Scientific Investigations Report 2012–5167
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First posted August 20, 2012 For additional information contact: Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge. |
Tyler, D.J., and Greenlee, S.K., 2012, Creation of digital contours that approach the characteristics of cartographic contours: U.S. Geological Survey Scientific Investigations Report 2012–5167, 31 p. with appendixes.
Abstract
Introduction
Characteristics of the Contour Generation Process
Cartographic Rules for Digital Contours
Practical Considerations
Limitations of the Contour Dataset
Required Input Data
Input Data Quality Issues
Data Quality Issues in the NED
Examples of Errors and Artifacts in the NED
Examples of Errors and Problems in the NHD
Pre-Processing Steps
Processing Steps
Locate Potential Problems
Post-Processing Steps
Resources Required
URL for Data Download
Contour Web Service
References
Glossary
Appendix 1. Contour Attributes Data Dictionary
Appendix 2. Abbreviations