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Introduction to Geographic Information Systems Spring 2013 (INF 385T-28437) Dr. David Arctur Lecturer, Research Fellow PowerPoint Presentation
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Introduction to Geographic Information Systems Spring 2013 (INF 385T-28437) Dr. David Arctur Lecturer, Research Fellow University of Texas at Austin Lecture 1 Jan 17 , 2013. Who am I? …or at least, where have I been?. University of Texas at Austin

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slide1

Introduction to Geographic Information Systems Spring 2013 (INF 385T-28437)

Dr. David Arctur

Lecturer, Research Fellow

University of Texas at Austin

Lecture 1

Jan 17, 2013

who am i or at least where have i been
Who am I? …or at least, where have I been?

INF385T(28437) – Spring 2013 – Lecture 1

  • University of Texas at Austin
    • Research Fellow, Jackson School of Geosciences
    • Lecturer, iSchool
  • Open Geospatial Consortium (OGC)
    • Director, Interoperability Programs 2008-2012
    • Member/Delegate 1997-2008
      • Laser-Scan, Esri, OGC Interoperability Institute
  • University of Florida, Gainesville
    • PhD Urban Planning 1996
    • Thesis re: GIS with adaptive, object-oriented database

https://gsites.google.com/site/dkarctur

who can say what s to be done
Who can say what’s to be done?

Natural Resources

Biodiversity

Population/Urbanization

Climate Change

Pollution

Globalized Economy

Technology

Science

In relationship with our environment

Our social fabric is evolving…

Whose Issues Are These: Population dynamics

Social equity issues

Sustainable development

Globalization of resource

mgmt, production & trade

Toxic waste disposal

Fresh water availability

Energy supplies and demands

INF385T(28437) – Spring 2013 – Lecture 1

overall course objectives
Overall Course Objectives

INF385T(28437) – Spring 2013 – Lecture 1

  • Basic understanding of GIS capabilities & tools
    • ArcGIS 10.1 (software provided)
    • Open Source GIS (individual exploration)
  • How many ways it can be used today
    • Thus the need for data exchange standards
  • Basic understanding of interoperability – what it is, why it matters, and how to get it
slide5

Index to Marine and Lacustrine Geological Samples (IMLGS) database. Sample locations displayed in Arctic projection, July 16, 2012

INF385T(28437) – Spring 2013 – Lecture 1

slide6

Index to Marine and Lacustrine Geological Samples (IMLGS) database. Sample locations displayed in Mercator projection, July 16, 2012

INF385T(28437) – Spring 2013 – Lecture 1

outline for today
Outline for today

INF385T(28437) – Spring 2013 – Lecture 1

GIS overview

GIS data and layers

GIS applications and examples

Software overview

Course software & exercise files setup

gis overview
Lecture 1GIS Overview

INF385T(28437) – Spring 2013 – Lecture 1

what is gis
What is GIS?

INF385T(28437) – Spring 2013 – Lecture 1

Geographic Information Systems (GIS) are computerized systems designed for the storage, retrieval and analysis of geographically referenced data

GIS uses advanced analytical tools to explore at a scientific level the spatial relationships, patterns, and processes of cultural, biological, demographic, economic, geographic, and physical phenomena

slide10

S.America map by Diego Gutierrez, 1562

INF385T(28437) – Spring 2013 – Lecture 1

slide12

Today

INF385T(28437) – Spring 2013 – Lecture 1

Aral Sea, Uzbekistan

2012 national election results
2012 National Election Results

INF385T(28437) – Spring 2013 – Lecture 1

http://www.esri.com/news/maps/2012/election-maps/2012-national-results.html

web based gis world water online http worldwateronline org
Web-based GIS: World Water Onlinehttp://worldwateronline.org

INF385T(28437) – Spring 2013 – Lecture 1

slide16
Group on Earth Observations (GEO): Global Earth Observation System of Systems (GEOSS)http://earthobservations.org

INF385T(28437) – Spring 2013 – Lecture 1

tools for gis
Tools for GIS

INF385T(28437) – Spring 2013 – Lecture 1

  • Hardware
    • Computer
    • Digitizer
    • Scanner
    • Printer/Plotter
  • Software
    • Desktop GIS
    • Internet GIS
    • CAD Software
    • Database Software
  • Multimedia (photos, videos, 3D models)
unique capabilities of gis
Unique capabilities of GIS

INF385T(28437) – Spring 2013 – Lecture 1

GIS stores related geographic features in separate collections of files called map layers

Map layers can be reused easily and assembled into any number of map compositions and overlaid for analysis

gis answers the following
GIS answers the following

INF385T(28437) – Spring 2013 – Lecture 1

Location:What is at...? Where is it?

Condition: Status of features?

Trends: What has changed since...?

Patterns:What spatial patterns exist?

Modeling:What if…?

scale of gis data
Scale of GIS data

Global to local

INF385T(28437) – Spring 2013 – Lecture 1

vector data
Vector data

INF385T(28437) – Spring 2013 – Lecture 1

  • Map features
    • Points, lines, polygons
  • Feature attributes
    • Every feature has attributes (e.g. name, area, population)
raster data
Raster Data

INF385T(28437) – Spring 2013 – Lecture 1

Stored electronic image or picture taken as an aerial photograph or satellite image

Composed of a rectangular array of square cells, called pixels, with a number in each cell representing the solid color fill of that cell

gis data and layers
Lecture 1GIS Data and layers

INF385T(28437) – Spring 2013 – Lecture 1

gis example
GIS example

INF385T(28437) – Spring 2013 – Lecture 1

  • Identify polluting companies and their proximity to populations in poverty, water features, or schools.
  • Start with
    • Databases
    • Map layers
databases
Databases

INF385T(28437) – Spring 2013 – Lecture 1

Not easy to interpret

data shown as gis layers
Data shown as GIS layers

INF385T(28437) – Spring 2013 – Lecture 1

additional layers
Additional layers

INF385T(28437) – Spring 2013 – Lecture 1

Political features (municipalities)

additional layers1
Additional layers

INF385T(28437) – Spring 2013 – Lecture 1

Physical features (lakes, rivers, etc.)

additional layers2
Additional layers

INF385T(28437) – Spring 2013 – Lecture 1

Administrative data (schools)

maps and tables are interactive
Maps and tables are interactive

INF385T(28437) – Spring 2013 – Lecture 1

Identify features

maps and tables are interactive1
Maps and tables are interactive

INF385T(28437) – Spring 2013 – Lecture 1

Select features

advanced gis functions
Advanced GIS functions

INF385T(28437) – Spring 2013 – Lecture 1

Proximity selections

advanced gis functions1
Advanced GIS functions

INF385T(28437) – Spring 2013 – Lecture 1

  • Buffers
    • Select top polluting companies and show the number of schools within 2 miles of these companies.
gis applications and examples
Lecture 1GIS applications and examples

INF385T(28437) – Spring 2013 – Lecture 1

gis applications
GIS applications

INF385T(28437) – Spring 2013 – Lecture 1

neuroscience brain atlases
Neuroscience: brain atlases

INF385T(28437) – Spring 2013 – Lecture 1

software overview
Lecture 1SOFTWARE overview

INF385T(28437) – Spring 2013 – Lecture 1

arcmap desktop gis
ArcMap (Desktop GIS)

Main menu

Standard toolbar

Map document

window

Table of

contents

Identify

results

window

Tools

toolbar

INF385T(28437) – Spring 2013 – Lecture 1

map documents
Map documents

INF385T(28437) – Spring 2013 – Lecture 1

(.mxd) extension

“Points” to layers

Saves layer colors, symbology, etc.

tutorial 1 1 mxd
Tutorial 1-1.mxd

INF385T(28437) – Spring 2013 – Lecture 1

  • Two layers
    • USCities (red points, restricted to major cities)
    • USStates (yellow polygons)
adding map layers
Adding map layers

INF385T(28437) – Spring 2013 – Lecture 1

Separate files added to a map document

geodatabases
Geodatabases

Country layer

World.gdb

Graticule layer

INF385T(28437) – Spring 2013 – Lecture 1

The geodatabase is a "container" used to hold a collection of datasets (GIS features, tables, raster images, etc).

arccatalog
ArcCatalog

INF385T(28437) – Spring 2013 – Lecture 1

Arranges and manages geographic information in workspace folders and geodatabases.

arctoolbox
ArcToolbox

INF385T(28437) – Spring 2013 – Lecture 1

Advanced tools

with form-based

input by users

gis tutorial 1 overview
Lecture 1GIS tutorial 1Overview

INF385T(28437) – Spring 2013 – Lecture 1

part i using and making maps
Part I Using and making maps

INF385T(28437) – Spring 2013 – Lecture 1

  • Chapter 1: Introduction
    • Learn the basics of working with existing GIS data and maps
  • Chapter 2: Map design
    • Learn how to create choropleth and point maps
  • Chapter 3: GIS outputs
    • Learn how to build and export maps using GIS data
part ii working with spatial data
Part II Working with spatial data

INF385T(28437) – Spring 2013 – Lecture 1

  • Chapter 4: File geodatabases
    • Learn how to create geodatabases and import data into them
  • Chapter 5: Spatial data
    • Explores the basic data types used within GIS and then shows how to use the Internet to gather GIS data
  • Chapter 6: Digitizing
    • Learn how to digitize vector data and transform data to match real-world coordinates
  • Chapter 7: Geocoding
    • Learn how to map address data as points through the geocoding process
  • Chapter 8: Geoprocessing
    • Perform spatial analysis using geoprocessing tools
part iii learning advanced gis applications
Part III Learning advanced GIS applications

INF385T(28437) – Spring 2013 – Lecture 1

  • Chapter 9: Spatial analysis
    • Perform spatial analysis using geoprocessing tools and analysis workflow models
  • Chapter 10: ArcGIS 3D analyst
    • Introduces ArcGIS 3D Analyst, allowing users to create 3D scenes, conduct fly-through animations, and conduct line-of-sight studies
  • Chapter 11: ArcGIS spatial analyst
    • Introduces ArcGIS Spatial Analyst for creating and analyzing raster maps, including hillshades, density maps, site suitability surfaces, and risk index surfaces
chapter structure
Chapter structure

INF385T(28437) – Spring 2013 – Lecture 1

  • Tutorials
    • Multiple tutorials in every chapter
    • Include step-by step exercises
  • Your turns
    • Reinforce the skills learned in the step-by-step exercises
  • Advanced assignments
    • Found at the end of each chapter.
    • Provokes critical problem-solving skills
gis tutorial data
GIS tutorial data

INF385T(28437) – Spring 2013 – Lecture 1

  • Data
    • \ESRIPress\GIST1\Data\
    • Map layers, geodatabases, data tables, etc.
gis tutorial data1
GIS tutorial data

INF385T(28437) – Spring 2013 – Lecture 1

  • Maps
    • \ESRIPress\GIST1\Maps\
    • Map documents
    • Starting place for tutorials
gis tutorial data2
GIS tutorial data

INF385T(28437) – Spring 2013 – Lecture 1

  • MyAssignments
    • \ESRIPress\GIST1\MyAssignments\
    • Location to save end ofchapter assignments
gis tutorial data3
GIS tutorial data

INF385T(28437) – Spring 2013 – Lecture 1

  • MyExercises
    • \ESRIPress\GIST1\MyExercises\
    • Location to save tutorial exercises
    • Finished exercises are solutions to tutorial exercises
summary
Summary

INF385T(28437) – Spring 2013 – Lecture 1

GIS overview

GIS data and layers

GIS applications and examples

Software overview

GIS Tutorial 1 overview