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Orthophotography Update

Wendy StoutGeospatial Program ManagerVirginia Geographic Information Network

October 9, 2013

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Current Status of VBMP 2013-2016

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VBMP Program 2013-2016• Commonwealth contracted with the Sanborn Map

Company to provide full color, leaf-off, digital orthophotography for the entire land base of Virginia.

– Eastern portion of the State was acquired in Spring 2013.

– Western portion of the State will again be acquired in Spring 2015.

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VBMP Program 2013-2016

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“Off-Year” Flights

• Orthoimagery/upgrades outside of the base program years (2013 for eastern half, 2015 for western half) can be acquired

• Minimum area/order size must be greater than $25K in value

• 1ft ortho price = $20.59 per 1’ tile in off-year.

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2013 12-in Flight Design

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2013 6-in, 3-in Flight Design

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2013 AcquisitionUpgrades

3-inch orthos 6-inch orthosAlexandria Albemarle County*Arlington Charlottesville

2-ft Contours Fairfax CityAlexandria city Fairfax CountyFairfax City Farmville TownSpotsylvania County Hopewell cityFarmville Town James City CountyCharlottesville New Kent County

4-ft Contours Richmond CityAlbemarle County ScottsvilleGreensville County Spotsylvania County

Impervious York County*Stafford County Enhanced LandcoverFairfax city New Kent County

City of WilliamsburgStructure Planimetrics Other Planimetrics

Spotsylvania County Alexandria cityFarmville Town Arlington CountyGoochland County Spotsylvania CountyNew Kent County

*partial

2013

2015

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Acquisition• Flights began on 2/21. • Final flight was performed 4/14.

– In between, weather and flying conditions were as bad as we’ve seen

• Multiple snow events, last one in April• Very few clear days – multiple re-flights needed for clouds/shadows

• All 6-in and 3-in blocks were completed.• 98% of the 1-ft blocks were acquired

• Portions of Fredericksburg, Fauquier, Prince William, and Stafford were not able to be acquired before the leaf-on conditions stopped flights

• Sanborn and VGIN will be coordinating to re-fly these areas in spring 2014.

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12-in Area – no 2013 coverage

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Status Summary Statistics

•23,164 of 32,354 tiles have been delivered from Sanborn to Dewberry (72% of total program)•12,556 of 32,354 tiles have completed QC (39% of total)•8,731 of 32,354 tile are fully accepted (27% of total)

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Milestone Update

Table 1 Eastern Project Area

         

Milestone Number DateNumber of Completed

BlocksCumulative Number of

Completed Blocks

Actual Number of Cumulative Completed

Blocks

1 31-Jul-13 5 5

4   one foot and three 6 inch blocks  (equivalent to 

.5  one foot block)

2 31-Aug-13 6 11

9  one foot blocks and 6 six inch blocks (equivalent 

to 1.3 one foot blocks)

3 30-Sep-13 6 1717 one foot blocks  have 

been delivered

4 31-Oct-13 7 24  

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Locality Deliveries• The first deliveries – Farmville, Hopewell

and the Eastern Shore (Accomack and Northampton) have been delivered to the locality.

• The upgrade area of The City of Richmond and several additional non-upgrade localities are also currently in the process of packaging for delivery to the locality.

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Oct/Nov Expectations

•Deliverables to the locality include Geotiffs, MrSids, and DTM•Additionally, VGIN will create a MrSid locality mosaic upon request. •The VBMP is on track for all imagery to be delivered to localities by the end of the year

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Questions?

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Thank you!