Adjustment of surface atmospheric variables - HiroyukiTsujino/JRA55-do GitHub Wiki

Adjustment of surface air temperature and specific humidity

Air temperature

  • In jra55_org_grid_calib directory, execute the following shell script.
    • $ ./calib_tmp2m_v1_2_interannual_latest_exec.sh 2019 1 1 2020 1 12 # (Specify the date next of the last data)
    • Output → ../linkdir/work/jra55fcst_v1_2_3hr_tmp2m_TL319r

Specific humidity

  • In jra55_org_grid_calib directory, execute the following shell script.
    • $ ./calib_sph2m_v1_2_interannual_latest_exec.sh 2019 1 1 2020 1 12 # (Specify the date next of the last data)
    • Output → ../linkdir/work/jra55fcst_v1_2_3hr_sph2m_TL319r

Compute equivalent neutral wind

Strategy

  • Use adjusted air temperature and specific humidity.
    • ../linkdir/work/jra55fcst_v1_2_3hr_tmp2m_TL319r
    • ../linkdir/work/jra55fcst_v1_2_3hr_sph2m_TL319r
  • Equivalent neutral wind is computed even for land grid.
  • As the surface temperatures, COBE-SST is used for sea surface, brightness temperature is used on sea ice and land.
  • Over sea ice, brightness temperature is shifted by the same amount as the air temperature is adjusted (This is to retain stability in the boundary layer).

Computation of the equivalent neutral wind

  • In jra55_org_grid_anl directory, execute the following shell scripts.
  • $ ./jra55fcst_filt_v1_2tq_neutral_wind_exec.sh 2019 2019
  • $ ./jra55fcst_filt_v1_2tq_neutral_wind_exec.sh 2020 2020 1 190 # (first day, last day (of year) of the period when data are available)
  • Output → ../linkdir/work/jra55fcst_filt_v1_2tq_3hr_TL319r

Adjustment of the equivalent neutral wind

  • In jra55_org_grid_calib directory, execute the following shell script.
    • $ ./calib_wind_v1_3_interannual_latest_exec.sh 2019 1 1 2020 1 12 # (Specify the date next of the last data)
    • Output ⇒ ../linkdir/work/jra55fcst_filt_v1_3_3hr_wind_TL319r
  • Note: They are still equivalent neutral winds.

Shift the data to 10 m actual wind, temperature, specific humidity

  • In jra55_org_grid_anl directory, execute the following shell scripts.
    • $ ./jra55fcst_filt_v1_3_actual_wind_exec.sh 2019 2019
    • $ ./jra55fcst_filt_v1_3_actual_wind_exec.sh 2020 2020 1 11 # (first day, last day (of year) of the period when data are available)
    • Output → ../linkdir/work/jra55fcst_v1_3_prod1_3hr_TL319r

Remap variables from the reduced TL319 grid to the normal TL319 grid

  • In jra55_org_grid_product directory, execute the following shell scripts.

    • $ ./red2reg_exec_v1_3.sh 2019 2019
    • $ ./red2reg_exec_v1_3.sh 2020 2020 1 11 # (first day, last day (of year) of the period when data are available)

  • Note that red2reg_exec_v1_3.sh executes the following two shell scripts.

    • red2reg_exec_tmp_sph_v1_3.sh (tmp10m,sph10m)

      • Output ⇒ ../linkdir/work/jra55fcst_v1_3_prod1_3hr_TL319

    • red2reg_exec_wind_v1_3.sh (u10m,v10m)

      • Output ⇒ ../linkdir/work/jra55fcst_v1_3_prod1_3hr_TL319