NOTE- this file represents the results of ongoing research 
by the CSU Radar Meteorology group.

The file casc2D.txt contains a rainfall rate time series for
grid points in a 50 km x 50 km box centered on the latitude 
and longitude of the intersection of Taft Hill and Drake Roads
in Fort Collins.  The resolution of the data are 0.5 x 0.5 km
at approximately every 5 minutes (sometimes 6 minutes) from  
1724 MDT to 2225 MDT (total of 61 times).

The file format is setup for input to the CASC-2D runoff
model, hence the coordinates are in UTM.  There are
10201 coordinates (101 x 101 grid nodes at 
0.5 km spacing on a 50 x 50 km grid) for a total 
of 61 time periods.

The start of the data file contains a specification
for each coordinate COORD in the grid (so 10201 
lines of COORD specifications).  Looks like this-

EVENT  "Ft Collins Flood, 28 Jul 97, POLTUNE1"
NRGAG 10201
NRPDS  61
COORD 465262.968750 4463901.000000
COORD 465262.968750 4464401.000000
COORD 465262.968750 4464901.000000
COORD 465262.968750 4465401.000000
.
.
.
.
.
.
.
Until the 10201rst COORD is reached

Remember,
NRGAG= Number of points (COORDs in the grid).
NRPDS= Number of time periods (61).

Then..........

The rainfall rate data lines follow specification of the 
grid COORDs.  Each rainfall rate data line contains a 
date and time (year month day and time in MDT), followed
by rainfall rates for each coordinate in the grid (in the
order that the COORDs are specified) for that time.  Hence
the data can be read as an array RAINRATE(i,j) where the 
index i = time, and index j = UTM coord in the COORD(j) array.

For example, the rainfall rate data lines following the last
COORD line look like this-

RADAR 1997 07 28  17 24   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 ....
...............(out to 10201 values for each time).

year=1997
month=07
date=28
hours (MDT)=17
minutes = 24

Rainfall rates in mm/hour follow for each COORD.  Essentially
the rainfall rate array can be specified as RAINRATE (NRPDS,NRGAG).
The coordinate array is then specified as COORD(NRGAG).

For more specifics on the file structure see the CASC-2D 
manual.