http://bolin.su.se/data/zhang-2023-holocene-vegetation-1 Qiong Zhang, Jie Chen Bolin Centre Database 2023 Datafile Atmosphere Climate simulation Mid-Holocene Preindustrial Vegetation feedback EC-Earth LPJ-GUESS Earth science services > Models > Coupled climate models Qiong Zhang 2023-04-24T14:11:30+00:00 English 1 The dataset contains Earth system model results from EC-Earth3 and LPJ-GUESS presented in the study by Chen et al. (2023). ##### Model configuration * Time periods: PI (200 year time slice) and MH (6 ka) (200 year time slice) * model configuration: EC-Earth3-LR, EC-Earth3-veg-LR, LPJ-GUESS * Horizontal resolution: ~1.125° (~125 km) For PI and 6 ka, EC-Earth is run with two different configurations: * PI_orb: pre-industrial boundary conditions with prescribed vegetation (EC-Earth-LR configuration) * PI_veg: pre-industrial boundary conditions with dynamic vegetation (EC-Earth-Veg-LR configuration) * 6k_orb: mid-Holocene boundary conditions with prescribed vegetation (EC-Earth-LR configuration) * 6k_veg: mid-Holocene boundary conditions with dynamic vegetation (EC-Earth-Veg-LR configuration) For LPJ-GUESS simulation, different configurations: * PI_offline: atmospheric variables from PI_veg simulation * PREC_ALL: annual precipitation increases 40% based on PI_veg simulation * PREC_JJA: summer precipitation increases 40% based on PI_veg simulation * TEMP_ALL: summer and autumn temperature increase 1.5 and winter and spring temperature decreases 1.5°C based on PI_veg simulation * TEMP_JJASON: summer and autumn temperature increase 1.5 °C % based on PI_veg simulation * TEMP_DJFMAM: winter and spring temperature decrease 1.5 °C % based on PI_veg simulation Available data Annual data for standard meteorological variables include surface air temperature, albedo and radiation. Vegetation data such as dominant vegetation types and vegetation covers. The analyses are based on the calculation of the difference between the simulations. The visualized data in the publication are the differences (or changes). [ETOPO5](https://doi.org/10.7289/V5D798BF) is global 5 arc-minute gridded global relief data (ocean depth and land elevation) from the US National Geophysical Data Center (NGDC). Here we regridded it to 0.5° resolution. File type: NetCDF-3 ##### List of data files * `EC-Earth.albedo_diff.nc` * Variable: albedo – surface albedo ((6k_veg - PI_veg) - (6k_orb - PI_orb)) * `EC-Earth.div200_diff.nc` * Variable: div – divergence ((6k_veg - PI_veg) - (6k_orb - PI_orb)) * `ETOPO5.720x360.nc` * Variable: elev – global elevation * `EC-Earth.high_veg_cover_diff.nc` * Variable: veg_cover – high vegetation cover (forest cover; 6k_veg - PI_veg) * `LPJ-GUESS.high_veg_cover_diff.nc` * Variable: veg_cover1 – high vegetation cover (PREC_ALL - PI_offline) * veg_cover2 – high vegetation cover (PREC_JJA - PI_offline) * veg_cover3 – high vegetation cover (TEMP_ALL - PI_offline) * veg_cover4 – high vegetation cover (TEMP_JJASON - PI_offline) * veg_cover5 – high vegetation cover (TEMP_DJFMAM - PI_offline) * `EC-Earth.ssr_diff.nc` * Variable: ssr – surface net shortwave radiation ((6k_veg - PI_veg) - (6k_orb - PI_orb)) * `EC-Earth.tas_annual_diff.nc` * Variable: tas_ALL – annual mean surface air temperature (6k_veg - PI_veg) * tas_ORB – annual mean surface air temperature (6k_orb - PI_orb) * tas_VEG – annual mean surface air temperature ((6k_veg - PI_veg) - (6k_orb - PI_orb)) * `EC-Earth.temp_adv_diff.nc` * Variable: advT – surface air temperature advection ((6k_veg - PI_veg) - (6k_orb - PI_orb)) * uas – surface zonal wind (10 m; (6k_veg - PI_veg) - (6k_orb - PI_orb)) * vas– surface meridional wind (10 m; (6k_veg - PI_veg) - (6k_orb - PI_orb)) * `EC-Earth.total_LAI_diff.nc` * Variable: LAI – total leaf area index (6k_veg - PI_veg) * `EC-Earth.tran_diff.nc` * Variable: tran – transpiration (6k_veg - PI_veg) * `EC-Earth.vegetation_type.MH.nc` * Variable: tv – dominant vegetation type (6k_veg) * `EC-Earth.vegetation_type.PI.nc` * Variable: tv – dominant vegetation type (PI_veg) Detailed information on model experiment setup and evaluation for mid-Holocene and pre-industrial simulations with EC-Earth3 can be found in Zhang et al. (2021). More information of the climate model simulations can also be found in the related dataset [Simulations for mid-Holocene and pre-industrial climate with EC-Earth3 model — selected data for a study on vegetation feedback](https://bolin.su.se/data/zhang-2022-holocene-vegetation-1). For the other variables in simulations beyond this research, please contact [Qiong Zhang](mailto:qiong.zhang@natgeo.su.se).