Welcome back to Frannie’s deep dive into the water cycle! Today’s focus is surface water. Frannie knows that groundwater refers to water under the ground, so surface water must refer to the bodies of water above the ground, on the surface of the earth. Streams, rivers, lakes, and oceans are all examples of surface water.
Frannie’s experiment with the Awesome Aquifer Kit and her deep dive into the discharge process taught her that surface water is connected to groundwater. Streams and rivers can exchange water droplets that flow with the main current with water droplets that make up the subsurface flow, or flow beneath the streambed.
Frannie has never seen a glacier, but in her research, she learned that she could think of it as a large river of ice that flows downhill under its own weight. When areas have a lot of snowfall in the winter start to warm up, the snow begins to melt and compress itself. If an area receives more snow than it can melt away, the melting snow turns into ice and grows with more cycles of snowfall and partial melting, eventually forming a glacier. Glaciers have an enormous effect on the topography, or layout of the land, in a region as well as its quantity and quality of available water.
Join Frannie next time as she follows the water cycle from rivers, wetlands, and glaciers to the sky. See you then!