As you heard from Juliana's presentation yesterday, 2022 NAD 83 and NAVD 88 will be replaced with a geometric and geopotential reference frame. So the first paragraph is just the basic information about some technical information about the new reference frames. Key difference is we're going from a plate fixed datum to a reference frame that includes the velocities of the coordinates. So I was involved in when we went from NAD 27 to NAD 83 and NGVD 29 to NVA 88. And it was a learning curve. And so we need to do the same thing. We need to prepare our users for this because this will be a little different transformation than when we've gone from previous datums because those were both plate fixed to plate fixed. So you see on the, go down to the second page and there's a graphic. You can see the extent of the change or the estimated change in the horizontal will be approximately one to two meters. And then the ellipsoid height, the component of the
As you heard from Juliana's presentation yesterday, 2022 NAD 83 and NAVD 88 will be replaced with a geometric and geopotential reference frame. So the first paragraph is just the basic information about some technical information about the new reference frames. Key difference is we're going from a plate fixed datum to a reference frame that includes the velocities of the coordinates. So I was involved in when we went from NAD 27 to NAD 83 and NGVD 29 to NVA 88. And it was a learning curve. And so we need to do the same thing. We need to prepare our users for this because this will be a little different transformation than when we've gone from previous datums because those were both plate fixed to plate fixed. So you see on the, go down to the second page and there's a graphic. You can see the extent of the change or the estimated change in the horizontal will be approximately one to two meters. And then the ellipsoid height, the component of the
0316NOAA-HSRP.docx