MAgPIE - An Open Source land-use modeling framework

changed

• 13_tc added switch to ignore historic tau patterns in historic time steps (new default)
• 16_demand Moved most of cropping related set definitions (k, kve, kcr) from 16_demand to 14_yield
• 32_foresty Added option to choose a rotation length calculation criteria
• 35_natveg Calculation of land protection policies revised and moved from presolve.gms to preloop.gms
• 38_factor_costs Realization sticky_feb18 extended to differentiate capital requirements between regions and their specific development status (GDP) in each time step of the magpie run. The changes in the sticky realization also include an additional switch so it can be operated as dynamic (change of each region capital share at each time step) or free (capital shares equal to zero and equivalent to the fixed_per_ton_mar18 realization). Bugfix in the yearly update of the variable input requirements. Addition of the time dimension and clean up of names of parameters used in the realization. Removal of the management factor (this factor was not being used, it was being cancelled out in previous calculations). Correction of the costs, they are given in 05USDppp.
• 39_landconversion lower costs for expansion of forestry land
• 58_peatland Peatland area is initialized in 1995 based on levels for the year 2015, and hold fixed depending on s58_fix_peatland. This provides a better proxy for peatland area and associated GHG emissions for the historic period, which where assumed zero in previous versions.
• 80_optimization nlp_par parallelizes now on superregional level h instead of regional level i as before.
• script Added forestry run script which used LPJmL addon
• script New standard for cluster to region mapping (rds-files) is used in all scripts. If old spam files are provided by input data, rds-mapping file is created.
• script updated test run script. Update of the sticky run script.
• start scripts improved function for GAMS set creation from R and outsourced it to package gms
• inputs Changed file format from cs2 to cs2b for cellular input files with a single data column
• scenario_config added RCPs as columns for use with setSceanrio function. This required the addition of "gms$" in the 1st column.

• 73_timber Added construction wood demand scenarios based on Churkina et al. 2020
• script(s) Added scripts to replicate runs for Mishra et al. 2021 (in review : https://doi.org/10.5194/gmd-2021-76)
• 13_tc Added new interfaces for tau factor of the previous time step (pcm_tau)
• 14_yield Added new realization managementcalib_aug19 that is able to calibrate yield data coming from uncalibrated crop models (e.g. LPJmL yields for unlimited N supply). The yield calibration is either a purely multipicative factor or is limited to additive change in case of a underestimated FAO yield by the initial crop model yields (based on the switch s14_limit_calib). For pastures spillover of crop yield increases due to technological change from the previous time step are allowed and can be scaled using s14_yld_past_switch.
• 20_processing Added new almost identical realization that excludes a calibration of the oil crop demand for oils (Note: old realization can be removed, when old yield realizations are deleted).
• 30_crop Added new realization endo_apr21. The realisation includes new input data for available cropland and a new switch c30_marginal_land, which provides different options for including marginal land as cropland. Furthermore, a given share of the available cropland can be set aside for the provisioning of natures contribution to people and to promote biodiversity. The new switches s30_set_aside_shr and c30_set_aside_target are included to specify the share that should be set aside and the target year.
• 30_crop Added new interface parameter historic croparea (fm_croparea)
• 30_crop Added new option policy_countries30 for country specific set aside share
• 35_natveg Added new option "FF+BH" for protected areas.
• 35_natveg Added new option policy_countries35 for country specific land protection
• 38_factor_costs Added scaling factors for improving model run time
• 39_landconversion new realization devstate in which global land conversion costs are scaled with regional development state (0-1)
• 41_area_equipped_for_irrigation Added switch for using different input data including new LUH2v2 consistent initialisation pattern.
• 41_area_equipped_for_irrigation Added scalar for depreciation rate that depreciates certain area in every timestep, defined by switch in config.
• 58_peatland Added option for one-time and recurring costs of peatland degradation (USD05MER per ha)
• calibration run has two new features: 1. Upper bound to cropland factor can be added (crop_calib_max). 2. Best calibration factor (factor with the lowest divergence) can be picked individually for each regions based on all calibration factors calculated during the calibration run iteration (best_calib).
• disaggregation Added new disaggregation script that is in line with new crop realisation and can account for cropland availabilty on grid level during disaggregation (see interpolateAvlCroplandWeighted() in package luscale for further details).
• sets added superregional layer h as additional spatial layer and moved constraints in 13_tc and 21_trade partly to the superregional level.

• 13_tc Removed disfuctional setting c13_tccost = "mixed"
• core removed sets ac_young and ac_mature (no longer needed due to changes in 44_biodiversity)

• 32_foresty BII coefficients for CO2 price driven afforestation
• 32_foresty growth curve CO2 price driven afforestation
• 32_foresty NPI/NDC afforestation infeasibility
• 32_foresty Correct distribution from LUH data to plantations and ndcs
• 35_natveg option to fade out damage from shifting agriculture by 2030
• 44_biodiversity ac0 included in pricing of biodiversity loss