MPI-ESM-1.2 output of LAMACLIMA work package 1 (WP1): idealized constant global cropland expansion with irrigation (IRR) under present-day environmental conditions - CFday

Guo, Suqi; Havermann, Felix; De Hertog, Steven; Luo, Fei; Manola, Iris; Thiery, Wim; Lejeune, Quentin; Schleussner, Carl-Friedrich; Pongratz, Julia; Seeberg, Gereon

MPI-ESM-1.2 output of LAMACLIMA work package 1 (WP1): idealized constant global cropland expansion with irrigation (IRR) under present-day environmental conditions - CFday

hdl:21.14106/f283092f3655407ddfb45e8ab51ff4b425f64077

Guo, Suqi et al.

Dataset

Summary: [ Derived from parent entry - See data hierarchy tab ]

This dataset contains MPI-ESM-1.2-LR output from the work package 1 (WP1) IRR scenario of idealized constant global cropland expansion with irrigation. Similar to the CROP scenario, the simulation branches from the 2014 CMIP6 historical concentration-driven simulation and spans 160 years (2015-01-01 to 2174-12-31), with anthropogenic (trace gases, aerosols, population density) and natural forcings (solar radiation, wildfire, lightning, natural aerosols) held constant at 2014 levels.
In the IRR scenario, irrigation water is added to those grid cells which were also changed to 100% cropland in the CROP scenario. Since there is no native irrigation scheme in JSBACH3.2, we have implemented a rather simple scheme as follows: The soil moisture of the first (0–0.065 m) and second
(0.065–0.319 m) soil layers (out of five) is filled at each simulation time step (20–30 min) to field capacity if the field capacity was not reached and if enough irrigation water is available in the irrigation water storage. Irrigation water is stored in a virtual reservoir at each time step when the reservoir drops below 0.2 m and is filled up with all available water from (surface) runoff and drainage during that time step. Generally, we ran the land model JSBACH3.2 with the following options:
- use_dynveg = false
- use_disturbance = true
- lcc_forcing_type = transitions
- lcc_scheme = 2
This approach mimics cropland expansion with irrigation across all vegetated, cropland and urban areas but avoids cropland being established in e.g. desert, high-altitude and tundra regions (unhospitable land). The checkerboard-like pattern, with its homogeneous distribution of changed and unchanged grid cells, allows the application of an established method to separate local and nonlocal biogeophyiscal as well as biogoechemical effects of this land management change to be compared to the scenario of cropland expansion without irrigation (CROP) (see Winckler et al., 2017 (doi: 10.1175/JCLI-D-16-0067.1), De Hertog et al., 2023 (doi: 10.5194/esd-14-629-2023), and Guo et al., 2025 (doi: 10.5194/esd-16-631-2025)).
Project: LAMACLIMA (Output of fully coupled Earth system model simulations for LAMACLIMA research project: four idealized constant global land-use scenarios (WP1) and two contrasting policy-relevant future mitigation land-use scenarios (WP4).)
Spatial Coverage: Longitude 0 to 360 Latitude -90 to 90
Temporal Coverage: 2015-01-01 to 2175-12-31 (proleptic_gregorian)
Use constraints: Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/)
Data Catalog: World Data Center for Climate
Access constraints: registered users
Size: 768.56 GiB (825232295585 Byte)
Format: NetCDF
Status: completely archived
Creation Date: 2025-11-13
Future Review Date: 2035-11-13
Download Permission: Please login to check permission and download options

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Cite as: [ Derived from parent entry - See data hierarchy tab ]
Guo, Suqi; Havermann, Felix; De Hertog, Steven; Luo, Fei; Manola, Iris; Thiery, Wim; Lejeune, Quentin; Schleussner, Carl-Friedrich; Pongratz, Julia; Seeberg, Gereon (2025). MPI-ESM-1.2 output of LAMACLIMA work package 1 (WP1): idealized global land-use scenarios, including cropland expansion, re-/afforestation, irrigation, wood harvest, and reference control. World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/LC_WP1_MP

BibTeX RIS

Variable	Aggregation	Unit
air_temperature CF	CFday	K
atmosphere_net_upward_convective_mass_flux CF	CFday	kg m-2 s-1
eastward_wind CF	CFday	m s-1
geopotential_height CF	CFday	m
lagrangian_tendency_of_air_pressure CF	CFday	Pa s-1
northward_wind CF	CFday	m s-1
relative_humidity CF	CFday	%
specific_humidity CF	CFday	1
surface_air_pressure CF	CFday	Pa
surface_downwelling_longwave_flux_in_air_assuming_clear_sky CF	CFday	W m-2
surface_downwelling_shortwave_flux_in_air_assuming_clear_sky CF	CFday	W m-2
surface_upwelling_shortwave_flux_in_air_assuming_clear_sky CF	CFday	W m-2
toa_incoming_shortwave_flux CF	CFday	W m-2
toa_outgoing_longwave_flux_assuming_clear_sky CF	CFday	W m-2
toa_outgoing_shortwave_flux CF	CFday	W m-2
toa_outgoing_shortwave_flux_assuming_clear_sky CF	CFday	W m-2

Parent

MPI-ESM-1.2 output of LAMACLIMA work package 1 (WP1): idealized constant global cropland expansion with irrigation (IRR) under present-day environmental conditions

Details

Parent project(s)

Output of fully coupled Earth system model simulations for LAMACLIMA research project: four idealized constant global land-use scenarios (WP1) and two contrasting policy-relevant future mitigation land-use scenarios (WP4).

[Entry acronym: LC_WP1_MP_IRRI_CFday] [Entry id: 5348724]