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Belfort Instruments Problem-prone Weather Equipment is Being

 
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Anonymous via the Cypherp
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PostPosted: Thu Jul 06, 2006 6:20 pm    Post subject: Belfort Instruments Problem-prone Weather Equipment is Being Reply with quote



Belfort Instruments ancient ceilometer is being retired.
http://www.arm.gov/instruments/instrument.php?id=blc

Belfort Instruments unreliable ASOS wind anemometer is being replaced.
http://ams.confex.com/ams/pdfpapers/69268.pdf

Belfort Instruments faulty Universal 5-780 rain gage is being retired.
http://pubs.usgs.gov/wri/wrir034167/toc.html

And now this:
Belfort Instruments problem-prone Bendix Aerovane is being replaced.
http://ice.ssec.wisc.edu/databook/dtbk95.doc

"Forty-three AWS units were installed at the start of 1995 and 46 were
installed by the end of 1995. Based on the installation months the AWS
units delivered 80% of the temperature data, 80% of the pressure data
and 76% of the wind data during 1995. Complete data sets were received
from 15 AWS units and 18 AWS units operated for the installed period.
Fourteen AWS units were not received for one month or more during the
year or stopped during the year."

"The wind system has the poorest performance. If the wind speed is zero
or the wind direction is constant for extended periods (days to months)
then the data is considered invalid. The reason for this behavior is
not known but is believed to be due to the build up of frost on the wind
system. This usually occurs in the winter season and at several AWS
sites. The wind speed is most frequently zero when the wind direction
is constant. Another problem with the wind system involves the
tachometer for measuring wind speed. The brushes on the Belfort
aerovane quickly wear down and fill the gaps between the contacts with
brush material, shorting out the tachometer output. As a result we do
not know the calibration. The problem is in the construction of the
tachometer, so we have begun to install a new wind system manufactured
by R.M. Young."

So exactly what working, quality-made, reliable weather sensors can
Belfort Instruments offer for sale to the weather marketplace? And
please don't say Digiwx AWOS shit?

For more about Belfort Instrument Company and DigiWx AWOS:
http://groups.google.com/groups/search?q=digiwx+awos&qt_s=Search

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Michael Baldwin, Bruce
Guest





PostPosted: Tue Jul 11, 2006 3:25 pm    Post subject: Re: Belfort Instruments Problem-prone Weather Equipment is B Reply with quote



sock drawer Anonymous via the Cypherpunks Tonga Remailer wrote:
Quote:
Belfort Instruments ancient ceilometer is being retired.
http://www.arm.gov/instruments/instrument.php?id=blc

Belfort Instruments unreliable ASOS wind anemometer is being replaced.
http://ams.confex.com/ams/pdfpapers/69268.pdf

Belfort Instruments faulty Universal 5-780 rain gage is being retired.
http://pubs.usgs.gov/wri/wrir034167/toc.html

And now this:
Belfort Instruments problem-prone Bendix Aerovane is being replaced.
http://ice.ssec.wisc.edu/databook/dtbk95.doc

"Forty-three AWS units were installed at the start of 1995 and 46 were
installed by the end of 1995. Based on the installation months the AWS
units delivered 80% of the temperature data, 80% of the pressure data
and 76% of the wind data during 1995. Complete data sets were received
from 15 AWS units and 18 AWS units operated for the installed period.
Fourteen AWS units were not received for one month or more during the
year or stopped during the year."

"The wind system has the poorest performance. If the wind speed is zero
or the wind direction is constant for extended periods (days to months)
then the data is considered invalid. The reason for this behavior is
not known but is believed to be due to the build up of frost on the wind
system. This usually occurs in the winter season and at several AWS
sites. The wind speed is most frequently zero when the wind direction
is constant. Another problem with the wind system involves the
tachometer for measuring wind speed. The brushes on the Belfort
aerovane quickly wear down and fill the gaps between the contacts with
brush material, shorting out the tachometer output. As a result we do
not know the calibration. The problem is in the construction of the
tachometer, so we have begun to install a new wind system manufactured
by R.M. Young."

So exactly what working, quality-made, reliable weather sensors can
Belfort Instruments offer for sale to the weather marketplace? And
please don't say Digiwx AWOS shit?

For more about Belfort Instrument Company and DigiWx AWOS:
http://groups.google.com/groups/search?q=digiwx+awos&qt_s=Search

Maybe you need to get some more lube, Belfort fag.
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