Lange, Benjamin Allen; Salganik, Evgenii; Macfarlane, Amy R; Schneebeli, Martin; Høyland, Knut Vilhelm; Gardner, Jessie; Müller, Oliver; Granskog, Mats A (2022): Ridge ice oxygen and hydrogen isotope data MOSAiC Leg 4 (PS122/4) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.943746
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Abstract:
Oxygen (dO18) and hydrogen (dH) isotope ratio data from sea ice samples taken during MOSAiC leg 4 (PS122/4). Sea ice samples were taken from Jaride and Alli's Ridge. Sea ice cores were extracted f 139 rom the ridges using a 9 cm inner diameter ice corer (Kovacs Enterprise Mark II coring system) powered by a cordless electric drill. Salinity/isotope ice cores were stored in sterile U-Lines bags (sections < 1 m), immediately placed in Styrofoam boxes and transported back to the ship within 2 hours of sampling. Ice cores were stored in a -20°C walk-in freezer until processing. The ice cores were cut into ~5 cm sections using a stainless steel, electric butcher band saw. To ensure we captured potential transition zones within the sea ice (i.e., rapid transitions in salinity), we only cut to the top or bottom of natural breaks in the ice cores (i.e., some sections were thicker or thinner than 5 cm but all in the range of 2-7 cm). The samples were placed in plastic cups with lids and melted at room temperature. Once completely melted, ~20 ml sub-samples were poured into 20 ml glass or plastic vials with lids and sealed with parafilm tape for isotope analyses. These samples were stored at +4°C. After the sub-samples were taken, bulk salinity was measured on the remaining water sample using a calibrated YSI 30 conductivity meter (practical salinity scale, unitless).
The stable oxygen isotopic compositions of the melted ice samples (δ18O) were determined in the central laboratory of the Swiss Federal Institute for Forest, Snow and Landscape, Birmensdorf, Switzerland with an Isotopic Water Analyzer IWA-45-ER (ABB - Los Gatos Research Inc., US). Measurement uncertainty for δ18O is ±1‰, the precision ± 0.5‰. All samples were measured in duplicate and averaged. 169 The quality control was conducted with three standards for δ18O at 0.00‰, -12.34‰ and -55.50‰ and are presented as per mil difference relative to VSMOW (‰, Vienna Standard Mean Ocean Water).
Related to:
Lange, Benjamin Allen; Salganik, Evgenii; Macfarlane, Amy R; Schneebeli, Martin; Høyland, Knut Vilhelm; Gardner, Jessie; Müller, Oliver; Divine, Dmitry V; Kohlbach, Doreen; Katlein, Christian; Granskog, Mats A (2023): Snowmelt contribution to Arctic first-year ice ridge mass balance and rapid consolidation during summer melt. Elementa - Science of the Anthropocene, 11(1), 00037, https://doi.org/10.1525/elementa.2022.00037
Smith, Madison M; von Albedyll, Luisa; Raphael, Ian; Lange, Benjamin Allen; Matero, Ilkka; Salganik, Evgenii; Webster, Melinda; Granskog, Mats A; Fong, Allison A; Lei, Ruibo; Light, Bonnie (2022): Quantifying false bottoms and under-ice meltwater layers beneath Arctic summer sea ice with fine-scale observations. Elementa - Science of the Anthropocene, 10(1), 000116, https://doi.org/10.1525/elementa.2021.000116
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
The Research Council of Norway (RCN), grant/award no. 280292: Ridges - Safe HAVens for ice-associated Flora and Fauna in a Seasonally ice-covered Arctic OCean
Coverage:
Median Latitude: 80.840834 * Median Longitude: 0.315984 * South-bound Latitude: 79.359890 * West-bound Longitude: -2.688590 * North-bound Latitude: 81.504020 * East-bound Longitude: 2.357850
Date/Time Start: 2020-07-10T00:00:00 * Date/Time End: 2020-07-28T00:00:00
Minimum DEPTH, ice/snow: 0.000 m * Maximum DEPTH, ice/snow: 6.380 m
Event(s):
PS122/4_46-178 * Latitude: 81.520493 * Longitude: 2.409462 * Date/Time: 2020-07-10T08:15:00 * Elevation: -1121.7 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: "Ridge Ice coring gap layers at Jaridge (3 ECO cores and 1 times Sal/O18). Connected with 7 cm Density core; Ice coring gap layers at Jaridge (3 ECO cores and 1 times Sal/O18). Connected with 7 cm Density core (taken in the afternoon)."
PS122/4_47-157 * Latitude: 81.304717 * Longitude: 0.336100 * Date/Time: 2020-07-15T09:00:00 * Elevation: -2326.0 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: "Alli's ridge coring for Temp, salinity and O18 from one 9 cm core. Adjacent to 2 density cores. One on either side (one side was 3 m the other side was 6 m); Alli's ridge coring for Temp, salinity and O18 from one 9 cm core. Adjacent to 2 density cores (PS122/4_47-157 SI_corer_9cm). One on either side (one side was 3 m the other side was 6 m)."
PS122/4_47-199 * Latitude: 81.056303 * Longitude: 0.436284 * Date/Time: 2020-07-18T10:00:00 * Elevation: -2365.0 m * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/4 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Ice corer (IC) * Comment: Jaridge ice core sampling. 3x ECO cores
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Lange, Benjamin Allen | |||
| 2 | Comment | Comment | Lange, Benjamin Allen | |||
| 3 | DATE/TIME | Date/Time | Lange, Benjamin Allen | Geocode | ||
| 4 | LATITUDE | Latitude | Lange, Benjamin Allen | Geocode – coordinates of the Central Observatory at the time of sampling | ||
| 5 | LONGITUDE | Longitude | Lange, Benjamin Allen | Geocode – coordinates of the Central Observatory at the time of sampling | ||
| 6 | DEPTH, ice/snow | Depth ice/snow | m | Lange, Benjamin Allen | Geocode – the top of the ice section (from the ice surface) | |
| 7 | DEPTH, ice/snow | Depth ice/snow | m | Lange, Benjamin Allen | Geocode – the bottom of the ice section (from the ice surface) | |
| 8 | Distance, from water level | Dist WL | m | Lange, Benjamin Allen | ||
| 9 | Salinity | Sal | Lange, Benjamin Allen | PSU | ||
| 10 | δ Deuterium, water | δD H2O | ‰ SMOW | Lange, Benjamin Allen | Isotopic Water Analyzer IWA-45-ER (ABB - Los Gatos Research Inc., US), Swiss Federal Institute for Forest, Snow and Landscape, Birmensdorf | ppt, vs. VSMOW |
| 11 | δ18O, water | δ18O H2O | ‰ SMOW | Lange, Benjamin Allen | Isotopic Water Analyzer IWA-45-ER (ABB - Los Gatos Research Inc., US), Swiss Federal Institute for Forest, Snow and Landscape, Birmensdorf | ppt, vs. VSMOW |
| 12 | Sample ID | Sample ID | Lange, Benjamin Allen | O18_vial_ID | ||
| 13 | Location | Location | Lange, Benjamin Allen | name of the unique ridge sample (Jaridge or Alli's Ridge) during leg 4 MOSAiC | ||
| 14 | Ice thickness | Ice thick | m | Lange, Benjamin Allen | top of ice to the bottom of the ice | |
| 15 | Ice draft | Draft | m | Lange, Benjamin Allen | distance from water level to bottom of the ice | |
| 16 | Sea ice freeboard | Sea ice freeboard | m | Lange, Benjamin Allen | distance from water level to the surface of the sea ice | |
| 17 | Snow height | Snow h | m | Lange, Benjamin Allen |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
4951 data points
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