Presentation of the specific tools GIS software by tre72542

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									Presentation of the specific tools
          GIS software
             ArcGIS 9.2
Table of contents


• Introduction

• GIS concept

• GIS software
    - ArcGIS
    - Applications

• Conclusion




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Introduction


• Complexity & size of the project

• Importance of accurate localisation of the load

• Flexibility for better adaptation in the field
                                                    Use of bests IT
                                                      tools: GIS
• Long term view for possible updates

• Production of clear geographical results




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Introduction


• Why a Geographical information system (GIS)?
    - Provide a framework for organisation & communication
    - Allows the capture and sharing of knowledge
    - Used for better comprehension, representation, managing
    - Gives a faithful image of the reality




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GIS concept

• A geographical information system
   is composed of 5 elements:
    - Geographic datasets and data models
    - Maps and globes
    - Geo-processing models and scripts
    - GIS methods and workflows
    - Metadata (description of data)                                               Source: GIS by ESRI, What’s ArcGIS 9.2?




• Geographical data
                                                                • Views
            > Spatial data
                                               Link both data
            > Attributes data                                   • Queries on the geographical database
                                                 in order to:
                                                                • Geo-processing

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GIS software


• Geographical information system (GIS) software
    - Three views of a GIS
            > Geodatabase view
            > Geovisualization view
            > Geoprocessing view
                  Derive new information from existing datasets

    - ArcGIS : Components
            > Desktop GIS (ArcView)
                  ArcCATALOG
                  ArcMAP
            > Mobile GIS (ArcPad)


                                                                  Source: GIS by ESRI, What’s ArcGIS 9.2?


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GIS software – ArcGIS


• ArcCATALOG
    - To organize & manage all
      geographic information
    - Allows to define and build
      geo-databases




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GIS software – ArcGIS


• ArcMAP
    - Mapping & editing tasks
    - Map-based query &
      analysis
    - Compose maps for printing
      or publishing




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GIS software – ArcGIS


• Mobile GIS (ArcPad)
    - Need to take GIS into the field
    - Data collection system
    - Geo-referenced data in the field
    - Allows the accurate field data collection (GPS
      support)




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GIS software – Application


• Results from the ArcGIS software
    - Predefined configuration of ArcPad
            > Directive data collection with predefined
              fields




    - Straightforward communication between
      PDAs and Desktop
            > ActiveSync transmission of Shapefiles




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GIS software – Application
                                                                                                                          Nigeria

    - Production of geo-referenced maps                       ±                     Birnin Kebbi
                                                                                                   Sokoto                      Katsina



                                                                                                                                         Kano
                                                                                                                                                                                       Maiduguri

            > Re-usable geo-referenced maps                                                                                                        Dutse                   Damaturu




            > Full geo-database available                                                                                   Kaduna
                                                                                                                                                       Bauchi
                                                                                                                                            Jos
            > Production / presentation of all results                                                            Minna


              on a map background                                                       Ilorin
                                                                                                                          Abuja
                                                                                                                                                                     Jalingo
                                                                                                                                                                                Yola




            > …                                                                          Oshogbo                   Lokoja                Makurdi
                                                                                 Ibadan
                                                                            Abeokuta             Akure


                                                                            Lagos                                            Enugu
                                                                                                     Benin City
                                                                                                                  AsabaAwka


                                                                                                                      Owerri
                                                                                                                        Umuahia
                                                           Legend                                                  Port Harcourt
                                                                                                                                 Uyo Calabar

                                                           Nigeria_cities
                                                           Population classes
                                                                  Less than 50 000
                                                                  50 000 - 100 000
                                                                  100 000 - 250 000
                                                                  250 000 - 500 000
                                                                  500 000 - 1 000 000

                                                                  1 000 000 - 5 000 000
                                                                                                                                                           0    75        150                  300 Miles
                                                                  Nigeria_rivers




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Conclusions


• Eases the on-field flexible work

• Gives a framework for the collected data

• Gives more accuracy and robustness

• Allows post-processing of the database

• Gives a spatial « sense » of the results




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