Zobrazeno 1 - 10
of 88
pro vyhledávání: '"J. Segschneider"'
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 20, Pp n/a-n/a (2023)
Abstract The tectonic closure of the Central American Seaway (CAS) during the mid‐Miocene to mid‐Pliocene (∼16–3 Ma BP) is thought of as a key interval for the onset of the present‐day tropical Pacific oxygen minimum zone (OMZ). In this stu
Externí odkaz:
https://doaj.org/article/c02eb70ce660448088cecf86c956e1ef
Autor:
T. Rixen, G. Cowie, B. Gaye, J. Goes, H. do Rosário Gomes, R. R. Hood, Z. Lachkar, H. Schmidt, J. Segschneider, A. Singh
Publikováno v:
Biogeosciences, Vol 17, Pp 6051-6080 (2020)
Decreasing concentrations of dissolved oxygen in the ocean are considered one of the main threats to marine ecosystems as they jeopardize the growth of higher organisms. They also alter the marine nitrogen cycle, which is strongly bound to the carbon
Externí odkaz:
https://doaj.org/article/18a1e304cb77486e92443244eead9322
Publikováno v:
Geoscientific Model Development, Vol 12, Pp 1869-1883 (2019)
Despite intense efforts, the mechanisms that drive glacial–interglacial changes in atmospheric pCO2 are not fully understood. Here, we aim at quantifying the potential contribution of aeolian dust deposition changes to the atmospheric pCO2 drawdown
Externí odkaz:
https://doaj.org/article/3a31ec7fb5a4420f985dd1aa1d87ed99
Publikováno v:
Biogeosciences, Vol 15, Pp 3243-3266 (2018)
Climate and marine biogeochemistry changes over the Holocene are investigated based on transient global climate and biogeochemistry model simulations over the last 9500 years. The simulations are forced by accelerated and non-accelerated orbital p
Externí odkaz:
https://doaj.org/article/bbd9c2cc8dc0451582d76d9a0d1aeb70
Autor:
B. Gaye, A. Böll, J. Segschneider, N. Burdanowitz, K.-C. Emeis, V. Ramaswamy, N. Lahajnar, A. Lückge, T. Rixen
Publikováno v:
Biogeosciences, Vol 15, Pp 507-527 (2018)
At present, the Arabian Sea has a permanent oxygen minimum zone (OMZ) at water depths between about 100 and 1200 m. Active denitrification in the upper part of the OMZ is recorded by enhanced δ15N values in the sediments. Sediment cores show a δ
Externí odkaz:
https://doaj.org/article/74be55152ef44d4a857cd7aa4ec100a8
Autor:
R. Séférian, M. Gehlen, L. Bopp, L. Resplandy, J. C. Orr, O. Marti, J. P. Dunne, J. R. Christian, S. C. Doney, T. Ilyina, K. Lindsay, P. R. Halloran, C. Heinze, J. Segschneider, J. Tjiputra, O. Aumont, A. Romanou
Publikováno v:
Geoscientific Model Development, Vol 9, Iss 5, Pp 1827-1851 (2016)
During the fifth phase of the Coupled Model Intercomparison Project (CMIP5) substantial efforts were made to systematically assess the skill of Earth system models. One goal was to check how realistically representative marine biogeochemical tracer d
Externí odkaz:
https://doaj.org/article/5a34d202fe714416a534ffc29e187415
Autor:
C. Le Quéré, R. Moriarty, R. M. Andrew, G. P. Peters, P. Ciais, P. Friedlingstein, S. D. Jones, S. Sitch, P. Tans, A. Arneth, T. A. Boden, L. Bopp, Y. Bozec, J. G. Canadell, L. P. Chini, F. Chevallier, C. E. Cosca, I. Harris, M. Hoppema, R. A. Houghton, J. I. House, A. K. Jain, T. Johannessen, E. Kato, R. F. Keeling, V. Kitidis, K. Klein Goldewijk, C. Koven, C. S. Landa, P. Landschützer, A. Lenton, I. D. Lima, G. Marland, J. T. Mathis, N. Metzl, Y. Nojiri, A. Olsen, T. Ono, S. Peng, W. Peters, B. Pfeil, B. Poulter, M. R. Raupach, P. Regnier, C. Rödenbeck, S. Saito, J. E. Salisbury, U. Schuster, J. Schwinger, R. Séférian, J. Segschneider, T. Steinhoff, B. D. Stocker, A. J. Sutton, T. Takahashi, B. Tilbrook, G. R. van der Werf, N. Viovy, Y.-P. Wang, R. Wanninkhof, A. Wiltshire, N. Zeng
Publikováno v:
Earth System Science Data, Vol 7, Iss 1, Pp 47-85 (2015)
Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere is important to better understand the global carbon cycle, support the development of climate policies
Externí odkaz:
https://doaj.org/article/9782ff86ae4943f5a04bb5542de00853
Autor:
M. Gehlen, R. Séférian, D. O. B. Jones, T. Roy, R. Roth, J. Barry, L. Bopp, S. C. Doney, J. P. Dunne, C. Heinze, F. Joos, J. C. Orr, L. Resplandy, J. Segschneider, J. Tjiputra
Publikováno v:
Biogeosciences, Vol 11, Iss 23, Pp 6955-6967 (2014)
This study aims to evaluate the potential for impacts of ocean acidification on North Atlantic deep-sea ecosystems in response to IPCC AR5 Representative Concentration Pathways (RCPs). Deep-sea biota is likely highly vulnerable to changes in seawater
Externí odkaz:
https://doaj.org/article/2025322b4d0a451eae1a3575baf5e2ec
Publikováno v:
Geoscientific Model Development, Vol 7, Iss 5, Pp 2393-2408 (2014)
The marine CaCO3 cycle is an important component of the oceanic carbon system and directly affects the cycling of natural and the uptake of anthropogenic carbon. In numerical models of the marine carbon cycle, the CaCO3 cycle component is often ev
Externí odkaz:
https://doaj.org/article/f264abdbaddd455099a8709db49cbae1
Autor:
C. Le Quéré, G. P. Peters, R. J. Andres, R. M. Andrew, T. A. Boden, P. Ciais, P. Friedlingstein, R. A. Houghton, G. Marland, R. Moriarty, S. Sitch, P. Tans, A. Arneth, A. Arvanitis, D. C. E. Bakker, L. Bopp, J. G. Canadell, L. P. Chini, S. C. Doney, A. Harper, I. Harris, J. I. House, A. K. Jain, S. D. Jones, E. Kato, R. F. Keeling, K. Klein Goldewijk, A. Körtzinger, C. Koven, N. Lefèvre, F. Maignan, A. Omar, T. Ono, G.-H. Park, B. Pfeil, B. Poulter, M. R. Raupach, P. Regnier, C. Rödenbeck, S. Saito, J. Schwinger, J. Segschneider, B. D. Stocker, T. Takahashi, B. Tilbrook, S. van Heuven, N. Viovy, R. Wanninkhof, A. Wiltshire, S. Zaehle
Publikováno v:
Earth System Science Data, Vol 6, Iss 1, Pp 235-263 (2014)
Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere is important to better understand the global carbon cycle, support the development of climate policies
Externí odkaz:
https://doaj.org/article/c890a360fa254740bd2255e988dacc86