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Biehler, Antoine; Tremblay, Catherine; Buffin-Bélanger, Thomas; Chaillou, Gwénaëlle (2019): Geochemical data collected in shallow groundwater and river water in a subpolar environment (Matane river, QC, Canada) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.908290, Supplement to: Biehler, Antoine; Chaillou, Gwénaëlle; Buffin-Bélanger, Thomas; Baudron, Paul (2020): Hydrological connectivity in the aquifer–river continuum: Impact of river stages on the geochemistry of groundwater floodplains. Journal of Hydrology, 590, 125379, https://doi.org/10.1016/j.jhydrol.2020.125379

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Abstract:
The study is based on a complex and unique data set of radon-222 activity (i.e., 222Rn), water stable isotope (i.e., _18O), and ancillary physicochemical parameters (i.e., temperature, electrical conductivity, pH) undertaken to better understand the hydrogeochemical connectivity between groundwater and river water in a meander floodplain (Matane River, QC, Canada). Using an array of 21 piezometers inserted into an 18 ha meander floodplain, the geochemical properties of shallow groundwater were investigated over nine sampling campaigns between 2011 and 2017. The objective was to explore the seasonal geochemical variations in response to river discharge with a specific focus on the spatial extent of the hyporheic zone.
Keyword(s):
aquifer-river connectivity; groundwater geochemistry; radon; subpolar river system; water stable isotopes
Coverage:
Median Latitude: 48.667839 * Median Longitude: -67.353692 * South-bound Latitude: 48.665806 * West-bound Longitude: -67.357320 * North-bound Latitude: 48.669650 * East-bound Longitude: -67.347800
Date/Time Start: 2013-08-20T00:00:00 * Date/Time End: 2017-08-24T00:00:00
Minimum ELEVATION: 58.10 m a.s.l. * Maximum ELEVATION: 61.12 m a.s.l.
Event(s):
Matane_river * Latitude: 48.668011 * Longitude: -67.353575 * Date/Time Start: 2013-08-20T00:00:00 * Date/Time End: 2017-08-24T00:00:00 * Elevation: -6.4 m * Location: Quebec, Canada * Method/Device: Piezometer (PIEZO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Sample IDSample IDBiehler, Antoine
SiteSiteBiehler, AntoineSampling site
DATE/TIMEDate/TimeBiehler, AntoineGeocode
LATITUDELatitudeBiehler, AntoineGeocode
LONGITUDELongitudeBiehler, AntoineGeocode
TypeTypeBiehler, AntoineSampled water type
ELEVATIONElevationm a.s.l.Biehler, AntoineAutomated level loggers (Hobo U20-001) combined with DGPS elevationGeocode – Piezometric elevation
RadonRnmBq/m3Biehler, AntoineRadon detector, DURRIDGE, RAD7222 Radon, water
Radon, standard deviationRn std dev±Biehler, AntoineRadon detector, DURRIDGE, RAD7Standard deviation of 222 Radon, water
10 δ18O, waterδ18O H2O‰ SMOWBiehler, AntoineElement analyser isotope ratio mass spectrometer (EA-IRMS)vs. VSMOW
11 δ Deuterium, waterδD H2O‰ SMOWBiehler, AntoineElement analyser isotope ratio mass spectrometer (EA-IRMS)vs. VSMOW
12 Temperature, waterTemp°CBiehler, AntoineMultiparametric probe (600QS, YSI Inc.)
13 pHpHBiehler, AntoineMultiparametric probe (600QS, YSI Inc.)
14 Conductivity, electricalCond electrµS/cmBiehler, AntoineMultiparametric probe (600QS, YSI Inc.)Electrical conductivity, specific, water
15 OxygenO%Biehler, AntoineMultiparametric probe (600QS, YSI Inc.)Oxygen, dissolved, water
Size:
1586 data points

Data

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


Sample ID

Site

Date/Time

Latitude

Longitude

Type

Elevation [m a.s.l.]

Rn [mBq/m3]

Rn std dev [±]
10 
δ18O H2O [‰ SMOW]
11 
δD H2O [‰ SMOW]
12 
Temp [°C]
13 
pH
14 
Cond electr [µS/cm]
15 
O [%]
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