Simulations from the LPJ-GUESS dynamic global vegetation model underlying the analysis in:
Halima Usman, Thomas A. M. Pugh, Anders Ahlström, Sofia Baig. Climate Change Projections of Terrestrial Primary Productivity over the Hindu Kush Himalayan Forests, Biogeosciences, 2021.

Authors: 
Halima Usman, National University of Science and Technology, Pakistan, halima_usman@hotmail.com,
Thomas A. M. Pugh, Lund University, Sweden and University of Birmingham, UK, thomas.pugh@nateko.lu.se,
Anders Ahlström, Lund University, Sweden, anders.ahlstrom@nateko.lu.se,
Sofia Baig, National University of Science and Technology, Pakistan, sofia.baig@iese.nust.edu.pk

For enquiries regarding these simulations, please contact A. Ahlström. For enquiries regarding the protocol and overall intercomparison please contact Anders Ahlström, anders.ahlstrom@nateko.lu.se
Outputs from the LPJ-GUESS dynamic global vegetation model (Ahlström et al., 2012) are provided for three historical-future simulations for the period 1851-2100, forced by bias-corrected climate from the CCSM4, MPI-ESM-LR and IPSL-CM5A-MR Earth system models (ESM). Two future climate scenarios are considered, RCP 2.6 and RCP 8.5. Simulations with potential natural vegetation everywhere (PNV, only for RCP 8.5) and with consideration of agricultural land use (LU), including transient changes were conducted. All simulations are at 0.5 x 0.5 degree spatial resolution. For information on the simulation protocol, please refer to Ahlström et al. (2012).
Files are provided as R raster (.grd and .gri) files. An R rasterfile dataset consists of a header file (.grd) and a sequential binary value data file (.gri). The header file (.grd) must be provided, while the accompanying data file (.gri) is automatically found in the folder. 

The first level of folders are labelled with names of the ESM used for forcing (CCSM4, MPI-ESM-LR, IPSL-CM5A-MR). Within these outputs there are 3 folders containing annual flux (CFLUX), annual carbon pool (CPOOL) and monthly primary productivity (Primary productivity) information. Each of these folders includes a file per climate scenario (RCP 2.6 or 8.5) and land-use set-up (PNV or LU). The contents of the files are as follows.

CFLUX (annual vegetation fluxes, defined as negative into vegetation)
- Veg (net primary productivity in established vegetation, NPP, kg C m-2 y-1)
- Est (carbon in newly established vegetation, kg C m-2 y-1, add to veg to get total NPP)
- Fire (Simulated disturbance type in LPJ-GUESS that results in vegetation mortality and emission of carbon from combusted biomass and litter, kg C m-2 y-1)
-Soil (The annual loss of carbon from an ecosystem associated with decomposition of litter and soil organic matter, kg C m-2 y-1)
-NEE (Net ecosystem exchange [of carbon], in LPJ-GUESS representing the balance between NPP, annually-accrued heterotrophic respiration and carbon emissions due to wildfire disturbance, kg C m-2 y-1, multiply with -1 to get Net Biome Productivity).

CPOOL (annual vegetation carbon pools)
-VegC (Sum of carbon allocated in leaves, sapwood, heartwood and fine roots , kg C m-2)
-SoilfC and SoilsC (decomposable soil carbon pools, kg C m-2, to get soil respiration rate in yr-1 do soil/(soilfC+soilsC)
-Litter (decomposable soil carbon pools, kg C m-2)
-Total (total ecosystem carbon, kg C m-2)

Primary productivity
- NPP (monthly NPP fluxes, kg C m-2 month-1
- GPP (monthly GPP fluxes, kg C m-2 month-1

References

Ahlström, A., Schurgers, G., Arneth, A. and Smith, B.: Robustness and uncertainty in terrestrial ecosystem carbon response to CMIP5 climate change projections, Environ. Res. Lett., 7(4), doi:10.1088/1748-9326/7/4/044008, 2012.

