Arizona Height Modernization Program - AZHMP

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Arizona Height Modernization Program - AZHMP

• Dave Minkel
• NGS Geodetic Advisor to Arizona
• Geospatial Professional, APLS

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Presentation Outline

• Why Did We Pursue a Height Mod Grant?
• Problems with the Network
• Additional Benefits Expected
• How Did We Get an HM Grant?
• Activities
• Documents
• What Do We Plan to Do Under AZHMP?
• Long-term Plan
• Near-term Plan
• Long-term Plan for AZHMP

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Why Did AZ Pursue a Height Mod Grant?

• Vertical Control Network Issues
• Dated
• Latest Campaign Leveling in 1992
• Not All Marks are NAVD 88

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Why Did AZ Pursue a Height Mod Grant?

• Vertical Control Network Issues
• Dated
• Latest Campaign Leveling in 1992
• Not All Marks are NAVD 88
• Subsidence

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1967 - 1980 Elevation Change
DU01050 -2.302 ft
DU01051 -2.282 ft
0.73 miles
2006 Elevation Change (error) could be double,
i.e. -4.604 ft -4.564 ft, from published
1980 elevation (last year of leveling)
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Why Did AZ Pursue a Height Mod Grant?

• Vertical Control Network Issues
• Dated
• Latest Campaign Leveling in 1992
• Not All Marks are NAVD 88
• Subsidence
• Sparse Where We Need It
• Development Bulldozers Lost Marks
• Additional Benefits
• Tie the PLSS to the Network
• GDACS Project

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How Did AZ Get a HM Grant?

• Activities
• HM Forum in 2004
• Congressional Delegation Briefings
• AZ State Cartographer Private Sector
  Representatives
• Local and D.C. Offices Visited
• Consider Congressional Schedule
• Documents
• AZHMP 3-Ring Binder
• Discuss APPLICATIONS BENEFITS to the Public,
  not what youre going to do!
• AZHMP 1-Pagers (Leave Behinds)
• 10-Year Plan
• AZHMP Web Site
• http//agic.az.gov/hm/

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What Do We Plan to Do Under AZHMP?

• Long-term (10-Year) Plan
• Arizona Spatial Reference Center
• AZCORS (CORS/COBS)
• GPS Statewide Network ( 3800 stations)
• Uses GDACS Model (i.e. near PLSS Corners)
• Leveling
• Analysis of Network
• Leveling
• Support/Research

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AZHMP 10-Year Plan
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What Do We Plan to Do Under AZHMP?

• Long-term (10-Year) Plan
• Arizona Spatial Reference Center
• AZCORS (CORS/COBS)
• GPS Statewide Network (3800 stations)
• Leveling
• Analysis of Network
• Leveling
• Support/Research
• Near-term Plan (FY06 Funding)
• Establish AZCORS

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Long-term Plan for AZHMP

• Build Partnerships with Federal, State and Local
  Agencies
• Utilize Partner Resources to Implement AZHMP and
  Gain Additional Program Support
• Seek Additional Funding Sources
• FEMA Grant(s)
• Demonstrate and Document Public Benefits of AZHMP
• Migrate AZHMP from Grant-based Funding to State
  Programmatic Funding

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Do You Need a HM Grant to Move Forward?

• Gila County
• Approximately 122 Stations set
• FEMA partnership on Tonto Basin saved 265K
  30 sq. mi.
• 28 savings on aerial mapping costs
• Cochise County
• Approximately 138 Stations Set
• Requiring ties to network for County GIS
• 38 Stations in Last Survey
• 2 Companies Turned Down