topographic maps from the national map
DESCRIPTION
Topographic Maps from The National Map. NGAC Meeting February 4, 2009. The National Map. Seamless, continuously maintained, nationally consistent base topographic data Developed and maintained through partnerships Available on-line Source for products and services. Overall Strategy. - PowerPoint PPT PresentationTRANSCRIPT
U.S. Department of the InteriorU.S. Geological Survey
Topographic Maps from The National Map
NGAC Meeting
February 4, 2009
The National Map
Seamless, continuously maintained, nationally consistent base topographic data
Developed and maintained through partnerships
Available on-line Source for products and
services
Overall Strategy
Create next-generation USGS topographic maps 3 year revision cycle following NAIP Source data from The National Map databases
National Transportation Dataset (from Census initially) Names (GNIS, NHD) Cartographic features (Grids, quad level metadata)
Initial product will be basic e-Topo Image Map content Image background Roads Names 1:24,000-scale layout
Map Product evolution Data layers will be added as they become available and
technical processes are in place Elevation data (contours) and Hydrography highest priority
Product Characteristics(It’s not your grandfather’s topographic map)
The product is a plottable digital image. It is neither a GIS dataset nor a traditional paper map, but a new kind of hybrid.
The physical format is GeoPDF, an unpublished and proprietary format that can only be read by specific proprietary software.
The PDF is layered and georeferenced, giving the dataset some limited GIS characteristics.
FY09 Goals and Preparation Produce 15,250 e-Topo Image Maps and make
them available through the USGS Map Store Initial product will be basic e-Topo Image Map
content Image background Roads Names 24K layout
Processes will be managed with Job Tracking Extension (JTX) Multiple parent and child jobs Can be extended to future product(s)
Begin production of AOI phase 1 cartographic data Grids (UTM, state plane, geographic)
FY09 High-level Workflow
Image DataStaging
Production DataPre-processes
CartoData
(Grids &Metadata)
TransReview
NameConflict
MODGeoPDFExport
GeoPDFReview
Distribution
Job Tracking Extension (JTX) Job Management
Data Quality Review
High-level Workflow (level 2)
CartographicData
(Grids &Metadata)
MODGeoPDFExport
Distribution
Job Tracking Extension (JTX) Job Management
AnnotationGeneration
NHD
GNIS
NTD
Image Data
CartoData /Status
Image DataStaging
Annotation Conflict
Labels Conflict
Roads Review Status
GeoPDF ReviewStagedImageData
Data
Near-Term Issues
Short-term ramp-up to get to 15,250 maps/year Standard is still in review/approval process
E-Topo and Image map standard becoming one standard
Data availability to NGTOC locations 1-meter NAIP imagery, leaf on
FY2008 NAIP is not available yet so use FY2007 DOI & USGS now a funding partner to NAIP NAIP is in quarter-quad format
Workflow development
Longer-Term Issues
Data completeness, quality, currency In many cases, there are no national, public domain data
sources available for 1:24,000-scale mapping Boundaries PLSS Structures Transportation (roads, other trans features)
Data integration between themes
Longer-Term Issues
Examples of data integration issues
Poor Registration
Boundaries and Shorelines
Longer-Term Issues
Examples of data integration issues
Roads and Railroads to Contours
Poor Registration
Longer-Term Issues
Examples of data integration issues
Roads to Image
Poor RegistrationRural Roads
Longer-Term Issues
Examples of data integration issues
Lidar-Derived Contours to LakesLidar-Derived Contours to Lakes
Poor Registration
Longer-Term Issues
Examples of data integration issues
Lidar-Derived Contours to LakesLidar-Derived Contours to Lakes
Temporal Difference?
Approach to resolving data integration issues
Inventory and document the types and prevalence of issues
Focus on adding layers to product as data are ready for inclusion
Develop approach and process for integrating hydrography and elevation in FY09
Begin to add these data to the map products in FY10
Summary
The next generation USGS topographic map product will evolve and improve, in terms of content and quality
Near-term challenges include defining the product and putting processes in place to produce in quantity; automation is critical to making this work within existing resources
Longer-term challenges are data-oriented, including consistency, currency, completeness, especially in themes that are not USGS’ A-16 responsibility
Questions?