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Aerial photos help census officials pinpoint faraway people
The agency is using aerial images of rural communities and hard-to-reach areas to verify addresses and determine where to send workers to ensure everyone is counted, Census Bureau Director Steven Dillingham said. Satellites and planes take photos, and bureau employees compare the housing captured in the images to digital maps from the last census, in 2010. It takes a fraction of the time needed by workers in the field. The agency has used geographic technology since 1990 but has never had access to such accurate tools from the air, said Deirdre Dalpiaz Bishop, head of the bureau’s geography division. That technology ‐ known as geographic information system, or GIS ‐ uses computers to analyze neighborhoods, land formations, rivers and other data captured by satellites or traditional mapping. The new technology to improve the census comes amid concerns that tribal areas and communities of color may be undercounted in the every-10-year tally that determines the amount of federal money states receive and whether they gain or lose U.S. congressional seats. Posted by: Besoeker 2019-06-24 |
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