National Spatial Reference System: Present and Future Marti Ikehara, Geodetic Advisor NOAA’s NGS, Sacramento

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Presentation transcript:

National Spatial Reference System: Present and Future Marti Ikehara, Geodetic Advisor NOAA’s NGS, Sacramento

To define, maintain and provide access to the National Spatial Reference System (NSRS) to meet our Nation’s economic, social and environmental needs. National Geodetic Survey Mission Latitude Longitude Height Scale Gravity Orientation Time Variations

NOAA’s Geospatial Foundation NOAA’s National Geodetic Survey provides the geospatial underpinning that allows integration of all georeferenced data layers. The positional framework we provide is crucial to supporting the agency’s and the nation’s data collection, validation, and updating efforts. Geodetic Control Aerial Imagery Elevation Boundaries Surface Waters Transportation Land Ownership

The NSRS Supports: United States Geological Survey USGS uses the NSRS to geospatially reference their Topographic Maps

The NSRS Supports: FEMA uses NSRS elevations to determine flood zones for the National Flood Insurance Program Federal Emergency Management Agency

The NSRS Supports: NSRS positioning data provides the reference for NOAA’s Nautical Charts, among many other geospatial applications. National Oceanic and Atmospheric Administration

How We Maintain and Modernize the NSRS GPS/GNSS ReceiversLevelingGeoid Modeling

National Adjustment 2011: Updating the NSRS over Time

Epoch (only) 3 years

Geodetic Reference Frames past and present xxxxxxx x xxxxxxxxxxx

NAD83 (HARN) Datum Tags and Epochs in CA

To define, maintain and provide access to the National Spatial Reference System (NSRS) to meet our Nation’s economic, social and environmental needs. National Geodetic Survey Mission Latitude Longitude Height Scale Gravity Orientation Time Variations GNSS reference frame

GEOID12 (with OPUS data) geoid heights

Coming Soon: Error Maps for GEOID12A Rigorous LSC was used in GEOID12A This ensured we had a var-cov matrix to estimate errors on a regular grid This means errors can be provided with geoid heights

Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Progress

Geodesy.noaa.gov or ngs.noaa.gov 16

NGS 10-year Plan: Support users of NSRS 2.Modernize and improve NSRS 3.Expand NSRS Stakeholder Base 4.Develop NGS Workforce Marti Ikehara (916)

DSWorld: mapping tool and more Need to have Google Earth installed Tools, Download PC Software, USER-CONTRI- BUTED SOFTWARE, DSWorld index.shtml FIRST: Tools, Update program Enhancement enables you to distinguish VERTCON NAVD88 from other(control) NAVD88