# Presentation: 083385

## Height Modernization

**National and Kentucky Programs**

- 2007 KAPS Conference
- Bowling Green, Kentucky
- February 16, 2007

**Ross Mackay**
**Kentucky Geodetic Advisor**

## Elevation and the Geoid

**Elevation and the Geoid**

**h**

- Topographic
- Surface

- h = Ellipsoidal Height

**Elevation and the Geoid**

- Ellipsoid

- Geoid

**H**

## N

**H**

**h**

**Ellipsoid**

**H = Elevation ****(Orthometric Height)**

**N**

**Geoid**

**Topographic**
**Surface**

**h = Ellipsoidal Height ****(from GPS)**

**N = Geoid Height ****(from Geoid model)**

**= ****h**** - ****N**

**N**

**H**

_**h**_

**Elevation and the Geoid**

## Hybrid geoid model

-  Gravity
-  Leveling
-  GPS
-  best fit to NAVD 88

**Elevation and the Geoid**

## Elevation and the Geoid

**Elevation and the Geoid**

## Slide 7

## Kentucky Height Modernization

- Grant recipient from NOAA
- Submit application and project reports for Grant
- Develop Kentucky CORS Data Archive Center
**KY Division of Geographic Information**
- Provide overall Height Modernization project management
- Develop project charters, plans and agreements
**Kentucky Transportation Cabinet **
- Install and provide ongoing support of CORS sites
- Manage the award of contracts and oversight of the work

**Kentucky Height Modernization**

## Slide 9

## Kentucky Height Modernization

**Kentucky Height Modernization**

## Kentucky Height Modernization

**Kentucky Height Modernization**

**Site Visits**

- CORS Installation Requirements
-   Stable site with minimal obstructions
-   Uninterrupted Power Supply
-   Internet Connection
-   Secure Area

## Kentucky Height Modernization

**Delivery**: May 16, 2006

**Kentucky Height Modernization**

## Kentucky Height Modernization

**Kentucky Height Modernization**

## Kentucky Height Modernization

**Kentucky Height Modernization**

## Kentucky Height Modernization

**Kentucky Height Modernization**

## Kentucky Height Modernization

**Kentucky Height Modernization**

## Kentucky Height Modernization

**Kentucky Height Modernization**

## Kentucky Height Modernization

**Kentucky Height Modernization**

## Kentucky Height Modernization

**Kentucky Height Modernization**

## KYTC & COT Partners

**KYTC & COT Partners**

**Kentucky Height Modernization**

**Perry Semones**

**Larry Britton  **

**Danielle Buchanan**

## Benefits of Height Mod For KYTC

-   $2500 - $3000 Saved per Project for Horizontal Control
-   $10,000 - $12,000 Saved per Project for Vertical Control
-   An average of 50 projects per year yields a savings of $625,000 – ~25% **above** the Height Mod investment for one year.
-   Highway Districts also benefit by having a permanent CORS - savings gained from reduced equipment costs.

**Kentucky Height Modernization**

## Slide 22

## National CORS

-  990 National CORS
-  166 Cooperative CORS
- February 5, 2007

**National CORS**

## National CORS

**National CORS**

**“****These look like some of the best CORS sites that  I've seen.” – Don Haw, NGS CORS team member**

## National CORS

**A. General Site Operator Requirements **
**B. Monument**
- B.1. Stability
- B.2. Location, Obstructions, and Radio Frequency B.2.a. Location
- B.2.b. Obstructions
- B.2.c. Radio Frequency Environment
- B.3. Ground-based
- B.3.a. Pillar
- B.3.b. Braced
- B.4. Roof-based Monument
- B.4.a. Building Characteristics
- B.4.b. Location and Attaching to a Building
- B.5. Attaching Antenna, Mount and Monument
- B.6. Orienting Antenna
- B.7. Antenna Cable
**C. Equipment**
- C.1. Antenna
- C.2. Antenna Radome
- C.3. Receiver, Settings, and Power Supply
**D. Communications, and Data Archiving**
**E. Site Metadata**
- E.1. Digital Photographs
- E.2. Site Log

**Guidelines for New and Existing Continuously**
**Operating Reference Stations (CORS)**
**National Geodetic Survey**
**National Ocean Survey, NOAA**
**Silver Spring, MD 20910**
- February 2006

**National CORS**

## National CORS

** ****KYTG Site Information Form (site log)**
**     ****NGS CORS**
**     ****See Instructions at: http://www.ngs.noaa.gov/PUBS_LIB/CORS_guidelines.pdf**
**0.   Form**
**     ****Prepared by (full name)  : DANIELLE BUCHANAN**
**     ****Date Prepared            : 2006-08-30**
**     ****Report Type              : NEW**
**1.   Site Identification of the GNSS Monument**
**     ****Site Name                : KYTC HIGHWAY DISTRICT 7**
**     ****Four Character ID        : KYTG**
**     ****Monument Description     : ALUMINUM BRACKET ON MASONRY WALL          **
**       ****Height of the Monument : 10 M.(APPROX.)ABOVE GROUND                                     **
**       ****Monument Foundation    : MASSIVE BUILDING FOUNDATION               **
**     ****Marker Description       : SCIGN adaptor**
**     ****Date Installed           : 2006-05-31**
**     ****Geologic Characteristic  : TANGLEWOOD LIMESTONE MEMBER                         **
**       ****Bedrock Type           : LIMESTONE WITH MINOR SHALE INTERBEDS                                                            **
**       ****Fault zones nearby     : LEXINGTON FAULT SYSTEM                                         **
**         ****Distance/activity    : 15,000 FT SE / INACTIVE                             **
**     ****Additional Information   : QUARRIES/MINES: VULCAN LIMESTONE MINE, 11,000 FT SW      **
**	****	****  ****GEOLOGIC INFORMATION PROVIDED BY DR. JERRY WEISENFLUH, KGS  **
**2.   Site Location Information**
**     ****City or Town             : LEXINGTON       **
**     ****State or Province        : KENTUCKY        **
**     ****Country                  : USA             **
**     ****Tectonic Plate           : NORTH AMERICA   **
**       ****Latitude (N is +)      : +380431.96**
**       ****Longitude (E is +)     : -0842931.91**
**       ****Elevation (m,ellips.)  : 265.1**
**     ****Additional Information   : (multiple lines)**
**3.   GNSS Receiver Information**
**3.1  Receiver Type            : TRIMBLE NETR5**
**     ****Satellite System         : GPS+GLONASS**
**     ****Serial Number            : 4618K01153**
**     ****Firmware Version         : 3.10**
**     ****Elevation Cutoff Setting : 10**
**     ****Date Installed           : 2006-05-31**
**4.   GNSS Antenna Information**
**4.1  Antenna Type             : TRM55971.00**
**     ****Serial Number            : 30137283**
**     ****Antenna Reference Point  : BAM**
**     ****Marker->ARP Up Ecc. (m)  : TO BE DETERMINED **
**     ****Marker->ARP North Ecc(m) : 000.0000**
**     ****Marker->ARP East Ecc(m)  : 000.0000**
**     ****Alignment from True N    : -0.0833 deg**
**     ****Antenna Cable Type       : TRIMBLE 41300-30 REVA DCA 0610**
**     ****Antenna Cable Length     : 30 M**
**     ****Date Installed           : 2006-05-11**

**Site Log File**

## National CORS

**National CORS**

## Slide 28

## Kentucky Height Mod: What’s next?

- KY Height Mod Pilot Region

**Kentucky Height Mod: What’s next?**

***Last Year’s Model...***

## Kentucky Height Mod: What’s next?

**Kentucky Height Mod: What’s next?**

## H = h - N

**H**** = ****h**** - ****N**

**Kentucky Height Mod: What’s next?**

## Kentucky Height Mod: What’s next?

## Kentucky Height Mod: What’s next?

## Slide 34

## National Readjustment, NAD83(NSRS2007)

## National Readjustment, NAD83(NSRS2007)

-  Only GPS has been adjusted.
-  The CORS stations served as control, CORS(2002)
-  Network and local accuracies have been implemented
-  Datasheets not yet available.
-  Both NAD 83 and ITRF coordinates will be produced and published.
-  Data available in Readjustment Distribution Format (RDF)

**National Readjustment, NAD83(NSRS2007)**

## National Readjustment, NAD83(NSRS2007)

** *****A1*                                                                      **
**      *****10*ky.bfile                                                              **
**      *****13*NAD 83(NSRS 2007)                                                     **
**HZ2483*80*0001PISGAH 2 RESET                38025475240N084391492065W       KY  **
**HZ2483*86*0001                                256104                            **
**GZ1222*80*0002M 154 RESET                   37592167847N084315027428W       KY  **
**GZ1222*86*0002                                276428                            **
**GZ2558*80*0003ROBB RESET                    37563532212N084331236840W       KY  **
**GZ2558*86*0003                                285372                            **
**GZ3070*80*0004LFUCG GPS STA 0029            37563416073N084295602129W       KY  **
**GZ3070*86*0004                                250922                            **
**HZ1856*80*0005A 145 RESET                   38024283402N084342106297W       KY  **
**HZ1856*86*0005                                260146                            **
**GZ2896*80*0006COMBS                         37533423194N084171921273W       KY  **
**GZ2896*86*0006                                271861                            **
**GZ3069*80*0007LFUCG GPS STA 0001            37525876824N084235309452W       KY  **
**GZ3069*86*0007                                261925                            **
**HZ1984*80*0008GEORGETOWN RESET              38115683816N084323111820W       KY  **
**HZ1984*86*0008                                249376                            **
**GZ3094*80*0009LFUCG GPS STA 0070            37570999009N084272018803W       KY  **
**GZ3094*86*0009                                262872                            **
**GZ3087*80*0010LFUCG GPS STA 0063            37575701433N084280020821W       KY  **
**GZ3087*86*0010                                270100                            **
**HZ0162*80*0011I75 T 78 AZ MK                38021283676N084240349241W       KY  **
**HZ0162*86*0011                                273295                            **
**GZ3074*80*0012LFUCG GPS STA 0050            37592673348N084260134752W       KY  **
**GZ3074*86*0012                                265311                            **
**GZ3086*80*0013LFUCG GPS STA 0062            37583525771N084275187363W       KY  **
**GZ3086*86*0013                                280485                            **
**GZ3077*80*0014LFUCG GPS STA 0053            37592735030N084294281391W       KY  **
**GZ3077*86*0014                                259798                            **

**National Readjustment, NAD83(NSRS2007)**

## Slide 38

## Planning at NGS

**Spatial Reference System to meet our nation’s economic,**
**social, and environmental needs**
- and
- •** ****To be a world leader in geospatial activities, including the**
**development and promotion of standards, specifications, and guidelines.**

**Mission of NGS**

** ****FY07 NGS Annual Guidance Document**
** ****NGS 10 Year Plan**
** ****FY07 NGS Execution Plan**
** *****Improve Communication with NGS Stakeholders***

**Planning Procedure**

**Planning at NGS**

## Key visions, related to the Mission

Define the NSRS
The NSRS must be more accurate than all activities which build upon it, while still being practicably achievable.

Maintain the NSRS
NGS must track all of the temporal changes to the defining points of the NSRS in such a way as to always maintain the accuracy in the NSRS definition.

Provide Access to the NSRS
“NGS must develop and maintain guidelines for users to access the NSRS at a variety of accuracies.”
“NGS will publish all coordinates of defining points of the NSRS with an epoch tag and will furthermore publish velocities relative to that epoch-tagged set of coordinates”

Be a world leader in geospatial activities
“NGS should completely revisit, rewrite or create new standards, specifications and guidelines documents, as well as retiring out-of-date versions of these documents” 

**Define the NSRS**
- The NSRS must be _*more accurate*_ than all activities which build upon it, while still being practicably achievable.
**Maintain the NSRS**
- NGS must _*track all of the temporal changes*_ to the defining points of the NSRS in such a way as to always maintain the accuracy in the NSRS definition.
**Provide Access to the NSRS**
- “NGS must develop and maintain guidelines for users to access the NSRS at _*a variety of accuracies*_.”
- “NGS will publish _*all coordinates*_ of defining points of the NSRS _*with an epoch tag and*_ will furthermore publish _*velocities*_ relative to that epoch-tagged set of coordinates”
**Be a world leader in geospatial activities**
- “NGS should completely revisit, rewrite or create _*new standards, specifications and guidelines documents*_, as well as _*retiring out-of-date versions*_ of these documents”

**Planning at NGS**

## In order to achieve the vision,
these areas of emphasis must drive all future NGS activities

Modernize CORS
	(NGS owned and operated Foundation CORS?)

Improve gravity field modeling
	(Define North American vertical datum through GNSS and a gravimetric geoid?)

Migrate the coastal mapping program toward IOCM
	(Fully integrate NGS shoreline activities with other NOAA coastal mapping)

Add and improve core capabilities
	(Retrain and retool NGS workforce, Modernize tools)

Implement a global leadership strategy
	(Standards & specifications, educational initiatives, increased publication)

**these areas of emphasis must drive all future NGS activities**
**Modernize CORS**
- 	(NGS owned and operated Foundation CORS?)
**Improve gravity field modeling**
**	**(Define North American vertical datum through GNSS and a gravimetric geoid?)
**Migrate the coastal mapping program toward IOCM**
**	**(Fully integrate NGS shoreline activities with other NOAA coastal mapping)
**Add and improve core capabilities**
**	**(Retrain and retool NGS workforce, Modernize tools)
**Implement a global leadership strategy**
**	**(Standards & specifications, educational initiatives, increased publication)

**Planning at NGS**

## ross.mackay@ky.gov

**Kentucky Geodetic Advisor**

**ross.mackay@ky.gov**
***on the web at***
**ngs.ky.gov**
**(502) 564-1450**