1 / 18

Topographic Maps from The National Map

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.

macon-park
Télécharger la présentation

Topographic Maps from The National Map

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Topographic Maps from The National Map NGAC Meeting February 4, 2009

  2. The National Map • Seamless, continuously maintained, nationally consistent base topographic data • Developed and maintained through partnerships • Available on-line • Source for products and services

  3. 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

  4. 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 • The physical format is GeoPDF, an unpublished and proprietary format that can only be read by specific proprietary software.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.

  5. 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)

  6. FY09 High-level Workflow Image Data Staging Production Data Pre-processes MOD GeoPDFExport GeoPDF Review Carto Data (Grids & Metadata) Trans Review Name Conflict Distribution Data Quality Review Job Tracking Extension (JTX) JobManagement

  7. Image Data Image Data Staging Staged Image Data MOD GeoPDFExport GeoPDF Review Distribution GNIS Annotation Generation Annotation Conflict Carto Data / Status NHD Cartographic Data (Grids & Metadata) Labels Conflict NTD Roads Review Status Data Job Tracking Extension (JTX) JobManagement High-level Workflow (level 2)

  8. 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

  9. 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

  10. Longer-Term Issues • Examples of data integration issues Boundaries and Shorelines Poor Registration

  11. Longer-Term Issues • Examples of data integration issues Roads and Railroads to Contours Poor Registration

  12. Longer-Term Issues • Examples of data integration issues Roads to Image Poor Registration Rural Roads

  13. Longer-Term Issues • Examples of data integration issues Lidar-Derived Contours to Lakes Poor Registration

  14. Longer-Term Issues • Examples of data integration issues Lidar-Derived Contours to Lakes Temporal Difference?

  15. 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

  16. 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

  17. Questions?

More Related