Table 1,
cont’d.
B Satellite
KOMPSAT OCEANSAT ORBVIEW 2 ENVISAT TERRA
& AQUA
SENSOR OSMI OCM SEAWIFS MERIS MODIS
type
1
R R C/R R T
Revisit time (days)
2
~2 ~2 ~1 ~3 ~1
near-real time
3
No no yes no yes
Spatial resolution (m)
1000 360 1100/4000 300/1200 1000
Web site
6 7 8 9 10
country or agency
Korea India USA ESA USA
Floods/Storm
Surge
Fronts/Eddies (biological)
Fronts/Eddies
(thermal)
Ice Surface
Temperature
Turbidity (coastal)
Vegetation
(littoral)
Water Coloring
Constituents
1
Sensor type (C)ommercial,
(Met)eorology, (T)ransitional, (Mil)itary
, (R)esearch/development. See
appendix for definitions of categories.
2
Revisit time refers to either the satellite’s orbit recycle time or the
sensor’s effective revisit time (identified
with a “~”) at mid-latitudes. Revisit time varies with latitude and sensor configuration.
3
Near-real time refers to satellite data that can be delivered to the
user within two hours of satellite overpass.
208
Whitehouse and Hutt