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MGISAC North-East Workshop Oct 26, 2009 Imagery for the State The Missouri leaf-off Orthoimagery Project 2007-2008-2009 Ray Fox USGS Geospatial Liaison.

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Presentation on theme: "MGISAC North-East Workshop Oct 26, 2009 Imagery for the State The Missouri leaf-off Orthoimagery Project 2007-2008-2009 Ray Fox USGS Geospatial Liaison."— Presentation transcript:

1 MGISAC North-East Workshop Oct 26, 2009 Imagery for the State The Missouri leaf-off Orthoimagery Project Ray Fox USGS Geospatial Liaison to Missouri Chair-MGISAC Data Development Subcommittee

2 MGISAC North-East Workshop Oct 26, 2009 Two Foot Resolution

3 MGISAC North-East Workshop Oct 26, 2009 What we need to cover (some material courtesy of Surdex) What is an orthophoto, and a quarter- quadrangle Imagery for the State, –how it came about –What we got How to access the data Buy – Up options still exist Plans for future state-wide acquisitions

4 MGISAC North-East Workshop Oct 26, 2009 BIG NEWS!!!! As of October 14, 2009 all deliveries have been accepted. We are done Thanks to the GIO office for managing the project. Thanks to the USGS NGTOC and MoDOT for the acceptance work. Thanks to Surdex for being such a good partner.

5 MGISAC North-East Workshop Oct 26, 2009 What is an Orthoimage? The FGDC “Framework Introduction and Guide” explains that “Orthoimagery provides a positionally correct image of the earth. An orthoimage is a georeferenced image prepared from an aerial photograph or other remotely sensed data from which displacements of images caused by sensor orientation and terrain relief have been removed.”[1][1] [1] Page 18, “Framework Introduction and Guide,” Federal Geographic Data Committee, Washington D.C., 1997.

6 MGISAC North-East Workshop Oct 26, 2009 What is a DOQQ? A DOQ is an orthoimage fit to the USGS 7.5 minute quadrangle. The DOQQ is a higher resolution image that encompasses ¼ of a 7.5-minute quadrangle (DOQQ means Digital Orthophoto Quarter Quadrangle). The Missouri Imagery for the State Project is in the DOQQ format.

7 MGISAC North-East Workshop Oct 26, 2009 USGS Quarter-Quadrangle

8 MGISAC North-East Workshop Oct 26, 2009 Characteristics of a DOQQ Digital aerial photos that have been rectified so they can be used like a map Meet the National Map Accuracy Standards for 1:12,000 scale Used as a base map for many applications - most accurate, up to date base map readily available

9 MGISAC North-East Workshop Oct 26, 2009 Digitally scanned aerial photograph Digital Elevation Model Camera Position/Orientation Data Known Ground Positions Digital Orthophoto Automated Rectification Process Components

10 MGISAC North-East Workshop Oct 26, 2009 How it all came about The need for state-wide orthoimagery for Missouri was identified as a primary requirement by the Missouri GIS Advisory Committee (MGISAC). A Data Development Sub-Committee was formed and held its first open meeting on July 8, 2004 in Rolla.

11 MGISAC North-East Workshop Oct 26, 2009 Orthoimagery in Missouri Missouri had leaf off black and white digital quarter-quadrangle orthophotos last made in The National Aerial Imagery Program or NAIP has been flown for Missouri since This imagery is leaf-on, flown for the USDA. These products are one-meter pixel

12 MGISAC North-East Workshop Oct 26, 2009 State and Federal Requirements While the State was receiving the NAIP imagery, many agencies needed leaf-off imagery for their work. The USGS also needed leaf-off imagery. The one meter imagey is acceptable for both partners but we also wanted to meet the needs of local government if possible

13 MGISAC North-East Workshop Oct 26, 2009 First Efforts Regional Planning Commissions engaged to help gather requirements from local government. On line questionnaire developed by MSDIS. RPC’s sent letters and to local governments asking them to participate in questionnaire

14 MGISAC North-East Workshop Oct 26, 2009

15 MGISAC North-East Workshop Oct 26, 2009 Desire to meet the needs The contract was not ready in time for the 2007 flight. Plan was to allow local government to utilize the contract for their imagery. Surdex had an existing State contract with MoDOT which was used in Surdex proposed a 2 foot product for minimal extra cost.

16 MGISAC North-East Workshop Oct 26, 2009 Moving On In 2008 a Request for Proposals was let by the state with options for local government to be able to utilize the contract. Surdex won the award and began flying the western side of the state, again at the two foot resolution.

17 MGISAC North-East Workshop Oct 26, 2009 Promoting the Opportunity The MGISAC Data Development Committee realized that the word had not gotten out on use of the contract by local government. Members spoke at meetings across the state and wrote three white papers on the project

18 MGISAC North-East Workshop Oct 26, 2009 The Missouri Orthophotography Project First of a series How to Participate Second in a Series Funding Strategies Third in a Series

19 MGISAC North-East Workshop Oct 26, 2009 Western Side Challenges We were once again late in having the contract awarded which shortened the flying season Missouri enjoyed spring floods and an ice storm which made collection even more challenging. As a result we ran out of time and the project had to be extended to 2009.

20 MGISAC North-East Workshop Oct 26, 2009 Data Availability

21 MGISAC North-East Workshop Oct 26, 2009 Data Availability, cont.

22 MGISAC North-East Workshop Oct 26, 2009 Other Information The buy up option has been extended through Several local governments are taking advantage of this All buy-up options are handled directly by Surdex. Please let the GIO office know if you intend on using the State contract

23 MGISAC North-East Workshop Oct 26, 2009 The Future? Imagery has a short shelf life. Things change quickly and new imagery is needed. We are working on developing a cyclic program, which is a challenge in these budget times. Desire was to embark on another round this year but it probably won’t happen that fast.

24 MGISAC North-East Workshop Oct 26, 2009

25 MGISAC North-East Workshop Oct 26, 2009 How to stay in touch Go to the MGISAC webpage at Contacts: – Tim Haithcoat, GIO for Missouri at –Ray Fox, USGS Geospatial Liaison to Missouri at –Mark Duewell, MSDIS GIS Project Manager at

26 MGISAC North-East Workshop Oct 26, 2009 State Capital


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