U.S. Department of the Interior U.S. Geological Survey The National Map Digital Mapping Techniques Workshop Columbus, Ohio June 12, 2006 Charles Hickman

Charles Hickman - Geographer - U.S. Geological Survey Mapping Liaison to Indiana and Ohio 6480 Doubletree Avenue Columbus, Ohio USA (614) NGPO The National Map Find your state NGPO liaison at NSGIC Representatives

The National Map Based on Partnerships LocalState Federal Credit to North Carolina

The National Map Background  55,000 maps / 33,000,000 hours / $1.6 billion  Valuable part of economy and infrastructure  Value is eroding due to age

The National Map Distributed set of consistent, integrated, continually maintained, basic spatial data for the United States. Serve as the Nation's topographic map for the 21 st century.

The National Map: Data Themes Orthorectified imagery Land cover Elevation Transportation (road, rail, other) Hydrography Structures Boundaries (political & admin) Geographic names

The National Map: Characteristics (1) Seamless not quad based Current to days or weeks, not years Basic spatial data Foundation for additional data stable feature identifiers as Velcro reach codes, addresses, linear referencing

The National Map Characteristics (2)  Digital data and paper maps  GIS ready  User friendly  Online access, web accessible, 24-7  Accurate, best available  Public domain, but link to other data  Standardized, consistent, modern datums

The National Map: Characteristics (3)  Integrated themes  Continually maintained  Transactional updates  Feature metadata  Roll back to versions for any point in time  Based on partnerships  Fed by state & local data and knowledge  National coverage  Variable resolution

n Blanket F Consistent F Seamless F Implementation can be more “rich” (aka complicated) F Slower to occur (integration takes time) n Quilt F Less consistent F Has seams F Implementation currently simple F Updates can occur more quickly (less or little integration) F More choices of data The National Map: Blankets and Quilts

Geospatial Web Services Open Geospatial Consortium OGC interface specifications Web map service – returns a picture Web feature service – returns geometry, attributes, and relationships Web coverage service – returns raster-model data

U.S. Department of the Interior U.S. Geological Survey

National Hydrography Dataset (NHD) Combine best of EPA RF3 and USGS DLG 100K first 24K now Many partners Geodatabase model

National Elevation Dataset (NED) Elevation data for  Mapping  Classifying land cover  Producing orthoimagery  Modeling hydrologic and wildland fire processes

National Elevation Dataset (NED) Elevation data for  Mapping  Classifying land cover  Producing orthoimagery  Modeling hydrologic and wildland fire processes

National Land Cover Dataset (NLCD) NLCD 2001 will be part of a land characterization database that also includes:  LANDSAT 7 imagery  Terrain slope, aspect, and elevation  Soil moisture  NLCD 1992  Surface impervious and tree cover  Classification rules

The National Geospatial Program Office Coordination, standards, policy – Federal Geographic Data Committee Discovery and access – Geospatial One Stop Integrated base data – The National Map Coordination & Standards Data Discovery & Access Consistent & Current Content

National Geospatial Programs Office A Unified Approach to the NSDI  Align USGS national geospatial activities and responsibilities  Federal Geographic Data Committee  Geospatial One Stop  National Map  National Atlas  Reaffirm the direction of individual activities  Expand partnership offices  Assess USGS geospatial products and services

Disciplines of the U.S. Geological Survey Geology (GD) Water Resources (WRD) Biological Resources (BRD) Geography GIO, includes NGPO

FGDC

Charles Hickman - Geographer - U.S. Geological Survey Mapping Liaison to Indiana and Ohio 6480 Doubletree Avenue Columbus, Ohio USA (614) NGPO The National Map Find your state NGPO liaison at

Ask USGS Phone ASK-USGS n Web