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  • PANGAEA  (2)
  • Springer  (1)
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Keywords
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Years
  • 1
    facet.materialart.
    Unknown
    Hydrographical, biogeochemical and biooptical water properties in the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019 (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-27
    Description: This dataset contains hydrographical, biogeochemical and bioptical data from four field campaigns to the Mackenzie Delta region from spring to fall in 2019. Focus of the sampling was put on surface waters to compare with satellite imagery and capture the signal of the Mackenzie River water throughout the coastal waters of the Beaufort Sea. The water samples for the biogeochemical data were taken using pumps or niskin bottles. The repeated sampling focused on the two main outflow regions of the Mackenzie River: Shallow Bay and Mackenzie Bay in the west and Kugmallit Bay in the east as well as on the river channels across the delta. Most sampling locations were revisited four times. Sampling during different seasons was extremely challenging in this region due to uncertain ice cover and broken ice fields during and after ice break-up. Additionally, very shallow water (〈5 m) mandates the use of small draught boats, which was challenging under frequently harsh weather conditions. To tackle these challenges, various sampling platforms were used such as small boats, trucks, ski-doos and hovering helicopter. The campaigns were carried out under the umbrella of the EU Horizon 2020 project Nunataryuk.
    Keywords: biogeochemistry; Biooptics; Coastal waters; hydrographic data; Mackenzie; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation
    Type: Dataset
    Format: application/zip, 13 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Suspended particulate matter (SPM), Total particulate carbon (TPC) and Total particulate nitrogen (TPN) concentrations in the surface water of the Mackenzie Delta Region during 4 expeditions from spring to fall in 2019 (2021)
    PANGAEA
    Details
    Publication Date: 2024-04-27
    Description: Material for the determination of suspended particulate matter (SPM), total particulate carbon (TPC) and total particulate nitrogen (TPN) was obtained by filtering 300-700 mL water samples on pre-weighed, precombusted (450°C for 〉5 hours) 47mm Whatmann GF/F (0.7 µm) filters. The filters were dried overnight at 60°C and vacuum-sealed for storage in petri dishes kept at room temperature until analysis. SPM was calculated as the difference in dry weight between individually-marked filters before and after filtration (Doxaran et al., 2012; doi:10.5194/bg-9-3213-2012). Concentrations of TPC and TPN were determined using a Carbon Hydrogen Nitrogen (CHN) analyzer (Perkin Elmer) following methods described in Doxaran et al. (2012; doi:10.5194/bg-9-3213-2012).
    Keywords: 1_STN01; 1_STN020; 1_STN040; 1_STN0a; 1_STN0b; 1_STN140alt; 1_STN150alt; 1_STN340alt; 1_STN350; 1_STN360; 1_STN370alt; 1_STN380alt; 1_STN540alt; 1_STN550; 1_STN740; 1_STN810; 1_STN830; 1_STN840; 1_STN850; 1_STN860; 1_STN870; 2_STN030; 2_STN040; 2_STN1030; 2_STN1040; 2_STN1050; 2_STN1060; 2_STN110; 2_STN120; 2_STN140alt; 2_STN150alt; 2_STN310; 2_STN320; 2_STN330; 2_STN340alt; 2_STN350; 2_STN360; 2_STN370; 2_STN380alt_2; 2_STN420; 2_STN430; 2_STN450; 2_STN530; 2_STN540alt; 2_STN550; 2_STN565; 2_STN620; 2_STN630; 2_STN740; 2_STN800; 2_STN810; 2_STN820; 2_STN830; 2_STN840; 2_STN850; 2_STN860; 2_STN870; 2_STN999; 2_STNxxx; 2_XX2; 2_XX3; 3_STN010; 3_STN020; 3_STN030; 3_STN040; 3_STN1030; 3_STN1040; 3_STN1050; 3_STN1060; 3_STN125; 3_STN130; 3_STN130_5m; 3_STN135; 3_STN140alt; 3_STN150alt; 3_STN330; 3_STN340alt; 3_STN350; 3_STN360; 3_STN370alt; 3_STN380; 3_STN740; 3_STN800; 3_STN810; 3_STN820; 3_STN830; 3_STN840; 3_STN850; 3_STN860; 3_STN870; 3_STNR01; 3_STNR02; 3_STNR02_5m; 3_STNR03; 3_STNR04; 3_STNR05; 3_STNR06; 3_STNR07; 3_STNR08; 3_STNR09; 3_STNR09_20m; 3_STNR10; 3_STNR11; 3_STNR12; 3_STNR13; 3_STNxxx; 4_STN010; 4_STN020; 4_STN030; 4_STN040; 4_STN1030; 4_STN1040; 4_STN1050; 4_STN120; 4_STN125; 4_STN130; 4_STN135; 4_STN140alt; 4_STN140alt_2; 4_STN150alt; 4_STN330; 4_STN340alt; 4_STN350; 4_STN360; 4_STN370; 4_STN380alt; 4_STN740; 4_STN800; 4_STN810; 4_STN820; 4_STN830; 4_STN840; 4_STN840_2; 4_STN850; 4_STN860; 4_STN870; 4_STNR01; 4_STNR03; 4_STNR04; 4_STNR05; 4_STNR08; 4_STNR09; 4_STNR12; 4_STNXX4; 4_STNXX4_2; biogeochemistry; Biooptics; Carbon, total, particulate; Carbon Hydrogen Nitrogen (CHN) analyzer (Perkin Elmer); Coastal waters; Cruise/expedition; DATE/TIME; DEPTH, water; Derived from dry filter weights per volume; Event label; hydrographic data; LATITUDE; LONGITUDE; Mackenzie; Mackenzie Delta, Canada; MULT; Multiple investigations; Nitrogen, total, particulate; NUNATARYUK; NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation; NunaWP4Mackenzie19_1_STN01; NunaWP4Mackenzie19_1_STN020; NunaWP4Mackenzie19_1_STN040; NunaWP4Mackenzie19_1_STN0a; NunaWP4Mackenzie19_1_STN0b; NunaWP4Mackenzie19_1_STN140alt; NunaWP4Mackenzie19_1_STN150alt; NunaWP4Mackenzie19_1_STN340alt; NunaWP4Mackenzie19_1_STN350; NunaWP4Mackenzie19_1_STN360; NunaWP4Mackenzie19_1_STN370alt; NunaWP4Mackenzie19_1_STN380alt; NunaWP4Mackenzie19_1_STN540alt; NunaWP4Mackenzie19_1_STN550; NunaWP4Mackenzie19_1_STN740; NunaWP4Mackenzie19_1_STN810; NunaWP4Mackenzie19_1_STN830; NunaWP4Mackenzie19_1_STN840; NunaWP4Mackenzie19_1_STN850; NunaWP4Mackenzie19_1_STN860; NunaWP4Mackenzie19_1_STN870; NunaWP4Mackenzie19_2_STN030; NunaWP4Mackenzie19_2_STN040; NunaWP4Mackenzie19_2_STN1030; NunaWP4Mackenzie19_2_STN1040; NunaWP4Mackenzie19_2_STN1050; NunaWP4Mackenzie19_2_STN1060; NunaWP4Mackenzie19_2_STN110; NunaWP4Mackenzie19_2_STN120; NunaWP4Mackenzie19_2_STN140alt; NunaWP4Mackenzie19_2_STN150alt; NunaWP4Mackenzie19_2_STN310; NunaWP4Mackenzie19_2_STN320; NunaWP4Mackenzie19_2_STN330; NunaWP4Mackenzie19_2_STN340alt; NunaWP4Mackenzie19_2_STN350; NunaWP4Mackenzie19_2_STN360; NunaWP4Mackenzie19_2_STN370; NunaWP4Mackenzie19_2_STN380alt_2; NunaWP4Mackenzie19_2_STN420; NunaWP4Mackenzie19_2_STN430; NunaWP4Mackenzie19_2_STN450; NunaWP4Mackenzie19_2_STN530; NunaWP4Mackenzie19_2_STN540alt; NunaWP4Mackenzie19_2_STN550; NunaWP4Mackenzie19_2_STN565; NunaWP4Mackenzie19_2_STN620; NunaWP4Mackenzie19_2_STN630; NunaWP4Mackenzie19_2_STN740; NunaWP4Mackenzie19_2_STN800; NunaWP4Mackenzie19_2_STN810; NunaWP4Mackenzie19_2_STN820; NunaWP4Mackenzie19_2_STN830; NunaWP4Mackenzie19_2_STN840; NunaWP4Mackenzie19_2_STN850; NunaWP4Mackenzie19_2_STN860; NunaWP4Mackenzie19_2_STN870; NunaWP4Mackenzie19_2_STN999; NunaWP4Mackenzie19_2_STNxxx; NunaWP4Mackenzie19_2_XX2; NunaWP4Mackenzie19_2_XX3; NunaWP4Mackenzie19_3_STN010; NunaWP4Mackenzie19_3_STN020; NunaWP4Mackenzie19_3_STN030; NunaWP4Mackenzie19_3_STN040; NunaWP4Mackenzie19_3_STN1030; NunaWP4Mackenzie19_3_STN1040; NunaWP4Mackenzie19_3_STN1050; NunaWP4Mackenzie19_3_STN1060; NunaWP4Mackenzie19_3_STN125; NunaWP4Mackenzie19_3_STN130; NunaWP4Mackenzie19_3_STN130_5m; NunaWP4Mackenzie19_3_STN135; NunaWP4Mackenzie19_3_STN140alt; NunaWP4Mackenzie19_3_STN150alt; NunaWP4Mackenzie19_3_STN330; NunaWP4Mackenzie19_3_STN340alt; NunaWP4Mackenzie19_3_STN350; NunaWP4Mackenzie19_3_STN360; NunaWP4Mackenzie19_3_STN370alt; NunaWP4Mackenzie19_3_STN380; NunaWP4Mackenzie19_3_STN740; NunaWP4Mackenzie19_3_STN800; NunaWP4Mackenzie19_3_STN810; NunaWP4Mackenzie19_3_STN820; NunaWP4Mackenzie19_3_STN830; NunaWP4Mackenzie19_3_STN840; NunaWP4Mackenzie19_3_STN850; NunaWP4Mackenzie19_3_STN860; NunaWP4Mackenzie19_3_STN870; NunaWP4Mackenzie19_3_STNR01; NunaWP4Mackenzie19_3_STNR02; NunaWP4Mackenzie19_3_STNR02_5m; NunaWP4Mackenzie19_3_STNR03; NunaWP4Mackenzie19_3_STNR04; NunaWP4Mackenzie19_3_STNR05; NunaWP4Mackenzie19_3_STNR06; NunaWP4Mackenzie19_3_STNR07; NunaWP4Mackenzie19_3_STNR08; NunaWP4Mackenzie19_3_STNR09; NunaWP4Mackenzie19_3_STNR09_20m; NunaWP4Mackenzie19_3_STNR10; NunaWP4Mackenzie19_3_STNR11; NunaWP4Mackenzie19_3_STNR12; NunaWP4Mackenzie19_3_STNR13; NunaWP4Mackenzie19_3_STNxxx; NunaWP4Mackenzie19_4_STN010; NunaWP4Mackenzie19_4_STN020; NunaWP4Mackenzie19_4_STN030; NunaWP4Mackenzie19_4_STN040; NunaWP4Mackenzie19_4_STN1030; NunaWP4Mackenzie19_4_STN1040; NunaWP4Mackenzie19_4_STN1050; NunaWP4Mackenzie19_4_STN120; NunaWP4Mackenzie19_4_STN125; NunaWP4Mackenzie19_4_STN130; NunaWP4Mackenzie19_4_STN135; NunaWP4Mackenzie19_4_STN140alt; NunaWP4Mackenzie19_4_STN140alt_2; NunaWP4Mackenzie19_4_STN150alt; NunaWP4Mackenzie19_4_STN330; NunaWP4Mackenzie19_4_STN340alt; NunaWP4Mackenzie19_4_STN350; NunaWP4Mackenzie19_4_STN360; NunaWP4Mackenzie19_4_STN370; NunaWP4Mackenzie19_4_STN380alt; NunaWP4Mackenzie19_4_STN740; NunaWP4Mackenzie19_4_STN800; NunaWP4Mackenzie19_4_STN810; NunaWP4Mackenzie19_4_STN820; NunaWP4Mackenzie19_4_STN830; NunaWP4Mackenzie19_4_STN840; NunaWP4Mackenzie19_4_STN840_2; NunaWP4Mackenzie19_4_STN850; NunaWP4Mackenzie19_4_STN860; NunaWP4Mackenzie19_4_STN870; NunaWP4Mackenzie19_4_STNR01; NunaWP4Mackenzie19_4_STNR03; NunaWP4Mackenzie19_4_STNR04; NunaWP4Mackenzie19_4_STNR05; NunaWP4Mackenzie19_4_STNR08; NunaWP4Mackenzie19_4_STNR09; NunaWP4Mackenzie19_4_STNR12; NunaWP4Mackenzie19_4_STNXX4; NunaWP4Mackenzie19_4_STNXX4_2; Station label; Suspended particulate matter
    Type: Dataset
    Format: text/tab-separated-values, 715 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Ballasting by cryogenic gypsum enhances carbon export in a Phaeocystis under-ice bloom (2018)
    Springer
    In:  EPIC3Scientific Reports, Springer, 8(7703)
    Details
    Publication Date: 2019-02-14
    Description: Mineral ballasting enhances carbon export from the surface to the deep ocean; however, little is known about the role of this process in the ice-covered Arctic Ocean. Here, we propose gypsum ballasting as a new mechanism that likely facilitated enhanced vertical carbon export from an under-ice phytoplankton bloom dominated by the haptophyte Phaeocystis. In the spring 2015 abundant gypsum crystals embedded in Phaeocystis aggregates were collected throughout the water column and on the sea floor at a depth below 2 km. Model predictions supported by isotopic signatures indicate that 2.7 g m−2 gypsum crystals were formed in sea ice at temperatures below −6.5°C and released into the water column during sea ice melting. Our finding indicates that sea ice derived (cryogenic) gypsum is stable enough to survive export to the deep ocean and serves as an effective ballast mineral. Our findings also suggest a potentially important and previously unknown role of Phaeocystis in deep carbon export due to cryogenic gypsum ballasting. The rapidly changing Arctic sea ice regime might favour this gypsum gravity chute with potential consequences for carbon export and food partitioning between pelagic and benthic ecosystems.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Location Call Number Limitation Availability
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    PAPER (OA)
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