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Seven years of Net Primary Production (NPP) with Global Sea Surface Temperature.
To view El Nino Effects on the Biosphere 1982 - 1988 download - 3 MByte mpeg
El Nino Effects on the Biosphere
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Support for computing resources provided by the High Performance Computing
and Communications (HPPC) Program by granting access to their testbed
computers.
The NASA-CASA (Carnegie-Ames-Stanford Approach) model simulates net primary
production (NPP) and soil heterotrophic respiration (Rh) at regional to global
scales.
Calculation of monthly terrestrial NPP is based on the concept of light-use
efficiency, modified by temperature and moisture stress scalars. Soil carbon
cycling and Rh flux components of the model are based on a compartmental pool
structure, with first-order equations to simulate loss of CO2 from decomposing
plant residue and surface soil organic matter (SOM) pools. Model outputs
include the response of net CO2 exchange and other major trace gases in
terrestrial ecosystems to interannual climate variability (1983 to 1988)
in a transient simulation mode.
Conceptual Overview
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