1. General Model Information

Name: Carnegie-Ames-Stanford Approach (CASA) Biosphere model

Acronym: CASA

Main medium: terrestrial
Main subject: biogeochemistry
Organization level: global
Type of model: compartment model
Main application:
Keywords: carbon dynamics, global change, nitrogen, NPP, satellite data, up-scaling


Chris Field
Carnegie Institution of Washington
Department of Plant Biology
290 Panama Street
Stanford, CA 94305
Email: chris@jasper.stanford.edu

Matthew Thompson
Harvard University
Biological Laboratories
16 Divinity Avenue
Cambridge, MA 02138
Tel.: +1 617 496 3580
Fax: +1 617 496 5854
Email: mthompso@oeb.harvard.edu


see contact


The CASA2 Biosphere Model is a spatially-resolved modeling environment designed to extrapolate ecophysiological and biogeochemical principles to the global scale. Its main advantage is its reliance on both satellite data and a mechanistic plant and soil carbon model to model the flow of carbon through terrestrial ecosystems. A number of interesting applications of the model have been developed recently with the aim of exploring, among other things:

CASA calculates the seasonal flow of carbon between the atmosphere and the terrestrial biosphere on a number of different time steps and a multitude of spatial resolutions. The main strength of the CASA model is its ability to use remote sensing data to calculate net primary production (NPP) and carbon turnover mechanistically through a CENTURY-like plant and soil carbon cycling model

Author of this abstract: Matthew Thompson

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s): ANSI C and C-shell scripts

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

Field, Christopher B., James T. Randerson, Carolyn M. Malmström(1995) Global net primary production: combining ecology and remote sensing,
REMOTE SENS. ENVIRON. 51(1): 74-97 (abstract).

Potter, Christopher S., James T. Randerson, Christopher B. Field, PamelaA. Matson, Peter M. Vitousek, Harold A. Mooney, Steven A. Klooster (1993)Terrestrial ecosystem production: a process model based on global satelliteand surface data,
GLOBAL BIOGEOCHEM. CYCLES 7(4): 811-841. (abstract)

Randerson, James T., Matthew V. Thompson, Carolyn M. Malmström,Christopher B. Field (1996)Substrate limitation for heterotrophs: Implications for models that estimatethe seasonality of atmospheric CO2,

Thompson, Matthew V., James T. Randerson, Carolyn M. Malmström,Christopher B. Field (1996)Change in net primary production and heterotrophic respiration: How muchis necessary to sustain the terrestrial carbon sink,
GLOBAL BIOGEOCHEM. CYCLES 10(4): 711-726, (abstract).

V. Further information in the World-Wide-Web

Home page of CASA.

VI. Additional remarks

Last review of this document by: MatthewThompson (address above): April, 15th 1997
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:40 CEST 2002

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