Get premium membership and access revision papers, questions with answers as well as video lessons.

Got a question or eager to learn? Discover limitless learning on WhatsApp now - Start Now!

Satellite Remote Sensing Question Paper

Satellite Remote Sensing

Course:Bachelor Of Science In Water And Environmental Engineering

Institution: Kenyatta University question papers

Exam Year:2008

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE IN WATER AND ENVIRONMENTAL ENGINEERING

SET 529: SATELLITE REMOTE SENSING

DATE: Tuesday 2nd December, 2008

TIME: 4.00 p.m. – 6.00 p.m.

INSTRUCTIONS
Attempt question ONE and any other TWO questions.

Question One
a)
Define remote sensing. Why is it important when compared with other conventional data acquisition method? [4 marks]
b)
Explain why most remote sensing systems avoid detecting and receiving wavelengths in the ultraviolet portion of the spectrum? [4 marks]
c)
Referring to scattering and absorption mechanism in remote sensing, define the following important terms:
i)
Scattering
[2 marks]
ii)
Rayleigh scattering
[2 marks]
iii)
Mie scattering
[2 marks]
iv)
Non selective scattering
[2 marks]
v)
Absorption
[2 marks]
d)
Define Spectral signatures. Why is it important in remote sensing technique? [4 marks]
e)
Discuss eight basic characteristics of an image that are important for its interpretation. [8 marks]

Question Two
a)
Distinguish between active and passive sensors. [4 marks]
b)
Differentiate between the following pairs of terms:
i)
Multispectral scanner (MSS) and Thematic Mapper
[2 marks]
ii)
Radiometric and Geometric corrections
[2 marks]
iii)
Radiometric and Spectral resolution
[2 marks]
iv)
Vidicon and Panoramic camera
[2 marks]
c)
i)
Define resolving power as used in satellite remote sensing. [2 marks]
ii)
Describe any six types of resolving power. [6 marks]

Question Three
a)
What are the advantages and limitations of remote sensing? [5 marks]
b)
Mention any four types of platform. [4 marks]
c)
Explain how data is acquired from aerial photographs. [4 marks]
d)
How will you distinguish agricultural plantation from cropland in terms of tone, texture, shape, size, pattern, location and association? [7 marks]

Question Four
a)
Define image processing
[2 marks]
b)
Make short notes on the following:
i)
Pre-processing
[2 marks]
ii)
Image enhancement
[2 marks]
iii)
Image transformation
[2 marks]
iv)
Image classification and analysis
[2 marks]
c)
Differentiate between supervised and unsupervised classification. [4 marks]
d)
How is image classification carried out?
[6 marks]

Question Five
a)
Discuss the application of remote sensing in the following areas:
i)
Geology
[3 marks]
ii)
Forest
[3 marks]
iii)
Wildlife
[3 marks]
iv)
Soil science
[3 marks]
v)
Land cover change
[3 marks]
b)
Define atmospheric windows. If you wanted to monitor the general health of all the vegetation cover over the Mau Forest for several months, what type of platform and sensor characteristics (spatial, spectral and temporal resolution) would be the best for this task and why? [5 marks]

[Total 20 marks]

…………………

Satellite Remote Sensing Question Paper

More Question Papers

Popular Exams