This page shows the connectivity of water research between National Science Foundation (NSF) Specific Topics. The citation network below is based on the estimated degree of connectivity which is the probability that one topic (node) is cited by other topics. It is measured by directional citations between articles’ research topics for specific topics. The direction of the edges can be viewed by hovering over the edges that link one topic to another. The edge thickness represents the connectivity proportion, the node size represents research volume, and the node color corresponds to the NSF General Topic label. Please note that adjusting the connectivity using the drop-down menu rescales the edges, so the smaller edges may look larger in the network for legibility purposes.

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