An Analysis Of Land Use And Land Cover Change Of Tuticorin, Tamilnadu Using Internet Gis - PowerPoint PPT Presentation

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An Analysis Of Land Use And Land Cover Change Of Tuticorin, Tamilnadu Using Internet Gis

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Title: An Analysis Of Land Use And Land Cover Change Of Tuticorin, Tamilnadu Using Internet Gis


1
An Analysis Of Land Use And Land Cover Change Of
Tuticorin, Tamilnadu Using Internet Gis
John Prince Soundranayagam1 Chandrasekar. N1
Sivasubramanian. P2 And Divya.C3 1.Centre
for GeoTechnology Manonmaniam Sundaranar
University 2. V.O.Chidambaram College,
Tuticorin 3. The Center for information
Technology Manonmaniam Sundaranar University,

2
INTRODUCTION
The Internet is a Virtual trove of information.
Any kind of information on any topic under the
Sun is available on the Internet. The World
Wide Web (W3). Internet GIS is a research tool
that facilitate to access, process and
dissemination of geographic information and
spatial analysis knowledge
3
WEB GIS
With WebGIS, users do not need to purchase and
install expensive GIS software in order to access
and work with maps and databases. Also, users
do not need to become experts in sophisticated
GIS applications, since the functionality is made
available through a regular web browser and an
integrated Viewer with a simple, user-friendly
interface. The focus of the paper is to
demonstrate how WEBGIS technology can be employed
for spatial data collection.
4
CLIENT /SERVER
Web GIS is a client server concept. We are using
the Internet Map Server and Web Server to host
the designed web site. ArcIMS is a solution for
delivering dynamic maps and GIS data and services
via the Web. It provides a highly scalable
framework for GIS Web publishing. Using ArcIMS,
city and local governments, businesses, and other
organizations worldwide share geospatial
information both internally and to the public.
5
Client Server
6
WEB SERVER
A web server can be referred to as either
the hardware (the computer) or the software (the
computer application) that helps to deliver
content that can be accessed through
the internet. Most people think a web server is
just the hardware computer, but a web server is
also referred to as the software computer
application that is installed in the hardware
computer. The most common use of web servers are
to host websites but there are other uses like
data storage or for running enterprise
applications. There are also different ways to
request content from a web server. The most
common request is the Hypertext Transfer
Protocol (HTTP), but there are also other
requests like the Internet Message Access
Protocol (IMAP) or the File Transfer
Protocol (FTP).
7
Study Area
8
Thermal Power Plant
9
SPIC
10
Sterlite Copper Smelter
11
Methodology
PREPARATION OF BASIC SPATIAL DATA
The LULC map of Tuticorin for the year 2003 was
prepared using LISS III satellite data by using
supervised classification method for the purpose
of developing WEB GIS. The Tuticorin topomaps
(1969) were digitized and the extent of the
Settlement, saltpan, wasteland, Agricultural land
and Water bodies were extracted using ArcGIS 9.2
software
12
ARCIMS
ArcIMS is used in developing the GIS web-base
application as it is an Internet Map Server
software which provides the components required
for web development such as authoring, designing,
publishing and administering Internet mapping
application. It allows web clients, map server,
data server and Web Server to communicate between
one another. Through ArcIMS, developers are able
to build the web-based GIS faster and manage
MapService over the internet.
13
Deigning a web site
Author Administrator Designer
14
ARC IMS - AUTHOR
ArcIMS Author to create a map for our Web site by
performing such tasks as adding data layers,
setting layer symbology and creating stored
queries. Author always saves your map content in
a configuration file with the .axl file
extension.
15
ADMINISTRATOR
The Administrator can create, start, stop, and
remove services. Administrator can set and change
service properties, such as the Virtual Server
assignment. Administrator also lets you work with
servers (map server, image server and feature
server).
16
Designer
ArcIMS Designer is an application that guides you
through the viewer design process. One can
design the web page using HTML or JAVA. In the
java, designer can create a web page using java
standard or java custom tool sets. Most of the
tools do not appear if you choose the Java
Standard. In the present study, we design the
website to display the layers such as Settlement,
Saltpan, Agricultural, Waste land and Water
bodies for the year 1969 and 2003 using HTML
17
Designer
18
Viewer
The HTML Viewer The Java Standard and Custom
Viewers
19
Land-use and land-cover change (LULCC)
  • Humans have been modifying the surface of the
    earth rapidly for their needs such as food,
    settler and other essentials.
  • These changes encompass the greatest
    environmental concerns of human populations
    today, including climate change, biodiversity
    loss and the pollution of water, soils and air.
  • Monitoring and mediating the negative
    consequences of LULCC while sustaining the
    production of essential resources has therefore
    become a major priority of researchers and
    policymakers around the world.
  • Keeping these perspectives an, attempt has been
    made to analysis the land use and land cover
    changes that have taken place from 1969 to 2003

20
Viewer
tool bar
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Identify tool
Identify Tool
Attribute table for the selected land type
22
Identify tool
Layer/Legend Toggle
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Query tool
Query tool is one of the best option in the web
based LIST, The Query is written using SQL
(structured query language). We can use Query
with logic algorithm and basic arithmetic
functions. The query function is used to
select the particular soil type as shown
Query Tool
Results for the Selected Query
24
BUFFER TOOL
Buffer Tool selects the features of one layer
that are within the specified buffer distance of
selected features of another layer. The buffer
zone created for the particular Road map
25
MEASURE TOOL
Suppose if the user wants to measure the distance
between two points or a path way, Measure Tool is
used
26
Overlay Operation in change detection Study
27
Overlay Operation in change detection Study
The overlaying operation of change detection
analyze is very essential to determine what is
exactly changing to what land use class changing
to other. This information will be a vital tool
in management decision
Click here by using identify tool to select a
polygon
Select the Settlement layer for the year 1969 and
2003
Area of the settlement for the selected polygon
for 1969
28
OVERLAY OPERATION IN CHANGE DETECTION STUDY
Click here by using identify tool to select a
polygon
Select the Settlement layer for the year 1969 and
2003
Area of the settlement for the selected polygon
for 2003
29
Analysis
Categories 1969 1969 2003 2003
Categories Area Sq.km Area() Area Sq.km Area()
Selltlement 18.82 5.26 49.97 13.96
Salt pan 23.72 6.63 33.05 9.23
Industries 0 0 5.76 1.61
Agricultural 95.35 26.63 94.85 26.49
Wasteland 197.63 55.20 153.32 42.83
water bodies 22.48 6.28 21.05 5.88
Total 358 100 358 100
30
Analysis
Attempts were made to capture as accurate as
possible land use and land cover as they change
through time. Tuticorin has witnessed remarkable
expansion, growth and development activities such
as urban sprawl development and conversion of
land into settlement, Industrial area and
saltpan. Mostly the contributors for the
development are identified as waste land. During
the development the salt pans and some settlement
near the cost, sand dunes and palaeo strandlines
were demolished. These above said structures are
storage tanks of freshwater in coastal aquifers.
So the demolition of these structures leads to
cause strain in coastal aquifer systems.
31
Salt Pan
32
Conclusion
The WEB GIS is found to be very useful in
monitoring the urban growth of a thickly
populated and rapidly increasing city like
Tuticorin. WEB GIS acts as an important tools for
the developers and planners to extract Spatial
data of their interest.
33
Thank You
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