Inorganic carbon and geochemistry measurements from landfast sea ice in Resolute Passage, Nunavut, Canada, as part of the Arctic-ICE project, May - June 2010

Autoria(s): Brown, Kristina Anne; Miller, Lisa Ann; Mundy, Christopher John; Papakyriakou, Tim N; Francois, Roger; Gosselin, Michel; Carnat, Gauthier; Swystun, Kyle; Tortell, Philippe Daniel
Cobertura

MEDIAN LATITUDE: 74.708547 * MEDIAN LONGITUDE: -95.246844 * SOUTH-BOUND LATITUDE: 74.705700 * WEST-BOUND LONGITUDE: -95.259617 * NORTH-BOUND LATITUDE: 74.710100 * EAST-BOUND LONGITUDE: -95.194117 * DATE/TIME START: 2010-05-08T00:00:00 * DATE/TIME END: 2010-06-19T18:17:39
Data(s)

28/04/2010
Resumo

We conducted a six-week investigation of the sea ice inorganic carbon system during the winter-spring transition in the Canadian Arctic Archipelago. Samples for the determination of sea ice geochemistry were collected in conjunction with physical and biological parameters as part of the 2010 Arctic-ICE (Arctic - Ice-Covered Ecosystem in a Rapidly Changing Environment) program, a sea ice-based process study in Resolute Passage, Nunavut. The goal of Arctic-ICE was to determine the physical-biological processes controlling the timing of primary production in Arctic landfast sea ice and to better understand the influence of these processes on the drawdown and release of climatically active gases. The field study was conducted from 1 May to 21 June, 2010.
Formato

application/zip, 5 datasets
Identificador

https://doi.pangaea.de/10.1594/PANGAEA.845809

doi:10.1594/PANGAEA.845809
Idioma(s)

en
Publicador

PANGAEA
Relação

Brown, Kristina Anne; Miller, Lisa Ann; Mundy, Christopher John; Papakyriakou, Tim N; Francois, Roger; Gosselin, Michel; Carnat, Gauthier; Swystun, Kyle; Tortell, Philippe Daniel (2015): Inorganic carbon system dynamics in landfast Arctic sea ice during the early-melt period, Journal of Geophysical Research. Journal of Geophysical Research-Oceans, 120(5), 3542-3566, doi:10.1002/2014JC010620

Mundy, Christopher John; Gosselin, Michel; Gratton, Yves; Brown, Kristina Anne; Galindo, Virginie; Campbell, Karley; Levasseur, Maurice; Barber, David; Papakyriakou, Tim N; Bélanger, Simon (2010): Arctic - Ice-Covered Ecosystem in a Rapidly Changing Environment: Sea Ice Data Set, May-June 2010, Resolute Passage, NU, Canada. Centre for Earth Observation Science (CEOS), University of Manitoba, Winnipeg, Manitoba, Canada
Direitos

CC-BY-SA: Creative Commons Attribution-ShareAlike 3.0 Unported

Access constraints: unrestricted
Fonte

Centre for Earth Observation Science, University of Manitoba, Winnipeg, Manitoba, Canada
Palavras-Chave #[psu]; Alkalinity, total; Analyzed at COAS Stable Isotope Laboratory (Oregon State University). Oxygen isotopic values are reported in per mil with respect to Vienna Standard Mean Ocean Water (VSMOW) (standard error ± 0.05 per mil). See Brown et al. (2015) Table 1 for pooled standard deviation of duplicate analyses for geochemical parameters.; Analyzed at the GEOTOP Stable Isotope Laboratory (Universit_ du Qu_bec ö Montr_al) using a Micromass Isoprime continuous flow isotope ratio mass spectrometer equipped with a MultiFlow (Isoprime) automated injection system. Carbon isotopic values are reported in per mil (_) with respect to Vienna PeeDee Belemnite (VPDB) referenced to the NBS-19 and LSVEC scale (standard error ± 0.1 _). See [Brown et al., 2015] Table 1 for pooled standard deviation of duplicate analyses for geochemical parameters.; Analyzed at the GEOTOP Stable Isotope Laboratory (Universit_ du Qu_bec ö Montr_al) using a Micromass Isoprime continuous flow isotope ratio mass spectrometer equipped with a MultiFlow (Isoprime) automated injection system. Carbon isotopic values are reported in per mil with respect to Vienna PeeDee Belemnite (VPDB) referenced to the NBS-19 and LSVEC scale (standard error ± 0.1 per mil). See Brown et al. (2015) Table 1 for pooled standard deviation of duplicate analyses for geochemical parameters.; Arctic-ICE; Arctic-ICE2010; Arctic - Ice-Covered Ecosystem in a Rapidly Changing Environment; AT; Average; calculated flux; Carbon, inorganic, total; Carbon dioxide, partial pressure; Carbon dioxide flux; CO2 flux; Comment; Conductivity Meter, WTW Cond 330i, Nova Analytics; Coulometric titration; d13C TIC; d18O; Daily averaged sea ice temperature at surface, monitored using a thermocouple array secured within a 2 m long PVC tube and frozen into the ice. Measurements were taken every 3 seconds by a data logger (Campbell Scientific Model CR3000) and recorded in 1 minute averages over 23 depths from +0.21 m above the ice surface (upper 21 cm of snow) to -2.20 m below the ice surface.; Date/Time; DATE/TIME; delta 13C, total inorganic carbon; delta 18O; Depth, bottom/max; DEPTH, ice/snow; Depth, reference; Depth, top/min; Depth bot; Depth ice/snow; Depth of peeper center below snow-ice interface, or height above snow-ice interface (negative) for atmospheric measurements; Depth ref; Depth top; Description; Determined using an open-cell titration with an automated Dosimat 665 titrator (Metrohm) and Red Rod pH combination electrode (Radiometer Analytical). The titration endpoints were determined by non linear least squares fit (Dickson et al., 2007). Both TIC and TA were calibrated against certified reference materials (CRM 88 and 101) provided by Andrew Dickson (Scripps Institute of Oceanography). See Brown et al. (2015) Table 1 for pooled standard deviation of duplicate analyses for geochemical parameters.; Determined using an open-cell titration with an automated Dosimat 665 titrator (Metrohm) and Red Rod pH combination electrode (Radiometer Analytical). The titration endpoints were determined by non linear least squares fit [Dickson et al., 2007]. Both TIC and TA were calibrated against certified reference materials (CRM 88 and 101) provided by Andrew Dickson (Scripps Institute of Oceanography). See [Brown et al., 2015] Table 1 for pooled standard deviation of duplicate analyses for geochemical parameters.; EsEs; Freeboard; Grain size; h; Height; Height from the snow-ice interface; Hoar frost layer thickness; Hoar frost layer thickness from the snow-ice interface; Hoar frost thick; ICE; Ice station; ID; Identification; Investigator; Isotope sample Salinity [psu]; Latitude; LATITUDE; LI-8100 automated soil CO2 flux system (LiCOR Biosciences); Longitude; LONGITUDE; Lower limit of ice core sub-sample depth range; Lower limit of sackhole depth range from snow-ice interface; Lower limit of snow grain size sample height range; Lower limit of snow isotope sample height range; Lower limit of snow salinity sample height range; Mass spectrometer Finnigan Delta Plus XL; Mass spectrometer GV Instruments Isoprime; Measured coulometrically following Dickson et al. (2007) using either a VINDTA 3D (Marianda) or SOMMA system at the Institute of Ocean Sciences, Sidney, B.C., Canada. Both TIC and TA were calibrated against certified reference materials (CRM 88 and 101) provided by Andrew Dickson (Scripps Institute of Oceanography). See Brown et al. (2015) Table 1 for pooled standard deviation of duplicate analyses for geochemical parameters.; measured coulometrically following Dickson et al. [2007] using either a VINDTA 3D (Marianda) or SOMMA system at the Institute of Ocean Sciences, Sidney, B.C., Canada. Both TIC and TA were calibrated against certified reference materials (CRM 88 and 101) provided by Andrew Dickson (Scripps Institute of Oceanography). See [Brown et al., 2015] Table 1 for pooled standard deviation of duplicate analyses for geochemical parameters.; Measurement No.; No; Number; Open-cell titration; pCO2; Peeper; Resolute Passage, Nunavut; Sal brine; Salinity, brine; Sea Ice Core; Sea ice sal; Sea ice salinity; Sea ice thickness; Site, [1] = Peeper set 1; [2] = Peeper set 2. See [Brown et al., 2015] for reference.; Site, [MS##] = medium snow site; Site ID, [1] = High Snow; [2] = Medium Snow; [3] = Low Snow; snow; snow depth; Snow grain size; Snow Pit Site; Snow salinity; Snow thick; Snow thickness; Snow thickness from Snow Pit; Standard grain size grid plate; Surface; t; Temperature, ice/snow; The mixing ratio of CO2 (xCO2, ppmv) within the sea ice was monitored using in situ peeper gas samplers where xCO2 was determined by circulating the air within the system in a closed loop through a Continuous Automated CO2 Sampler (CACS) system equipped with a LI-820 NDIR gas analyzer (Li-COR Environmental; flow rate = 1 mL/min). The maximum peak height determined by the detector was used to generate sample xCO2. The CACS system was calibrated on-site against CO2 gas standards (1968 ppm and 958 ppm; PRAXAIR) at the start and end of the sampling program.; TIC; Upper limit of snow grain size sample height range; Upper limit of snow isotope sample height range; Upper limit of snow salinity sample height range; UTC
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Dataset
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