On Friday 11 March 2011, a 9.0-magnitude undersea earthquake off the coast of Japan caused crippling damage to nuclear reactors at the Fukushima I and II Nuclear Power Plant in Ōkuma. Fears of significant radiation leaks led to a massive evacuation for over 45,000 people in the area.
Japan has released some data about radioactivity levels around the Fukushima nuclear plants.
I reinterpreted the original chart into a heat map using Excel. Using large “bubbles” and a gradient colour scheme I emphasized each data point and showed how radiation “cools” as time goes by in this Excel chart.
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Aeternus Consulting offers an excellent workshop Storytelling with Data Visualization using Beautiful Excel Charts. This workshop is aimed at students visualizing thesis data, managers and analysts needing to communicate in a data-driven way and leaders informing their board to drive actions.
Related Link: Making Charts Beautiful with Microsoft Excel