Atmospheric Composition and Structure: Biosphere/atmosphere interactions; Information Related to Geologic Time: Cenozoic; Meteorology and Atmospheric Dynamics: Paleoclimatology
Abstract :
[en] A simplified three-dimensional global climate model was used to simulate the surface temperature and precipitation distributions for the Last Glacial Maximum (LGM), 18000 years ago. These fields were applied to a bioclimatic scheme which parameterizes the distribution of eight vegetation types as a function of biotemperature and annual precipitation. The model predicts a decrease, for LGM compared to present, in forested area balanced by an increase in desert and tundra extent, in agreement with a reconstruction of the distribution of vegetation based on paleodata. However, the estimated biospheric carbon content (phytomass and soil carbon) at LGM is less reduced than in the reconstructed one. Possible reasons for this discrepancy are discussed.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Friedlingstein, P.
Delire, C.
Müler, J. F.
Gérard, Jean-Claude ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Language :
English
Title :
The climate induced variation of the continental biosphere: A model simulation of the last glacial maximum
Publication date :
01 May 1992
Journal title :
Geophysical Research Letters
ISSN :
0094-8276
eISSN :
1944-8007
Publisher :
American Geophysical Union, Washington, United States - District of Columbia
Adams J.M., Faure H., Faure‐Denard L., McGlade J.M., Woodward F.I. (1990) Increase in terrestrial carbon storage from the Last Glacial Maximum to the present. Nature 348:711-714.
Barnola J.M., Raynaud D., Korotkevich Y.F., Lorius C. (1987) Vostok ice core provides 160 000 years record of atmospheric CO2. Nature 329:408-414.
Berger A. (1978) Long‐term variations of daily insolation and quaternary climate changes. Journal of the Atmospheric Sciences 35:2362-2367.
(1976) The surface of the ice‐age Earth. Science 191:1131-1137.
Esser G. (1987) Sensitivity of global carbon pools and fluxes to human and potential climatic impacts. Tellus 39 B:245-260.
Fung I., Prentice K., Matthews E., Lcrner J., Russel G. (1983) Three dimensional model study of atmospheric CO2response to sea‐sonal exchanges with the terrestrial biospher. Journal of Geophysical Research 88:1281-1294.
Goudriaan J., Keiner P. (1984) A simulation study for the global carbon cycle including man's impact on the biosphere. Clim. Change 6:167-192.
Kutzbach J.E., Guetter P.J. (1986) The influence of changing orbital parameters and surface boundary conditions on climate simulations for the past 18 000 years. J. Atmos. Sci. 43:1726-1759.
Lieth H. Primary productivity of the biosphere , Modeling the primary productivity of the world, H. Licth, R. H. Whittaker, Springer‐Verlag, New York; 1975, 237-263.
Olson J.S., Waits J.A., Allison L.J. Major world ecosystem complexes ranked by carbon in live vegetation. A data base. ORNL‐5862, Oak Ridge National Laboratory, Oak Ridge, Term; 1985.
Post W.M., Emanuel W.R., Zinke P.J., Stangenberger A.G. (1982) Soil carbon pools and world life zones. Nature 298:156-159.
Prentice K., Fung I. (1990) The sensitivity of terrestrial carbon storage to climate change. Nature 346:48-51.
Rind D. (1987) Components of the ice age circulaiion. J. Geophys. Res. 92:4241-4281.
Sellers W. (1983) A quasi three dimensional climaie model. J. dim. Appl. Meteorol. 22:1557-1574.
Sellers W. (1985) The effcct of a solar perturbation on a global climate model. J. Clim. Appl. Meteorol 24:770-776.
Shackleton N.J., Hall M.A., Line J., Shuxi (1983) Carbon isotope data in core V19–30 confirm reduced carbon dioxide concentration in the ice age atmosphere. Nature 306:319-322.