2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager...
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Transcript of 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager...
![Page 1: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/1.jpg)
2007 Indiana GIS Conference
City of Bloomington Contour Update Project
Laura Haley, GIS Manager
![Page 2: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/2.jpg)
2007 Indiana GIS Conference
Contour Update Project
• History of Previous Projects
• Contour Updates from 2005 Statewide Data
• How Bloomington Uses Contour Data
![Page 3: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/3.jpg)
2007 Indiana GIS Conference
1991-1992 Orthophotography, Planimetric, and Contour Mapping.
Used Traditional
Photogrammetric
Techniques
![Page 4: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/4.jpg)
2007 Indiana GIS Conference
1998 Update Project
Topography updated only
in areas of significant
change.
![Page 5: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/5.jpg)
2007 Indiana GIS Conference
2005 Statewide Orthophotography Project
![Page 6: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/6.jpg)
2007 Indiana GIS Conference
New Contour Generation
Earth Data International
• Used additional control available not used in state project and recalculated the AT.
• Created a DTM (mass points and breaklines)
• Generated 2 Foot Contours and Spot Elevation Points.
![Page 7: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/7.jpg)
2007 Indiana GIS Conference
New vs. OldAccuracy, Display, Density
![Page 8: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/8.jpg)
2007 Indiana GIS Conference
![Page 9: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/9.jpg)
2007 Indiana GIS Conference
![Page 10: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/10.jpg)
2007 Indiana GIS Conference
Using our DataPlanning DepartmentDevelopment Review, Long Range
Planning, & Environmental Planning
• Identifying areas of concern; steep slopes, karst features, floodplain, and drainage issues
• Environmental Resource Inventory – Sensitive Area Analysis
![Page 11: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/11.jpg)
2007 Indiana GIS Conference
Sinkhole Identification
Locate Depressed Contours
Areas of Karst Topography
![Page 12: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/12.jpg)
2007 Indiana GIS Conference
Identified closed
contours and field
checked.
Green – Potential
Sinkholes
Red – Sinkholes
![Page 13: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/13.jpg)
2007 Indiana GIS Conference
City & Utilities Engineering
• Planning & Preliminary Design Work for Capitol Improvement Projects; sidewalks, street improvements, water, sanitary sewer, and storm water systems.
• Base elevation reference for assets.
• Drainage Assessment – Identifying drainage basins, smaller drainage areas, and storm water detention/retention areas.
![Page 14: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/14.jpg)
2007 Indiana GIS Conference
Sidewalk Plan Drawing
![Page 15: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/15.jpg)
2007 Indiana GIS Conference
Delineating Drainage Basins
![Page 16: 2007 Indiana GIS Conference City of Bloomington Contour Update Project Laura Haley, GIS Manager haleyl@bloomington.in.gov.](https://reader030.fdocuments.net/reader030/viewer/2022033106/56649d1c5503460f949f189c/html5/thumbnails/16.jpg)
2007 Indiana GIS Conference
City of Bloomington Contour Update Project
Laura Haley, GIS Manager