|
LAKE DATA
DATA TRANSMISSION AND INITIAL QA SCREENING
The program that imports the RUSS data currently is scheduled to
run every day at 7:30 AM. The RUSS base station software is used
to call each RUSS and download data that has been collected since
the last call. A file containing real-time data (RTD) collected
during the duration of the call is also created. These new profile
data and RTD files are stored on the base station computer as plain
ASCII text files, one file for each day's data. The data files from
each site are stored in a separate directory on the computer. Table
1 (above) is an sample of an original profile data file created
by the RUSS base station.
The Conversion Process
A program (the importer) is now launched. It reads data files that
have been created or changed since the last time it was run, and
converts the data to the format used by the report generating and
data visualization programs. Additionally, the original data files
are copied to the web server so they are accessible for immediate
QA/QC. Profile data files are copied to http://wow.nrri.umn.edu/data/
and RTD files are copied to http://wow.nrri.umn.edu/rtd/.
STREAM AND RIVER DATA
DATA TRANSMISSION AND INITIAL QA SCREENING
Each SMU is called daily and data that has been collected since
the last call is downloaded. These new data files are stored on
the base station computer as comma-delimited ASCII text files. The
Kingsbury station is polled twice daily, at 6 AM and 2 PM. The Chester
and Tischer sites are scheduled to be polled at 6AM each day because
of cell phone costs.
The Conversion Process
A program (the data importer) is now launched. It reads any data
files that have been created or changed since the last time it was
run, and converts the data to the format used by the report generating
and data visualization programs. The data importer examines the
beginning of these files and checks to make sure that the contents
(e.g. site name, parameter names and units) correspond to what is
expected. If not, an error message is generated and no further action
is taken with this file. This will catch errors that could occur
if, for example, a new parameter is being read by the SMU, but the
property files used by the data importer for that site haven't been
updated to handle the change.
|
