We investigate the ability of viscous-plastic (VP) sea-ice model s with an elliptical yield curve and normal flow r ule to reproduce the shear and divergence distribu tions derived from the RADARSAT Geophysical Proces sor System (RGPS). In particular\, we reformulate the VP elliptical rheology to allow independent ch anges in the ice compressive\, shear and isotropic tensile strength parameters (P*\, S*\, T* respect ively) in order to study the sensitivity of the de formation distributions to changes in the ice mech anical strength parameters. Our 10-km VP simulatio n with standard ice mechanical strength parameters P&lowast\;= 27.5 kNm&minus\;2 \, S&lowast\; = 6.9 kNm&minus\;2\, and T&lowast\; = 0 kNm&minus\;2 (e llipse aspect ratio of e = 2) does not reproduce t he large shear and divergence deformations observe d in the RGPS deformation fields\, and specificall y lacks well-defined\, active linear kinematic fea tures (LKFs). Probability density functions (PDFs) for the shear and divergence of are nonetheless n ot Gaussian. Simulations with a reduced compressiv e or increased shear strength are in good agreemen t with RGPS-derived shear and divergence PDFs\, wi th relatively more large deformations compared to small deformations. The isotropic tensile strength of sea ice on the other hand does not significant ly affect the shear and divergence distributions. When considering additional metrics such as the ic e drift error\, mean ice thickness fields\, and sp atial scaling of the deformations\, our results su ggest that reducing the ice compressive strength i s a better solution than increasing the shear stre ngth when performing Arctic-wide simulations of th e sea-ice cover with the VP elliptical rheology. LOCATION:Seminar Room 1\, Newton Institute CONTACT:info@newton.ac.uk END:VEVENT END:VCALENDAR