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Comparing_CROP_dataset_with_default.md

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Comparison of surface dataset and LUT used for CROP vs. default BGC simulation

Creation of land use timeseries for CROP simulation

  1. Created by combining 17 pft LUT landuse.timeseries_360x720cru_hist_simyr1850-2015_c180220.nc and NCAR's 78 pfts LUT landuse.timeseries_360x720cru_hist_78pfts_simyr1850-2015_c170428.nc.
  2. PCT_CROP and PCT_NAT_PFT were updated based on NCAR LUT.
  3. PCT_CFT and FERTNITRO_CFT were created based on NCAR LUT.
  4. Steps used for creating the CROP land use timeseries

Surface dataset creation for BGC crop simulation with GSWP3 forcing:

  • surfdata_360x720cru_50pfts_simyr1850_c230114.nc:
    • Created using mksurdata tool
    • 1850 values updated using landuse timeseries (landuse.timeseries_360x720cru_hist_50pfts_simyr1850-2015_c220216.nc)
  • surfdata_360x720cru_50pfts_simyr1850_c230518.nc
    • Few negative PCT_NATVEG in the surface dataset listed in above step were causing the cbalance error. These were resolved in this dataset
  • surfdata_360x720cru_50pfts_simyr1850_c230615.nc
    • Added values of APATITE_P , LABILE_P , OCCLUDED_P , SECONDARY_P.
    • These values were copied from surfdata_0.5x0.5_simyr1850_c211019.nc

Surface dataset creation for BGC crop simulation with WCv2 forcing:

  • surfdata_0.5x0.5_50pfts_simyr1850_c230808.nc
    • All dimensions and variables copied from surfdata_0.5x0.5_simyr1850_c211019.nc except those containing containing cft, natpft, and lsmpft.
    • These were copied from rotated surfdata_360x720cru_50pfts_simyr1850_c230615.nc.

Comparison of CROP surface dataset with default dataset

  1. Comparing percentage cropland area
  2. Comparing percentage natural vegeation land unit
  3. Comparing percentage pf PFT=0 on natural vegetation landunit
  4. Comparing percentage pf PFT=1 on natural vegetation landunit
  5. Comparing percentage pf PFT=2 on natural vegetation landunit
  6. Comparing percentage pf PFT=3 on natural vegetation landunit
  7. Comparing percentage pf PFT=4 on natural vegetation landunit
  8. Comparing percentage pf PFT=5 on natural vegetation landunit
  9. Comparing percentage pf PFT=6 on natural vegetation landunit
  10. Comparing percentage pf PFT=7 on natural vegetation landunit
  11. Comparing percentage pf PFT=8 on natural vegetation landunit
  12. Comparing percentage pf PFT=9 on natural vegetation landunit
  13. Comparing percentage pf PFT=10 on natural vegetation landunit
  14. Comparing percentage pf PFT=11 on natural vegetation landunit
  15. Comparing percentage pf PFT=12 on natural vegetation landunit
  16. Comparing percentage pf PFT=13 on natural vegetation landunit
  17. Comparing percentage pf PFT=14 on natural vegetation landunit

Comparison of CROP LUT with default LUT

  1. Time series comparing total cropland area