|
|
|
GODAE QC Intercomparison Project MEDS Information
|
1. There is one product on-line that kind of looks like
a black list. Each month I summarize what profile data
are received in real-time and how many of the stations
appear to have one or more problems in the profiles. I
then select all those where more than 10% of the
stations seem to have problems and visually review them.
This results in a shorter list that I issue to ship
operators each month. The URL for the on-line report is
http://www.meds-sdmm.dfo-mpo.gc.ca/meds/Prog_Int/WOCE/WOCE_UOT/ShipPerformanceReport_b.asp
2. The Argo floats that I consider to have problems
appear in the report I email each month.
3. We visually QC the data 3 times a week and then
update to our archives and send data to others. The
data file is described by
http://www.meds-sdmm.dfo-mpo.gc.ca/meds/Databases/OCEAN/Format_e.htm"
The important thing to notice is that each station
record contains an updateflag that can be set to
Delete, Replace or Update. The D's and R's come first
in the file and must be executed first. Records with
D's or R's arethe result of reviewing past data in
light of newly arrived data. So, yesterday we may have
decided a station had a bad position and so the
position was flagged as bad, but today, having seen
more stations (that arrived today) we have changed our
mind. In this case, we would change the flag on the
previous station position and the station would get a
R as the update flag. Occasionally, we reprocess data
and it is simpler to delete the existing records and
update the reprocessed ones. So, this means that you
need to consider both the update flags and process
files from us in the order received. That being said,
we send the data to others in an ASCII format described
in the document.
4. QC done within GTSPP is described by the documents
at this URL
http://www.meds-sdmm.dfo-mpo.gc.ca/meds/Prog_Int/GTSPP/QC_e.htm
These describe the tests we perform. These are executed
through an interactive program that displays the profiles
and tests the data.
|
|
|
