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  • 1
    Publication Date: 2023-10-28
    Description: The outflow of Leverett Glacier, a large land-terminating glacier of the Greenland Ice Sheet was sampled over the 2015 ablation season. Dissolved organic carbon (DOC) concentrations, dissolved organic matter (DOM) fluorescence, and hydrogeochemical data (e.g. discharge, specific conductivity, pH, and turbidity) were analyzed to assess changing DOM sources over the melt season. DOC concentrations and red-shifted fluorescence suggest terrestrial inputs from overridden soils dominated DOM early season inputs before progressive dilution with increasing discharge. During the outburst period, supraglacial drainage events disrupted the subglacial drainage system and introduced dominant protein-like fluorescence signatures not observed in basal flow. These results suggest that subglacial hydrology and changing water sources influence exported DOC concentration and DOM composition, differentiated through fluorescence characteristics. The outburst and post-outburst periods were characterized by protein-like fluorescence from supraglacial and potentially subglacial microbial sources.
    Keywords: Campbell Scientific 247-L Conductivity and Temperature Probe; Carbon, organic, dissolved; Carbon, organic, dissolved load; Conductivity; DATE/TIME; Day of the year; Dissolved Organic Matter; DOM; Event label; Flow rate; Fluorescence; Fluorescence, dissolved organic matter, at 317 nm wavelength; Fluorescence, dissolved organic matter, at 368 nm wavelength; Fluorescence, dissolved organic matter, at 416 nm wavelength; Fluorescence, dissolved organic matter, at 425 nm wavelength; Fluorescence, dissolved organic matter, at 483 nm wavelength; Fluorescence spectrometer, AquaLog, HORIBA JobinYvon; glaciers; Greenland; Honeywell Durafet pH sensors; Lachat QuickChem 8500 flow injection autoanalyser; L Atalante; Leverett_glacier_basal_ice; Leverett_glacier_snow; Leverett_glacier_time_series; Nitrogen in nitrate; PARAFAC; Period; pH; Phosphorus in orthophosphate; Pressure transducer, HOBO; Roorkee Industries Suspended Sediment Sampler USDH-48; Shimadzu TOC-L total organic carbon analyzer; SNOW; Snow/ice sample; Suspended particulate matter; Thermo Scientific Dionex IonPac AS11-HC-4μm Anion-Exchange Column fitted to a Thermo Scientific Dionex ICS-5000 Ion Chromatography; ZAIROV
    Type: Dataset
    Format: text/tab-separated-values, 785 data points
    Location Call Number Limitation Availability
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  • 2
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    PANGAEA
    In:  Supplement to: Hatton, Jade Elizabeth; Hendry, Katharine R; Hawkings, Jonathan; Wadham, Jemma; Kohler, Tyler; Stibal, Marek; Beaton, Alexander; Bagshaw, Elizabeth; Telling, J (2019): Investigation of subglacial weathering under the Greenland Ice Sheet using silicon isotopes. Geochimica et Cosmochimica Acta, 247, 191-206, https://doi.org/10.1016/j.gca.2018.12.033
    Publication Date: 2023-09-30
    Description: This data product contains dissolved and amorphous particulate silicon concentrations and isotopic compositions, and ancillary data (discharge, conductivity, suspended particulate matter, pH, major ion data) for glacial meltwaters collected from two glaciers in Greenland: Leverett Glacier (67 degrees N, 50 degrees W) and Kiattuut Sermiat (61 degrees N, 45 degrees W).
    Keywords: Aluminium; Bicarbonate; Calcium; Chloride; Conductivity, electrical; DATE/TIME; Day of the year; Event label; Fluoride; Glacier discharge; Greenland; Ion chromatography; Kiattuut_glacier; Leverett_glacier; Magnesium; Multi-Collector ICP-MS (MC-ICP-MS); Nitrate; Original value; pH; Potassium; Silicon; Silicon, particulate amorphous; Sodium; Sulfate; Suspended particulate matter; Water sample; WS; Year of observation; δ30Si, silicon dissolved; δ30Si, silicon particulate amorphous
    Type: Dataset
    Format: text/tab-separated-values, 6107 data points
    Location Call Number Limitation Availability
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  • 3
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    PANGAEA
    In:  Supplement to: Hatton, Jade Elizabeth; Hendry, Katharine R; Hawkings, Jonathan; Wadham, Jemma; Opfergelt, Sophie; Kohler, Tyler; Yde, Jacob; Stibal, Marek; Žárský, Jakub (2019): Silicon isotopes in Arctic and sub-Arctic glacial meltwaters: the role of the subglacial weathering in the silicon cycle. Proceedings of the Royal Society A-Mathematical Physical and Engineering Sciences, 475(2228), https://doi.org/10.1098/rspa.2019.0098
    Publication Date: 2023-09-30
    Description: This data product contains dissolved and amorphous particulate silicon concentrations and isotopic compositions, and ancillary data (discharge, conductivity, suspended particulate matter, pH, major ion data) for glacial meltwaters collected from Pan Arctic and Subarctic glacial catchments.
    Keywords: Austerdalsbreen_glacier; Bicarbonate; Bicarbonate ion; Boverbreen_glacier; Calcium; Calcium cation; Chloride; Chloride anion; Conductivity, electrical; DATE/TIME; Disko_10_glacier; Disko_11_glacier; Disko_13_glacier; Disko_6_glacier; Drangajoekull_glacier; Eagle_glacier; Ebbabreen_glacier; Eyjabakkajoekull_glacier; Fluoride; Glacier; Herbert_glacier; ICY-LAB; Isotope CYcling in the LABrador Sea; Kuannersuit_glacier; Langjoekull_glacier; LATITUDE; Lemon_glacier; LONGITUDE; Magnesium; Magnesium cation; Mendenhall_glacier; MULT; Multiple investigations; Nansenbreen_glacier; pH; Potassium; Potassium cation; Ratio; Sefstroembreen_glacier; Silicon; Silicon, particulate amorphous; Skaftrafelljokull_glacier; Sodium; Sodium cation; Solheimajoekull_glacier; Styggedalsbreen_glacier; Sulfate; Sulfate anion; Suspended particulate matter; Temperature, water; δ30Si, silicon dissolved; δ30Si, silicon particulate amorphous
    Type: Dataset
    Format: text/tab-separated-values, 529 data points
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2024-04-30
    Description: This data product contains dissolved silicon concentrations and isotopic composition, major ion concentrations and discharge for streams in Potter Peninsula, King George Island and Commonwealth Stream, McMurdo Dry Valleys, Antarctica.
    Keywords: Antarctica; Calcium; Chloride; CommonwealthStreamGauge; CommonwealthStreamMouth; DATE/TIME; Day of the year; Discharge; Event label; IMCOAST/IMCONet; Impact of climate induced glacier melt on marine coastal systems, Antarctica; LATITUDE; LONGITUDE; Magnesium; Potassium; PotterPeninsula_W19; PotterPeninsula_W20; PotterPeninsula_W21; PotterPeninsula_W22; PotterPeninsula_W23; PotterPeninsula_W24; PotterPeninsula_W25; PotterPeninsula_W35; PotterPeninsula_W39; PotterPeninsula_W40; PotterPeninsula_W41; PotterPeninsula_W45; PotterPeninsula_W49; PotterPeninsula_W50; Potter Peninsula, King George Island, Western Antarctica; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Ratio; Sample code/label; Silicon; Silicon Isotope Geochemistry; Site; Sodium; SPP1158; Stream Weathering; Subglacial Weathering; Sulfate; Water sample; WS; δ30Si, error; δ30Si, silicon dissolved
    Type: Dataset
    Format: text/tab-separated-values, 608 data points
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2024-06-03
    Description: Dataset containing hydrographic and biogeochemical data from two fjords (Godhäbsfjord and Ameralik Fjord) in southwest Greenland. Data was collected during expeditions in July 2018 (KQ2018) and September 2019 (TU2019), as part of ERC funded (678371) project ICY-LAB (Isotope CYcling in the LABrador Sea) and Royal Society funded (RGF\EA\181036) project Biogeochemical Cycling in Greenlandic Fjords. All data derived from sensors are reported as an average related to the sampling period for the laboratory analysed data. For data corresponding with Towfish samples, this is a time-averaged value, corresponding to the time the Towfish was in the water and sampling occurred. For Niskin derived samples, the average for sensor derived data was calculated from a 5m depth window from a depth profiler CTD. Sampling method refers to the method in water samples were collected, prior to filtration, storage and laboratory analysis. FISH = a Towfish that was deployed for surface (up to 5m, average 3m) sampling. All detailed sampling protocols and station descriptions can be found in the associated cruise reports.
    Keywords: Alkaline extraction and Hach Lange spectrophotometer with the Heteropoly Blue Method; Biogeochemical_Cycling; Biogeochemical Cycling; Biogeochemical Cycling in Greenlandic Fjords; Bottle, Niskin; Calcium; Campaign of event; Carbon, organic, dissolved; Chloride; Chlorophyll a; Coastal Cycling; Date/Time of event; Day of the year; DEPTH, water; Event label; EXO3; EXO3 Multiparameter Water Quality Sonde (YSI, Xylem Inc., USA); FISH; Fish undulating, recording system tow; Glacial Export; Grab; GRAB; Greenlandic Fjords; ICY-LAB; Ion chromatograph, Dionex Corporation, ICS-5000; Isotope CYcling in the LABrador Sea; Isotope Ratio Mass Spectrometer, IsoPrime100; KQ18; KQ18/AF1_FISH; KQ18/AF1_GRAB; KQ18/AF1_NISKIN-1; KQ18/AF1_NISKIN-2; KQ18/AF2_FISH; KQ18/AF2_NISKIN-1; KQ18/AF2_NISKIN-2; KQ18/AF2_NISKIN-3; KQ18/AF3_FISH; KQ18/AF3_NISKIN-1; KQ18/AF3_NISKIN-2; KQ18/AF3_NISKIN-3; KQ18/GF1_FISH; KQ18/GF1_NISKIN-1; KQ18/GF1_NISKIN-2; KQ18/GF1_NISKIN-3; KQ18/GF2_FISH; KQ18/GF2_NISKIN-1; KQ18/GF2_NISKIN-2; KQ18/GF3_NISKIN; KQ18/GF4_FISH; KQ18/GF5_FISH; KQ18/GF5_NISKIN-1; KQ18/GF5_NISKIN-2; KQ18/GF5_NISKIN-3; KQ18/GF6_FISH; KQ18/GF6_NISKIN-1; KQ18/GF6_NISKIN-2; Latitude of event; Longitude of event; Magnesium; NIS; Nitrate; Nitrite; Nutrient Export; Phosphate; Potassium; R/V Kisaq; Salinity; Sample method; SEAL AutoAnalyzer 3 HR (AA3 HR); Shimadzu TOC-L total organic carbon analyzer; Silica, amorphous; Silicon, dissolved; Sodium; Station label; Sulfate; Temperature, water; TU19; TU19/AM10_FISH; TU19/AM10_NISKIN-1; TU19/AM10_NISKIN-2; TU19/AM10_TM-NISKIN; TU19/AM12_GRAB; TU19/AM3_FISH; TU19/AM3_NISKIN-1; TU19/AM3_NISKIN-2; TU19/AM3_TM-NISKIN; TU19/AM7_FISH; TU19/AM7_NISKIN-1; TU19/AM7_NISKIN-2; TU19/AM7_TM-NISKIN-1; TU19/AM7_TM-NISKIN-2; TU19/GF10_FISH; TU19/GF10_NISKIN-1; TU19/GF10_NISKIN-2; TU19/GF10_TM-NISKIN-1; TU19/GF10_TM-NISKIN-2; TU19/GF10_TM-NISKIN-3; TU19/GF13_FISH; TU19/GF13_NISKIN-1; TU19/GF13_NISKIN-2; TU19/GF13_TM-NISKIN; TU19/GF2_NISKIN; TU19/GF3_FISH; TU19/GF3_NISKIN-1; TU19/GF3_NISKIN-2; TU19/GF5_FISH; TU19/GF5_NISKIN; TU19/GF7_FISH; TU19/GF7_NISKIN-1; TU19/GF7_NISKIN-2; TU19/GF7_TM-NISKIN-1; TU19/GF7_TM-NISKIN-2; TU19/GF-Inlet_FISH; TU19/GF-Inlet_NISKIN; TU19/GF-Inlet_TM-NISKIN; TU19/GFX_FISH; TU19/GFX_NISKIN-1; TU19/GFX_NISKIN-2; TU19/GFX_TM-NISKIN-1; TU19/GFX_TM-NISKIN-2; TU19/GFX_TM-NISKIN-3; Tulu; Turbidity (Nephelometric turbidity unit); δ18O
    Type: Dataset
    Format: text/tab-separated-values, 1148 data points
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-06-12
    Keywords: Campaign of event; CTD/Rosette; CTD data; CTD-RO; Date/Time of event; DEPTH, water; Event label; Greenland; isotope; Latitude of event; Longitude of event; Multiparameter Sonde, YSI, Xylem Inc., USA, EXO2 [serial number: 18K105254]; pore water; Salinity; sediment; silicon; Temperature, water; TU19; TU19-AM10; TU19-GF-inlet; Tulu
    Type: Dataset
    Format: text/tab-separated-values, 124 data points
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-06-12
    Keywords: Aluminium; Campaign of event; CDRILL; Core drilling; CTD data; Date/Time of event; DEPTH, sediment/rock; Event label; Gas chromatography triple quadrupole Mass Spectrometer (ICP-QQQ-MS), Agilent Technologies, Agilent 8800; Greenland; ICP-MS, Thermo Scientific Neptune; Iron; isotope; Latitude of event; Lithium; Longitude of event; Magnesium; Manganese; Nitrate and Nitrite; pore water; Potassium; sediment; Segmented flow colorimetric auto-analyser, SEAL AutoAnalyzer 3; Silica, dissolved; silicon; TU19; TU19_AM10a; TU19_GF-inlet; Tulu; δ30Si; δ30Si, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 336 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2024-06-12
    Keywords: Campaign of event; CDRILL; Core drilling; CTD data; Date/Time of event; Event label; Greenland; ICP-MS, Thermo Scientific Neptune; isotope; Latitude of event; Longitude of event; pore water; sediment; silicon; Time Stamp; TU19; TU19_GF-inlet; Tulu; δ30Si; δ30Si, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 39 data points
    Location Call Number Limitation Availability
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  • 9
    Publication Date: 2024-06-12
    Keywords: Campaign of event; CDRILL; Core drilling; CTD data; Date/Time of event; DEPTH, sediment/rock; Event label; Greenland; ICP-MS, Thermo Scientific Neptune; isotope; Latitude of event; Longitude of event; pore water; sediment; see comment; Silica, amorphous; silicon; TU19; TU19_AM10a; TU19_GF-inlet; Tulu; δ30Si; δ30Si, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 261 data points
    Location Call Number Limitation Availability
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  • 10
    Publication Date: 2024-06-12
    Keywords: Campaign of event; CTD data; Date/Time of event; DEPTH, water; Event label; EXO3; EXO3 Multiparameter Water Quality Sonde (YSI, Xylem Inc., USA); Grab; GRAB; Greenland; isotope; Latitude of event; Longitude of event; pore water; Salinity; sediment; silicon; TU19; TU19-AM12; Tulu
    Type: Dataset
    Format: text/tab-separated-values, 1 data points
    Location Call Number Limitation Availability
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