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Since so thoughtlessly posting the anonymous ftp whereabouts of my
Matlab oceanography toolbox, I have realized that most of the spiffy
plotting routines (which I almost never use) required some updating to
work with Matlab 4.1. Thus I am announcing a NEW REVISION of the
toolbox - if you have an older version, please replace it with this
one!

The toolbox is located in acoustics.whoi.edu:/public/Matlab/oceans

Changes include: - a higher resolution coastline database
                 - working polar projections as well as the mercator 
                   worldmap.
                 - some minor bug fixes with the handle graphics.
                 - one or two new functions have been added, and some
                   obsolete or redundant ones removed.

Currently available functions:

a) Physical properties of seawater

adiabattempgrad : adiabatic temperature gradient (used by
                  potentialtemp, bvfreq, and soundspeed)
         bvfreq : Bouyancy (Brunt-Vaisala) frequency
          depth : Depth given pressure at some latitude
  potentialtemp : Potential temperature (also used by bvfreq)
       pressure : Pressure at given depth at some latitude
     soundspeed : Speed of sound using various standard equations
                  (del grosso, chen and millero, etc.)

           swcp : Heat capacity for sea water
   swfreezetemp : Freezing point of sea water
        swstate : Equation of state for sea water (returns density and
                  specific volume anomalies or derivatives of same w.r.t.
                  S,T,P). Also used by bvfreq and soundspeed.

2) Geographical/Geometrical Properties

           dist : Range/bearing of points on the earth using various
                  ellipsoids (wsg84, clarke66, etc.). Can also
                  compute points along geodesics.
         inside : Determines whether points are inside or outside an
                  arbitrary polygon (useful for discriminating between land
                  and water points, for example)

3) Special plotting routines

       cnv2imag : Converts interpolated pcolor pics to
                  images (faster printing, discrete colours).
      stickplot : Standard stickplot graph for vector time series 
      tsdiagram : Draws a TS diagram, with density contours and freezing
                  curve.
           whoi : Draws the WHOI  logo in the bottom corner of a plot
 (whoilogo.mat) : Bitmap info for WHOI logo.
       worldmap : Draws a map of the world (uses the coasts.mat datafile)
   (coasts.mat) : Coastline database for map (1/4 degree resolution).

4) Miscellaneous

       Contents : Help information
        geodemo : A fun demo for map and dist
         indemo : A demonstration program showing the capabilities of
                  inside
       integral : Time series integration using Simpsons Rule
      stickdemo : demo program for stickplot

Rich Pawlowicz ----------------- INTERNET: rich@boreas.whoi.edu  
