emul.Sicopolis: SICOPOLIS ice sheet model emulator

In stilt: Separable Gaussian Process Interpolation (Emulation)

Description

Sample emulator for ice mass loss from the 5-parameter SICOPOLIS ice sheet model ensemble output

Usage

data(emul.Sicopolis)

Format

This is a standard emulator list object, containing standard emulator components as described in 'emulator' function. The emulated quantity is Greenland ice mass loss relative to year 2003 (Gt).

Details

The emulator was fit using all five parameter covariates, and the time covariate. The beta parameters are the multiple linear regression estimates. The model ensemble was generated by Patrick Applegate. The ensemble varies five important ice sheet model parameters: Flow Enhancement Factor, Basal Sliding Factor, Geothermal Heat Flux, Snow PDD Factor, and Ice PDD Factor.

Source

Applegate, P. J., Kirchner, N., Stone, E. J., Keller, K., and Greve, R., 2012, An assessment of key model parametric uncertainties in projections of Greenland Ice Sheet behavior: The Cryosphere 6, 589-606.

Examples

# Plot the response surface as a function of snow PDD factor, and ice
# PDD factor at year 2500 (time index 661), while keeping other parameters
# at mid-range values
data(emul.Sicopolis)
## Not run: 
  rsurface.plot(emul=emul.Sicopolis, parind=c(4,5), parvals=c(3, 10, 50, NA, NA),
      tind=661, n1=5, n2=5)

## End(Not run)

stilt documentation built on May 2, 2019, 1:10 p.m.