Weather data available…

…yet a bit “beta” – and a bit late, I apologize. I promised this at the beginning of the campaign, but…

For the moment I can provide daily files of the Vaisala Weather Transmitter WXT520 located on the south-western edge of the tower. Following parameters are measured:

• Temperature [°C]
• Relative Humidity [%]
• Pressure [hPa]
• Wind direction [°]
• Wind speed [m/s]

With a 3-second temporal resolution. 5-minute averages will be available soon on a monthly basis (one file per month).

Beta means:

• no UTC-correction (ALL TIMES LOCAL!!!)
• a few unneeded numbers still in the files
• no precipitation (I don’t believe in this yet)

– I will take care of those issues in the days to come. I hope this won’t result in a mess…

You can access the data archives (starting from August 1st) via the known URL:

http://talstation.rz.uni-frankfurt.de/wetter

Check the README-Files in the respective directories for further information!

Bertram Bühner, IAU Frankfurt

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calibration DUALER & PerCEAS, 17-18:45 UTC, 08.09.,

with emission of synthetic air.
M. Horstjann, IUP Uni Bremen

Soldering on tower

I had to solder some cables from 17:00 UTC till 17:05 UTC.

Markus, MPIC Mainz

Emission during cal.time, 10-11.30 UTC, 07.09.11

0 to 8 ppbv of NO2 and 200-250 ppbv of O3, max. 4 std.l./min. flow.
Markus, IUP U Bremen, and Umar, MPI Mainz

EMW – influence on V25?

Hey everyone…
Today (around 15 UTC) some guys were in the lower container to check something… They used walky-talkies. The EMW could have influence on the V25 and therefore MFCs. We saw this in the lab with our V25 and the Radiosondes.
At 15.04 UTC 06/09/11 I have some strength flows from the MFCs…
Perhaps everyone in the lower Container with V25 should check their Instrument or Data.

Cheers
Florian

Working on the tower UTC 06/09/2011 12:30-12:45

I changed the Propene cylinder, there has been a leak of propene for 1 minute

IUP Uni-Bremen

again SA emission (6 L/min) for 1 hour during the second calibration time

IUP Uni-Bremen SA emission

SA emission during the first hour of calibration time

Car went up the hill (during caltime)

We had to go up the hill with a car at the end of calibration time between 11:50 and 12:02 UTC to take some heavy stuff down to Fahrzeughalle.

Markus, MPIC Mainz

Possible contamination with exhaust from the east facing exhaust line

Somehow the extraction fan for the “east” exhaust line got disconnected from it’s outlet. I reconnected the cable at 11:50 UTC (13:50 local), but I cannot tell how long it was not running as I was not here during the weekend. Please be careful when walking down that you do not unintentionally disconnect it again.

Markus, MPIC Mainz