I Semester M.E. (Civil) (Water Resources Engg.) Degree Examination, February 2014 2K8 WR101 : REMOTE SENSING AND GIS Time : 3 Hours
Max. Marks : 100
Instructions : i) Answer question No. 1 and any five full questions from the remaining. ii) Write neat figure wherever necessary. 1. Distinguish between :
(10×2=20)
a) Imaging sensor and Non imaging sensor b) Rayleigh scattering and Mie scattering. c) Spatial resolution and Temporal resolution. d) Geostationary orbiting satellite and Polar orbiting satellite. e) Path and Row. f) Spatial data and Non spatial data. g) Map elements and Map features. h) Digitisation and Scanning. i) Projection and Transformation. j) Data input and data output. 2. a) What is remote sensing ? Explain the components of remote sensing with a neat figure. b) Explain the properties of electromagnetic radiation and the portion of electromagnetic spectrum useful for remote sensing.
8 8
3. a) Explain atmospheric windows and black body radiation concept in remote sensing.
8
b) What is spectral reflectance ? Explain the spectral reflectance curves for healthy vegietation and water body.
8
P.T.O.
JUP – 091
*JUP091*
-2-
4. a) Define platform. Explain the different types of platforms used in remote sensing. b) Define sensor. Explain the different types of sensors used in IRS-1C and 1D satellites. 5. a) What is FCC ? Explain the derivation of FCC.
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b) Following is the Error Matrix resulting from classifying randomly sampled test pixels of remotely sensed data; estimate the Producer’s, User’s and Overall Accuracy. Also determine KHAT statistic. 10 Reference Data Classification Data
Water
Sand
Forest
Urban Barren land
Corn
Water
265
0
0
11
0
1
Sand
0
130
6
7
70
12
Forest
2
5
365
12
8
14
Urban
3
2
5
455
40
25
Barren land
0
50
7
35
210
20
Corn
1
6
9
8
10
308
6. a) Explain different types of IRS satellite data products.
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b) What is visual interpretation ? Explain the nine elements of visual interpretation techniques.
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7. a) Define GIS and explain the components of GIS with the help of neat sketch.
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b) Explain different sources of data for GIS and capabilities of GIS. 8. a) Explain the necessity of transformation and projection in GIS database creation. b) Explain the different types of GIS Outputs. 9. a) Explain the components and working principle of GPS with neat sketches. b) Explain the interfacing of RS, GIS and GPS for any one applications of Water Resources Engineering. ———————
8. a) Explain the necessity of transformation and projection in GIS database. creation. 8. b) Explain the different types of GIS Outputs. 8. 9. a) Explain the ...
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Therefore, the object-oriented image analysis for extraction of information from remote sensing ... Data Science Journal, Volume 6, Supplement, 4 August 2007.
