Daily Archives: September 3, 2010

Mapping Temperature Anomalies with R: UPDATE 12/17/13

In this post I show how to map NASA GISS’s  2×2 degree temperature anomaly data using R mapping tools. Rather than rely on a single value to reflect monthly global temperature anomaly, this map shows the anomalies  in each of the 16,200 cells in a  2 degree lon/lat grid. This lets us see the details that make up the global mean, we can see which areas are warmer and which are cooler.  I provide a link to my RClimate script and data file so that interested R users can make their own maps.

Here’s my R Climate map of NASA’s July 2010 2×2 degree data set. (Click map to check out the enlargement )

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