1. General Model Information

Name: Osnabrueck Biosphere Model

Acronym: OBM

Main medium: air+terrestrial
Main subject: biogeochemistry
Organization level: biome
Type of model: compartment model
Main application:
Keywords: global change, rising CO2 level, soil organic matter, carbon, atmosphere, temperature, process-based


Prof. Dr. Gerd Esser
Inst. f. Pflanzenökologie
Heinrich-Buff-Ring 38 (MZVG)
35392 Giessen
Email: G. Esser


Prof. Dr. Gerd Esser


Esser (1990) developed the Osnabruck Biosphere Model (OBM) to simulate global terrestrial sources and sinks of CO2 with special reference to soil organic matter. The model is grid-based and estimates the influences of (a) the rising atmospheric CO2 level, (b) the temperature change due to greenhouse effect, and (c) the clearing of forests and other natural vegetation, on the development of the biospheric pools, the soil organic carbon and the atmospheric CO2.

(from: Donigan, A.S.; et al.: 1994 : Assessment of Alternative Management Practices and Policies Affecting Soil Carbon in Agroecosystems of the Central United States. P.33.)

The model was renamed to HRBM (High Resolution Biome Model).

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s):

II.3 Manuals:

II.4 Data:

The model results have not been validated with independent data.

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

Esser, G., 1991
Osnabruck Biosphere Model: structure, construction, results. In: ModernEcology: basic and applied aspects (G. Esser and D. Overdieck, eds.). Elsevier,Amsterdam and London. pp. 679-709.
Esser, G., 1984
The significance of biospheric carbon pools and fluxes for atmosphericCO2: A proposed model structure. Progress in Biometeorology 3, 253-294.
Esser, G., 1986
The carbon budget of the biosphere - structure and preliminary resultsof the Osnabruck Biosphere Model. Veroff. Naturf. Ges. zu Emden von 18147:1-160.
Esser, G. & M. Lautenschlager, 1994
Estimating the Change Of Carbon in the Terrestrial Biosphere from 18000-BPto Present Using a Carbon-Cycle Model. Environmental Pollution Vol. 83,No. 1-2, pp. 45-53.

V. Further information in the World-Wide-Web

Informationabout OBM (HRBM) from GCTE

Report of the POTSDAM'95 IGBP NPP Model Intercomparison Workshop

VI. Additional remarks

Model simulations for the period of 1860-1980 and for 1980 only were performed. Five conclusions were drawn from the study :

Last review of this document by: January 22, 1997 M.Sonntag: sonntag@usf.uni-kassel.de
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:46 CEST 2002

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