Slide 1Who am I? …or at least, where have I been?Who can say what’s to be done?Overall Course ObjectivesSlide 5Slide 6Outline for todayGIS OverviewWhat is GIS?Slide 10Slide 11Slide 12Slide 132012 National Election ResultsWeb-based GIS: World Water Online http://worldwateronline.orgSlide 16Tools for GISUnique capabilities of GISGIS answers the followingScale of GIS dataVector dataRaster DataGIS Data and layersGIS exampleDatabasesData shown as GIS layersAdditional layersAdditional layersAdditional layersMaps and tables are interactiveMaps and tables are interactiveAdvanced GIS functionsAdvanced GIS functionsGIS applications and examplesGIS applicationsNeuroscience: brain atlasesSOFTWARE overviewArcMap (Desktop GIS)Map documentsTutorial 1-1.mxdAdding map layersGeodatabasesArcCatalogArcToolboxGIS tutorial 1 OverviewPart I Using and making mapsPart II Working with spatial dataPart III Learning advanced GIS applicationsChapter structureGIS tutorial dataGIS tutorial dataGIS tutorial dataGIS tutorial dataSummaryIntroduction to Geographic Information Systems Spring 2013 (INF 385T-28437) Dr. David ArcturLecturer, Research FellowUniversity of Texas at AustinLecture 1Jan 17, 2013Who am I? …or at least, where have I been?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 2INF385T(28437) – Spring 2013 – Lecture 13Our social fabric is evolving…In relationship with our environmentWho can say what’s to be done?Natural Resources Biodiversity Pollution Climate ChangeGlobalized EconomyPopulation/Urbanization ScienceTechnology Whose Issues Are These: Population dynamicsSocial equity issuesSustainable developmentGlobalization of resource mgmt, production & tradeToxic waste disposalFresh water availabilityEnergy supplies and demandsINF385T(28437) – Spring 2013 – Lecture 1Overall Course Objectives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 itINF385T(28437) – Spring 2013 – Lecture 14Index to Marine and Lacustrine Geological Samples (IMLGS) database. Sample locations displayed in Arctic projection, July 16, 2012INF385T(28437) – Spring 2013 – Lecture 15Index to Marine and Lacustrine Geological Samples (IMLGS) database. Sample locations displayed in Mercator projection, July 16, 2012INF385T(28437) – Spring 2013 – Lecture 16Outline for todayGIS overviewGIS data and layersGIS applications and examplesSoftware overviewCourse software & exercise files setup7INF385T(28437) – Spring 2013 – Lecture 1GIS OVERVIEWLecture 1INF385T(28437) – Spring 2013 – Lecture 1What is GIS?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 phenomena9INF385T(28437) – Spring 2013 – Lecture 110INF385T(28437) – Spring 2013 – Lecture 1S.America map by Diego Gutierrez, 156211INF385T(28437) – Spring 2013 – Lecture 112INF385T(28437) – Spring 2013 – Lecture 1TodayAral Sea, Uzbekistan13INF385T(28437) – Spring 2013 – Lecture 12012 National Election Resultshttp://www.esri.com/news/maps/2012/election-maps/2012-national-results.html14INF385T(28437) – Spring 2013 – Lecture 1Web-based GIS: World Water Onlinehttp://worldwateronline.org15INF385T(28437) – Spring 2013 – Lecture 1Group on Earth Observations (GEO): Global Earth Observation System of Systems (GEOSS)http://earthobservations.org16INF385T(28437) – Spring 2013 – Lecture 1Tools for GISHardwareComputerDigitizerScannerPrinter/PlotterSoftwareDesktop GISInternet GISCAD SoftwareDatabase SoftwareMultimedia (photos, videos, 3D models) 17INF385T(28437) – Spring 2013 – Lecture 1Unique capabilities of GIS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 18INF385T(28437) – Spring 2013 – Lecture 1GIS answers the following Location: What is at...? Where is it? Condition: Status of features? Trends: What has changed since...? Patterns: What spatial patterns exist? Modeling: What if…?19INF385T(28437) – Spring 2013 – Lecture 1Scale of GIS dataGlobal to local20INF385T(28437) – Spring 2013 – Lecture 1Vector dataMap featuresPoints, lines, polygonsFeature attributesEvery feature has attributes (e.g. name, area, population)Shape Name Class Pop2000 StatePoint New York City 8,008,278 NYPoint Los Angeles City 3,694,820 CAPoint Chicago City 2,896,016 IL21INF385T(28437) – Spring 2013 – Lecture 1Raster DataStored electronic image or picture taken as an aerial photograph or satellite imageComposed of a rectangular array of square cells, called pixels, with a number in each cell representing the solid color fill of that cell22INF385T(28437) – Spring 2013 – Lecture 1GIS DATA AND LAYERSLecture 1INF385T(28437) – Spring 2013 – Lecture 1GIS exampleIdentify polluting companies and their proximity to populations in poverty, water features, or schools.Start withDatabasesMap layers24INF385T(28437) – Spring 2013 – Lecture 1DatabasesNot easy to interpret25INF385T(28437) – Spring 2013 – Lecture 1Data shown as GIS layers26INF385T(28437) – Spring 2013 – Lecture 1Additional layersPolitical features (municipalities)27INF385T(28437) – Spring 2013 – Lecture 1Additional layersPhysical features (lakes, rivers, etc.)28INF385T(28437) – Spring 2013 – Lecture 1Additional layersAdministrative data (schools)29INF385T(28437) – Spring 2013 – Lecture 1Maps and tables are interactiveIdentify features30INF385T(28437) – Spring 2013 – Lecture 1Maps and tables