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Category: Big Data and Visualization

Georeferencing: Moving Analog Maps into Modern-Day GIS

Posted by: Meagan Snow

Have you ever wondered how historic maps can be used with today’s modern mapping technologies? One of the ways in which analog maps can be used with GIS (Geographic Information Systems) is through a process called georeferencing. Georeferencing is the process of adding digital spatial reference information to an otherwise non-spatial image. Adding spatial reference …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

GIS Day on November 18th: Mapping the Pandemic

Posted by: Julie Stoner

You are invited to join the Library of Congress in celebrating GIS Day on Wednesday, November 18th from 1-4pm EST, with an afternoon of engaging talks and discussions on the theme of “Mapping the Pandemic Cases, Traces, and Mutations.” This presentation will premiere with closed captions on both the Library’s YouTube site and on the Library …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

Rising to the First: An Interview with Dr. Paulette Hasier

Posted by: John Hessler

This is a special Women’s History Month guest post by Giselle Aviles, the 2019 Archaeological Research Associate in the Geography and Map Division. Giselle interviews Dr. Paulette Hasier, the first woman to serve as Chief of the Geography and Map Division since it was founded late in the nineteenth century. On one of my breaks from …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

[Computing Space VIII] Games Cartographers Play: Alphago, Neural Networks and Tobler’s First Law

Posted by: John Hessler

Today’s post is the eighth in a year-long series called,”Computing Space,” which highlights new mapping technologies and new areas for cartographic innovation, along with stories of the lives and work of many of the mostly unknown cartographers, geographers, mathematicians, computer scientists, designers and architects who both now, and in the past, have had a hand …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

[Computing Space VII] Searching for Magpie and Possum: Contemplating the Algorithmic Nature of Cartographic Space

Posted by: John Hessler

Today’s post is the seventh in a year-long series called,”Computing Space,” which highlights new mapping technologies and new areas for cartographic innovation, along with stories of the lives and work of many of the mostly unknown cartographers, geographers, mathematicians, computer scientists, designers and architects who both now, and in the past, have had a hand …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

Computing Space VI: The Many Languages of Space or How to Read Marble and Dacey

Posted by: John Hessler

Today’s post is the sixth in a year-long series called,”Computing Space,” which highlights new mapping technologies and new areas for cartographic innovation, along with stories of the lives and work of many of the mostly unknown cartographers, geographers, mathematicians, computer scientists, designers and architects who both now, and in the past, have had a hand …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

Computing Space V: Mapping the Web or Pinging your Way to Infinity

Posted by: John Hessler

Today’s post is the fifth in a year-long series called,”Computing Space,” which highlights new mapping technologies and new areas for cartographic innovation, along with stories of the lives and work of many of the mostly unknown cartographers, geographers, mathematicians, computer scientists, designers and architects who both now, and in the past, have had a hand …

Map of North Korea covered by text

North Korea Uncovered: The Crowd-Sourced Mapping of the World’s Most Secret State

Posted by: Ryan Moore

Today’s guest post is by Ryan Moore, a Cartographic Specialist in the Geography and Map Division. Mr. Moore earned a Master’s degree in History from Cleveland State University and a Master’s of Library Science from Kent State University. He is the chief editor and a contributor for the Division’s journal, The Occasional Papers. He teaches …

Brown, red, and yellow tinted map illustration of the continents of Europe, Asia, Africa and Australia, with a circular frame around them

Computing Space II: Taking Waldo Tobler’s Geography 482

Posted by: John Hessler

Today’s post is the second in a continuing series called,”Computing Space,” which will highlight the lives and work of many of the mostly unknown cartographers, geographers, mathematicians, computer scientists, designers and architects who had a hand in the birth of today’s computer cartography. When working with the archives and personal papers of the pioneers of …