Introduction to Geospatial Technologies 3rd Edition By Shellito – Test Bank

Multiple Choice:
An early satellite remote sensing program that used film for taking images was
Pleiades.
Spot.
Earlybird.
Corona.

Satellites in near-polar orbit
follow a north-to-south orbital path.
follow an east-to-west orbital path.
are “locked” into a constant orbital fixed position near either the north or south pole.
use the equator as the orbital path being followed.

Pan-sharpening is used to
sense multiple small bands simultaneously in the panchromatic portion of the EM spectrum.
fuse panchromatic imagery with multispectral imagery to get a finer image.
take the pixels of an existing image and transform them into finer resolution pixels.
narrow down the sensor’s swath width and obtain finer spatial resolution for a sensor.

A geostationary satellite
rotates at the same speed as the Earth.
completes an orbit around the Earth every 12 hours.
takes 16 days to complete its orbital path.
takes exactly two days to complete a single orbit.

Off-nadir viewing allows a sensor
to obtain imagery with a half-meter or finer resolution.
to sense beyond the usual 8-bit range of values.
to image locations not directly under the sensor.
to image more than 100 bands simultaneously.

A whiskbroom sensor is a(n)
a. hyperspectral sensor.
b. linear-array sensor.
c. along-track sensor.
d. across-track sensor.

A sun-synchronous orbit indicates that
the satellite continually images the same sun-illuminated location on the ground .
the orbit is set up so that an area on the ground is imaged at the same time of day.
the satellite orbits the Sun in the same orbital path as the Moon.
the orbit is set up so that the sun-side of the Earth is imaged exactly twice in one day.

The ground size of one pixel’s worth of imagery is a measure of
radiometric resolution.
spectral resolution.
temporal resolution.
spatial resolution.

A sensor’s ability to determine fine differences in a band of energy measurements is a sensor’s
spectral resolution.
spatial resolution.
radiometric resolution.
temporal resolution.

How often a satellite can return to image the same area on the ground is a measure of that sensor’s
temporal resolution.
spectral resolution.
spatial resolution.
radiometric resolution.