Opel, Thomas; Laepple, Thomas; Meyer, Hanno; Dereviagin, Alexander Yu; Wetterich, Sebastian (2017): (Table 1) Radiocarbon ages of organic remains in Oyogos Yar ice-wedge samples and corresponding δ¹⁸O values [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.873563, Supplement to: Opel, T et al. (2017): Northeast Siberian ice wedges confirm Arctic winter warming over the past two millennia. The Holocene, 8 pp, https://doi.org/10.1177/0959683617702229
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Abstract:
Arctic climate has experienced major changes over the past millennia that are not fully understood in terms of their controls and seasonality. Stable-data from ice wedges in permafrost provide unique information on past winter climate. Recently, an ice-wedge record from the Lena River Delta suggested for the first time that Siberian winter temperatures increased throughout the Holocene, contradicting most other Arctic paleoclimate reconstructions which are likely biased towards the summer. However, the representativeness of this single record and the spatial extent of its reconstructed winter warming signal is unclear. Here, we present a new winter temperature record based on paired stable oxygen (d18O) and radiocarbon age data spanning the last two millennia from the Oyogos Yar coast in northeast Siberia. The record confirms the long-term winter warming signal as well as the unprecedented temperature rise in recent decades. This confirmation demonstrates that winter warming over the last millennia is a coherent feature in the northeastern Siberian Arctic, supporting the hypothesis of an insolation-driven seasonal Holocene temperature evolution followed by a strong warming likely related to anthropogenic forcing.
Project(s):
Permafrost Research (Periglacial Dynamics) @ AWI (AWI_PerDyn)
Coverage:
Median Latitude: 72.682968 * Median Longitude: 143.484885 * South-bound Latitude: 72.681460 * West-bound Longitude: 143.475260 * North-bound Latitude: 72.683470 * East-bound Longitude: 143.513760
Date/Time Start: 2007-08-11T00:00:00 * Date/Time End: 2007-08-22T00:00:00
Event(s):
Oy7-04-IW2 * Latitude: 72.681460 * Longitude: 143.513760 * Date/Time: 2007-08-11T00:00:00 * Location: Oyogos Yar, East Siberia, Russia * Campaign: RU-Land_2007_Lena (Lena2007) * Basis: AWI Arctic Land Expedition * Method/Device: Sampling by hand (HAND)
Oy7-11-IW1 * Latitude: 72.683470 * Longitude: 143.475260 * Date/Time: 2007-08-22T00:00:00 * Location: Oyogos Yar, East Siberia, Russia * Campaign: RU-Land_2007_Lena (Lena2007) * Basis: AWI Arctic Land Expedition * Method/Device: Sampling by hand (HAND)
Oy7-11-IW7 * Latitude: 72.683470 * Longitude: 143.475260 * Date/Time: 2007-08-22T00:00:00 * Campaign: RU-Land_2007_Lena (Lena2007) * Basis: AWI Arctic Land Expedition * Method/Device: Sampling by hand (HAND)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Opel, Thomas | |||
| 2 | Date/Time of event | Date/Time | Opel, Thomas | |||
| 3 | Latitude of event | Latitude | Opel, Thomas | |||
| 4 | Longitude of event | Longitude | Opel, Thomas | |||
| 5 | Sample ID | Sample ID | Opel, Thomas | |||
| 6 | Sample, optional label/labor no | Lab no | Opel, Thomas | |||
| 7 | Age, dated | Age dated | ka BP | Opel, Thomas | Age, 14C AMS | BP (1950) |
| 8 | Age, dated standard deviation | Age dated std dev | ± | Opel, Thomas | Age, 14C AMS | |
| 9 | Age, comment | Comm | Opel, Thomas | |||
| 10 | Age | Age | a AD/CE | Opel, Thomas | Calibrated age midpoint of highest posterior density (hpd) | |
| 11 | Age, error | Age e | ± | Opel, Thomas | Range of highest posterior density (hpd) in years | |
| 12 | Probability | Prob | % | Opel, Thomas | ||
| 13 | δ18O, water | δ18O H2O | ‰ SMOW | Opel, Thomas | with respect to VSMOW |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
160 data points
Data
| 1 Event | 2 Date/Time | 3 Latitude | 4 Longitude | 5 Sample ID | 6 Lab no | 7 Age dated [ka BP] | 8 Age dated std dev [±] | 9 Comm | 10 Age [a AD/CE] | 11 Age e [±] | 12 Prob [%] | 13 δ18O H2O [‰ SMOW] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oy7-RIW | 2007-08-22 | 72.68347 | 143.47526 | RIW | 2003.5 | 3.5 | -20.7 | |||||
| Oy7-04-IW2 | 2007-08-11 | 72.68146 | 143.51376 | Oy7-04-205 | COL 3997 | 1.6070 | 0.049 | 451.0 | 112.0 | 95.0 | -25.5 | |
| Oy7-04-IW2 | 2007-08-11 | 72.68146 | 143.51376 | Oy7-04-242 | KIA 35630 | 0.5230 | 0.046 | 1417.0 | 31.0 | 66.6 | -25.9 | |
| Oy7-04-IW2 | 2007-08-11 | 72.68146 | 143.51376 | Oy7-04-247 | KIA 35631 | 3.5180 | 0.031 | excluded, not used for further analysis | -1838.0 | 86.5 | 95.0 | -22.8 |
| Oy7-04-IW2 | 2007-08-11 | 72.68146 | 143.51376 | Oy7-04-263 | KIA 35632 | 0.4120 | 0.030 | 1474.0 | 43.5 | 84.0 | -22.7 | |
| Oy7-04-IW2 | 2007-08-11 | 72.68146 | 143.51376 | Oy7-04-267 | KIA 35633 | 0.2580 | 0.051 | 1544.0 | 60.0 | 37.2 | -25.0 | |
| Oy7-04-IW2 | 2007-08-11 | 72.68146 | 143.51376 | Oy7-04-274 | KIA 35634 | 0.4880 | 0.058 | 1448.0 | 64.5 | 76.9 | -25.8 | |
| Oy7-04-IW2 | 2007-08-11 | 72.68146 | 143.51376 | Oy7-04-290 | KIA 35635 | 1.4790 | 0.106 | 547.0 | 171.0 | 91.6 | -25.9 | |
| Oy7-11-IW1 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-138 | KIA 35636 | 8.9590 | 0.043 | excluded, not used for further analysis | -8221.0 | 55.0 | 49.0 | -26.6 |
| Oy7-11-IW1 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-162 | KIA 35637 | 8.3000 | 0.043 | excluded, not used for further analysis | -7365.0 | 119.0 | 86.6 | -25.5 |
| Oy7-11-IW1 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-189 | KIA 35638 | 0.8570 | 0.047 | 1204.0 | 58.0 | 69.3 | -23.0 | |
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-719 | KIA 40385 | 1.8580 | 0.060 | 152.0 | 106.5 | 87.0 | -25.9 | |
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-723 | KIA 40386 | 1.8680 | 0.036 | 152.0 | 81.0 | 95.0 | -24.9 | |
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-740 | KIA 40387 | 1.0810 | 0.022 | 978.0 | 36.5 | 68.9 | -24.8 | |
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-747 | KIA 40388 | 1.0980 | 0.024 | 942.0 | 50.5 | 95.0 | -25.4 | |
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-796 | KIA 40390 | post-bomb age, F14C (fraction modern) = 1.2661 ± 0.005, calibrated with CALIBomb | 1981.0 | 1.0 | 84.0 | -21.9 | ||
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-820 | KIA 40391 | 0.2250 | 0.025 | 1661.0 | 19.0 | 43.6 | -24.4 | |
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-Hy27 | COL 1925 | 1.5790 | 0.043 | 482.0 | 86.5 | 95.0 | -23.9 | |
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-Hy31 | KIA 40393 | 14.2000 | 0.071 | excluded, not used for further analysis | -15342.0 | 227.5 | 95.0 | -25.3 |
| Oy7-11-IW7 | 2007-08-22 | 72.68347 | 143.47526 | Oy7-11-Hy40 | KIA 40394 | 6.6400 | 0.051 | excluded, not used for further analysis | -5560.0 | 73.5 | 95.0 | -25.3 |