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| − | Geographical Information System (GIS) is a tool for analysis and presentation of spatial data. It is a collection of computer hardware, software and geographic data for capturing, managing, analyzing and displaying all forms of geographically references information. | + | #Redirect[[Geographical Information System (GIS)]] |
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| − | ==What is GIS?==
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| − | ;Simple definition : A Geographic Information System organizes large volumes of raw data into a map form for easy comprehension.
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| − | :GIS divides raw data into layers so it can give you a better understanding for the whole world.
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| − | [[Image:GISdefinition.jpg]]
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| − | ==Why is GIS unique?==
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| − | *GIS handles SPATIAL information
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| − | **Information referenced by its location in space
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| − | [Image:Spatialinfo.jpg]]
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| − | ==GIS functions==
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| − | *Data input
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| − | *Storage
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| − | *Management
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| − | *Analysis
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| − | *Output
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| − | ===Storing data using Geodatabase===
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| − | *Geodatabase is a container for spatial and non- spatial data that can be organized in a certain structure.
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| − | *Advantages:
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| − | **provide a single, consolidated data storage for field measurements and all types of data used.
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| − | **Controlling data entry by applying validation rule on the attributes.
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| − | [[Image:Geodatabase.jpg]]
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| − | ==CZM and GIS==
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| − | *GIS stores all data relevant for the CZM
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| − | *GIS handles data on all spatial scales (North Egypt coast vs. a single harbour)
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| − | *GIS is a powerful analysis tool.
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| − | **Comparison of measurements from different years
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| − | **Overlay analysis of measurements and modelling results
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| − | [[Image:GISCZM.jpg]]
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| − | [[Image:GISCZM2.jpg]]
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| − | ==Data types==
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| − | *DFS2 Data MIKE 21
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| − | *Dfs1 Data MIKE 21
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| − | *XYZ Data
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| − | *Wave time series & Rose
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| − | *Scanned Maps
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| − | *CAD drawing
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| − | '''Additional Data'''
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| − | *Land use
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| − | *Sediment classification
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| − | *Satellite images
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| − | *Geographical maps
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| − | *Reports (design, licenses, Site investigation)
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| − | *….etc.
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