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Table of Contents
1. Introduction
2. Sensors
3. Microwaves
4. Image Analysis
5. Applications

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Fundamentals of Remote Sensing

Section bar - Chapter 2
 

2.2 Whiz Quiz

What advantages do sensors carried on board satellites have over those carried on aircraft? Are there any disadvantages that you can think of?
The answer is ...

As a satellite in a near-polar sun-synchronous orbit revolves around the Earth, the satellite crosses the equator at approximately the same local sun time every day. Because of the orbital velocity, all other points on the globe are passed either slightly before or after this time. For a sensor in the visible portion of the spectrum, what would be the advantages and disadvantages of crossing times (local sun time) a) in the early morning, b) around noon, and c) in the mid afternoon?
The answer is ...

back to Section 2.2 Did you Know 2.2 Section 2.3
Updated2002-08-21 go to top of page Important Notices