This data set contains model input and output data for four simulations of varying time periods and spatial coverage. The first two simulations are for acidic tussock tundra in the Toolik Lake region of the Kuparuk River watershed for the years 1921 to 2144. Each of these simulations is made up of two parts. The first part is based upon a reconstruction of historical climate variables from 1921 ... to 1995, while the second part is based upon a doubling of C02 and the concurrent changes in temperature, soil moisture, and irradiance from 1996 to 2144. The historical period is the same for both simulations. The future period differs between the two simulations: One simulation assumes a direct relationship between soil moisture and temperature (i.e., warmer and wetter), and the other assumes an inverse relationship between soil moisture and temperature (i.e., warmer and drier). The climate drivers used for the simulations are included as part of this dataset.
The second two simulations are for acidic tussock tundra throughout the entire Kuparuk River basin for 1995 only. The first simulation uses the reconstructed 1995 climate. The second simulation uses the same climate with an increase in soil moisture. The model output data consist of 34 variables including photosynthesis, plant and soil respiration, net primary production, net mineralization, and carbon and nitrogen stocks in plant tissues and soils.
Use of these data requires the user to: Send a notice to the principal investigator stating the reasons for acquiring any data and describing publication intentions. Send a copy of the report or manuscript to the principal investigator prior to submission and adequately cite the principal investigator in any resultant publications. Send a copy of resultant publications to the Principal Investigator: Dr. John Hobbie Ecosystems Center Marine Biological laboratory Woods Holes, MA 02543
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Province or State:
Hobbie, J.E., B.L. Kwiatkowski, E.B. Rastetter, D.A. Walker, and R.B. McKane. 1998. Carbon cycling in the Kuparuk basin: Plant production, carbon storage, and sensitivity to future changes. Journal of Geophysical Research D: Atmospheres 103(D22): 29,065-29,073.
Keeling, C.D., R.B. Bacastow, T.P. Whorf. 1982. 'Measurements of the concentration of carbon dioxide at Mauna Loa Observatory, ... Hawaii.' in Carbon Dioxide Review: 1982. edited by W.C. Clark. pp. 377-385, Oxford University press, New York, New York.
Maxwell, B. 1992. 'Arctic climate: Potential for change under global warming, in Arctic Ecosystems,' in A Changing Climate, edited by F.S. Chapin, R.L. Jefferies, J.F. Reynolds, G.R. Shaver and J. Svoboda. pp. 11-34. Academic Press, San Diego.
McKane, R.B., E.B. Rastetter, G.R. Shaver, K.J. Nadelhoffer, A.E. Giblin, J.A. Laundre, F.S. Chapin. 1997a. 'Effects of experimental changes in CO2 and climate on carbon storage in arctic tundra.' Ecology 78:1170-1187.
McKane, R.B., E.B. Rastetter, G.R. Shaver, K.J. Nadelhoffer, A.E. Giblin, J.A. Laundre, F.S. Chapin. 1997b. 'Reconstruction and analysis of historical changes in carbon storage in arctic tundra.' Ecology 78:1188-1198.
Neftel, A., E. Moor, H. Oeschger, B. Stauffer. 1985. 'Evidence from polar ice cores for the increase in atmospheric CO2 in the past two centuries,' Nature 315:45-47.
Rastetter, E.B., M.G. Ryan, G.R. Shaver, J.M. Mellillo, K.J. Nadelhoffer, J.E. Hobbie, J.D. Aber. 1991. A general biogeochemical model describing the responses of the C and N cycles in terrestrial ecosystems to changes in CO2, climate, and N deposition. Tree Physiology 9:101-126.