Remote Sensing and Space Photography

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What is the current phase of remote sensing development?

Adjustment of applications to the expansion of data gathering and analysis (correct)
Use of space photography for research and mapping
Application of remote sensing in the visible spectrum
Development of satellite technology for remote sensing

Where does the greater promise of remote sensing lie?

In expanding the visible spectrum
In analytical applications (correct)
In developing new satellite technology
In easing of observations in the field

What is an advantage of space photography for research and mapping?

It can show areas hundreds of kilometers across in a single frame (correct)
It is less expensive than traditional mapping methods
It can show small features of the earth's structure
It provides high-resolution images

What is possible with a suitable pair of vertical space photographs?

Obtaining a continuous stereomodel over a large area (B) Signup and view all the answers

What is particularly well shown in the MA-4 photographs?

Structures, especially lineaments (C) Signup and view all the answers

What can the MA-4 photographs be used for?

Mapping of the larger geological, landform, and vegetation patterns of the Sahara (C) Signup and view all the answers

What percentage of radiation reflects and scatters away from the target?

100% (D) Signup and view all the answers

What is the primary source of radiation collected by most remote sensing systems?

Reflected radiation (A) Signup and view all the answers

What is the typical altitude range for radar imagery and aerial photography?

300-9000 m (B) Signup and view all the answers

What is the characteristic of geostationary satellites?

Fixed position on specific location, with a wide area coverage (A) Signup and view all the answers

What is the primary factor that determines the spectral signatures of different substances or classes?

Internal atomic/molecular excitation (C) Signup and view all the answers

What is the purpose of remote sensing systems situated on a spacecraft or satellite?

To monitor the Earth's weather patterns (D) Signup and view all the answers

What is the term used to describe the path followed by a satellite?

Orbit (A) Signup and view all the answers

Which type of orbit allows satellites to observe and collect information continuously over specific areas?

Geostationary orbits (A) Signup and view all the answers

What is the main advantage of sun-synchronous orbits?

They ensure consistent illumination conditions (C) Signup and view all the answers

What is the purpose of near-polar orbits?

To cover most of the Earth's surface over a certain time period (C) Signup and view all the answers

What is the significance of the inclination of the orbit relative to the North and South poles line?

It names the type of orbit (C) Signup and view all the answers

What is the term used to describe the strip of the Earth's surface observed by a satellite?

Swath (D) Signup and view all the answers

What is the common thread that connects remote sensing, GPS, and GIS?

They are all geographically related (D) Signup and view all the answers

What is the purpose of geographic ground control points in remote sensing?

To rectify and correct remote sensing data (D) Signup and view all the answers

What is the primary source of radiation used by passive sensors?

Naturally occurring radiation, such as sunlight (A) Signup and view all the answers

What is the best way to represent base maps in GIS?

Using remote sensing data (D) Signup and view all the answers

What is a common characteristic of the data collected by remote sensing, GPS, and GIS?

They are all in digital format (B) Signup and view all the answers

What type of sensor uses its own energy source to collect data?

Active sensor (C) Signup and view all the answers

What direction does a Whiskbroom scanner sweep?

At right angles to the flight direction (B) Signup and view all the answers

What determines the Spectral Resolution of a system?

The number of spectral bands and the width of each spectral band (C) Signup and view all the answers

What is represented by the DN value in satellite imagery?

The intensity of the image (D) Signup and view all the answers

What is the main difference between Pushbroom and Whiskbroom scanners?

The direction of the sweep (B) Signup and view all the answers

What is the Temporal Resolution of a satellite imagery system?

The time interval between successive images of an area (C) Signup and view all the answers

What is the Radiometric Resolution of a system?

The number of grey levels (B) Signup and view all the answers