Nedashkovsky, A P; Khvedynich, S V; Petrovsky, T V (2009): (Table 1) Snow and ice thickness and layering at observation points of the North Pole 34 drifting station [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.726428, Supplement to: Nedashkovsky, AP et al. (2009): Alkalinity of sea ice in the high-latitudinal Arctic according to the surveys performed at North Pole Drifting Station 34 and characterization of the role of the Arctic ice in the CO2 exchange. Oceanology, 49(1), 55-63, https://doi.org/10.1134/S000143700901007X
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Abstract:
Variability of total alkalinity in sea ice of the high-latitudinal Arctic from November 2005 to May 2006 is considered. For the bulk of one- and two-year sea ice, alkalinity dependence on salinity is described as TA = k x Sal, where k is salinity/alkalinity ratio in under-ice water. The given relationship is valid within a wide range of salinity from 0.1 psu in desalinated fraction of two-year ice to 36 psu in snow on the young ice surface. Geochemically significant deviations from the relationship noted were observed exclusively in snow and the upper layer of one-year ice. In the upper layer of one-year ice, deficiency of alkalinity is observed ( delta TA ~= -0.07 mEq/kg, or -15%). In snow on the surface of the one-year ice, alkalinity excess is formed under desalination ( delta TA is as high as 1.3 mEq/kg, or 380%). Deviations registered are caused by possibility of carbonate precipitation in form of CaCO3 x 6H2O under seawater freezing. It is shown that ice formation and the following melting might cause losses of atmospheric CO2 of up to 3 x 10**12 gC/year.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 87.927251 * Median Longitude: 38.173465 * South-bound Latitude: 87.354722 * West-bound Longitude: 10.425000 * North-bound Latitude: 88.892222 * East-bound Longitude: 101.086667
Date/Time Start: 2006-02-05T00:00:00 * Date/Time End: 2006-12-05T00:00:00
Event(s):
SP-34-4 * Latitude: 88.127500 * Longitude: 94.918888 * Location: Arctic Ocean * Campaign: SP-34 * Basis: Ice drift station * Method/Device: Sea ice corer (SEAICEC)
SP-34-5 * Latitude: 87.952778 * Longitude: 101.086667 * Date/Time: 2006-06-02T00:00:00 * Location: Arctic Ocean * Campaign: SP-34 * Basis: Ice drift station * Method/Device: Sea ice corer (SEAICEC)
SP-34-6 * Latitude: 88.001389 * Longitude: 51.898055 * Date/Time: 2006-07-03T00:00:00 * Location: Arctic Ocean * Campaign: SP-34 * Basis: Ice drift station * Method/Device: Sea ice corer (SEAICEC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Sea ice thickness | EsEs | m | Nedashkovsky, A P | Sea ice observation | |
| 5 | Snow thickness | Snow thick | m | Nedashkovsky, A P | ||
| 6 | Thickness | Thick | mm | Nedashkovsky, A P | layer of meltwater from snow | |
| 7 | Number | No | Nedashkovsky, A P | of layers in ice including snow |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
76 data points