David J. Verardo
AGS Division of Atmospheric and Geospace Sciences
GEO Directorate for Geosciences
Start Date:
October 1, 2001
Expires:
September 30, 2008 (Estimated)
Awarded Amount to Date:
$3410000
Investigator(s):
Raymond Pierrehumbert rtp1@geosci.uchicago.edu (Principal Investigator)
David Archer (Co-Principal Investigator) Gidon Eshel (Co-Principal Investigator) David Beazley (Co-Principal Investigator) John Taylor (Co-Principal Investigator)
Sponsor:
University of Chicago
5801 South Ellis Avenue
Chicago, IL 60637 773/702-8602
ABSTRACT
The PIs will develop a flexible modeling environment that they will make broadly available to the climate change community. This requires a radically new approach to the organization, development, documentation and dissemination of climate models. There is collaboration with Argonne National Laboratories for development of the open source, providing an online textbook documenting its use, and providing a system for collecting, testing, certifying and disseminating modules developed elsewhere. The system will be developed within the interpreted object-oriented Python language. This has been used successfully for a range of other scientific applications. Work under this award will resolve the grand-challenge mysteries facing climate science using coupled ocean-atmosphere modeling. A confluence of developments of physical understanding, numerical methods and computing power makes it feasible to address questions related to different epochs in the paleoclimate record. The work is important because it represents a testbed for novel software development approaches to climate modeling.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
Archer D and Buffett B. "Time-dependent response of the global
ocean clathrate reservoir to climatic and anthropogenic forcing.," Geophys. Geochem Geosystems, v.6, 2004, p. 000.
Archer D and Ganopolski A. "A movable trigger: Fossil fuel CO2 and the onset of the next glaciation," Geochem Geophys Geosys, v.6, 2005, p. 000.
Archer D, Martin P, Buffett B, Brovkin V, Rahmstorf S and Ganapolski A. "The importance of the deep ocean temperature to global biogeochemistry," Earth and Planet. Sci. Letters, v.222, 2004, p. 333.
Archer D, Martin P, Milovich J, Brovkin V, Plattner K and Ashendel C. "Model sensitivity in the effect of Antarctic sea ice and stratification on atmospheric pCO2," Paleoceanography, v.18, 2003, p. 1012.
Archer, D.. "Who threw that snowball?," Science, v.302, 2003, p. 791.
Buffett B and Archer D. "Global inventory of methane clathrate: Sensitivity to changes in environmental conditions," Earth and Planet Sci. Letters, v.227, 2004, p. 185.
Caballero R, Mitchell J and Pierrehumbert R. "Axisymmetric nearly-inviscid circulations in non-condensing radiative-convective atmospheres," Quarterly Journal of the Royal Meteorological Society, v.134, 2008, p. 1269.
Donnadieu Y, Godderis Y, Cecca F, Pierrehumbert R, Ramstein G, Dessert C, and Dupre B. "Modelling long term climatic and geochemical consequences of the Karoo-Ferrar Traps
eruption (183Ma)," Geochimica et Cosmochimica Acta, v.68, 2004, p. A575.
Donnadieu, Y; Godderis, Y; Pierrehumbert, R; Dromart, G; Fluteau, F; Jacob, R. "A GEOCLIM simulation of climatic and biogeochemical consequences of Pangea breakup," GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, v.7, 2006.
Eshel G.. "Forecasting the North Atlantic Oscillation using Pacific Surface Pressure.," Mon. Wea. Rev., v.131, 2003, p. 1018.
Godderis, Y; Donnadieu, Y; de Vargas, C; Pierrehumbert, RT; Dromart, G; van de Schootbrugge, B. "Causal or casual link between the rise of nannoplankton calcification and a tectonically-driven massive decrease in Late Triassic atmospheric CO2?," EARTH AND PLANETARY SCIENCE LETTERS, v.267, 2008, p. 247-255.
Huynh TT and Poulsen CJ. "Rising CO2 as a possible trigger of the end-Triassic mass extinction," Palaeogeography Palaeoclimatology Palaeoecology, v.217, 2005, p. 223.
Jason Goodman and Raymond Pierrehumbert. "Glacial flow of floating marine ice in "Snowball Earth"," Journal of Geophysical Research, Oceans, v.108C10, 2003, p. 3308.
Kirby, R. "On the convergence of high resolution methods with multiple time scales for hyperbolic conservation laws," Math. Comp, v.72, 2003, p. 1239.
Kirby, R. "FIAT: A new paradigm for computing finite element basis functions," ACM Transactions on Mathematical Software, v.30, 2004, p. 502.
Le Hir G, Donnadieu Y, Godderis Y, Pierrehumbert RT, Macouin M, Halverson G, Nedelec A, and Ramstein G. "The Snowball Earth aftermath: exploring the limits of continental weathering processes," Earth and Planetary Science Letters, 2008.
Lewis JP, Eby M, Weaver AJ, Johnston ST, Jacob RL. "Global glaciation in the Neoproterozoic: Reconciling previous modeling results," Geophysical Res Lett, v.31, 2004, p. 115.
Lin, J. W.-B.. "A Python Implementation of the Neelin-Zeng Quasi-Equilibrium Tropical Circulation model," Geosci. Model Dev. Discuss., v.1, 2008, p. 315.
Mitchell, JL. "The drying of Titan's dunes: Titan's methane hydrology and its impact on atmospheric circulation," JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, v.113, 2008.
Mitchell, JL; Pierrehumbert, RT; Frierson, DMW; Caballero, R. "The dynamics behind Titan's methane clouds," PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, v.103, 2006, p. 18421-18426.
Ong ET, Larson JW and Jacob RL. "A real application of the model coupling toolkit," Computational Science-ICCS 2002 PT II Proceedings, v.2330, 2002, p. 000.
Ong, ET; Larson, JW; Norris, B; Jacob, RL; Tobis, M; Steder, M. "A multilingual programming model for coupled systems," INTERNATIONAL JOURNAL FOR MULTISCALE COMPUTATIONAL ENGINEERING, v.6, 2008, p. 39-51.
Pierrehumbert, R. T.. "Climate Dynamics of a Hard Snowball Earth," J. Geophys. Res. (Atmospheres), v.110, D1, p. 10.1029/2.
Poulsen CJ. "Absence of a runaway ice-albedo feedback in the Neoproterozoic," Geology, v.31, 2003, p. 473.
Poulsen CJ and Jacob RL. "Factors that inhibit snowball Earth simulations," Paleoceanography, v.19, 2004, p. 000.
Poulsen CJ, Gendaszek AS and Jacob RL. "Did the rifting of the Atlantic ocean cause the Cretaceous thermal maximum?," Geology, v.21, 2003, p. 115.
Poulsen CJ, Jacob RL, Pierrehumbert RT and Huynh, TT. "Testing paleogeographic controls on a Neoproterozoic snowball Earth," Geophysical Research Letters, v.29, 2002, p. 000.
R. B. Alley, J. Marotzke, W. D. Nordhaus, J. T. Overpeck, D. M. Peteet, R. A. Pielke, Jr., R. T. Pierrehumbert, P. B. Rhines, T. F. Stocker, L. D. Talley, and J. M. Wallace. "Abrupt Change," Science, v.299, 2003, p. 2005.
Ramstein G, Khodri M, Donnadieu Y, Fluteau F and Godderis Y. "Impact of the hydrological cycle on past climate changes: three illustrations at different
time scales," Comptes Rendus Geoscience, v.337, 2005, p. 125.
Raymond T. Pierrehumbert. "The hydrologic cycle in deep-time climate problems," Nature, v.419, 2002, p. 191.
Robert C. Kirby. "A new look at expression templates for matrix
computation," IEEE Computing in Science and Engineering, v.5, 2003, p. 66.
Sabato, JS. "CO2 condensation in baroclinic eddies on early Mars," JOURNAL OF THE ATMOSPHERIC SCIENCES, v.65, 2008, p. 1378-1395.
Tobis M. "PyNSol: Objects as Scaffolding," Computers in Science and Engineering, v.7, 2005, p. 76.
Tobis M. "PyNSol: Objects as Scaffolding," Computing in Science and Engineering, v.7, 2005, p. 84.
