Topic
550 Earth sciences & geology
203
530 Physics
141
Earth sciences
98
infoeu-repo/classification/ddc/550
98
Arctic
74
Alaska State / Territory
70
Historic
65
570 Life sciences; biology
64
Arctic economies, Economic development, Sustainable development, Values
64
910 Geography & travel
61
Historic Background Research
60
Prehistoric
58
580 Plants Botany
57
Chipped Stone
57
Site Evaluation / Testing
54
geothermal energy
47
climate change
46
Systematic Survey
44
Reconnaissance / Survey
43
Heritage Management
42
United States Air Force
42
FOS Earth and related environmental sciences
41
Records Search / Inventory Checking
38
540 Chemistry
36
11th Air Force
35
611th
35
611th Air Support Group
35
611th Civil Engineer Squadron
35
Anchorage, AK
35
Climate change
35
Joint Base Elmendorf-Richardson
35
Pacific Air Forces
35
630 Agriculture
33
Cultural Resources
33
Environmental Economics and Policy
33
Methodology, Theory, or Synthesis
32
530
31
Iceland
31
exploration
31
550
30
Antarctica
30
Ceramic
30
Archaeological Feature
29
Fauna
28
Metal
28
610 Medicine & health
27
Artifact Scatter
26
Resource /Energy Economics and Policy
26
Domestic Structure or Architectural Complex
25
Domestic Structures
25
more ...