Zobrazeno 1 - 10
of 75
pro vyhledávání: '"I. Stemmler"'
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 9157-9176 (2022)
In the era of exascale computing, machines with unprecedented computing power are available. Making efficient use of these massively parallel machines, with millions of cores, presents a new challenge. Multi-level and multi-dimensional parallelism wi
Externí odkaz:
https://doaj.org/article/35debf83c0e6422c90fa16f7134186b1
Publikováno v:
Biogeosciences, Vol 17, Pp 1765-1803 (2020)
Marine aggregates are the vector for biogenically bound carbon and nutrients from the euphotic zone to the interior of the oceans. To improve the representation of this biological carbon pump in the global biogeochemical HAMburg Ocean Carbon Cycle (H
Externí odkaz:
https://doaj.org/article/0a4024db3eb6474f8cbba4d306254fd2
Publikováno v:
Biogeosciences, Vol 16, Pp 2543-2555 (2019)
The atmospheric CO2 concentration increased by about 20 ppm from 6000 BCE to the pre-industrial period (1850 CE). Several hypotheses have been proposed to explain mechanisms of this CO2 growth based on either ocean or land carbon sources. Here,
Externí odkaz:
https://doaj.org/article/b38556b019d34ef7b15fab4ce2c57ee9
Publikováno v:
Earth System Dynamics, Vol 9, Pp 1283-1300 (2018)
Observations indicate that positively buoyant marine cyanobacteria, which are abundant throughout the tropical and subtropical ocean, have a strong local heating effect due to light absorption at the ocean surface. How these local changes in radiativ
Externí odkaz:
https://doaj.org/article/8fa47b320f1b42648cebe87f0c7da636
Autor:
U. Mikolajewicz, F. Ziemen, G. Cioni, M. Claussen, K. Fraedrich, M. Heidkamp, C. Hohenegger, D. Jimenez de la Cuesta, M.-L. Kapsch, A. Lemburg, T. Mauritsen, K. Meraner, N. Röber, H. Schmidt, K. D. Six, I. Stemmler, T. Tamarin-Brodsky, A. Winkler, X. Zhu, B. Stevens
Publikováno v:
Earth System Dynamics, Vol 9, Pp 1191-1215 (2018)
To enhance understanding of Earth's climate, numerical experiments are performed contrasting a retrograde and prograde rotating Earth using the Max Planck Institute Earth system model. The experiments show that the sense of rotation has relatively
Externí odkaz:
https://doaj.org/article/86dd16e181b8421b97cd7efdee519f4c
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 11973-11990 (2018)
Oceanic very short-lived substances (VSLSs), such as bromoform (CHBr3), contribute to stratospheric halogen loading and, thus, to ozone depletion. However, the amount, timing, and region of bromine delivery to the stratosphere through one of the m
Externí odkaz:
https://doaj.org/article/cefec36bcf1644c78f342284427a0f59
Autor:
G. Lammel, C. Degrendele, S. S. Gunthe, Q. Mu, A. Muthalagu, O. Audy, C. V. Biju, P. Kukučka, M. D. Mulder, M. Octaviani, P. Příbylová, P. Shahpoury, I. Stemmler, A. E. Valsan
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 11031-11040 (2018)
Persistent organic pollutants that have accumulated in soils can be remobilised by volatilisation in response to chemical equilibrium with the atmosphere. Clean air masses from the Indian Ocean, advected with the onset of the summer monsoon, are f
Externí odkaz:
https://doaj.org/article/34173cb7af514507aaec43a0d9405bd0
Autor:
W. A. Müller, J. H. Jungclaus, T. Mauritsen, J. Baehr, M. Bittner, R. Budich, F. Bunzel, M. Esch, R. Ghosh, H. Haak, T. Ilyina, T. Kleine, L. Kornblueh, H. Li, K. Modali, D. Notz, H. Pohlmann, E. Roeckner, I. Stemmler, F. Tian, J. Marotzke
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 10, Iss 7, Pp 1383-1413 (2018)
Abstract The MPI‐ESM1.2 is the latest version of the Max Planck Institute Earth System Model and is the baseline for the Coupled Model Intercomparison Project Phase 6 and current seasonal and decadal climate predictions. This paper evaluates a coup
Externí odkaz:
https://doaj.org/article/ed4e367268334ec4a7b9912c7a691cae
Publikováno v:
Biogeosciences, Vol 14, Iss 2, Pp 403-413 (2017)
The current generation of marine biogeochemical modules in Earth system models (ESMs) considers mainly the effect of marine biota on the carbon cycle. We propose to also implement other biologically driven mechanisms in ESMs so that more climate-rele
Externí odkaz:
https://doaj.org/article/67f5691cc3de479c8e321dcd06a89dc8
Publikováno v:
Biogeosciences, Vol 12, Iss 6, Pp 1967-1981 (2015)
Bromoform (CHBr3) is one important precursor of atmospheric reactive bromine species that are involved in ozone depletion in the troposphere and stratosphere. In the open ocean bromoform production is linked to phytoplankton that contains the enzy
Externí odkaz:
https://doaj.org/article/98b023bc64aa48debe8425b86d698c4f