Zobrazeno 1 - 10
of 65
pro vyhledávání: '"T N Palmer"'
Publikováno v:
Geoscientific Model Development, Vol 12, Pp 3099-3118 (2019)
We introduce and study the impact of three stochastic schemes in the EC-Earth climate model: two atmospheric schemes and one stochastic land scheme. These form the basis for a probabilistic Earth system model in atmosphere-only mode. Stochastic param
Externí odkaz:
https://doaj.org/article/f3e938d4ad6b4c1d9f287a12cfab24e4
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 12, Iss 10, Pp n/a-n/a (2020)
Abstract The need for high‐precision calculations with 64‐bit or 32‐bit floating‐point arithmetic for weather and climate models is questioned. Lower‐precision numbers can accelerate simulations and are increasingly supported by modern comp
Externí odkaz:
https://doaj.org/article/a07a279b30bb409081f86799fca736fb
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 9, Iss 1, Pp 566-584 (2017)
Abstract The use of reduced numerical precision to reduce computing costs for the cloud resolving model of superparameterized simulations of the atmosphere is investigated. An approach to identify the optimal level of precision for many different mod
Externí odkaz:
https://doaj.org/article/d57a51aee1844013b2103a1ea2102401
Autor:
P. Davini, J. von Hardenberg, S. Corti, H. M. Christensen, S. Juricke, A. Subramanian, P. A. G. Watson, A. Weisheimer, T. N. Palmer
Publikováno v:
Geoscientific Model Development, Vol 10, Iss 3, Pp 1383-1402 (2017)
The Climate SPHINX (Stochastic Physics HIgh resolutioN eXperiments) project is a comprehensive set of ensemble simulations aimed at evaluating the sensitivity of present and future climate to model resolution and stochastic parameterisation. The EC-E
Externí odkaz:
https://doaj.org/article/1e85a68837bf40ed8c20a5af8a2604b2
Publikováno v:
Nonlinear Processes in Geophysics, Vol 8, Iss 6, Pp 357-371 (2001)
Operational forecasting is hampered both by the rapid divergence of nearby initial conditions and by error in the underlying model. Interest in chaos has fuelled much work on the first of these two issues; this paper focuses on the second. A new appr
Externí odkaz:
https://doaj.org/article/cc43f97ca8c64c1eb177f9e2cdb97bea
Autor:
T. N. Palmer
Publikováno v:
Undecidability, Uncomputability, and Unpredictability ISBN: 9783030703530
An uncomputable class of geometric model is described and used as part of a possible framework for drawing together the three great but largely disparate theories of 20th Century physics: general relativity, quantum theory and chaos theory. This clas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dbc96e30845f42152c0b9f69d3c4811
https://doi.org/10.1007/978-3-030-70354-7_6
https://doi.org/10.1007/978-3-030-70354-7_6
Autor:
T. N. Palmer
Publikováno v:
Biographical Memoirs of Fellows of the Royal Society. 55:139-155
Ed Lorenz was a pioneer of chaos theory; he provided the first realization of a strange attractor based on a mathematical model of just three coupled differential equations. In addition, Ed made many seminal contributions to theoretical meteorology,
Publikováno v:
Journal of Advances in Modeling Earth Systems
Programmable hardware, in particular Field Programmable Gate Arrays (FPGAs), promises a significant increase in computational performance for simulations in geophysical fluid dynamics compared with CPUs of similar power consumption. FPGAs allow adjus
Autor:
T N Palmer
Publikováno v:
Proceedings of Indian National Science Academy, Vol 60, Iss 1A (2015)
Chaos and Predictability in Forecasting the Monsoons
Publikováno v:
Biochemical Journal. 265:911-914
The rat chondrosarcoma chondrocyte has the dual capacity to metabolize glucose (mainly via glycolysis) and glutamine (via an oxidative pathway). Glutamine metabolism, unlike that of glucose, is unable to sustain intracellular ATP concentrations. Glut