64254-mt----remote Sensing & Gis

NR

Code No: 64254/MT

M.Tech. – II Semester Regular Examinations, September, 2008 REMOTE SENSING & GIS (Image Processing) Time: 3hours

Max. Marks:60 Answer any FIVE questions All questions carry equal marks ---

1.a) b)

Briefly present the evolutionary aspects of remote sensing. Compare the aerial and satellite remote sensing systems.

2.a)

Give different spectral regions employed for remote sensing of earth resources. What do you mean by reference data? How is remote sensed data recorded?

b) 3.a) b)

Illustrate the integration of remote sensing data in GIS. Distinguish between census and survey data and field data. What do you understand by spatial data?

4.a)

How are the slope, length and area parameters are measured in GIS? Describe the creation of buffer zone, polygon segmentation and interpolation between points in analyzing GIS data.

b) 5.a) b) 6.a) b)

Represent and distinguish between raster and vector data formats. List the problems involved in raster and vector overlays. Illustrate the shortest path finding through a street network in GIS. How does alluvial fans occur? Show their identification by an aerial remote sensing system. Describe the drainage pattern study and analysis by remote sensing technique.

7.a) b)

How are spatial processes modeled? Give their classification. What is the role of decision support in GIS? Explain maps as decision tools.

8.a)

Briefly present the crop condition assessment using Remote sensing. Present the detection of soil erosion by a remote sensing system.

b)

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