ARLA/CLUSTER: Monitorizar a chuva recorrendo a repetidores de telemoveis

[João Gonçalves Costa]

Rain tracked with wireless cellular network

The BBC report on a way to measure rainfall across a country by using mobile phone network signals

Rain absorbs and scatters mobile phone signals in a way that can be analyzed to yield an overall rainfall picture.

The rise and fall of signal strength in each "link" - the path from one mast to another - provides an average measure of how much rain there is between them. As these links criss-cross one another across a region, these simple measures can be mathematically picked apart to yield a map of the rainfall at a given moment.

BBC News story
http://www.bbc.co.uk/news/science-environment-21290976

Read the paper Country-wide rainfall maps from cellular communication networks
http://www.pnas.org/content/early/2013/01/29/1217961110.full.pdf



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