Earth & Environmental Sciences
isotope
100%
mineralization
82%
land surface
80%
soil
70%
porphyry
65%
geochronology
63%
zircon
59%
rock
49%
copper
47%
geochemistry
46%
terrane
44%
sulfide
43%
water storage
41%
hillslope
40%
molybdenite
39%
Paleozoic
39%
runoff
38%
Biosphere 2
35%
simulation
32%
Proterozoic
32%
snow
31%
mineral
30%
basalt
28%
land
28%
modeling
28%
ore
28%
provenance
27%
trace element
27%
magma
27%
basin
27%
dissolution
26%
water
25%
weathering
25%
pyrite
24%
GRACE
24%
landscape evolution
24%
Cretaceous
24%
fluorite
24%
evapotranspiration
24%
rhyolite
24%
tectonic evolution
23%
river basin
23%
mantle
22%
catchment
22%
metal
22%
snow water equivalent
22%
groundwater
21%
crust
21%
ablation
21%
North America
21%
granitoid
20%
tectonics
20%
experiment
20%
soil moisture
20%
magmatism
20%
drought
20%
rainfall
19%
effect
19%
temperature
19%
observatory
18%
lower crust
18%
gold
18%
quartz
18%
vegetation
18%
parameterization
18%
sediment
17%
young
17%
Ordovician
17%
snow cover
17%
snowpack
17%
metamorphism
17%
carbon
17%
Miocene
16%
streamflow
16%
fractionation
16%
Laurentia
16%
climate
16%
xenolith
16%
soil water
16%
chalcopyrite
16%
strontium isotope
16%
evaluation
16%
trend
16%
igneous rock
16%
Gondwana
16%
watershed
15%
laser
15%
climate modeling
15%
fluid
15%
soil respiration
15%
granite
15%
bug
15%
explosive
14%
ecosystem
14%
epithermal deposit
14%
dating
14%
vegetation dynamics
14%
Precambrian
13%
adsorption
13%
tailings
13%
Physics & Astronomy
Mexico
80%
deposits
56%
minerals
42%
rocks
41%
geochronology
40%
snow
36%
volcanology
33%
geochemistry
33%
soils
32%
isotopes
30%
river basins
30%
climate
30%
magma
30%
tectonics
28%
sulfides
24%
water
23%
igneous rocks
23%
ground water
23%
crusts
23%
veins
21%
climate models
20%
drainage
19%
Earth mantle
18%
rhyolite
18%
pyrites
17%
snow cover
15%
assimilation
15%
copper
15%
evapotranspiration
15%
trace elements
14%
soil moisture
14%
evaluation
14%
recovery
13%
arcs
13%
canopies
12%
gravitation
12%
garnets
12%
basalt
11%
strontium isotopes
11%
vegetation
11%
quartz
11%
weathering
11%
magnetite
11%
parameterization
10%
fractionation
10%
rivers
9%
leaf area index
9%
plagioclase
9%
carbonates
9%
geology
9%
chemistry
9%
basements
9%
histories
8%
MODIS (radiometry)
8%
andesite
8%
carbon
8%
dating
8%
fluorite
8%
sediments
7%
biotite
7%
drought
7%
phenology
7%
canopies (vegetation)
7%
respiration
7%
aquifers
7%
contamination
7%
laser ablation
7%
apatites
7%
hydrology models
7%
diorite
7%
temperature
7%
dissolving
7%
fluids
6%
tin
6%
Dominican Republic
6%
feldspars
6%
sulfur isotopes
6%
fluorine
6%
Peru
6%
hydrological cycle
6%
productivity
6%
Mississippi River (US)
6%
pyroxenes
6%
simulation
6%
intrusion
6%
time measurement
6%
atmospheres
6%
inductively coupled plasma mass spectrometry
6%
rock intrusions
6%
irrigation
6%
inclusions
6%
volcanoes
6%
metals
6%
roofs
6%
sulfidation
6%
monsoons
5%
ecosystems
5%
Argentina
5%
Lower California (Mexico)
5%
sea surface temperature
5%
Agriculture & Biology
Bursera
50%
soil
26%
snow
22%
Burseraceae
21%
snowpack
16%
Prosopis
16%
drought
15%
Coreidae
15%
ecosystems
15%
vegetation
15%
runoff
14%
urban soils
14%
groundwater
14%
carbon dioxide
14%
chemical defenses
13%
water
13%
climate
12%
isoprene
12%
soil carbon
12%
climate models
12%
stream flow
11%
Heteroptera
11%
tropical forests
11%
climate change
11%
water storage
10%
land use
10%
arid lands
10%
predators
9%
soil water
9%
nymphs
9%
biosphere
9%
tropical rain forests
9%
canopy
9%
herbivores
9%
ecosystem services
9%
carbon
9%
leaves
9%
acetates
8%
nitrous oxide
8%
national forests
8%
phylogeny
8%
clay
8%
moderate resolution imaging spectroradiometer
8%
shrubs
8%
Amazonia
8%
urbanization
8%
hydrologic models
7%
clay soils
7%
Sonoran Desert
7%
gravity
7%
warm season
7%
chemical analysis
7%
ribosomal DNA
7%
infiltration (hydrology)
7%
Coleoptera
6%
methane
6%
snowmelt
6%
agrivoltaic systems
6%
Mexico
6%
exchangeable cations
6%
stormwater management
6%
degradation
6%
Asteriidae
6%
hydrologic cycle
6%
deserts
6%
evapotranspiration
6%
soil ecology
6%
clay minerals
5%
Commiphora
5%
arid grasslands
5%
sesquiterpenoids
5%
nectar feeding
5%
ecology
5%
weathering
5%
adsorption
5%
Prosopis velutina
5%
phreatophytes
5%
temperature
5%
insects
5%
Southwestern United States
5%
tropical dry forests
5%
defensive secretions
5%
green infrastructure
5%
Phormium tenax
5%
carbon cycle
5%
terrorism
5%
governance
5%
mountains
5%
resins
5%
greenhouse gases
5%
allomones
5%
soil properties
5%
geochemistry
5%
ecological restoration
5%
internal transcribed spacers
5%