Sentences with phrase «nonlinear ice sheet response»
Our atmosphere - ocean model shows that the freshwater spurs amplifying feedbacks that would accelerate ice shelf and ice sheet mass loss, thus providing support for our assumption of a nonlinear ice sheet response.
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Of course I can not prove that my choice of a ten - year doubling time for nonlinear response is accurate, but I am confident that it provides a far better estimate than a linear response for the ice sheet component of sea level rise under BAU forcing.
The science of ice melt rates is advancing so fast, scientists have generally been reluctant to put a number to what is essentially an unpredictable, nonlinear response of ice sheets to a steadily warming ocean.
What remains is a nonlinear response to insolation that involves CO2 and ice sheets.
For example, Overpeck et al. (2006), and Hansen (2007) suggest possibilities which could eventually lead to a nonlinear response from ice sheets — accelerating the current observed sea level rise.
The Greenland and Antarctic ice sheets have much larger masses and consequently much longer time constants, but there is already observational evidence of nonlinear response.