Zobrazeno 1 - 10
of 1 833
pro vyhledávání: '"C. Pearce"'
Autor:
J. Davies, K. Fahl, M. Moros, A. Carter-Champion, H. Detlef, R. Stein, C. Pearce, M.-S. Seidenkrantz
Publikováno v:
The Cryosphere, Vol 18, Pp 3415-3431 (2024)
This study reconstructs recent changes (1880–2017) in sea-ice conditions, using biomarkers (IP25 and phytoplankton sterols) from three sediment cores located in a transect across Belgica Trough, on the Northeast Greenland continental shelf. These r
Externí odkaz:
https://doaj.org/article/0a354532da9f45799e1a244299f8154d
Publikováno v:
Geochronology, Vol 5, Pp 451-465 (2023)
Knowledge of the marine reservoir age is fundamental for creating reliable chronologies of marine sediment archives based on radiocarbon dating. This age difference between the 14C age of a marine sample and that of its contemporaneous atmosphere is
Externí odkaz:
https://doaj.org/article/c36de6078dd649ad9cd128f5ebfe80db
Publikováno v:
Geochronology, Vol 5, Pp 229-240 (2023)
Radiocarbon dating marine sediments is complicated by the strongly heterogeneous age of ocean waters. Tephrochronology provides a well-established method to constrain the age of local radiocarbon reservoirs and more accurately calibrate dates. Numero
Externí odkaz:
https://doaj.org/article/47dde19f9c10473b91599be4a211f2b2
Publikováno v:
Climate of the Past, Vol 18, Pp 103-127 (2022)
The Northeast Greenland shelf is highly sensitive to climate and ocean variability because it is swept by the East Greenland Current, which, through the western Fram Strait, forms the main pathway of export of sea ice and cold water masses from the A
Externí odkaz:
https://doaj.org/article/09c1be35208343a0a46337afb8ea09df
Autor:
H. Detlef, B. Reilly, A. Jennings, M. Mørk Jensen, M. O'Regan, M. Glasius, J. Olsen, M. Jakobsson, C. Pearce
Publikováno v:
The Cryosphere, Vol 15, Pp 4357-4380 (2021)
The Petermann 2015 expedition to Petermann Fjord and adjacent Hall Basin recovered a transect of cores, extending from Nares Strait to underneath the 48 km long ice tongue of Petermann glacier, offering a unique opportunity to study ice–ocean–sea
Externí odkaz:
https://doaj.org/article/e681b61440e54dc997923a993cf1942b
Autor:
M. O'Regan, T. M. Cronin, B. Reilly, A. K. O. Alstrup, L. Gemery, A. Golub, L. A. Mayer, M. Morlighem, M. Moros, O. L. Munk, J. Nilsson, C. Pearce, H. Detlef, C. Stranne, F. Vermassen, G. West, M. Jakobsson
Publikováno v:
The Cryosphere, Vol 15, Pp 4073-4097 (2021)
The northern sector of the Greenland Ice Sheet is considered to be particularly susceptible to ice mass loss arising from increased glacier discharge in the coming decades. However, the past extent and dynamics of outlet glaciers in this region, and
Externí odkaz:
https://doaj.org/article/e98f3f11ee3d4ebaba81b431a57608c7
Publikováno v:
Climate of the Past, Vol 16, Pp 1075-1095 (2020)
Baffin Bay is a semi-enclosed basin connecting the Arctic Ocean and the western North Atlantic, thus making out a significant pathway for heat exchange. Here we reconstruct the alternating advection of relatively warmer and saline Atlantic waters ver
Externí odkaz:
https://doaj.org/article/5d369826332e484a81c3582eb81b36f0
Autor:
L. Gemery, T. M. Cronin, R. K. Poirier, C. Pearce, N. Barrientos, M. O'Regan, C. Johansson, A. Koshurnikov, M. Jakobsson
Publikováno v:
Climate of the Past, Vol 13, Pp 1473-1489 (2017)
Late Quaternary paleoceanographic changes at the Lomonosov Ridge, central Arctic Ocean, were reconstructed from a multicore and gravity core recovered during the 2014 SWERUS-C3 Expedition. Ostracode assemblages dated by accelerator mass spectromet
Externí odkaz:
https://doaj.org/article/d3e4541dcb584f69b1da3accf053a975
Autor:
T. Tesi, M. C. Geibel, C. Pearce, E. Panova, J. E. Vonk, E. Karlsson, J. A. Salvado, M. Kruså, L. Bröder, C. Humborg, I. Semiletov, Ö. Gustafsson
Publikováno v:
Ocean Science, Vol 13, Pp 735-748 (2017)
Recent Arctic studies suggest that sea ice decline and permafrost thawing will affect phytoplankton dynamics and stimulate heterotrophic communities. However, in what way the plankton composition will change as the warming proceeds remains elusive
Externí odkaz:
https://doaj.org/article/d2559894bbc74743bab29c3aa04adef2
Autor:
K. Keskitalo, T. Tesi, L. Bröder, A. Andersson, C. Pearce, M. Sköld, I. P. Semiletov, O. V. Dudarev, Ö. Gustafsson
Publikováno v:
Climate of the Past, Vol 13, Pp 1213-1226 (2017)
Thawing of permafrost carbon (PF-C) due to climate warming can remobilise considerable amounts of terrestrial carbon from its long-term storage to the marine environment. PF-C can be then be buried in sediments or remineralised to CO2 with implica
Externí odkaz:
https://doaj.org/article/974c82e7c13b48dc9f3a5a26f894bbd1