Earth & Environmental Sciences
groundwater
100%
recharge
85%
reactive transport
85%
modeling
74%
data assimilation
62%
ecohydrology
61%
arsenic
56%
wetland
51%
watershed
51%
petroleum
48%
sulfate
44%
oil spill
43%
melt
41%
crude oil
39%
Kalman filter
39%
plume
37%
mass balance
37%
parameterization
36%
water quality
35%
sulfur
35%
streamflow
34%
methane
33%
catchment
31%
hyporheic zone
31%
surface water
31%
filter
30%
vegetation
30%
meltwater
30%
timescale
29%
shrubland
29%
sewage disposal
28%
parameter
27%
lake
26%
mobilization
26%
flood frequency
25%
peatland
25%
wetlands ecosystem
25%
evergreen forest
25%
soil moisture
24%
vegetation dynamics
24%
climate change impact
23%
peak flow
23%
frequency analysis
23%
land surface
22%
sediment
22%