2023-06-19 Hai-Tien Lee
This is changes log for uvi.v2.0 package which is modified from uvi.v1.1.1

Objectives
1. use of GEFS aerosol forecasts
2. increase temporal resolution from 3-hrly to 1-hrly
3. increase sparial resolution from 0.5deg to 0.25deg

fix/global_orography_0p25.dat
   new topography data for 0.25deg grid
   create fix/global_orography_0p25.dat based on 'hgt_sfc_0p25.out'
   by create_orography_0p25.pro
   
sorc/uv_index.fd/uv_index_grid_hourly_aer.f 
   calculate UVI with 0.25deg fields for both Input and Output
      old: PARAMETER (IGRD=1440, JGRD=361, NXY=IGRD*JGRD)
      new: PARAMETER (IGRD=1440, JGRD=721, NXY=IGRD*JGRD)
      loop reference 1440-> IGRD, 361->JGRD (two loops)

sorc/uv_index.fd/grib.f
   nx=1440,ny=721
   IGRID=193 (193 for 0.25 deg; 4 for 0.5)

sorc/uv_uvlist.fd/uv_uvlist_hourly.f 
   change index calculation for 0.25 grids (was 0.5)
      old: parameter(nx=720,ny=361,nxy=nx*ny)
      new: parameter(nx=1440,ny=721,nxy=nx*ny)
   old (two places):
      STJ = 1.0 + 2.0*RLAT
      STI = 1.0 + 2.0*RLON
   new:
      STJ = 1.0 + 4.0*RLAT
      STI = 1.0 + 4.0*RLON

sorc/uv_uvlist.fd/flip_field.f 
      parameter (nx=1440, ny=721)
     
sorc/uv_uv24fr.fd (directory renamed to take over the name)
   revised to correctly assign hourly forecasts to the 0-180deg East hemisphere
   for noontime composite purpose

sorc/uv_uv24hr.fd/uv_uv24hr.f 
   change index calculation for 0.25 grids (was 0.5)
      old: parameter (nx=720, ny=361, nxy=nx*ny)
      new: parameter (nx=1440, ny=721, nxy=nx*ny)
   change hardcoded indices for hour box assignment (line 63)

sorc/uv_uv24hr.fd/grib.f 
   PARAMETER (NX=1440,NY=721,NXY=NX*NY)
   IGRID=193 (193 for 0.25 deg; 4 for 0.5)

ush/ all scripts are now embedded in scripts/exuvi.sh
Major clean up in Post Processing section.
Need to verify the blocks for if SENDCOM, if SENDDBN, and, if SENDBN_GB2

scripts/exuvi.sh:
   maintain GFS subset extraction output to 0.25 deg (without converting to 0.5deg)
      remove all grid resolution conversion
      convert to ascii using subset output (0.25 deg) directly
   [line 203] export FORT11=$FIXuv/global_orography_0p25.dat
   replace "uv" tag with "uvi" in all variables  

   20230822 Added block "Restart continuation check" to skip
   existing uv and uvucs hourly output if existed, for each
   of the 6-hour groups.