Atmospheric Radiation Measurement Program Facilities Newsletter, February 2004. Page: 2 of 3
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The NASA WB-57 will fly over the SGP
site on April 14-May 15, 2004. Dr. Gerald
Mace from the University of Utah's
Department of Meteorology will head the
project. Eight scheduled flights during the
IOP will provide approximately 50 hours
of flight time for data collection.
Instruments aboard the WB-57 will
measure such things as cirrus cloud
particle size distribution, ice crystal
particle habit, ice mass concentration,
water vapor values, and aerosol
coefficients. The data collected in the
clouds will be integrated with the vast
array of data collected on the ground by
the SGP site's suite of instruments to
improve understanding of cirrus clouds
and their processes. The ultimate goal is
improving computer climate models so
that they an predict climate change more
accurately.
Maintaining t he ACR F
SGP Site Instr uments
Throughout the SGP site (55,000 square
miles), 31 instrument facilities house
nearly 200 instruments and more than
800 individual sensors. The instruments
operate continuously to provide
uninterrupted streams of data to the
research community. To achieve these
results, ACRF adheres to a strictly
controlled instrument maintenance
program.
The SGP site employs highly trained field
technicians who are experts in servicing
and maintaining the field instruments for
all ACRF sites. Most of the instruments
are unique and were custom-built for
their purpose. To achieve the best data
stream possible, instrument mentors and
vendors train the technicians in operation
and maintenance and also provide
troubleshooting support.ARM F acil it y Gets
New Name
The ARM Cbxn ate Reseazch Facilty
(ACRF) SGP site was fbnn erly
known as the C bud and Radstbn
Tested (CART). The new name
zefacts the zeseazch ste 's new
status as a U .S. Depaitm ent of
Energy natbnaluser facity fir
chn ate change zeseazch.
ACRF requires routine preventive
maintenance for each of the 31
instrument facilities at the SGP site.
Included are the central facility, 23
extended facilities, 4 boundary facilities,
and 3 intermediate facilities. Though all
of the instruments receive preventive
maintenance at least every two weeks,
most of the instruments at the central
facility are serviced daily during the five-
day work week.
The SGP site is divided into quadrants
that delineate service areas. Field
maintenance teams are assigned to routes
for the extended facilities (Figure 2) and
for the boundary and intermediate
facilities (Figure 3). Two weeks are
needed to service all 23 extended
facilities. At the start of the first week,
two field maintenance teams set out from
the central facility. One team services the
extended facilities in the northeast
quadrant, while the second team services
the extended facilities in the northwest
quadrant. During the second week, the
teams service the extended facilities in
the southeast and southwest quadrants.
Field technicians travel with a complete
supply of test equipment and spare parts.
When they arrive at an extended facility
site, for example, the technicians contact
the site data system computer operator at
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Atmospheric Radiation Measurement Program (U.S.). Atmospheric Radiation Measurement Program Facilities Newsletter, February 2004., periodical, March 4, 2004; Argonne, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc780167/m1/2/: accessed May 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.