coastal zone 2011 conference “cool geodetic resources for your project” a national ocean...
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Coastal Zone 2011 Conference
“Cool Geodetic Resources For Your Project”A National Ocean Service, NOAA, Presentation
1) TOOLS TO OBTAIN GEODETIC CONTROLJohn Ellingson, National Geodetic Survey
2) GEODETIC &TIDAL DATUMS and USING VDATUMMarti Ikehara, National Geodetic Survey
3) INTERNATIONAL GREAT LAKES DATUM OVERVIEWStephen Gill, Center for Operational Oceanographic Products and Services
Objectives
• Demonstrate new tools for obtaining Geodetic Control from the “PASSIVE” network (marks in the ground)
• Inform you how to obtain Geodetic Control from the “ACTIVE” network (CORS)
• Briefly explain the NGS Geodetic Advisor Program and its benefits to users
“PASSIVE” NETWORKNational Spatial Reference System
(NSRS), marks in the ground.
1.5 million marks in theNational Geodetic Survey database.
These marks provide:
• Horizontal position, or
• Horizontal position and ellipsoid height, or
• Orthometric Heights, or
• Both Horizontal and Vertical values
• Tidal Information
“DSWorld” Software Program
• Highly rated new NGS software tool
• Developed to search the NGS database
• Easy to learn/use
• Multiple search options available
• Displays search results using Google Earth
DSWorld opening screen
Lat-Lon-Radius Search Option
Click here to start your search
State - County Search Option
“Search by County” resultsFlorida – Nassau County was selected
Zooming-in to our area of interest….
Sample datasheet
Sample datasheet (continued)
Start by downloading “Google earth” at: http://earth.google.com/download-earth.html
Click here
Roll Pointer over“TOOLS” button
“DOWNLOAD PC
SOFTWARE”
Open the NGS main page at www.geodesy.noaa.gov
Click here
Next, click on the link: “User-Contributed Software is also available…..”
Next, click on the DSWORLD (Version *.**) link. A “file download” window will appear. Choose to save the file where you can easily find it. It will be a zip file, so you will need to unzip it. Then double-click on the “setup.exe” file. That will install the program for you.
For additional information or assistance, please contact Wisconsin State Geodetic AdvisorJohn Ellingson by telephone at 202-306-6904, or by email at [email protected] ,
“ACTIVE” Geodetic Network
This is the Geodetic Network
of
Continuously Operating Reference Stations
known as CORS
The NGS network of Continuously Operating
Reference Stations (CORS)
CORS NETWORK FactsCurrently over 1,800 sites and expanding rapidly -
nearly all are owned by our partnersOver 200 partners contribute to network- Government
(all levels) , Academia, and Private OrganizationsEnables GPS users to determine precise positional
coordinates relative to NSRSUsed by Surveyors, Scientists, Meteorologists, et alBackbone of the NGS OPUS productsApprox. 175,000 positions calculated using CORS
network in first half of 2011NGS CORS Newsletter available on NGS website
Obtain Static Data Files for CORS Here
CORS “Data Products” Page
Provide information about your project
Enter your custom requests
“ACTIVE” Geodetic Network
OPUS Solutions(Online Positioning User Service)
based on
National Geodetic Survey CORS network
“OPUS” Online Positioning User Service
• OPUS – RS (15 min to 2 hrs of obs.)
• OPUS –S (2 hrs to 48 hrs of obs.)
• OPUS – DB (>4 hrs of obs.) publish your info
Coming Soon:
• OPUS – Projects (beta)
OPUS Submission Webpage
Your email address
Location of your data file
Your antenna type
Antenna height
Customize your solution - details on next slide
Under the “OPTIONS” tab in OPUS
OPUS Projects ID
Include-Exclude CORS here
SPCS overruleChange Geoid Model
Publish in OPUS-DB?
Select one to start computation process
OPUS Response to My Upload……
OPUS REPORT
The National Geodetic Survey Geodetic Advisor Program
Advisor serves as a resource……
to assist Federal, State and local government agencies, academia, and the private sector to obtain the best results for their surveying and mapping projects.
Advisor Status In Your State
For further information or assistance:
Useful links:
NGS Home Page: http://www.geodesy.noaa.gov
CORS Webpage: http://www.ngs.noaa.gov/CORS/
OPUS Webpage: http://www.ngs.noaa.gov/OPUS/
Find Your Advisor:www.ngs.noaa.gov/ADVISORS/AdvisorsIndex.shtml
This presentation will be uploaded to:http://www.ngs.noaa.gov/web/science_edu/presentations_archive/
[email protected] 240-306-6904