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| Titel |
The Joint UK Land Environment Simulator (JULES), model description – Part 2: Carbon fluxes and vegetation dynamics |
| VerfasserIn |
D. B. Clark, L. M. Mercado, S. Sitch, C. D. Jones, N. Gedney, M. J. Best, M. Pryor, G. G. Rooney, R. L. H. Essery, E. Blyth, O. Boucher, R. J. Harding, C. Huntingford, P. M. Cox |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 4, no. 3 ; Nr. 4, no. 3 (2011-09-01), S.701-722 |
| Datensatznummer |
250001783
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| Publikation (Nr.) |
 copernicus.org/gmd-4-701-2011.pdf |
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| Zusammenfassung |
The Joint UK Land Environment Simulator (JULES) is a process-based
model that simulates the fluxes of carbon, water, energy and momentum
between the land surface and the atmosphere. Many studies
have demonstrated the important role of the land surface in the functioning of the Earth
System. Different versions of JULES have been employed to quantify the
effects on the land carbon sink of climate change, increasing atmospheric
carbon dioxide concentrations, changing atmospheric
aerosols and tropospheric ozone, and the response of methane emissions
from wetlands to climate change.
This paper describes the
consolidation of these advances in the modelling of carbon fluxes
and stores, in both the vegetation and soil, in version 2.2 of
JULES. Features include a multi-layer canopy scheme for light
interception, including a sunfleck penetration scheme, a coupled
scheme of leaf photosynthesis and stomatal conductance, representation
of the effects of ozone on leaf physiology, and a description of
methane emissions from wetlands. JULES represents the carbon
allocation, growth and population dynamics of five plant functional
types. The turnover of carbon from living plant tissues is fed into
a 4-pool soil carbon model.
The process-based descriptions of key
ecological processes and trace gas fluxes in JULES mean that this
community model is well-suited for use in carbon cycle, climate change
and impacts studies, either in standalone mode or as the land
component of a coupled Earth system model. |
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