Earth & Environmental Sciences
river basin
45%
water resource
44%
catchment
43%
bog
43%
water retention
41%
water reservoir
41%
restoration
29%
flood protection
23%
ditch
21%
drainage system
19%
groundwater flow
18%
outflow
17%
creek
17%
water flow
16%
analysis
15%
drought
15%
melting
14%
valley
13%
surface water
13%
water
11%
groundwater
11%
river
9%
simulation
8%
modeling
8%
method
4%
Chemical Compounds
Catchment
99%
Bog
98%
Groundwater
62%
Flood Reaction
42%
Surface Water
30%
Melting
25%
Flow
18%
Simulation
18%
Surface
9%
Engineering & Materials Science
Catchments
87%
Water resources
74%
Rivers
57%
Restoration
28%
Weirs
23%
Groundwater flow
22%
Drought
22%
Surface waters
20%
Groundwater
17%
Drainage
15%
Melting
13%
Numerical models
11%
Computer simulation
7%
Agriculture & Biology
water resources
66%
water reservoirs
40%
bogs
36%
groundwater flow
27%
flood control
24%
water
24%
weirs
23%
drainage systems
20%
river valleys
17%
water table
17%
water flow
16%
surface water
16%
melting
15%
case studies
12%
drought
11%
methodology
3%
Social Sciences
Water resources
68%
water
45%
River basins
39%
restoration
20%
Flood protection
16%
Drainage systems
16%
Water flows
16%
Surface waters
14%
drought
11%
river
9%
reconstruction
8%
simulation
7%
threat
6%
Medicine & Life Sciences
Water Resources
100%
Rivers
40%
Water
38%
Groundwater
24%
Wetlands
23%
Droughts
13%
Freezing
8%
Drainage
7%
Business & Economics
Water Resources
70%
Water
42%
River Basin
37%
Ground Water
22%
Restoration
13%
Simulation Modeling
10%
Drought
10%
Threat
6%