Data

From Interactive System for Ice sheet Simulation
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Contents

Overview

Data products used in the CISM efforts are available here. All data are encapsulated in the netCDF format, and conform to CF 1.3 naming conventions. On this page you will find

  • Present day Antarctica data sets consist of
    • Mean annual surface temperature
    • Ice thickness
    • Accumulation/ablation Rate
    • Ice surface elevation
    • Bed topography
    • Basal heat flux
    • Thickness mask
    • Interferometrically determined surface velocity
    • Melt rate estimate (Under Ross ice streams only)
    • Surface balance velocity


  • Present day Greenland data sets consist of
    • Ice thickness
    • Bed topography
    • Ice surface elevation
    • Precipitation
    • Basal heat flux
    • Mean annual near-surface(2m) air temperature
    • Surface balance velocity
    • Interferometrically determined surface velocity

More information about the data sources, projection, and grid are found below. Soon we will be adding data sets reflecting

  • Antarctica after a 125,000 year model spin-up (run to equilibrium with a climate forcing from ice core data).
  • Greenland after a 120,000 year model spin-up.
  • 95 years of climate forcing for Antarctica and Greenland.

NetCDF Viewers

All of our data is encapsulated in the netCDF format, and conform to CF 1.3 naming conventions. Compliance with these data standards helps ensure that the data are accessible on any platform, can be read with some ease, and that the data can be visualized with numerous packages. Some suggested viewers include

  • Ncview. Light weight and fast. Because it utilizes the X-Windows system is only available for Mac OS X and Linux. Will need to be compiled by the user.
  • IDV program that can be installed on Linux, Mac, or Windows operating systems. IDV requires some work to learn, but can produce impressive three dimensional combinations of data fields. Many of the images on this WIKI were produced from IDV.
  • ncBrowse is a Java application that provides flexible, interactive graphical displays of data and attributes from a wide range of netCDF data file conventions.

Data Sets

Archive

Archives of source data for the Antarctica and Greenland data sets are available. These archives contain the original data, and python scripts that create the netCDF input files. Some of these data are at greater resolution than the 5km spacing used in seaRISE input data files.

Present Day

Results of 125,000 Year Model Spinup

Future Climate for Forcing Experiments