Earth and Planetary Sciences
Rare Gas
100%
Tracer
93%
Radioactive Tracer
93%
Groundwater Discharge
71%
United States of America
69%
National Parks
56%
Groundwater Flow
48%
Hillslope
39%
Aquitard
37%
Global Positioning System
31%
Base Flow
28%
Streamflow
26%
Flow Velocity
26%
Australia
25%
Porewater
24%
Age Distribution
24%
Groundwater Circulation
24%
Snowmelt
23%
Surface Water
23%
Tritium
22%
Arizona
22%
GNSS
22%
Atmospherics
22%
Fracture Network
21%
Stable Isotope
21%
Hydrothermal System
21%
Solute Transport
18%
Dissolved Gas
18%
Mass Spectroscopy
17%
Isotopic Composition
17%
Water Storage
16%
Gas Flow
15%
Borehole
15%
Czech Republic
15%
Alberta
15%
Canada
15%
Hydrograph
14%
Dilution
14%
Water Balance
13%
Reactive Transport
12%
Soil Moisture
12%
Groundwater Recharge
12%
Fluid Flow
12%
Hydraulic Head
11%
Halite
11%
Downscaling
11%
Transit Time
11%
Confining Pressure
11%
Surface Water-Groundwater Interaction
11%
Wind Velocity
11%
Engineering
Flow Rate
22%
Flow Velocity
22%
Rock Deformation
22%
Gas Flow
17%
Fracture Network
13%
Tunnel
12%
Compressive Deformation
11%
Reservoir Condition
11%
Radial Strain
11%
Observables
11%
Experimental Result
11%
Mechanical Deformation
11%
Deformation Condition
11%
Input Function
11%
Mass Spectrometer
11%
Air Flow
11%
Subsurface
11%
Airflow Rate
11%
Borehole
11%
Dissolved Gas
11%
Flow Measurement
9%
Microfracture
7%
Matrix Porosity
7%
Flow Path
6%
Constrains
6%
Elevated Pressure
5%
Confining Pressure
5%
Test Site
5%
Field Test
5%
Test Range
5%
Rock Mass
5%
Rate Data
5%
Conducted Measurement
5%
Test System
5%
Test Program
5%
Coarse Sand
5%
Underground Explosions
5%
Mass Spectrum
5%
Mass Spectrometry
5%
