Following the release of the ISIMIP2b protocol, we are now pleased to announced the release of the first input-data package. These data will allow you to start work on all experiments in group 1 and group 2 (as described in the Figure 1 of the protocol). This includes experiments covering all pre-industrial and historical periods, and those future experiments for which human influences (land use etc.) are kept constant.
The climate data currently covers data from three GCMs (IPSL-CM5A-LR, GFDL-ESM2M and MIROC5; HadGEM2-ES data is planned for release in December/January), which have been bias corrected using improved versions of the ISIMIP Fast Track methods. A fact sheet describing the new bias correction can be found on the website here. At this stage there is only atmospheric data, but we are working on the 3D ocean data.
In addition to the climate data, the following time-varying input data are available, and where relevant, should be used to do the ISIMIP2b runs:
- Gridded population (urban/rural fractions to be released soon)
- National-level GDP
- Historical, gridded, crop-specific land-use data
- Reservoirs & dams
- N fertilizer use
- Nitrogen deposition
- Fishing intensity
- Sea-level rise
- Future, gridded, crop-specific land-use data
All data can be found on the DKRZ server in the /work/bb0820/data/ISIMIP2b/Input_ISIMIP2b folder, where the input data are sorted into the climate or human influences scenarios described in the protocol. You can see a listing of the input data folder structure here. In order to download data you need an account on the DKRZ server. If you don’t already have one, please contact Matthias Büchner (buechner@pik-potsdam.de).
The experiments should be conducted with the following priority:
1. All experiments for the climate data from the global climate model IPSL-CM5A-LR
2. All experiments using the other GCM data.
Please note that we have corrected some mistakes in the protocol compared to the version sent out about a week ago. You can always find the most recent version on the website under ‘protocol’, and changes are documented in the table ISIMIP2b protocol changes log.
As always, please get in touch with any questions and comments.
Best wishes from Potsdam on behalf of all those who’ve worked hard to put the input data together,
Lila.
--
Dr Lila Warszawski
Project Manager, the Inter-Sectoral Impact Model
Intercomparison Project (ISIMIP)
Potsdam Institute for Climate Impact Research (PIK)
D-14412 Potsdam
+49-(0)331-288-2497
lila.warszawski@pik-potsdam.de
--
Dr Lila Warszawski
Project Manager, the Inter-Sectoral Impact Model
Intercomparison Project (ISIMIP)
Potsdam Institute for Climate Impact Research (PIK)
D-14412 Potsdam
+49-(0)331-288-2497
lila.warszawski@pik-potsdam.de
