mgrover1 / CMIP5_to_WRF

PGW Downscaling Workflow for CMIP5/WRF

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Dynamical Downscaling Using Pseudo Global Warming Method: A Case Study"

Calculates Climate Change Deltas Following the methodology from Trapp and Hoogewind (2016)

Figure1_Trapp_Hoogewind Figure 1 from Trapp and Hoogewind (2016)

Figure2_Trapp_Hoogewind Figure 2 from Trapp and Hoogewind (2016)

Summary Climate Delta Summary of Climate Delta Calculation - this process is followed for all variables listed below

CMIP5 Models Used - Downloaded from CMIP5 Data Archive

  • MIROC5
  • GFDL
  • NCAR CCSM4

All hourly data are downloaded and stored in the following directory on Keeling /data/meso/a/mgrover4/ with directories using naming convention model_6hour

Monthly data are stored in /data/jtrapp/a/jtrapp/CMIP5 in directories MIROC, GFDL, or NCAR

Overall Workflow

  • (Optional) Download CMIP data from esgf

    • See shell scripts within the data directories
    • Data for May and March are already included
  • Calculate Climate Change Deltas

    • Notebooks Used
    • Notebooks can be found on Keeling in /data/keeling/a/mgrover4/b/CMIP5_to_WRF/Notebooks/
  • Add Climate Deltas to NAM fields

  • Export to GRIB file to be used by WRF

Climate Change Delta Variables

  • 3D Atmos (6 hourly, linearly interpolated to 3 hourly)

    • UA (U-Component of Wind at Isobaric Levels)
    • VA (V-Component of Wind at Isobaric Levels)
    • TA (Temperature of Atmosphere at Isobaric Levels)
    • HUS (Specific Humidity at Isobaric Levels)
  • 2-D (Most data 3 hourly, some 6 hourly data were interpolated to 3 hourly)

    • UAS (U-Component of Wind at 10m Above Surface)
    • VAS (V-Component of Wind at 10m Above Surface)
    • TAS (Temperature of Wind at 2m Above Surface)
    • HUSS (Specific Humidity at 2m Above Surface)
    • PS (Pressure at Surface)
    • PSL (Mean Sea-Level Pressure at Surface)
    • TS (Temperature at Surface (Skin Temperature))
  • Soil/Surface (Monthly data)

    • TSL (Temperature at Soil Levels) - Land Mask Added
    • MRLSL (Specific Humidity at Soil Levels) - Land Mask Added

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PGW Downscaling Workflow for CMIP5/WRF


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