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Remote Sensing Question Paper

Remote Sensing

Course:Bachelor Of Science (Water & Environmental Engineering)

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2009/2010
FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
SCIENCE IN WATER ENGINEERING
SET 529:
REMOTE SENSING

=================================================================
DATE: WEDNESDAY 30TH DECEMBER 2009 TIME: 8.00 A.M. – 10.00 A.M.

INSTRUCTIONS

Attempt Question ONE and any other TWO.

Question One
a)
Explain the principle behind remote
sensing.
(3
marks)

b)
With an aid of a diagram, explain electromagnetic
spectrum
(5
marks)

c)
Differentiate the following terms as used in remote sensing

i)
Spatial resolution and Spectral resolution

ii)
Geometric and Radiometric correction
iii)
Multispectral Scanner (MSS) and Thematic Mapper (TM)
iv)
Photograph
and
Image (12
marks)

d)
With an aid of a flow diagram explain procedures for image interpretation.

(10 marks)

Page 1 of 2
Question Two
a)
How will you distinguish fallow land from agricultural plantation in terms of tone,

texture, shape, size, pattern, location
and
association. (14
marks)
b)
What
is
an
atmospheric
window?
(2
marks)
c)
What advantages do active sensors have over passive sensors.

(4 marks)

Question Three
a)
Explain procedures used in digital image classification in remotely sensed data.

(12 marks
b)
Briefly explain any FOUR key elements used in image interpretation.
(8 marks)

Question Four
a)
What are the advantages AND disadvantages of remote sensing over convectional
methods
of
data
acquisition.
(10
marks)
b)
Explain steps followed in geometric corrections.

(10 marks)

Question Five
a)
Explain the following as used in digital image processing:
i)
Image
enhancement
ii)
Feature
extraction
iii)
Digital
Image
Processing
(10
marks)

b)
What are the advantages do sensors carried on board satellites have over those carried
on
the
ground? (2
marks)

c)
Make short notes on the application of remote sensing in the following:
i)
Water
pollution
ii)
Lineament
iii)
Land
cover
change
(8
marks)
GOOD LUCK
Page 2 of 2

Remote Sensing Question Paper

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