(Table 1) Snow and ice thickness and layering at observation points of the North Pole 34 drifting station
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2009
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| _version_ | 1867169966767210496 |
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| author | Nedashkovsky, A P Khvedynich, S V Petrovsky, T V |
| author_facet | Nedashkovsky, A P Khvedynich, S V Petrovsky, T V |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_726428 |
| institution | PANGAEA |
| language | en |
| publishDate | 2009 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Snow and ice thickness and layering at observation points of the North Pole 34 drifting station Nedashkovsky, A P Khvedynich, S V Petrovsky, T V Archive of Ocean Data; ARCOD; Arctic Ocean; Event label; Ice drift station; Latitude of event; Longitude of event; Number; SEAICEC; Sea ice corer; Sea ice observation; Sea ice thickness; Snow thickness; SP-34; SP-34-10; SP-34-11; SP-34-12; SP-34-13; SP-34-14; SP-34-15; SP-34-16; SP-34-17; SP-34-18; SP-34-19; SP-34-20; SP-34-21; SP-34-22; SP-34-4; SP-34-5; SP-34-6; SP-34-7; SP-34-8; SP-34-9; Thickness 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. |
| title | (Table 1) Snow and ice thickness and layering at observation points of the North Pole 34 drifting station |
| topic | Archive of Ocean Data; ARCOD; Arctic Ocean; Event label; Ice drift station; Latitude of event; Longitude of event; Number; SEAICEC; Sea ice corer; Sea ice observation; Sea ice thickness; Snow thickness; SP-34; SP-34-10; SP-34-11; SP-34-12; SP-34-13; SP-34-14; SP-34-15; SP-34-16; SP-34-17; SP-34-18; SP-34-19; SP-34-20; SP-34-21; SP-34-22; SP-34-4; SP-34-5; SP-34-6; SP-34-7; SP-34-8; SP-34-9; Thickness |
| url | https://doi.org/10.1594/PANGAEA.726428 |