Доклады новосибирских участников
There are many reasons to incorporate biochemical processes into
general circulation model (GCM). One of them is the need to assess the
fluxes of greenhouse gases CO2 and CH4 etc. between terrestrial
biosphere and atmosphere and simulate future climates for which no
exist observation data. A lot of land surface models have been
developed for using within GCM to provide exchanges of energy,
moisture, momentum and biochemical fluxes between surface and
atmosphere. The need to realistically simulate these exchanges,
espe-cially over long timescale, is the most obvious reason for
including a comprehensive sur-face model into GCM.
The recent changes in the global atmospheric CO2 and CH4 concentration
are observed by the CMDL/NOAA [1]. It can be seen the global
atmospheric CO2 and CH4 concentration has increased until now. To
understand the variations of the global CO2 and CH4 concen-tration we
must establish what are sources and sinks of these gases and what is
their sources power.
The land surface model considered in this report is an extension of
this earlier model devel-opment [2]. The model is able to predict
terrestrial photosynthesis and respiration of CO2 from land surface
vegetation and methane emissions from natural wetlands. With the
re-quirement that the model is implemented globally, many surface
type needed to be in-cluded. Proposed version of the land surface
model combines a rather complete accounting for physical factors to
assess the interaction of the atmosphere with the surface and
avail-ability for including in the general circulation model [3].
This work was supported by the Russian Fund of Fundamental
Research 00-05-65459.
References
Примечание. Тезисы докладов публикуются в авторской редакции
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