Earth & Environmental Sciences
altimetry
100%
radar altimetry
98%
satellite altimetry
98%
plateau
55%
lake
51%
water level
45%
tide gauge
43%
altimeter
43%
Jason
41%
sea level
41%
Envisat
40%
lake level
40%
imagery
39%
remote sensing
38%
digital elevation model
34%
Landsat
34%
glacier
34%
bathymetry
33%
CryoSat
31%
satellite imagery
31%
gravimetry
29%
ICESat
26%
river
26%
water
25%
sea surface height
25%
land
24%
GNSS
23%
GRACE
22%
monitoring
21%
satellite image
20%
tide
20%
radar
19%
sensor
19%
coast
18%
in situ
17%
detection
17%
SARAL
17%
measuring
16%
MODIS
16%
synthetic aperture radar
15%
shallow water
15%
water body
15%
glacier dynamics
15%
water depth
15%
ocean
14%
schistosomiasis
14%
dam
14%
coastal zone
14%
active layer
14%
coastal flooding
14%
Engineering & Materials Science
Satellites
97%
Rivers
73%
Remote sensing
52%
Water levels
47%
Water
38%
Radar
28%
Coastal zones
25%
Dams
24%
Topography
22%
Glaciers
22%
Monitoring
21%
Tides
20%
Hydrology
19%
Snow
19%
Satellite imagery
19%
Aneroid altimeters
18%
Catchments
17%
Oceanography
16%
Surface waters
16%
Gravimetric analysis
15%
Turbidity
14%
Sea level
14%
Optical radar
13%
Water resources
12%
Interferometry
12%
Ice
10%
Electrons
10%
Tide gages
10%
Subsidence
10%
Earth (planet)
10%
Relaxation
9%
Unmanned aerial vehicles (UAV)
9%
Lakes
9%
Gravitation
9%
Mean square error
9%
Earthquakes
9%
Kinematics
8%
Pixels
7%
Statistics
7%
Biogeochemistry
7%
Bathymetry
7%
Radio altimeters
7%
Melting
7%
Recovery
7%
Runoff
6%
Groundwater
6%
Speckle
6%
Ionosphere
5%
Crops
5%
Inverse problems
5%
Physics & Astronomy
tidal flats
23%
river basins
20%
snow cover
19%
GRACE mission
19%
altimetry
19%
Ice, Cloud and Land Elevation Satellite
19%
digital elevation models
19%
Taiwan
17%
Pakistan
17%
climate
16%
imagery
14%
snow
14%
remote sensing
14%
mountains
13%
sea level
13%
China
13%
shallow water
12%
spherical harmonics
12%
water
12%
ionospherics
11%
topography
11%
bathymeters
10%
data products
10%
plateaus
9%
radar
9%
interferometry
9%
thematic mappers (LANDSAT)
7%
MODIS (radiometry)
7%
hydrology
7%
scalars
7%
Airborne Integrated Reconnaissance System
7%
oceanography
7%
surface temperature
6%
drainage
6%
tides
5%
radio occultation
5%
cryospheres
5%
rivers
5%
root-mean-square errors
5%