ceil2nc
This program converts Vaisala lidar ceilometer data to netCDF, a
widely used format in meteorology and oceanography. The input files
may either be specified on the command line:
ceil2nc [options] file2.dat [file2.dat ...]
or read from standard input:
cat file1.dat [file2.dat ...] | ceil2nc [options]
cat file1.dat.gz [file2.dat.gz ...] | gunzip | ceil2nc [options]
Output filenames have the form YYYYMMDD_ct75k.nc.
Options
- -prefix s
- Put the netCDF files in the directory s.
- -date date
- Output only data written on the specified data (of the form
YYYYMMDD).
- -averays n
- Average groups of n rays together.
- -avegates n
- Average every n gates.
- -noisefactor f
- Set the noise-rejection threshold. The default value is now 4.
- -noclean
- By default an attempt will be made to get rid of the peculiar
speckle noise that very often occurs throughout a whole ray. Specify
this option if you like noise.
- -user s
- The name and email of the person who created the NetCDF file,
typically of the form `Joe Bloggs
<j.bloggs@radar.com>'.
- -location s f1 f2 f3
- Specify the location of the lidar: s is the name
of the site (e.g. Chilbolton), f1 is the
latitude (degrees N), f2 is the longitude (degrees E)
and f3 is the altitude above mean sea level (m).
- -site s
- Use the latitude, longitude and altitude for site
s. Currently understood sites are Chilbolton
and Cabauw.
- -verbose
- Print progress information, such as points for each ray processed.
- -comment s
- A comment to be added to each file as a global attribute.