3. Remote sensing is the process of detecting
and monitoring the physical characteristics of
an area by measuring its reflected and emitted
radiation at a distance (typically from satellite or
aircraft). ... Cameras on satellites can be used to make
images of temperature changes in the oceans.
REMOTE
SENSING
SATELLITE
4. Communication satellites are designed
to relay several, or more usually many,
signals simultaneously. In some cases there
may be a separate transponder for each carrier
; this is typical of broadcasting satellites and of
satellites used for distributing television signals
to terrestrial broadcasting stations.
COMMUNICATIO
N SATELLITE
5. NAVIGATION SATELLITES. Artificial satellites can
provide the basis for all-weather, long-term
navigation systems to determine with
accuracy geodetic position, speed,
and direction of a surface vehicle or aircraft,
north reference, and vertical reference.
NAVIGATION
SATELLITE
6. A weather satellite is a type of satellite that is
primarily used to monitor the weather and
climate of the Earth. Satellites can be polar orbiting
(covering the entire Earth asynchronously),
or geostationary (hovering over the same spot
on the equator). ... The Antarctic ozone hole is
mapped from weather satellite data.
WEATHER
SATELLITES
7. Earth Observation (EO) satellites help us
to monitor and protect our environment,
manage our resources, respond to global
humanitarian disasters and enable sustainable
development. They provide essential information
on a vast number of areas, including; ocean
salinity, ice thickness, crop health, and air quality.
EARTH
OBSERVATION
SATELLITE