description Mark Harrower Overview
Mark Harrower is an American cartographer and researcher who co-created the ColorBrewer online tool with Cynthia A. Brewer and others at Penn State University, which provides guidance on selecting effective colour schemes for maps based on data type and accessibility constraints. His published research, conducted while he was affiliated with the GeoVISTA Center, focuses on animated and interactive cartography and the cognitive aspects of map design, including how users process map-based geographic information. He has also worked in industry on digital mapping and location analytics.
insights Ranking position
Mark Harrower ranks #90 of 345 in the Cartographer ranking, behind Strabo, ahead of Albrecht Penck.
help Mark Harrower FAQ
What did Mark Harrower contribute to ColorBrewer?
Harrower worked with cartographer Cynthia Brewer on ColorBrewer, a tool for selecting map color schemes. It distinguishes sequential, diverging, and qualitative palettes for different kinds of geographic data.
What problem does ColorBrewer solve for mapmakers?
It helps cartographers choose colors that remain distinguishable and suit the structure of their data. The tool also identifies palettes designed to work better for color-vision deficiencies, photocopying, or screen display.
What did Mark Harrower study about animated maps?
His research examined how motion, timing, interaction, and visual attention affect the interpretation of animated geographic displays. This work matters because changing maps can overwhelm viewers if transitions are too fast or poorly structured.
Is ColorBrewer only for professional GIS software?
No. Its palettes are used in web maps, data visualizations, and software libraries as well as geographic information systems. ColorBrewer schemes appear in tools and libraries including D3 and R.
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