Earth & Environmental Sciences
vegetation
100%
vegetation index
99%
NDVI
81%
phenology
71%
MODIS
66%
desert
42%
reflectance
38%
land cover
33%
productivity
32%
land surface
31%
time series
30%
canopy
28%
AVHRR
28%
grassland
26%
climate
26%
sensor
26%
monitoring
26%
ecosystem
26%
Landsat
25%
imagery
25%
soil
25%
growing season
22%
albedo
21%
decision support system
21%
bidirectional reflectance
21%
soil moisture
21%
remote sensing
20%
wildfire
20%
nadir
19%
Central Asia
19%
radiative transfer
19%
detection
18%
riparian vegetation
18%
leaf area index
17%
vegetation dynamics
17%
drought
17%
cactus
16%
index
16%
land use
16%
satellite data
15%
snowpack
15%
shrub
15%
photosynthetically active radiation
15%
EOS
15%
rangeland
15%
snow
15%
SeaWiFS
14%
crop production
14%
snow water equivalent
14%
mosquito
13%
Agriculture & Biology
vegetation index
53%
vegetation
50%
reflectance
43%
normalized difference vegetation index
39%
remote sensing
36%
moderate resolution imaging spectroradiometer
35%
land cover
25%
phenology
24%
snowpack
23%
advanced very high resolution radiometer
22%
ecosystems
21%
radiative transfer
21%
canopy
21%
soil
18%
deserts
17%
Sahel
16%
Earth Observing System
16%
Niger
14%
monitoring
14%
shrubs
13%
climate
13%
savannas
13%
land use
12%
vegetation cover
12%
woody plants
12%
uncertainty
11%
time series analysis
11%
sensors (equipment)
11%
arid lands
10%
Sonoran Desert
10%
albedo (reflectance)
10%
snow
10%
image analysis
9%
Gila
9%
grasslands
9%
leaf reflectance
8%
Tamarix
8%
riparian vegetation
8%
soil water
8%
wildfires
7%
unmanned aerial vehicles
7%
Landsat
7%
Central Asia
7%
growing season
7%
least squares
7%
insect vectors
7%
tropical forests
7%
USSR
6%
mixed forests
6%
coniferous forests
6%