULT)
T1-1303 * Latitude: 71.777220 * Longitude: 130.088000 * Date/Time: 2013-09-01T11:22:00 * Elevation: -12.0 m * Location: Laptev Sea * Campaign: Lena2013 * Basis: Dalniye Zelentsy * Method/Device: Multiple investigations (MULT)
T1-1305 * Latitude: 72.067060 * Longitude: 131.590890 * Date/Time: 2013-09-02T08:43:00 * Elevation: -16.0 m * Location: Laptev Sea * Campaign: Lena2013 * Basis: Dalniye Zelentsy * Method/Device: Multiple investigations (MULT)
Comment:
Activities of excess 224Ra, 226Ra and 228Ra in water samples collected in September 2013 during the "Lena Delta 2013" hydrological survey expedition on board RV Dalnie Zelentsy (Gonçalves-Araujo et al., 2015, doi:10.3389/fmars.2015.00108).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventRutgers van der Loeff, Michiel M
2Station labelStationRutgers van der Loeff, Michiel M
3LATITUDELatitudeRutgers van der Loeff, Michiel MGeocode
4LONGITUDELongitudeRutgers van der Loeff, Michiel MGeocode
5ELEVATIONElevationm a.s.l.Rutgers van der Loeff, Michiel MGeocode
6DEPTH, waterDepth watermRutgers van der Loeff, Michiel MGeocode
7VolumeVollRutgers van der Loeff, Michiel M
8SalinitySalRutgers van der Loeff, Michiel MConductivity meter
9DATE/TIMEDate/TimeRutgers van der Loeff, Michiel MGeocode – date of on-board RaDeCC counting
10Radium 224 excess224Ra xsdpm/100 lRutgers van der Loeff, Michiel MRaDeCCactivity of 224Ra in excess of its parent 228Th
11Radium 224 excess, standard deviation224Ra xs std dev±Rutgers van der Loeff, Michiel MRaDeCC1-sigma error
12Radium 226226Radpm/100 lRutgers van der Loeff, Michiel MGamma spectroscopy
13Radium 226, standard deviation226Ra std dev±Rutgers van der Loeff, Michiel MGamma spectroscopy1-sigma error
14Radium 228228Radpm/100 lRutgers van der Loeff, Michiel MGamma spectroscopy
15Radium 228, standard deviation228Ra std dev±Rutgers van der Loeff, Michiel MGamma spectroscopy1-sigma error
Size:
357 data points

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