Index of /unorganized_original_deliveries/IFSAR/IFSAR.Overviews

[ICO]NameLast modifiedSizeDescription

[DIR]Parent Directory  -
[DIR]IFSAR_DSM.Overviews.OLD/01-Oct-2015 12:39 -
[DIR]IFSAR_DSM.Overviews.OLD2/22-Apr-2016 16:33 -
[DIR]IFSAR_DSM.Overviews/26-May-2017 11:20 -
[DIR]IFSAR_DSM_Dev.Overviews/05-Jul-2016 16:04 -
[DIR]IFSAR_DTM.overviews/26-May-2017 09:00 -
[DIR]IFSAR_Legacy_DSM.Overviews/13-May-2016 16:16 -
[DIR]IFSAR_Legacy_DSM2.Overviews/25-Oct-2016 16:13 -
[DIR]IFSAR_Legacy_DSM3.Overviews/26-Oct-2016 13:42 -
[DIR]IFSAR_ORI.Overviews.OLD2/23-Feb-2016 23:35 -
[DIR]IFSAR_ORI.Overviews.OLD3/29-Nov-2016 15:56 -
[DIR]IFSAR_ORI.Overviews/19-May-2017 13:58 -
[DIR]testing_290.Overviews/28-Nov-2016 10:32 -

For a map based interface to this data, please visit: http://maps.dggs.alaska.gov/elevationdata/

These data consists of three products: Bare-earth DEM (DTM), Surface DEM (DSM), and an orthorectified radar intensity image (ORI). The elevation models have a 5-meter post spacing, 22-foot contour equivalent accuracy, vertical accuracy of 3-meter LE90 (0-10 degree slope) and horizontal accuracy of 12.2-meter CE90.

Additionally, edge-matching was performed along the 147th meridian. The edge-match is documented in the report provided with each pair of edge-matched cells. As the edge-match only affected four 15 minute tiles per cell, these folders only contain the tiles modified (no ORI data are included with these tiles). The original, un-modified data along the 147th meridian is provided in the data organized by acquisition company.

All datasets have been processed and delivered in Alaska Albers Equal Area Conic (EPSG:3338), NAD83 horizontal datum and NAVD88 vertical datum. The data includes FGDC Metadata, hydrologic enforcement, quality masks, and no more than 3% of void fill.

Please contact Ken Woods for more information or assistance.