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Titlegis-ppt
TagsNumerical Weather Prediction Weather Forecasting Geographic Information System Contour Line Environmental Impact Assessment
File Size1.2 MB
Total Pages104
Document Text Contents
Page 1

M.B.RAJIV GANDHI(04B21)

J.SAHAYA VETRI SELVAN(04B22)

K.SHENBAGAVALLI(04B23)

N.SIRAJUDEEN(04B24)

B.SOWMIYA(04B25)

APPLICATION OF RS AND GIS
IN

ENVIRONMENTAL ASSESSMENT

Page 2

INTRODUCTION

The environment, is a term that comprises all
living and non-living things that occur
naturally on Earth.

Assessment is the process of documenting,
usually in measurable terms

Page 52

CONTD..
For the first time an independent and

systematic assessment of accuracy of
satellite data interpretation was made.

An error matrix was generated by
comparing classified forest cover with the
actual forest cover on the ground at 3,608
locations spread throughout the country.

High resolution PAN data was used as
proxy for ground verification.

The overall accuracy of forest cover
classification was found to be 95.9%.

Page 53

CONTD…

Though forest cover in areas as less as 1
ha in extent could be assessed using
satellite data, significant tree cover exists
in patches of less than 1 ha and in linear
shapes along roads, canals, etc. and
scattered trees that can not be assessed
using remote sensing.

Page 103

CONCLUSION

• The entire study was carried out by using, Arc/info, ArcVIEW
and ERDAS. The intricate overlays, which are manually
impossible to generate, along with the detailed calculation
have been successfully performed.

• Due to the construction of the dam on the Man River, an area
of 17.55 sq.km is going under submergence. This area consists
of parts of five villages.

• The affected inhabitants can be suitably rehabilitated in the
non-submerged part of the villages.

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