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GRAV-D Project Update

GRAV-D Project Update. Vicki Childers, Ph.D., Project Mgr Observations and Analysis Division. Aerogravity Data Collection. FY 2010-11: Alaska (Anchorage, Fairbanks, and Arctic regions) California/Oregon coastline Eastern Great Lakes: Lakes Ontario and Erie

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GRAV-D Project Update

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  1. GRAV-D Project Update Vicki Childers, Ph.D., Project Mgr Observations and Analysis Division Height Modernization Partners Meeting, Silver Spring, MD

  2. Aerogravity Data Collection • FY 2010-11: • Alaska (Anchorage, Fairbanks, and Arctic regions) • California/Oregon coastline • Eastern Great Lakes: Lakes Ontario and Erie • As of June 1, 13.45% of total area has been surveyed • FY2012: • Great Lakes region: Lake Michigan • Washington State/California • Alaska (either SE or western coast) • FY2013: • Finish Great Lakes: Lakes Superior and Huron • TBD Height Modernization Partners Meeting, Silver Spring, MD

  3. GRAV-D Aircraft • NOAA • Turbo Commander • NOAA P-3 Hurricane Hunter • DOI Bureau of Land Management • Pilatus PC-12 • Fugro • King Air E-90A Height Modernization Partners Meeting, Silver Spring, MD

  4. Alaska FY11 West Coast FY11-12 (FY11 Already Flown) FY11-13 Great Lakes Plan FY10 = Green FY11 = Blue FY12 = Orange FY13 = White Height Modernization Partners Meeting, Silver Spring, MD

  5. New Absolute Gravimeter • New A10 acquired from Micro-g LaCoste in January, 2011 • Tim Wilkins has re-measured all gravity ties for airborne surveys since the beginning • Agreement between old and new measurements: ~5 μGal • A10 measurements for Texas Geoid Slope Validation Survey • 5 relative L&R meters have been upgraded for data logging Height Modernization Partners Meeting, Silver Spring, MD

  6. GRAV-D Processing Update • Alabama 2008 (AL08) survey already delivered to Geoid team (Newton v1.2) • AL08 airborne gravity data are released to the public by COB today • Data available through GRAV-D web site on NGS page • LA/TX surveys slated for next release, then AK08 and 09. Height Modernization Partners Meeting, Silver Spring, MD

  7. GRAV-D Data Distribution Height Modernization Partners Meeting, Silver Spring, MD

  8. Height Modernization Partners Meeting, Silver Spring, MD

  9. Height Modernization Partners Meeting, Silver Spring, MD

  10. Download data Height Modernization Partners Meeting, Silver Spring, MD

  11. Summary • On track for “stretch goal” completion of data collection for FY11 • Data release today of AK08 • Working a collaboration with USGS Denver group on simultaneous magnetometer measurements • Still seeking a dedicated plane Height Modernization Partners Meeting, Silver Spring, MD

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