Historical Visitor Statistics

As a national user facility, ARM is required to report facility use for actual visitors and for active user research computer and Archive accounts and only unique scientific users will be counted. A scientific user is defined as a member of the scientific community and infrastructure who is using ARM Facilities or data to perform peer-reviewed science and research. For the ARM Infrastructure, this includes the scientists and engineers who are involved in the development of synthesis products, value-added products, instrument performance analysis, and uncertainty quantification. Unique scientific users are defined as a single use of an ARM Facility’s on-site assets, off-site services, or data services during the defined reporting period.

Beginning in fiscal year 2013, the approach used to count scientific users for the ARM Climate Research Facility was revised to align with other DOE Office of Science user facilities. Please contact Jimmy Voyles if there are any questions related to the information presented here about the facility statistics.

Table 1. ARM Climate Research Facility Scientific Users

FY2014 Q1 Summary of Last 12 Months
Facility Access Type Unique Scientific Users
On site 151
Off site 489
Data 529
Total 1,169

Table 2 follows reporting guidance provided in FY2009 for counting ARM users. At that time, the new computations were applied to previous quarterly reports and user statistics were recalculated to count only scientific users.

Table 2. Facility Users by Year and Site*
*Scientific user numbers appear first; total number of users appear in the parentheses.

Fiscal Year ARM Aerial
Facility
ARM Mobile
Facility
Data Mgt
Facility
North Slope
of Alaska
Southern
Great Plains
Tropical
Western
Pacific
Archive Totals
2012
4 (4)
125 (201)
54 (125)
55 (101)
120 (240)
38 (52)
837 (946)
1233 (1669)
2011
+ (+)
175 (234)
48 (115)
41 (81)
149 (327)
34 (62)
770 (845)
1217 (1664)
2010
+ (+)
32 (52)
27 (83)
33 (71)
60 (123)
22 (43)
744 (813)
918 (1185)
2009
+ (+)
20 (41)
27 (76)
30 (69)
62 (151)
40 (53)
744 (819)
923 (1209)
2008
+ (+)
254 (273)
28 (56)
56 (101)
55 (108)
25 (41)
588 (651)
1006 (1230)
2007
+ (+)
657 (707)
25 (45)
28 (60)
89 (198)
29 (39)
570 (642)
1398 (1691)
2006
+ (+)
20 (53)
24 (41)
31 (67)
45 (170)
32 (59)
487 (554)
639 (944)
2005
+ (+)
50 (79)
18 (24)
43 (136)
109 (209)
42 (95)
448 (523)
710 (1066)

+ Data for the ARM Aerial Facility were not collected during this time.

Every visitor to the ARM Climate Research Facility must submit a request to visit. From that request, the following statistics in Table 3 have been summarized and the total number of visitors days are recorded.

Table 3. Visitor Days by Year and Site

Fiscal Year North Slope of
Alaska
Southern Great
Plains
Tropical Western
Pacific
ARM Mobile
Facility & Off-Site
Total
2011
470
2605
667
2983
6725
2010
522
332
331
415
1600
2009
541
606
203
987
2337
2008
1511
835
223
2799
5368
2007
312
1676
212
4729
6929
2006
473
496
466
839
2274
2005
929
1530
531
941
3931
2004
1333
895
363
0
2591
2003
1025
1487
368
0
2880
2002
995
796
0
0
1791
2001
1172
1411
0
0
2583
2000
370
465
0
0
835
Total
9653
13,134
3364
13693
39,844