Premium
The substitution of high‐resolution terrestrial biosphere models and carbon sequestration in response to changing CO 2 and climate
Author(s) -
Meyer Robert,
Joos Fortunat,
Esser G.,
Heimann M.,
Hooss G.,
Kohlmaier G.,
Sauf W.,
Voss R.,
Wittenberg U.
Publication year - 1999
Publication title -
global biogeochemical cycles
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.512
H-Index - 187
eISSN - 1944-9224
pISSN - 0886-6236
DOI - 10.1029/1999gb900035
Subject(s) - biosphere , carbon sequestration , environmental science , carbon cycle , biosphere model , radiative forcing , climate change , greenhouse gas , primary production , climate model , atmospheric sciences , global change , atmospheric carbon cycle , climatology , geology , carbon dioxide , ecology , ecosystem , biology , oceanography
Strategies are developed to analyze and represent spatially resolved biosphere models for carbon sequestration in response to changes in atmospheric CO 2 and climate by reduced‐form, substitute models. We explore the High‐Resolution Terrestrial Biosphere Model as implemented in the Community Terrestrial Biosphere Model (HRBM/CTBM), the Frankfurt Biosphere Model (FBM), and the box‐type biosphere of the Bern model. Storage by CO 2 fertilization is described by combining analytical representations of (1) net primary productivity (NPP) as a function of atmospheric CO 2 and (2) a decay impulse response function to characterize the timescales of biospheric carbon turnover. Storage in response to global warming is investigated for the HRBM/CTBM. The relation between the evolution of radiative forcing and climate change is expressed by a combination of impulse response functions and empirical orthogonal functions extracted from results of the European Center/Hamburg (ECHAM3) coupled atmosphere‐ocean general circulation model. A box‐type, differential‐analogue substitute model is developed to represent global carbon storage of the HRBM/CTBM in response to regional changes in Temperature, Precepitation and cloud cover. The substitute models represent the spatially resolved models accurately and cost‐efficiently for carbon sequestration in response to changes in CO 2 or in CO 2 and climate and for simulations of the global isotopic signals. Deviations in carbon uptake simulated by the spatially resolved models and their substitutes are less than a few percent.