Figure 4: Seasonal differences of δ2H and d-excess values in tap water, expressed in circles with different sizes and two colors, green represents value decreasing and red represents increasing, circle size represents the magnitude of seasonal variation.
From: Divergence of stable isotopes in tap water across China
(All of the items were generated with Arcgis 9.3, https://www.arcgis.com/features/index.html).
