The ISIMIP2b scenarios are designed to elicit the contribution of climate change to impacts arising from low-emissions climate-change scenarios. Pre-industrial control runs are included to facilitate statistical comparison with a no-climate-change case.

The ISIMIP2b protocol covers several new sectors, including tropical cyclones, temperature-related mortality and lakes.

The scientific rationale for the scenario design is documented in a GMD discussions paper by Frieler, et al.

Important information about preparing your simulation files

  • Please read the data and co-authorship policy and register your model for ISIMIP2b here.
  • Information about which input data are available in ISIMIP2b, can be found here.
  • Basic analysis of global-mean-temperature levels in the ISIMIP2b climate data can be found here.

ISIMIP2b Protocol Changes

Aug. 8, 2019

The sector name has been changed to reflect that not only infrastructure is impacted by rising mean and extreme sea levels.

Aug. 8, 2019

The information from this chapter was moved completely to chapter 1 (“Scenario design”).

Aug. 8, 2019

The optional experiment IX was a simulation to test the sensitivity of the improved bias-adjustment and statistical downscaling method that will be used in ISIMIP3. Due to the relatively large effort required to process the GCM data with the new methodology (for all GCMs and all time periods) and the low interest by modellers to run the experime ...

Aug. 8, 2019

The reference to publication describing the new bias-correction method for ISIMIP3 has been added.

Aug. 8, 2019

A description of the individual bioenergy crops from MAgPIE has been added.