The Micro Rain Radar (MRR) data in these files are from the data repository of
the original Colorado State University (CSU) LPVEx website,
lpvex.atmos.colostate.edu.

The repository for MRR data as obtained from the LPVEx website included a mix
of plain ascii data files and compressed archive files created using zip and
gzip.  The files here were cleaned by expanding compressed archives,
identifying and removing duplicate files, and putting the files under a
consistent directory structure for each of the MRRs at the LPVEx remote sites.
Additionally, as described below, mixing of data files from the MRR at Emasalo
and from a second MRR deployed at Jarvenpaa was resolved.

In the directory for each of the four remote sites (Jarvenpaa, Emasalo,
Harmaja, and the research vessel Aranda), there is a subdirectory for the MRR
instrument (and for a second MRR at Jarvenpaa).  Each of these subdirectories
contains Rawdata, Instdata and Data directories, following Metek's default names
at the time of LPVEx.  The spectral measurements
produced by the MRR, generally at 10-second resolution, are contained in files
under the Rawdata directories.  Under the Instdata directories are files that
contain the reflectivity factors, Doppler velocities, and other products
derived from the spectral data files and at the time resolution of those files.
Under the Data directories are files that also contain reflectivity factors,
Doppler velocities and other derived products, but averaged to 1-minute time
resolution.  These files were produced by the Metek MRR Control program
installed on the computers operating the MRRs.  Note that in some cases the
repository was incomplete.  For the Aranda for example, averaged Data files were in
the repository, but not the corresponding Rawdata or Instdata files.

On 9 November, 2010, components from the MRR deployed at Emasalo were relocated
to Jarvenpaa and used to deploy a second MRR ("MRR2") at that site.  This
information is per an email from Dmitri Moisseev of the University of Helsinki
to Paul Joe of Environment Canada on 10 November 2010.  That email also stated
that when the radar was redeployed as the Jarvenpaa MRR2, the vertical
resolution was changed from 100 m to 15 m.

The original data obtained from the CSU data repository for the Jarvenpaa MRR2
contained data files for days prior to 9 November 2010.  After evaluating the
files it was apparent these were files from the radar's deployment at Emasalo
that were not removed from the MRR's computer before the redeployment to
Jarvenpaa.  As part of this cleanup, these files were moved to the Emasalo
directory and any duplication was removed.

For questions about the details of the cleanup and processing done to produce
this archive, contact Norm Wood at University of Wisconsin Space Science and
Engineering Center (norman.wood@ssec.wisc.edu, 608-265-3675).

Norm Wood
7 March 2019