Make it Spatial. Josh Tanner. Theresa Burcsu. Tools, techniques, and tips for incorporating GIS into your research

Transcription

1 Make it Spatial Tools, techniques, and tips for incorporating GIS into your research Theresa Burcsu Josh Tanner Oregon GIS Framework Coordinator GIS Analyst & Web Administrator Geospatial Enterprise Office

2 Step What is1gis GIS in research Step 3 Resources

3 What is GIS? GIS = Geographic Information System A computer-based system to aid the collection, maintenance, storage, analysis, output, and distribution of spatial data and information. (Bolstad 2016) Models the real world Step What is1gis GIS in research Resources Step 3

4 What is GIS? Concerned with WHERE WHAT re Whe Step What is1gis GIS in research Wha t How is this?? b Who ig is it?? mana ges it?? Resources Step 3

5 Geographic representation Data models describe how objects or phenomena are represented in the GIS CAD (computer-aided design) Graphical representation (non-topologic) Images Rasters & grids Vector/georelational (topologic) Networks TIN (triangulated irregular network) Georgetown University Qatar Library Step What is1gis GIS in research Resources Step 3

6 Spatial analysis - the heart of GIS All processes and methods applied to location-based (geographic) data Turns raw data into useful information Results change as locations of objects under examination change Spatial dependence Spatial autocorrelation Step What is1gis GIS in research Resources Step 3

7 Spatial analysis A Measurements B Area =? Shape?

8 Spatial analysis Measurements Transformations buffers Graphic credit: Esri ArcMap 10.3 Online Help - Buffer

9 Spatial analysis Measurements Transformations Descriptive summaries

10 Spatial analysis Measurements Transformations Overlays Projection Spatial interpolation Data model transformations Local, focal, zonal, global analyses (cartographic modeling)

11 Spatial analysis Measurements Transformations Optimization Graphic credit: Saini, S Int. Journal of Geomatics and Geosciences. Available on ResearchGate

12 Spatial analysis Measurements Transformations Optimization Hypothesis testing Possible but problematic in GIS

13 Spatial analysis Measurements Transformations Optimization Hypothesis testing Possible but problematic in GIS Can I conceive of a larger population for making inferences? Do my data represent a random and independent sample of that population?

14 Example: Overlay analysis

15 How much sagebrush is present in priority areas (PACs) for conservation? Sagebrush = raster data PACs = polygon data

16 Percentage Cover of Sagebrush in Priority Areas for Conservation

17 Change in Sagebrush Percentage Cover 2001 to 2010

18

19 Using GIS in your research What is 1 GIS Step GIS in research Resources Step 3

20 Research topics & questions for GIS examples Determine and compare neighborhood walkability Identify high value areas by integrating multiple spatial datasets Predict where the next disease outbreak will occur Assess connectivity between habitat patches Describe the relationship between poverty and proximity to health care and employment services Describe and model landscape conditions over time What is 1 GIS Step GIS in research Resources Step 3

21 Using GIS in your research Are you interested in spatial relationships and/or patterns? Adjacency Distance from or to something else Spatial clusters or hot spots Do your data have spatial attributes? Addresses Location information Is there unexplained error or uncertainty in existing [statistical] models? What is 1 GIS Step GIS in research Resources Step 3

22 Visualization: Considerations What is the desired medium for visualization? static maps dynamic Who is the audience? What supporting information is available? What is 1 GIS Step GIS in research Resources Step 3

23

24

25

26

27 Where s the data? Collect it Develop it from other geospatial data Digitizing Feature extraction Remote sensing classification Collaborate with others Join the Framework community What is 1 GIS Step GIS in research Resources Step 3

28 Where s the data? Collect it Develop it from other geospatial data Digitizing Feature extraction Remote sensing classification Collaborate with others Join the Framework community What is 1 GIS Step Join it Using existing data sources, such as school locations to join your data to geospatial data Download it (data portals): Oregon Spatial Data Library Geoplatform.gov Census.gov Local governments ArcGIS Online And many more... GIS in research Resources Step 3

29 Oregon Geospatial Enterprise Office & Oregon Geospatial Data Clearinghouse gis.oregon.gov What is 1 GIS Step GIS in research Resources Step 3

30 Oregon Geospatial Enterprise Office & Oregon Geospatial Data Clearinghouse gis.oregon.gov What is 1 GIS Step GIS in research Resources Step 3

31 Pitfalls of GIS Datums and projections Spatial autocorrelation Data formats and models e.g., shapefiles, rasters, kml, geodatabases Linear feature (e.g., road) length underestimated What is 1 GIS Step GIS in research Resources Step 3

32 Resources for state employees Desktop Software ArcGIS for Desktop ArcGIS Pro Server / Enterprise ArcGIS Server Image Server, GeoEvent Server, GeoAnalytics Server... PaaS / SaaS ArcGIS Online Collector for ArcGIS / Survey 123 Esri Maps for Office Drone2Map API s, SDK s What is 1 GIS Step GIS in research Step 3 Resources

33 ArcGIS Desktop and ArcGIS Pro What is 1 GIS Step GIS in research Step 3 Resources

34 Pricing Maintenance Costs Billed Every Biennium Test and Try Out Prices Vary Between Software Levels Prices Vary Between Biennium Contact GEO for More Information Product License Type Version Total Primary Price Secondary Price Desktop Basic SU Unlimited $1, $ Desktop Standard SU Unlimited $2, $1, Desktop Advanced SU Unlimited $3, $1,302.57

35 ArcGIS Online

36 Pricing Currently Included in Price of ELA Contact Joshua Tanner at GEO Prefer Central Contact / Coordination for Each Agency

37

38 developers.arcgis.com JavaScript Web API Web AppBuilder Python API Runtime SDK s (Andriod, ios,.net )

39 Jupyter Notebook

40 Training Learn.arcgis.com Esri.com/training Web Courses On Site Training github.com/esri/geodev-hackerlabs esri.com/mooc/diy-geo-apps developers.arcgis.com

41 Theresa Burcsu Oregon GIS Framework Coordinator Questions? Josh Tanner GIS Analyst / Web Administrator joshua.tanner@oregon.gov Geospatial Enterprise Office