This directory contains various programs to analyze airborne radar
and/or dropsonde data.

Major programs:

1. Eldorado.sh -- This is the overall program to compute the 3D-VAR
winds from radar and/or dropsonde data.  It calls

      a. Eldoragrid.sh -- grid and preprocess radar and dropsonde
      data onto a grid.

      b. Eldorafit.sh -- do the 3D-VAR analysis to obtain wind data
      consistent with mass continuity using the output of
      eldoragrid.sh.

      c. Eldoraproc.sh -- do post-processing and many diagnostic
      functions on the output of eldorafit.sh.

      d. Eldoratrac.sh -- extract aircraft track data -- only works
      if there are Doppler radar data.

2. Thermoproc.sh -- This calls ngsonde to compute the 3D-VAR thermal
fields from dropsonde data.  It is now located in ../dropsondes.  See
this directory for other dropsonde processing scripts as well.

3. Eldoramask.sh -- Generate a mask region of good data from a list
of lon-lat points.

3. Docombo.sh -- This combines files from eldoraproc.sh,
thermoproc.sh, and eldoramask.sh into a single file in which all
fields are made compatible and are masked by the output of
eldoramask.sh.  A maximum altitude mask is also applied to the output.

4. Comboanal.sh -- This does additional analysis (mainly
thermodynamic) on the output of docombo.sh.

Minor programs:

1. Jday.sh, predictday.sh -- Compute the julian day for the year from
date or reverse.  Predictday.sh does the same for the PREDICT project
(2010) using the beginning of 2008 as the zero for julian day, to
maintain consistency with the TCS-08 project, which occurred in 2008.

2. Lonlatdiv.sh, xydiv.sh -- Compute the horizontal divergence in
lon-lat or x-y coordinates.

3. Lonlatvort.sh, xyvort.sh -- Compute all the components of absolute
vorticity in lon-lat or x-y coordinates.

4. Lonlatzcurl.sh -- Compute the z component of the curl in lon-lat
coordinates.

5. showdbzdrops.sh -- Make plot at 2 km of radar reflectivity and
dropsonde locations in specified region.  The purpose of this is to
determine how to make the mask of good data for the case study.

6. tcs08xyconv.sh -- Convert lon-lat coordinates to x-y coordinates
with (x,y) = (0,0) at a specified (lon,lat) location.

7. thermalgrad.sh -- Generate corrections to the temperature and
potential temperature fields due to the large-scale thermal wind
gradients of these quantities.

8. mkpublic.sh -- Make a public version of 3dvar files in tcs08.  This
eliminates non-useful variables, converts to netcdf form, and puts
the file at the appropriate place on my website.

9. tcs08_psurf.sh -- Extract the surface pressure and remove the mean
and linear gradient.  Plot the corrected pressure as a function of
radius based on coordinates provided on the input line.  Plot also
the corrected pressure as a function of longitude and latitude.  The
specified center should be refined after the above plot is seen.