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Introduction to GIS

Online GIS training

04 April 2021

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GIS – What does it mean?

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• Geographic (geospatial) – Place-based, georeferenced, location is quantitatively defined– Coordinates of features are part of the database.

• Information – Attributes, data on spatial features not related to location

• S – Systems (technology)

Science (knowledge)

Studies (study on how GI is used)

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Geographic Information System

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Organized collection of

– Hardware

– Software

– Data

– People

– Procedures

– Network

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GIS Functions

GI Science can be defined as the scientific use and study of methods and tools for the capture, storage, distribution, analysis, display, and exploitation of geocoded information.

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GIS Functions

Capture

Digitizing

Scanning

GPS

Satellite

Store

Databases

Files

Query

Scale

Transform

…

Analyze

Proximity

Buffer

Overlay

Geostatistical

Display

Maps

Graphs

Web

Reports

3D View

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Components of GIS�Hardware

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POINT

LINE

POLYGON

POLYLINE

(X,Y)

(X1,Y1)

(Xn-1,Yn-1)

(X1,Y1)

(X2,Y2)

(X1,Y1)

(Xn,Yn)

(X2,Y2)

left

right

inside

outside

Types of Data

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GIS Representation

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GIS use examples

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  • Provide clusters with situational maps that are relevant for emergencies , maps creation on an ad-hoc basis

Mapping

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Purpose of mapping :Identify where the intervention is needed

(prioterize the locations of intervention)

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Make Decisions at a Glance

Use charts, gauges, maps, and other visual elements to reflect the status and performance of people, services, assets, and events in real time. From a dynamic dashboard, view the activities and key performance indicators most vital to meeting objectives.

Data Visualization/

Operational dashboards

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Static Dashboards

Partners Presence

GAP

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Static Dashboards

Summary Dashboard

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Spatial analysis

Example

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ICA Integrated Context Analysis

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Thank you! Questions?

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