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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 7, NUMBER 4, APRIL 1994

PROFESSIONAL PUBLICATIONS...

• CARBON CYCLE

Item #d94apr47

"The Lifetime of Excess Atmospheric Carbon Dioxide," B. Moore III (Inst. Stud. Earth, Oceans & Space, Univ. New Hampshire, Durham NH 03824), B.H. Braswell, Global Biogeochem. Cycles, 8(1), 23-38, Mar. 1994.

Used carbon cycle models to study effects of changing terrestrial biosphere on atmospheric residence time. Half-lives were 19-49 years assuming a fertilization flux, 72 years assuming regrowth only, and 92 years with no terrestrial component.

Item #d94apr48

Two items from Tellus, 45B(5), Nov. 1993:

"Physiological Derivation of the Observed Relationship Between Net Primary Production [NPP] and Mean Annual Air Temperature," G.B. Bonan (NCAR, POB 3000, Boulder CO 80307), 397-408. Used a forest carbon exchange model to show that simple assumptions can result in reasonable predictions of NPP over a wide range of climates, and that the model's NPP component may be a means of integrating terrestrial carbon flux into global climate models.

"Balancing the Carbon Budget. Implications for Projections of Future Carbon Dioxide Concentration Changes," T.M.L. Wigley (Off. Interdisciplinary Earth Stud., UCAR, Boulder CO 80307), 409-425. Describes a carbon cycle model which gives a range of projections for the missing sink, and insight into uncertainties.

Item #d94apr49

"A Data-Based Re-Appraisal of the Terrestrial Carbon Budget at the Last Glacial Maximum," E. Van Campo (Lab. Géol. Quaternaire, CNRS Luminy, 13288 Marseille cedex, France), J. Guiot, C. Peng, Global & Planetary Change, 8(4), 189-201, Nov. 1993.

The new estimates for the terrestrial biospheric sink for CO2 released by oceans presented here should help reconcile the conflict between results based on terrestrial data and those based on marine carbon isotope changes.

Item #d94apr50

"Possible Effects of Ozone Depletion on the Global Carbon Cycle," T.H. Peng, Radiocarbon, 34(3), 772-779, 1992. (See GCCD, Mar. 1994.)

Specialized Papers

Item #d94apr51

"Methodology for the Estimation of Terrestrial Net Primary Production from Remotely Sensed Data," A. Ruimy (Lab. Ecol. Vég., CNRS URA 1492 Bâtiment 362, Univ. Paris-Sud, 91405 Orsay Cedex, France), B. Saugier, G. Dedieu, J. Geophys. Res., 99(D3), 5263-5283, Mar. 20, 1994.

Item #d94apr52

"El Niño-Southern Oscillation Related Fluctuations of the Marine Carbon Cycle," A.M.E. Winguth (Max Planck Inst. Meteorol., Bundesstr. 55, D-20146 Hamburg, Ger.), M. Heimann et al., Global Biogeochem. Cycles, 8(1), 39-63, Mar. 1994.

Item #d94apr53

"On the Response of the Background Atmospheric CO2 Growth Rate to the Anomalies of the Sea-Surface Temperature in the Equatorial Pacific Ocean," F. Martín (CIEMAT, Avda. Complutense, 22. 28040 Madrid, Spain), F. Valero, J.A. García-Miguel, Atmos. Environ., 28(3), 517-530, Feb. 1994.

Item #d94apr54

"Changes in the O2/N2 Ratio of the Atmosphere During Recent Decades Reflected in the Composition of Air in the Firn at Vostok Station, Antarctica," M.L. Bender (Grad. Sch. Oceanog., Univ. Rhode Island, Kingston RI 02881), T. Sowers et al., Geophys. Res. Lett., 21(3), 189-192, Feb. 1, 1994.

Item #d94apr55

Two items from J. Geophys. Res., 99(D1), Jan. 20, 1994:

"Aspects of Spatial and Temporal Aggregation in Estimating Regional Carbon Dioxide Fluxes from Temperate Forest Soils," D.W. Kicklighter (Ecosyst. Ctr., Mar. Biol. Lab., Woods Hole MA 02543), J.M. Melillo et al., 1303-1315.

"Atmosphere-Biosphere Exchange Flux of Carbon Dioxide in a Tallgrass Prairie Modeled with Satellite Spectral Data," W. Gao (Environ. Res. Dev., Argonne Natl. Lab., Argonne IL 60439), 1317-1327,

Item #d94apr56

"Effect of Deep-Sea Sedimentary Calcite Preservation on Atmospheric CO2 Concentration," D. Archer (Dept. Geophys. Sci., 5734 S. Ellis Ave., Univ. Chicago, Chicago IL 60637), E. Maier-Reimer, Nature, 367(6460), 260-263, Jan. 20, 1994. A decrease in calcite deposition rate can explain why atmospheric CO2 decreased during the last glaciation.

Item #d94apr57

"Variability of Sources and Sinks of CO2 in the Western Indian and Southern Oceans During the Year 1991," A. Poisson (Univ. Pierre & Marie Curie, case 134, 4 pl. Jussieu, 75252 Paris Cedex 05, France), N. Metzl et al., J. Geophys. Res., 98(C12), 22,759-22,778, Dec. 15, 1993.

Item #d94apr58

"Evaluating Subduction Intensity by the Flux of CO2 into the Ocean," A.Kh. Degterev (Mar. Hydrophys. Inst., Ukrainian Acad. Sci.), Izvestiya, Atmos. & Ocean. Phys., 28(2), 1992 (Eng. ed. of Sep. 1992).