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Generalization for The National Map
To meet the goals of The National Map the USGS must accept high-resolution data from local, State, and other sources and merge these data into a consistent framework at an appropriate resolution. To the extent possible, this process should be automated, transparent to users, and occur in real-time as part of The National Map Viewer or the data delivery system. Part of this process will require spatial data generalization.
- Publications and Reports
- Generalization for The National Map with emphasis on the NHD - Abstract from the 25th ESRI International User Conference, July 25 – 29, 2005 (10k pdf file)
- Estimation of Accumulated Upstream Drainage Values in Braided Streams Using Augmented Directed Graphs - Paper from the Auto-Carto 2006, A Cartography and Geographic Information Society Research Symposium, Vancouver, WA. June 25-28, 2006 (204k pdf file)
- Assessment of a Rapid Approach for Estimating Catchment Areas for Surface Drainage Lines - Paper from the American Congress on Surveying and Mapping Annual Conference, St. Louis, MO. Mar 9-12, 2007 (456k pdf file)
- Development of a Knowledge-Based Network Pruning Strategy for Automated Generalisation of the United States National Hydrography Dataset - Paper from the 11th ICA Workshop on Generalisation and Multiple Representation, Montpellier, France. June 20-21, 2008 (4.1mb pdf file)
- Presentations
- Generalization for The National Map with emphasis on the NHD – from the 25th ESRI International User Conference, July 25 – 29, 2005 (4mb ppt file)
- Estimation of Accumulated Upstream Drainage Values in Braided Streams Using Augmented Directed Graphs - from the Auto-Carto 2006, A Cartography and Geographic Information Society Research Symposium, Vancouver, WA. June 25-28, 2006 (3.5mb ppt file)
- Assessment of a Rapid Approach for Estimating Catchment Areas for Surface Drainage Lines - from the American Congress on Surveying and Mapping Annual Conference, St. Louis, MO. Mar 9-12, 2007 (5.1mb ppt file)
- Development of a Knowledge-Based Network Pruning Strategy for Automated Generalisation of the United States National Hydrography Dataset - from the 11th ICA Workshop on Generalisation and Multiple Representation, Montpellier, France. June 20-21, 2008 (14.5mb ppt file)
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U.S. Department of the Interior |
U.S. Geological Survey