Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Ben Sommeijer"'
Publikováno v:
Applied Numerical Mathematics. 59:405-409
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cf63aedfe41077797bd23bf5815b970
https://doi.org/10.1016/j.apnum.2008.03.026
https://doi.org/10.1016/j.apnum.2008.03.026
Publikováno v:
SIAM Journal on Applied Mathematics, 69(4), 1174-1204. Society for Industrial and Applied Mathematics Publications
SIAM journal on applied mathematics, 69(4):10.1137/070693692, 1174-1204. Society for Industrial and Applied Mathematics Publications
SIAM journal on applied mathematics, 69(4):10.1137/070693692, 1174-1204. Society for Industrial and Applied Mathematics Publications
Recently, it has been discovered that the dynamics of phytoplankton concentrations in an ocean exhibit a rich variety of patterns, ranging from trivial states to oscillating and even chaotic behavior [J. Huisman, N. N. Pham Thi, D. M. Karl, and B. P.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f48fa047a6ed7bff350e8cb86774404b
https://dare.uva.nl/personal/pure/en/publications/blooming-in-a-nonlocal-coupled-phytoplanktonnutrient-model(3078ae2b-4cde-4135-b37b-faa66f1ae52c).html
https://dare.uva.nl/personal/pure/en/publications/blooming-in-a-nonlocal-coupled-phytoplanktonnutrient-model(3078ae2b-4cde-4135-b37b-faa66f1ae52c).html
Publikováno v:
Global Change Biology. 14:495-512
Dense surface blooms of toxic cyanobacteria in eutrophic lakes may lead to mass mortalities of fish and birds, and provide a serious health threat for cattle, pets, and humans. It has been argued that global warming may increase the incidence of harm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2541259e451e846d080615cd4202906
https://doi.org/10.1111/j.1365-2486.2007.01510.x
https://doi.org/10.1111/j.1365-2486.2007.01510.x
Publikováno v:
ASLO Abstract book summer meeting
Nature, 439(19), 322-325. Nature Publishing Group
Nature, 439, 322-325
Nature, 439(19), 322-325. Nature Publishing Group
Nature, 439, 322-325
Deep chlorophyll maxima (DCMs) are widespread in large parts of the world's oceans. These deep layers of high chlorophyll concentration reflect a compromise of phytoplankton growth exposed to two opposing resource gradients: light supplied from above
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d239fda2ccb2c244a4d5d6a6955eb2b4
https://hdl.handle.net/11245/1.258588
https://hdl.handle.net/11245/1.258588
Autor:
Jörg Wensch, Ben Sommeijer
Publikováno v:
Parallel Computing. 30:163-186
In this paper we discuss a model from neurobiology, which describes the outgrowth of axons from neurons in the nervous system. The model combines ordinary differential equations, defining the movement of the axons, with parabolic partial differential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7016914a0d702a5ce042dfe7e72402cb
https://doi.org/10.1016/j.parco.2003.04.006
https://doi.org/10.1016/j.parco.2003.04.006
Autor:
Jan Verwer, Ben Sommeijer
Publikováno v:
SIAM Journal on Scientific Computing, 25, 1824-1835. Society for Industrial and Applied Mathematics Publications
An implicit-explicit (IMEX) extension of the explicit Runge--Kutta--Chebyshev (RKC) scheme designed for parabolic PDEs is proposed for diffusion-reaction problems with severely stiff reaction terms. The IMEX scheme treats these reaction terms implici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f33958bf185c7f27b84d3e8b1b19a749
https://doi.org/10.1137/s1064827503429168
https://doi.org/10.1137/s1064827503429168
Publikováno v:
Journal of computational Physics, 201, 61-79. Academic Press Inc.
The original explicit Runge-Kutta-Chebyshev (RKC) method is a stabilized second-order integration method for pure diffusion problems. Recently, it has been extended in an implicit explicit manner to also incorporate highly stiff reaction terms. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05e02d097926ecf829bbd859693b36e2
https://doi.org/10.1016/j.jcp.2004.05.002
https://doi.org/10.1016/j.jcp.2004.05.002
Autor:
W. Edwin A. Kardinaal, Jolanda M. H. Verspagen, J. Stroom, Ben Sommeijer, Jef Huisman, Jonathan Sharples, Petra M. Visser
Publikováno v:
Ecology, 85(11), 2960-2970. Wiley-Blackwell
The intriguing impact of physical mixing processes on species interactions has always fascinated ecologists. Here, we exploit recent advances in plankton models to develop competition theory that predicts how changes in turbulent mixing affect compet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc869c1a8f90e7eda81c53347d4d1067
https://doi.org/10.1890/03-0763
https://doi.org/10.1890/03-0763
Autor:
Ben Sommeijer, Jef Huisman
Publikováno v:
Journal of Sea Research, 48, 83-96. Elsevier
Phytoplankton use light for photosynthesis, and the light flux decreases with depth. As a result of this simple light dependence, reaction-advection-diffusion models describing the dynamics of phytoplankton species contain an integral over depth. Tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49d55aac88f45938e10d0d24388d908f
https://dare.uva.nl/personal/pure/en/publications/population-dynamics-of-sinking-phytoplankton-in-lightlimited-environments-simulation-techniques-and-critical-parameters(e06159da-2325-448c-9143-fb411ae49024).html
https://dare.uva.nl/personal/pure/en/publications/population-dynamics-of-sinking-phytoplankton-in-lightlimited-environments-simulation-techniques-and-critical-parameters(e06159da-2325-448c-9143-fb411ae49024).html
Autor:
Jef Huisman, Ben Sommeijer
Publikováno v:
Marine Ecology Progress Series. 244:39-48
Most phytoplankton species have a tendency to sink. Phytoplankton require light for photosynthesis, however. Therefore, phytoplankton species that sink too fast will not be able to sus- tain a viable population in the euphotic zone. This points to th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bb4ac7e52cf5cf0e841197e8c3b08e7
https://doi.org/10.3354/meps244039
https://doi.org/10.3354/meps244039