Question about time series data

[Chi <chi@xxxxxxxxx>]

Hi dear LAS users
  I have some time series data collected from buoys. The one I'm trying to 
add into LAS is only one dimensional , i.e. time dimension. It has variables
like salinity and temperature. I created coards netcdf files upon the raw data
, then used "addXML.pl" and "make" to update LAS. 
   Here is my question. Do I have to define the variable, say "salinity", with longitude and latitude dimensions 
in the coards netcdf file? Initially, I just defined one dimension "time_series" in my netcdf file,
and "salinity" has only this dimension, however when I ran "addXML.pl", I got an error saying 
"salinity" missed lon/lat, therefore I modified my netcdf file, added lon/lat and successfully 
ran the "addXML.pl" command. But I'm still wondering is this necessary? Since the raw data doesn't
contain any lon/lat information, it's a bit awful to add  the fake lon/lat into the netcdf file.
  Thanks a lot , Ding