maximizing spatial analysis for your business · use for simple problems-like a query • classify...
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Maximizing Spatial Analysis for your Business
Steve KoppMark Smithgall
Overview
• Finding the best place (Bakken oil leases)- Understanding site selection / suitability modeling- ArcGIS Online (GeoPlanner)- Analysis in ArcGIS Pro
• Surface Analysis with hosted web services (rig site evaluation)- ArcMap / ArcGlobe- ArcGIS Online- Web AppBuilder
• Q&A
Finding the best place• Find the best leases
• Exploration - basin and play analysis
• Locating optimal pipeline corridors
• Where to site a new gas station
4
Reality GIS layers Best leases
Binary suitability models
• Use for simple problems- Like a query
• Classify layers as good (1) or bad (0)
Best Lease = Lease% &Land restrictions &Ease of delivery
• Advantages:- Quick to build- Easy to build and explain- Works well with vector or raster data
• Disadvantages:- No “next-best” sites - All layers have same importance- All good values have same importance
Restrictions
Delivery
Lease%
10
00
1
0 01
00
BestLease
1
1
Weighted suitability models
• Use for complex problems
• Classify layers into suitability 1–9 - Weight and add together:
Oil = (Lease%* 0.5) + (Restrictions * 0.3) + (Delivery * 0.2)
• Advantages:- Flexible for exploring alternatives- All values have relative importance- All layers have relative importance
• Disadvantages:- Design and construction requires planning
951
Delivery
Best Lease
96
72
54
951
Restrictions
95
1Lease%
Available in:ArcGIS Desktop Weighted Overlay toolArcGIS Online GeoPlanner
DemoFinding the best placewith ArcGIS Online GeoPlanner
Typical project workflow
Build a team
Design the model
Define the measures
Run the model
Present the results
Choose an alternative
Feedback
Feedback
Design the model
• This is normally a team activity• Domain experts, decision makers
• Define the problem• Find the best oil leases
• Determine how to measure• Need information about leases (availability, %, history)• Need landscape information• Need delivery information
• Obtain necessary data
Define the Measures
• Determine significant layers to the phenomenon being modeled
• Reclassify the values of each layer into a relative scale- Use relevant class breaks- or Rescale By Function tool
• Weight the importance of each layer
• Add the layers together
• Run and Revise the model
Define a scale of suitability
• Define a scale for suitability- Typically 1 to 9 (worst to best)- Reclassify layer values into relevant classes- Assign suitability value to each class- Use the same scale for all layers in the model
Distance to pipeline
8765432
9 < ¼ mile
1 > 10 miles
Best
Worst
Lease %
8765432
9 < 1 %
1 > 25 %
Best
Worst
Within and between layers
0
1.6 miles
Distance to existing pipe
9
7
8
65
Lease Suitability
*
Discrete and Continuous Phenomena
• Discrete phenomena- Geology- Landuse- Ownership
• Continuous phenomena- Slope- Distance to Roads- Distance to Pipelines
12
21 10No
Data 1 1 1No
Data 1 2 2
1 1 2 2
Landuse0 = Urban1 = Forest2 = Water
Discrete
25 24 20 18
22 18 17 14
22 20 15 12
20 16 NoData
NoData
SlopeContinuous
Use Reclassify or RescaleByFunctionto transform continuous phenomena to a relevant suitability scale
DemoFinding the best placewith the Weighted Overlay tool
Weighted Overlay AnalysisArcGIS Desktop Weighted Overlay tool
• Traditional approach where a GIS Analyst constructs a model for their own use• Often presented in a meeting scenario where the analyst drives the software while
others provide input• Easy to change class breaks, class weights, and layers weights• Analysis most often performed at full resolution (can be screen resolution)• Analysis result is a file on disk and can be used in further analysis or shared
Weighted Overlay AnalysisArcGIS Online GeoPlanner
• New approach allowing the GIS Analyst to configure a web application for many to use• Allows stakeholders to explore the data and their model preferences interactively• Class breaks are defined by analyst during application construction• Easy UI for users to change class weights and layer weights• Integrated graphing tools for exploring model results• Analysis most often performed at screen resolution (can be full resolution)• Analysis result temporary and only lives within the application (changing in future)• Part of a comprehensive GeoDesign application
Weighted Overlay AnalysisDifferent implementations for different purposes
Terrain Analysiswith Web Services
Surface Analysis using Web ServicesDrilling Rig Site Evaluation
• Who can see the rig?
• If there is a spill, where will go?
Elevation Analysis Services are available across the platform
• Ready to Use Services in ArcGIS Desktop
• ArcGIS Online Analytics
• Web App Builder
• REST endpoints for developers
Uses ArcGIS Online global elevation and geoprocessing services
Can be configured to run on your data and your server
• Profile- Explore elevation along a path- Also available as a web app template, Desktop Add In ,
and Web AppBuilder widget
• SummarizeElevation- Calculate summary statistics including elevation, slope,
and aspect for user specified features
• Viewshed- Identify visible areas based on user provided
observation points
Terrain analysis tools
• TraceDownstream- Determine the downstream path of water across the landscape from a user specified point- Where does water flow to?
• Watershed- Determine the upslope area that contributes flow above each user specified point. - Where does the water come from?
Hydrologic analysis tools
Ready-To-Use Services in ArcGIS Desktop
• Esri hosted analysis on Esri hosted data- simplify job of GIS Professionals- can be used in models and scripts
just like any other tool- combine to create new solutions
- extend spatial analysis to a much broader audience
Best practices published to the Resource Center
DemoTerrain AnalysisReady to Use Services in ArcGIS Desktop
Analysis in the ArcGIS.com Map Viewer
• Expanding the use of spatial analysis throughout your organization• Analysis of ArcGIS Online data
- Esri provided (demographics, landscape)- User provided (my project data, geoRSS, CSV, etc)
• Coarse grained, high-level solutions• Now includes surface analysis tools
Analytic capabilities of the ArcGIS.com map viewerPerforming Analysis in ArcGIS Online
- Aggregate Points- Find Hot Spots- Create Buffers- Overlay Layers- Summarize Within- Summarize Nearby- Create Drive-Time Areas- Extract Data- Enrich Layer- Find Nearest- Dissolve Boundaries- Merge Layers
How many acres of parks of which type are within 1 mile of bike paths?
Find Existing LocationsDerive New LocationsFind Similar LocationsCreate WatershedTrace DownstreamCreate ViewshedCalculate DensityInterpolation Points
Analysis Services for DevelopersAnalysis Everywhere
• Analysis Services are a key part of the platform- Available to Developers to integrate into their own apps
- Web templates and Web App Builder- Mobile- Runtime
DemoTerrain AnalysisIn ArcGIS Online
Questions ?
and feedback…
Thank you! Give us your feedback!
www.esri.com/ratemyPUGsession
Thursday
Thank you! Give us your feedback!
www.esri.com/ratemyPUGsession
Friday