National Geospatial Advisory Committee

THE NATIONAL MAP/ELEVATION UPDATE

Gary ThompsonNGAC Meeting

October 5, 2011

National Geospatial Advisory Committee

USGS Topographic Maps

US Topo The 7.5 minute topographic map series is being published on a three-

year update cycle The program has met its FY 2011 production goal of 18,000 maps More than 50,000 new maps have been published since US Topo

production began in October 2009 Downloads of the GeoPDF format

Have exceeded 750,000 to date

The rate of downloads is increasing

National Geospatial Advisory Committee

The National Geospatial Program (NGP) is converting these historical printed topographic quadrangles to electronic format (GeoPDF) Dual purpose of creating:

A master catalog

Digital archives copies

GeoPDF map availability to the public: Now: Shown in green (90,000)

Fall 2011: Shown in yellow

Winter 2011-2012: Shown in blue

Spring 2012: Shown in purple

Summer 2012 : Shown in orange

USGS Topographic Maps

Historical Maps Prior to 2009, USGS topographic maps were created using traditional

cartographic methods and printed using the lithographic printing process

National Geospatial Advisory Committee

National Enhanced Elevation Assessment

Completed two important tasks during the past quarter Inventoried existing enhanced elevation data

Slightly less than 30% of the continental US has some form of improved and publically available LiDAR or IFSAR elevation data

Nearing completion of the business requirements (needs assessment) phase More than $4B in annual benefits could be realized if a national program were able

to support these needs

NOAA LiDAR workshop Workshop report

http://www.ngs.noaa.gov/corbin/class_description/LiDAR_HM.shtml

National Enhanced Elevation Assessment presentation http://

www.ngs.noaa.gov/corbin/class_description/2011_08_18_NOAA_LiDAR_Workshop_USGS_Distribution_Copy.pdf

National Geospatial Advisory Committee

National Atlas/Alaska Initiative

The National Atlas of the United States of America Base map data at 1:1,000,000 scale Coordination with Canada and Mexico To be released in 2012

Alaska Mapping Initiative USGS provided funding for the cooperative IFSAR acquisition

project in FY 2011 Goal to modernize elevation data in Alaska