GRISLI has been developed by Ritz et al. (2001) at LGGE (CNRS, France). It is able to simulate both grounded and floating ice. The grounded part uses the Shallow Ice Approximation (SIA, Hutter, 1983) whereas ice shelves and ice streams are simulated following the Shallow Shelf Approximation (SSA, Macayeal, 1989). The ice shelf formulation in GRISLI allows for a more realistic calculation of the ice sheet growth, and particularly of the advance of ice onto the shallow continental shelves in both hemispheres high latitudes. GRISLI has been validated over Antarctica, Greenland and successfully applied to study the inception of ice sheets during the last glacial cycle.
At CMCC, GRISLI has recently been used to simulate the glacial inceptions of the last two glacial cycles and the penultimate glaciation in the framework of the climate service in contract with the Swedish Nuclear Fuel and Waste and Management Company. It is also used to simulate the future evolution of Greenland runoff and Antarctica and past ice-sheets ice-shelves interaction with ocean.Research Papers
- Hutter, K. (1983). Theoretical glaciology: material science of ice and the mechanics of glaciers and ice sheets (Vol. 1). Springer.
- MacAyeal, D. R. (1989). Large‐scale ice flow over a viscous basal sediment: Theory and application to ice stream B, Antarctica. Journal of Geophysical Research: Solid Earth (1978–2012), 94(B4), 4071-4087.
- Ritz, C., Rommelaere, V., & Dumas, C. (2001). Modeling the evolution of Antarctic ice sheet over the last 420,000 years: Implications for altitude changes in the Vostok region. Journal of Geophysical Research: Atmospheres (1984–2012), 106(D23), 31943-31964.