block by HarryStevens 1b7db7831777665ba8457b530397fb8d

Contours

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Use d3-contour to make a contour map.

This is part of a graphic published in Axios with Andrew Freedman’s story, First map of global freshwater trends shows “human fingerprint”. The data is from from M. Rodell et al., 2018, based on data from Gravity Recovery and Climate Experiment (GRACE) satellites.

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