Save the date, May 11-12, 2010 – NOAA’s National Geodetic Survey (NGS) will host a summit to share information with other federal agencies on proposed improvements to the National Spatial Reference System (NSRS)—the coordinate system that defines latitude, longitude, height, scale, gravity, and orientation throughout the United States. And get this, Plans for the replacement of the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 1988) will be discussed, and the summit! See details HERE