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ISIMIP2a Protocol Changes

ISIMIP2a Protocol Changes

Renamed some files and models from the Agriculture sector

March 3, 2023

To publish the 2a agriculture data, we had to rename some files / models in order to guarantee consistency between data, publications and protocol concerning PET equations. Specifically, we changed the abbreviations for the PET equations used. For details, please refer to sections 10.3 and 10.4 of the ISIMIP2a extended protocol ...

ISIMIP2a-extended protocol released

March 3, 2020

We are happy to announce the release of the ISIMIP2a-extended simulation protocol. This protocol is very similar to the ISIMIP3a protocol which we suggest to prioritize. However, we still encourage all impact modeling teams to consider performing simulations according to this ISIMIP2a-extended protocol – even if you have already contributed simu ...

Erratum for: '"man" and "nat" scenarios for forest sectors renamed to nosoc and varsoc'

Oct. 28, 2019

The correct renaming is "varsoc" instead of "man", and "nosoc" instead of "nat".Erratum for: '"man" and "nat" scenarios for forest sectors renamed to nosoc and varsoc'

Changes to file-naming conventions

March 5, 2018

The file-naming conventions for output file has been updated to include a tag to indicate the target climate data set for the bias correction. The standard file name now has the form: <modelname>_<obs>_<bias-correction><clim_scenario>_<socio-econ-scenario>_<sens-scenarios>_<variable>_<region>_ ...

"man" and "nat" scenarios for forest sectors renamed to nosoc and varsoc (Erratum)

March 5, 2018

To maintain consistency with other sectors, the "man" and "nat" scenarios for forest sectors have been renamed to "nosoc" and "varsoc" respectively.Erratum in https://www.isimip.org/protocol/protocol-changes/erratum-man-and-nat-scenarios-forest-sectors-renamed-nosoc-and-varsoc/

Addition of references for input-data sets

June 13, 2017

References for the four observational climate data sets for ISIMIP2a have been added to table 3.

Changes & additions to forest-sector protocl

May 22, 2017

Changes include updates to the management schedules (table 26) and correction of the definition of output variables.

File names to include bias-correction specifier

March 8, 2017

The file names should follow this convention for the historical validation runs:<modelname>_<obs>_<bias-correction>_<clim_scenario>_<socio-econ-scenario>_<sens-scenarios>_<variable>_<region>_<timestep>_<start-year>_<end-year>.nc4The specifier can take two forms: "wfd" (bias correc ...

Updates to forest protocol

March 3, 2017

The forest protocol has been updated to reflect the latest simulation specifications, including information about accessing input data.

Clarification of CO2 concentration input data

Jan. 12, 2017

The historical CO2 concentrations are also provided in the input data archive (historical_CO2_annual.txt) and are based on time series of global atmospheric CO2 concentrations from Meinshausen, Raper, & Wigley (2011) for 1765-2005 and Dlugokencky & Tan (2014) from 2006-2013.

Use of variable-identifier in file names for forest, biomes & permafrost sectors

Jan. 12, 2017

The <variable> identifier in the file name of your output data can also be used for information about the plant functional type (pft) in the biomes and permafrost sectors. The pft/species naming is model-specific and hence has to be reported in the impact-model database (see www.isimip.org/impactmodels) ...

Streamlining of entire protocol

Nov. 30, 2016

The entire ISIMIP2a protocol has now been streamlined to only include vital information pertaining to the simulation design. For technical reasons, the sector-specific protocol information have now been placed in individual chapters.

Forests: management and regeneration rules

Nov. 30, 2016

Managerment and regeneration rules have been updated for the forest sector.

Clarification of use CO2 data

Sept. 29, 2016

Section 5.3: Spin-up procedure for cross-sectoral integration runsOld: "For CO2 concentrations use time‐varying historical data (as in the spin‐up for the historical simulations) up until 2005, and switch to the RCP CO2 concentration data in 2006." New: "For CO2 concentrations use time‐varying historical data (as in the spin‐up for the historic ...

HYDE3.1 should be HYDE 3

Aug. 25, 2016

The historical land-use pattern provided is based on historical trends in the HYDE3 data set, not HYDE3.1, as eronneously stated in the protocol. The correct data set should be referenced when referring to the land-use patterns in papers. Change in section 4.1.3, 4.2.3 and in sector-specific tables ...