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Posted by: Meagan Snow
This blog posts provides an introduction to some early maps produced from images captured by ERTS-1 (later known as Landsat I), the world's first earth-observing satellite.
Posted in: 20th century cartography, Big Data and Visualization, Geographic Information Science
Posted by: Meagan Snow
How have national and global populations been mapped over time? This blog post uses collection items from the Geography & Map Division at the Library of Congress to explore changing methods for mapping populations, from census-based thematic maps to modern population raster datasets.
Posted in: Big Data and Visualization, Geographic Information Science
Posted by: Tim St. Onge
Our new interactive map showcases the Climatological Database for the World's Oceans 1750-1850, an exciting digital acquisition of the Library of Congress.
Posted in: Big Data and Visualization, Exploration, Geography and Map Division
Posted by: Sonia Kahn
Did you know that worldwide, roughly 55 earthquakes are recorded per day? Of course, the vast majority of these seismic events are minor, making it all the more impressive that we are able to detect them. The technology used to gather data on earthquakes and seismic movements has vastly improved over time, and with it …
Posted in: 19th century cartography, 20th century cartography, 21st century cartography, Big Data and Visualization