IS428 AY2019-20T1 Assign Lim Zi Yuan 1

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VAST 2019 MC2: Citizen Science to the Rescue

Problem and Motivation

Dataset Analysis and Transformation

Interactive Visualizations

Observations


 

Identify areas where radiation over background is detected over time for Static and Mobile sensors

Historically, radiation levels of 25-75cpm are considered as background radiation. Any value higher than 75, we will treat as a result of the earthquake.

Static Sensors

Mobile Sensors

At a glance, it would appear that other than Wilson Forest, every neighborhoods radiation levels are within background levels. Wilson Forest has an average cpm of 945.2 over the course of 5 days.

Mobile-Map.png

However, by taking a closer look at the mobile readings, we are able to see that some sensors detect radiation spikes of over 75cpm and even in the thousand range.

Radiation-By-Hour.png

The following chart shows the congregation of data points that are above 75cpm for mobile sensors. We can see that there is a high volume of data points from the third day onward for some of the neighbourhoods.

Radiation-above-75.png