Updated tower files

A very small error in boom orientation (3 degrees) has been identified, and Gordon Maclean from NCAR has corrected the datafiles as of 13 Apr. Gordon says:

The netcdf files have been reprocessed with updated boom azimuths of 154 and 334.

This includes the 5 minute files at ftp://ftp.eol.ucar.edu/pub/archive/isff/projects/cabl/netcdf_qc_geo_notiltcor

and the high rate files at ftp://ftp.eol.ucar.edu/pub/archive/isff/projects/cabl/netcdf_hr_qc_geo_notiltcor

The high rate files have also been re-formatted. They now contain 12 hours of data instead of 4, and so for each day the files are named cabl_ntc_YYYYMMDD_HH.nc, where HH is 00 and 12.   If you've downloaded high-rate files before, you should replace the 00 and 12 files with the new ones and delete files with HH fields of  04,08,16 and 20.