GRAV-D News: 2007 Feb 12: NGS Releases Draft of 10 Year Plan

On February 12th, 2007 the NGS Executive Steering Committee approved the public release of the NGS 10 year plan. That document was the first official announcement by NGS of its intention to re-define the vertical datum of the United States through the combination of GNSS technology combined with a gravimetric geoid model. Details and the draft 10 year plan can be found here.

Following that release, work was begun on an official gravity survey plan to support this decision. Eventually, that plan came to be known as "GRAV-D".