Earth & Environmental Sciences
lightning
100%
supercell
56%
pluton
49%
mountain
47%
Cretaceous
39%
magma
38%
isotope
36%
geochemistry
35%
rock
33%
plain
33%
zircon
33%
boundary layer
32%
thunderstorm
29%
emplacement
27%
dinosaur
26%
geochronology
26%
Jurassic
24%
fractionation
24%
river
24%
monazite
24%
radar
23%
Triassic
23%
petrology
22%
Permian
22%
Paleozoic
22%
sediment
22%
mineral
22%
magmatism
21%
forecast
21%
Pennsylvanian
21%
gulf
21%
tornado
20%
dust
20%
batholith
20%
lidar
20%
ablation
20%
Mars
19%
weather
19%
oxygen isotope
19%
provenance
19%
laser
19%
Silurian
19%
convection
19%
Laurentia
18%
analysis
18%
kinematics
18%
national park
18%
hurricane
18%
hydrogen isotope
18%
heat flow
17%
water
17%
in situ
17%
mantle
17%
tectonics
17%
vorticity
16%
Doppler radar
16%
land
16%
upper mantle
16%
North America
16%
experiment
16%
temperature
15%
Antarctica
15%
outflow
15%
melt
14%
granite
14%
carbon isotope
14%
stable isotope
14%
mineralogy
14%
carbonate
14%
Ordovician
14%
rare earth element
14%
simulation
14%
conodont
13%
fountain
13%
host rock
13%
shale
13%
ophiolite
13%
lake
13%
creek
13%
modeling
13%
canyon
12%
material
12%
wind velocity
12%
sensitivity analysis
12%
fluid
12%
history
12%
transition
12%
Maastrichtian
12%
coast
12%
crust
12%
quartz
12%
terrane
12%
assimilation
11%
hornblende
11%
electrification
11%
transition zone
11%
climate
11%
nappe
11%
Physics & Astronomy
rocks
19%
lightning
18%
mountains
14%
flash
14%
volcanology
14%
Earth mantle
13%
mars
13%
thunderstorms
13%
petrology
12%
heat transmission
12%
minerals
11%
crusts
11%
sediments
10%
regolith
10%
rivers
10%
lakes
10%
geochemistry
9%
water
9%
rutile
8%
craters
8%
trace elements
8%
Mississippi River (US)
8%
optical radar
7%
weather
7%
arcs
7%
isotopes
7%
fractionation
6%
tectonics
6%
landing sites
6%
aerosols
6%
boundary layers
6%
Labrador
5%
rock intrusions
5%
summer
5%
adsorption
5%
plains
5%
granite
5%
receivers
5%
plagioclase
5%
China
5%
simulation
5%
biotite
5%
basalt
5%
crystallization
5%