Experiments

From Interactive System for Ice sheet Simulation
Jump to: navigation, search

The SeaRISE experiments seek to quantify the sensitivity of ice sheets to external environmental forcings. At the initial stage of the effort, three broad model type were considered. Experiments, along with descriptions of set-up, initialization, and control run can be found in these links: Category 1: Whole Ice Sheet, Category 2: Ice-Stream/Ice-Shelf,Category 3: Ice-Shelf/Ocean.

As the project evolved, category 2 and 3 were put aside, and the effort focussed on experiments for whole ice sheet models. These experiments were agreed by the SeaRISE community as representing the most effective approach to meeting the SeaRISE goal of informing the IPCC AR5 report. The sensitivity experiment are summarized in the figure below, and are organized as sets of experiments that perturb the ice sheet at a single boundary (upper surface, lower surface, or ocean perimeter), combination of single forcing experiments, and the R8 experiment. The later was designed to approximate the RCP8.5 scenario considered by the IPCC. The experimental set up for these SeaRISE experiments is described in Category 1: Whole Ice Sheet, and also explained in Bindschadler et al. (2013). These SeaRISE experiments were also carried out by a flowband model (see Parizek et al., 2013).

Model simulation of the SeaRISE sensitivity experiments are available for download from an FTP server. Contact sophie.nowicki-at-nasa.gov for information on how to obtain these model runs. The output fields are for 500 years (every 5 years for the Greenland ice sheet and 10 years for the Antarctic ice sheet), and on the horizontal grid corresponding to the master data set (See Present Day Antarctica and Present Day Greenland). Each modeler chose the grid size used for the simulation and there was no common way to interpolate the data back on the master data set.


Fig SeaRISE exp.jpg