GIS

Essay on GIS

Name of the writer

Name of the institutionList of GIS Software

1

GRASS GIS

19

CartoDB

2

gvSIG

20

PostGIS

3

ILWIS

21

SpatiaLite

4

JUMP GIS

22

TerraLib

5

MapWindow GIS

23

GeoBase (Telogis GIS software)

6

Quantum GIS (QGIS)

24

Geomajas

7

SAGA GIS

25

MapFish

8

uDig.

26

OpenLayers

9

Capaware

27

Chameleon

10

FalconView

28

MapPoint

11

Kalypso

29

ST-Links

12

TerraView

30

PostGIS

13

Whitebox GAT

31

VMDS

14

GeoServer

32

Spatial Data Transformation Tools

15

MapGuide

33

Safe Software - Spatial ETL

16

Mapnik

34

FME Desktop

17

MapServer

35

FME Server

18

uMAP-R

36

ArcGIS

Retrieved from (www.environment.gen.tr) on 25-oct-2012Essay on GIS

Data Collection Methodologies

Digitizing and scanning of maps

Input image data

GIS application areas

Land Information System

Environment and Natural Resources Management

Introduction

Geographic information system (GIS) is a structure planned to manipulate, capture, supervise, store, analyze and introduce all kinds of geographical data. GIS is used for both geospatial information studies and geographical information science to relate the intellectual discipline or work career with geographic information systems (Aguiar, Medeiros 1996). It has been observed that GIS is the integration of statistical analysis, cartography, and database technology (Hunter, 1997). The software of GIS digitally generates and manipulates spatial areas, which may be jurisdictional or application-oriented. GIS permits to understand, view, interpret, wonder and visualize data in many conduct that expose patterns, association, and movements in the shape of maps, reports, and charts. The technology of GIS can be incorporated into project information system framework (Pires, medeiros 1993). The science of the world space is called geography, which after the indulgence with GIS, gives help to better understands the application of geographic knowledge and better understanding about earth. The results of the Geographic Approach is a new way of problem solving and conceiving information to handle the activities in the planet. The approach takes into account for creating geographic knowledge by assessing the earth, organization of data and it analyses of different processes and their interactions.

Summary

The paper highlights the study of Geographic Information System and its two different methodologies that connect the entire study with each other. The methodologies are based on the applied areas of land information system, and Environment and Natural Resources Management. GIS is the data collecting software that displays the geographical function in most of the fields.

Discussion Analysis

The concepts model of GIS

Primary learning or education in GIS should teach the concepts of spatial analysis. GIS practitioners have taken enough time in data capturing, and entering information into the system (Souza, 1986). GIS stored the data in digital format and have variety of methods used for entering data in it. The present printed data on paper or in the shape of PET film maps could be scanned or digitized to generate digital data (Aguiar, medeiros 1996). Vector data is produced by digitizer, which is an operator that traces polygon boundaries, lines and points from a map. Raster data is a result of scanned map, which could be more processed to turn out vector data. The data of surveys can be openly entered into a GIS from digital data collection systems, by using the technique called coordinate geometry (Wiederhold, 1995). GNSS “global navigation satellite system” can be gathered and transport it into a software of GIS (Leclercq, 1996). The recent development in data collection provides users the capability to operate field computers with the capacity to edit the format of live data, by using the wireless connections or ...