Contour Line QA/QC from DEM Data
I was responsible for reviewing and validating contour lines generated from DEM data in ArcGIS. The focus was on ensuring that the contours accurately represented elevation changes and that linework was clean, consistent, and free of common errors.

My work included:

• Inspecting contour geometry for alignment issues, overlaps, and dangles.
   
• Identifying and correcting topological errors using tools such as Error Inspector and Topology Edit Tool.
   
• Applying snapping techniques to ensure continuity and accuracy of contour line connections.
   

Through this QA/QC process, I helped deliver a clean, accurate, and topologically consistent contour dataset that supported reliable hydrographic and elevation mapping.