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Epm 304:Remote Sensing And Image Interpretation Question Paper

Epm 304:Remote Sensing And Image Interpretation

Course:Remote Sensing And Image Interpretation

Institution: University Of Eldoret question papers

Exam Year:2012

Answer all questions in part a and any three questions in part b.
Part A
Question 1
a.Distinguish between the terms land cover and land use (4marks)
b.Define the term land cover change.(4marks)
c.Differences in weather conditions and sun elevation can lead to false change detection in multi-temporal image analysis.Explain how this can occur and how it can be avoided.(4marks)
d.Using examples,give one advantage and one disadvantage of pre-classification and post classification change detection approaches.(4marks)
e.Give two advantages of satellite based remote sensing that make the technology suitable for environmental monitoring.(4marks)
Question 2
You have been tasked to produce a map of existing structures in kimumu suburb of Eldoret town in Uasin Gishu County to be used for planning the area.Explain how you will carry out this task using digital satellite imagery and visual image interpretation.(20marks)
Part B
Question 3
With reference to landscape analysis with remote sensing explain the following
a.How vegetation can be distinguished from inorganic matter (2marks)
b.Factors that allow different vegetation types to be discriminated(2marks)
c.Water characteristics that can be mapped using remotely sensed data (2marks)
d.How landforms such as faults and escarpments can be identified (2marks)
e.Forms of land degradation that can be mapped (2marks)
Question 4
With reference to automatic image classification,explain the following terms
a.Training sites (2marks)
b.Supervised classifiers(2marks)
c.Spectral signature separability (2marks)
d.Unsupervised classifiers (2marks)
e.Mixed pixels (2marks)
Question 5
a.What are image enhancements and why are they carried out?(4marks)
b.Distinguish between contrast manipulation and pseudo-color enhancement techniques (6marks)
Question 6
a.Explain the term pre-processing and explain its role in mapping (4marks)
b.Distinguish between atmospheric and radiometric error (6marks)

Epm 304:Remote Sensing And Image Interpretation Question Paper

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