Publication Abstracts

Pawson et al. 2000

Pawson, S., K. Kodera, K. Hamilton, T.G. Shepherd, S.R. Beagley, B.A. Boville, J.D. Farrara, T.D.A. Fairlie, A. Kitoh, W.A. Lahoz, U. Langematz, E. Manzini, D.H. Rind, A.A. Scaife, K. Shibata, P. Simon, R. Swinbank, L. Takacs, R.J. Wilson, J.A. Al-Saadi, H. Amodei, M. Chiba, L. Coy, J. de Grandpré, R.S. Eckman, M. Fiorino, W.L. Grose, H. Koide, J.N. Koshyk, D. Li, J. Lerner, J.D. Mahlman, N.A. McFarlane, C.R. Mechoso, A. Molod, A. O'Neill, R.B. Pierce, W.J. Randel, R.B. Rood, and F. Wuh, 2000: The GCM-Reality Intercomparison Project for SPARC (GRIPS): Scientific issues and initial results. Bull. Amer. Meteorol. Soc., 81, 781-796, doi:10.1175/1520-0477(2000)081<0781:TGIPFS>2.3.CO;2.

To investigate the effects of the middle atmosphere on climate, the World Climate Research Programme is supporting the project "Stratospheric Processes and their Role in Climate" (SPARC). A central theme of SPARC, to examine model simulations of the coupled troposphere-middle atmosphere system, is being performed through the initiative called GRIPS (GCM — Reality Intercomparison Project for SPARC). In this paper, an overview of the objectives of GRIPS is given. Initial activities include an assessment of the performance of middle atmosphere climate models, and preliminary results from this evaluation are presented here. It is shown that although all 13 models evaluated represent most major features of the mean atmospheric state, there are deficiencies in the magnitude and location of the features, which cannot easily be traced to the formulation (resolution or the parameterizations included) of the models. Most models show a cold bias in all locations, apart from the tropical tropopause region where they can be either too warm or too cold. The strengths and locations of the major jets are often misrepresented in the models. Looking at three-dimensional fields reveals, for some models, more severe deficiencies in the magnitude and positioning of the dominant structures (such as the Aleutian high in the stratosphere), although undersampling might explain some of these differences from observations. All the models have shortcomings in their simulations of the present-day climate, which might limit the accuracy of predictions of the climate response to ozone change and other anomalous forcing.

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BibTeX Citation

  author={Pawson, S. and Kodera, K. and Hamilton, K. and Shepherd, T. G. and Beagley, S. R. and Boville, B. A. and Farrara, J. D. and Fairlie, T. D. A. and Kitoh, A. and Lahoz, W. A. and Langematz, U. and Manzini, E. and Rind, D. H. and Scaife, A. A. and Shibata, K. and Simon, P. and Swinbank, R. and Takacs, L. and Wilson, R. J. and Al-Saadi, J. A. and Amodei, H. and Chiba, M. and Coy, L. and de Grandpré, J. and Eckman, R. S. and Fiorino, M. and Grose, W. L. and Koide, H. and Koshyk, J. N. and Li, D. and Lerner, J. and Mahlman, J. D. and McFarlane, N. A. and Mechoso, C. R. and Molod, A. and O'Neill, A. and Pierce, R. B. and Randel, W. J. and Rood, R. B. and Wuh, F.},
  title={The GCM-Reality Intercomparison Project for SPARC (GRIPS): Scientific issues and initial results},
  journal={Bull. Amer. Meteorol. Soc.},

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RIS Citation

ID  - pa07000g
AU  - Pawson, S.
AU  - Kodera, K.
AU  - Hamilton, K.
AU  - Shepherd, T. G.
AU  - Beagley, S. R.
AU  - Boville, B. A.
AU  - Farrara, J. D.
AU  - Fairlie, T. D. A.
AU  - Kitoh, A.
AU  - Lahoz, W. A.
AU  - Langematz, U.
AU  - Manzini, E.
AU  - Rind, D. H.
AU  - Scaife, A. A.
AU  - Shibata, K.
AU  - Simon, P.
AU  - Swinbank, R.
AU  - Takacs, L.
AU  - Wilson, R. J.
AU  - Al-Saadi, J. A.
AU  - Amodei, H.
AU  - Chiba, M.
AU  - Coy, L.
AU  - de Grandpré, J.
AU  - Eckman, R. S.
AU  - Fiorino, M.
AU  - Grose, W. L.
AU  - Koide, H.
AU  - Koshyk, J. N.
AU  - Li, D.
AU  - Lerner, J.
AU  - Mahlman, J. D.
AU  - McFarlane, N. A.
AU  - Mechoso, C. R.
AU  - Molod, A.
AU  - O'Neill, A.
AU  - Pierce, R. B.
AU  - Randel, W. J.
AU  - Rood, R. B.
AU  - Wuh, F.
PY  - 2000
TI  - The GCM-Reality Intercomparison Project for SPARC (GRIPS): Scientific issues and initial results
JA  - Bull. Amer. Meteorol. Soc.
VL  - 81
SP  - 781
EP  - 796
DO  - 10.1175/1520-0477(2000)081%3C0781%3ATGIPFS%3E2.3.CO;2
ER  -

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