Earth & Environmental Sciences
groundwater
100%
groundwater flow
84%
aquifer
42%
recharge
39%
basin
39%
hydrochemistry
30%
simulation
27%
well
26%
irrigation
25%
creek
21%
plain
21%
waste disposal
19%
analysis
18%
pumping
18%
water
17%
fracture zone
15%
advection
14%
groundwater resource
13%
river basin
13%
sodium
13%
flow pattern
13%
viscosity
12%
valley
12%
water stress
12%
ion
12%
road salt
12%
evaluation
11%
basin analysis
11%
permeability
11%
salinity
11%
rock
11%
soil moisture
11%
sodicity
10%
pollutant
10%
alternative agriculture
9%
evapotranspiration
9%
dechlorination
9%
orchard
9%
hydraulic conductivity
9%
travel time
9%
hydrogeology
9%
soil
9%
fluoride
9%
trichloroethylene
9%
water supply
8%
crop
8%
surface energy
8%
semiarid region
8%
water budget
8%
index
8%
Engineering & Materials Science
Groundwater
89%
Aquifers
63%
Hydrochemistry
47%
Groundwater flow
42%
Dechlorination
27%
Trichloroethylene
27%
Irrigation
24%
Water
17%
Rivers
17%
Water resources
13%
Silicate minerals
13%
Hydraulic conductivity
13%
Surface waters
12%
Wetlands
12%
Ions
11%
Weathering
11%
Adsorption
10%
Snow and ice removal
10%
Sodium
10%
Agriculture
10%
Salts
10%
Nitrates
9%
Statistical methods
8%
Soils
8%
Calcite
8%
Sulfates
7%
Molasses
6%
Potable water
6%
Shale
6%
Gypsum
6%
Potassium
6%
Sodium Fluoride
6%
Sodium chloride
6%
Carbohydrates
6%
Kaolinite
6%
Principal component analysis
6%
Talc
5%
Availability
5%
Calcium
5%
Mica
5%
Hierarchical clustering
5%
Dissolved oxygen
5%
Magnesium
5%
Hydraulics
5%
Supersaturation
5%
Chemical analysis
5%
Agriculture & Biology
aquifers
44%
groundwater
40%
Ghana
29%
groundwater flow
21%
sodium adsorption ratio
20%
basins
15%
advection
12%
water quality
12%
sodicity
12%
irrigation water
12%
dechlorination
11%
metropolitan areas
10%
salinity
10%
water supply
10%
fluorides
9%
hydraulic conductivity
9%
water management
9%
sustainable agriculture
8%
rocks
8%
mudstone
8%
simulation models
8%
chemical analysis
8%
shale
8%
roads
8%
irrigation
7%
groundwater extraction
7%
ions
7%
water
6%
salts
6%
electrical conductivity
6%
water resources
5%
time series analysis
5%
waste disposal
5%
permeability
5%
drinking water
5%