Simulation of the spatiotemporal variability of the World Ocean sea surface hight by the INM climate models
- 34 Downloads
The results of simulations of the World Ocean sea surface hight (SSH) in by various versions of the Climate Model of the Institute of Numerical Mathematics, Russian Academy of Sciences, are compared with the CNES-CLS09 fields of the mean dynamic topography (deviation of the ocean level from the geoid). Three models with different ocean blocks are considered which slightly differ in numerical schemes and have various horizontal spatial resolution, i.e., the INMCM4 model, which participated in the Climate Model Intercomparison Project (CMIP Phase 5, resolution of 1° × 1/2°); the INMCM5 model, which participates in the next project, CMIP6 (resolution of 1/2° × 1/4°); and the advanced INMCM-ER eddy-resolving model (resolution of 1/6° × 1/8°). It is shown that an increase in the spatial resolution improves the reproduction of ocean currents (with Agulhas and Kuroshio currents as examples) and their variability. A probable cause of relatively high errors in the reproduction of the SSH of Southern and Indian oceans is discussed.
KeywordsWorld Ocean sea surface hight INM climate model CMIP5 CMIP6 eddy-resolving ocean model
Unable to display preview. Download preview PDF.
- 2.V. B. Zalesny, Modeling Large-Scale Motions in the World Ocean (Department of Numerical Mathematics, USSR Acad. Sci., Moscow, 1984) [in Russian].Google Scholar
- 3.R. C. Malone, R. D. Smith, and J. K. Dukowicz, “New numerical methods for ocean modeling on parallel computers,” Los Alamos Sci., No. 21, 210–214 (1993).Google Scholar
- 4.A. S. Sarkisyan, Numerical Analysis and Prediction of Sea Currents (Gidrometeoizdat, Leningrad, 1977) [in Russian].Google Scholar
- 7.M.-H. Rio, P. Schaeffer, F. Hernandez, et al., “The estimation of the ocean mean dynamic topography through the combination of altimetric data, in-situ measurements and GRACE geoid: From global to regional studies,” in Proceedings of the GOCINA International Workshop (Luxembourg, 2005).Google Scholar
- 8.M.-H. Rio, P. Schaeffer, G. Moreaux, et al., “A new mean dynamic topography computed over the global ocean from GRACE data altimetry and in-situ measurements,” in OceanObs09 Symposium, 21–25 September, 2009 (Venice, 2009). http://wwwavisooceanobscom/ fr/donnees/produits/produits-auxiliaires/mdt/indexhtml.Google Scholar
- 10.N. A. Dyansky, V. Ya. Galin, A. V. Gusev, et al., “The model of the earth system developed at the INM RAS,” Russ. J. Mumer. Anal. Math. Modell. 25 (5), 419–429 (2010).Google Scholar
- 13.E. M. Volodin, N. A. Diansky, and A. V. Gusev, “Simulation and prediction of climate changes in the 19th to 21st centuries with the Institute of Numerical Mathematics, Russian Academy of Sciences, model of the Earth’s climate system,” Izv., Atmos. Ocean. Phys. 49 (4), 347–366 (2013).CrossRefGoogle Scholar