Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report January 1 – March 31, 2007 Page: 4 of 6
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January 1 - March 31, 2007, DOE/SC-ARM/P-07-007
Table 1. Operational Statistics for the Fixed ACRF Sites for the Period January 1 -
March 31, 2007.
Hours Of Operation Data Availability
Site Opsmax Actual Variance Goal Actual
NSA 1,944.00 1,965.60 -0.0111 0.90 0.91
SGP 2,052.00 2,073.60 -0.0105 0.95 0.96
TWP 1,836.00 2,095.20 -0.1412 0.85 0.97
Site Average 1,944.00 2,052.00 -0.0556 0.90 0.95
2. Site Visit Requests, Archive Accounts, and Research Computer Accounts
Description. The Site Access Request System is a web-based database used to track visitors to
the fixed sites, all of which have facilities that can be visited. The NSA locale has the Barrow
and Atqasuk sites. The SGP site has a Central Facility, 23 extended facilities, 4 boundary
facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites.
The AMF is currently being set up in Haselback, Germany, and is not officially on-line during
this quarter. NIM represents the AMF statistics for the deployment in Niamey, Niger, Africa.
PYE represents just the AMF Archive statistics for the Point Reyes, California, past deployment
in 2005. In addition, users who do not want to wait for data to be provided through the ACRF
Archive can request an account on the local site data system. The eight research computers are
located at the Barrow and Atqasuk sites; the SGP Central Facility; the TWP Manus, Nauru, and
Darwin sites; the DMF at PNNL; and the AMF in Niger. This report provides the cumulative
numbers of visitors and user accounts by site for the period April 1, 2006 -March 31, 2007.
The U.S. Department of Energy requires national user facilities to report facility use by total
visitor days-broken down by institution type, gender, race, citizenship, visitor role, visit
purpose, and facility-for actual visitors and for active user research computer accounts. During
this reporting period, the ACRF Archive did not collect data on user characteristics in this way.
Work is under way to collect and report these data.
Research computer accounts are counted in the same manner as for the ACRF Archive accounts:
an individual is counted as only one unique user per site, even though he or she opens and closes
an account several times to obtain different data at one or more sites. However, site visitors are
counted each time they visit, because many visitors participate in multiple, unrelated experiments
Also, users that visit sites can connect their computer or instrument to an ACRF network, which
requires an on-site device account. Remote (off-site) users can also have remote access to any
ACRF instrument or computer system at any ACRF site, which requires an off-site device
account. These accounts are also tracked.
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Sisterson, DL. Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report January 1 – March 31, 2007, report, April 1, 2007; United States. (digital.library.unt.edu/ark:/67531/metadc928940/m1/4/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.