Aligning Subnational Boundaries to the Large Scale International Boundaries Dataset

Authors: William Bredemeyer*, U.S. Bureau of the Census
Topics: Geographic Information Science and Systems, Population Geography
Keywords: International boundaries, regional maps, subnational mapping, boundary harmonization
Session Type: Paper
Day: 4/7/2020
Start / End Time: 8:40 AM / 9:55 AM
Room: Capitol Ballroom 3, Hyatt Regency, Fourth Floor
Presentation File: No File Uploaded


Subnational geospatial datasets often do not have harmonized international boundaries, resulting in gaps or overlaps when displaying data from multiple countries in a regional map. The U.S. Department of State’s Large Scale International Boundaries (LSIB) dataset can be used to align the boundaries so that regional maps without these issues can be created. This presentation summarizes the rationale for harmonization of international boundaries and the process involved in their alignment using GIS software, starting with the necessary inputs and concluding with the aligned boundaries. The presentation includes a few examples of U.S. Census Bureau population maps for areas outside the United States that illustrate the value of the harmonized boundaries.

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