This page shows the spread of research across topics and countries. We offer two different ways to analyze this research spread: normality measures and article growth.

FAQ Page

Normality: NSF General Topics

Normality: NSF Specific Topics

Normality: Themes

Normality: Water Budget Resources

Normality: Research Methods

Article Growth

Below is a brief breakdown of the different country groups. Please refer to the Country Groups page for more information about how we grouped countries in the study.