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Liguori, Bianca T P; Ehlert, Claudia; Nöthig, Eva-Maria; van Ooijen, Jan C; Pahnke, Katharina (2020): Silicon isotopes in surface waters during POLARSTERN cruise PS94 (ARK-XXIX/3) in 2015. PANGAEA, https://doi.org/10.1594/PANGAEA.920105

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Abstract:
In this study we present dissolved and particulate silicon isotope results in surface waters obtained as part of the GEOTRACES central Arctic Ocean section GN04 (2015) onboard POLARSTERN cruise PS94 (ARK-XXIX/3).
The aim of the study was to investigate in more detail the influence of the Transpolar Drift on the Si cycle in the AO comparing areas with and without its influence.
Keyword(s):
Arctic Ocean; PS94; Silicon isotopes
Supplement to:
Liguori, Bianca T P; Ehlert, Claudia; Nöthig, Eva-Maria; van Ooijen, Jan C; Pahnke, Katharina (2021): The Transpolar Drift Influence on the Arctic Ocean Silicon Cycle. Journal of Geophysical Research: Oceans, 126(11), https://doi.org/10.1029/2021JC017352
Further details:
De La Rocha, Christina L (2002): Measurement of silicon stable isotope natural abundances via multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS). Geochemistry, Geophysics, Geosystems, 3(8), 1-8, https://doi.org/10.1029/2002GC000310
Coverage:
Median Latitude: 86.112470 * Median Longitude: 69.490017 * South-bound Latitude: 81.847170 * West-bound Longitude: 0.212710 * North-bound Latitude: 89.014830 * East-bound Longitude: 179.874170
Date/Time Start: 2015-08-22T22:06:00 * Date/Time End: 2015-09-22T18:53:00
Minimum DEPTH, water: 10 m * Maximum DEPTH, water: 174 m
Event(s):
PS94/032-8  * Latitude Start: 81.847170 * Longitude Start: 30.851500 * Latitude End: 81.856330 * Longitude End: 30.917170 * Date/Time Start: 2015-08-22T22:06:00 * Date/Time End: 2015-08-23T03:01:00 * Elevation Start: -3168.5 m * Elevation End: -3162.2 m * Location: Arctic Ocean * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: In situ pump (ISP)
PS94/032-9  * Latitude: 81.856500 * Longitude: 30.915670 * Date/Time: 2015-08-23T03:30:00 * Elevation: -3162.7 m * Location: Arctic Ocean * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO)
PS94/040-3  * Latitude: 82.708830 * Longitude: 30.783500 * Date/Time: 2015-08-24T07:19:00 * Elevation: -3701.0 m * Location: Arctic Ocean * Campaign: PS94 (ARK-XXIX/3) * Basis: Polarstern * Method/Device: CTD/Rosette (CTD-RO)
Comment:
Flag scheme in accordance to GEOTRACES quality flag policy. https://www.geotraces.org/geotraces-quality-flag-policy/
Notes:
*calculated δ30Si-DSi: Dissolved Silicon Isotope Composition calculated from δ29Si-DSi multiplied by 1.93 (De La Rocha, 2002)
* calculated 2SD δ30Si-DSi: Dissolved Silicon standard deviation calculated from δ29Si-DSi standard deviation multiplied by 1.93 (De La Rocha, 2002)
* calculated δ30Si-bSiO2: Biogenic Silica Isotope Composition calculated from δ29Si-bSiO2 multiplied by 1.93 (De La Rocha, 2002)
* calculated 2SD δ30Si-bSiO2: Biogenic Silica standard deviation calculated from δ29Si-bSiO2 standard deviation multiplied by 1.93 (De La Rocha, 2002)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventLiguori, Bianca T P
Station labelStationLiguori, Bianca T PStation ID
Cast numberCastLiguori, Bianca T P
DATE/TIMEDate/TimeLiguori, Bianca T PGeocode – UTC
LATITUDELatitudeLiguori, Bianca T PGeocode
LONGITUDELongitudeLiguori, Bianca T PGeocode
DEPTH, waterDepth watermLiguori, Bianca T PGeocode – Sample Depth
δ29Si, silicon dissolvedδ29Si DSiLiguori, Bianca T Pδ29Si-DSi
δ29Si, standard deviationδ29Si std dev±Liguori, Bianca T P2SD δ29Si-DSi
10 Quality flagQFLiguori, Bianca T PSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)δ29Si-DSi
11 δ30Si, silicon dissolvedδ30Si DSiLiguori, Bianca T PCalculated, see Commentδ30Si-DSi
12 δ30Si, standard deviationδ30Si std dev±Liguori, Bianca T PCalculated, see Comment2SD δ30Si-DSi
13 Quality flagQFLiguori, Bianca T PSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)δ30Si-DSi
14 Number of measurementsn#Liguori, Bianca T Pδ30Si-DSi
15 δ29Si, biogenic silicaδ29Si bSiO2Liguori, Bianca T Pδ29Si-bSiO2
16 δ29Si, standard deviationδ29Si std dev±Liguori, Bianca T P2SD δ29Si-bSiO2
17 Quality flagQFLiguori, Bianca T PSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)δ29Si-bSiO2
18 δ30Si, biogenic silicaδ30Si bSiO2Liguori, Bianca T PCalculated, see Commentδ30Si-bSiO2
19 δ30Si, standard deviationδ30Si std dev±Liguori, Bianca T PCalculated, see Comment2SD δ30Si-bSiO2
20 Quality flagQFLiguori, Bianca T PSeadatanet flag: Data quality control procedures according to SeaDataNet (2010)δ30Si-bSiO2
21 Number of measurementsn#Liguori, Bianca T Pδ30Si-bSiO2
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
414 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Event

Station
(Station ID)

Cast

Date/Time
(UTC)

Latitude

Longitude

Depth water [m]
(Sample Depth)

δ29Si DSi []
(δ29Si-DSi)

δ29Si std dev [±]
(2SD δ29Si-DSi)
10 
QF
(δ29Si-DSi, Seadatanet flag: D...)
11 
δ30Si DSi []
(δ30Si-DSi, Calculated, see Co...)
12 
δ30Si std dev [±]
(2SD δ30Si-DSi, Calculated, se...)
13 
QF
(δ30Si-DSi, Seadatanet flag: D...)
14 
n [#]
(δ30Si-DSi)
15 
δ29Si bSiO2 []
(δ29Si-bSiO2)
16 
δ29Si std dev [±]
(2SD δ29Si-bSiO2)
17 
QF
(δ29Si-bSiO2, Seadatanet flag:...)
18 
δ30Si bSiO2 []
(δ30Si-bSiO2, Calculated, see ...)
19 
δ30Si std dev [±]
(2SD δ30Si-bSiO2, Calculated, ...)
20 
QF
(δ30Si-bSiO2, Seadatanet flag:...)
21 
n [#]
(δ30Si-bSiO2)
PS94/032-9 PS94/3292015-08-23T03:3081.8565030.91567501.200.2412.320.4612
PS94/032-9PS94/3292015-08-23T03:3081.8565030.915671011.100.1612.120.3112
PS94/040-3 PS94/4032015-08-24T07:1982.7088330.783501001.060.1512.050.2911
PS94/050-8 PS94/5082015-08-27T00:5784.3858329.86983501.380.0812.660.1511
PS94/050-8PS94/5082015-08-27T00:5784.3858329.869831001.270.2512.450.4813
PS94/058-5 PS94/5852015-08-29T22:5185.3013359.94217301.250.1512.410.2911
PS94/058-5PS94/5852015-08-29T22:5185.3013359.94217501.450.1512.800.2911
PS94/058-3 PS94/5832015-08-29T22:5185.3013359.942171001.320.0212.550.0412
PS94/069-5 PS94/6952015-09-02T14:5086.9748358.83950101.210.0312.340.0612
PS94/069-5PS94/6952015-09-02T14:5086.9748358.83950300.780.1811.510.3512
PS94/069-5PS94/6952015-09-02T14:5086.9748358.83950501.600.1713.090.3311
PS94/069-5PS94/6952015-09-02T14:5086.9748358.839501011.040.0612.010.1211
PS94/081-7 PS94/8172015-09-06T04:0089.0050061.31917101.110.0112.140.0212
PS94/081-7PS94/8172015-09-06T04:0089.0050061.31917251.170.0212.260.0411
PS94/081-7PS94/8172015-09-06T04:0089.0050061.31917501.130.0612.180.1211
PS94/081-5 PS94/8152015-09-06T01:2988.9988361.279331001.320.0612.550.1212
PS94/096-7 PS94/9672015-09-11T23:0288.338170.21271101.300.1212.510.2314
PS94/096-7PS94/9672015-09-11T23:0288.338170.21271301.330.2112.570.4112
PS94/096-7PS94/9672015-09-11T23:0288.338170.21271500.950.0611.830.1213
PS94/096-7PS94/9672015-09-11T23:0288.338170.212711001.010.0411.950.0812
PS94/101-9 PS94/10192015-09-14T16:1587.499170.31412181.420.2412.740.4612
PS94/101-9PS94/10192015-09-14T16:1587.499170.31412391.420.0112.740.0212
PS94/101-9PS94/10192015-09-14T16:1587.499170.31412551.040.0712.010.1412
PS94/101-7 PS94/10172015-09-14T12:1387.50217179.83267991.030.2111.990.4112
PS94/101-7PS94/10172015-09-14T12:1387.50217179.832671741.020.0811.970.1511
PS94/117-6 PS94/11762015-09-19T07:2884.50683115.67917101.150.0712.220.1411
PS94/117-6PS94/11762015-09-19T07:2884.50683115.67917301.150.0412.220.0811
PS94/117-6PS94/11762015-09-19T07:2884.50683115.67917501.230.1212.370.2311
PS94/117-4 PS94/11742015-09-19T01:4484.52900115.887001001.180.0312.280.0611
PS94/125-7 PS94/12572015-09-22T16:3085.09783139.62667101.140.0412.200.0813
PS94/125-7PS94/12572015-09-22T16:3085.09783139.62667301.010.2211.950.4214
PS94/125-7PS94/12572015-09-22T16:3085.09783139.62667501.010.0111.950.0211
PS94/125-5 PS94/12552015-09-22T11:3885.08217139.772831001.160.2112.240.4112
PS94/032-8 PS94/3282015-08-22T22:0681.8471730.85150500.450.0710.870.0711
PS94/032-8PS94/3282015-08-22T22:0681.8471730.851501010.590.0411.140.0411
PS94/050-5 PS94/5052015-08-26T17:2384.3836730.23000500.760.0511.470.0511
PS94/050-5PS94/5052015-08-26T17:2384.3836730.230001000.940.0511.810.0511
PS94/081-9 PS94/8192015-09-06T11:1489.0148361.73533500.980.3911.890.3911
PS94/081-9PS94/8192015-09-06T11:1489.0148361.735331001.360.0512.620.0512
PS94/096-5 PS94/9652015-09-11T13:5188.347330.21961500.330.0710.640.0711
PS94/096-5PS94/9652015-09-11T13:5188.347330.219611000.660.0411.270.0411
PS94/101-6 PS94/10162015-09-14T06:2787.50233179.87417551.010.0511.950.0511
PS94/101-6PS94/10162015-09-14T06:2787.50233179.87417991.000.1411.930.1411
PS94/117-7 PS94/11772015-09-19T09:3184.49733115.70483500.290.0810.560.0811
PS94/125-8 PS94/12582015-09-22T18:5385.09767139.60150500.480.0410.930.0411
PS94/125-8PS94/12582015-09-22T18:5385.09767139.601501000.420.0310.810.0311