Understanding the role of underground connections in hydrology – Phys.org

Topographically sketched catchment areas are a spatial unit based on the shapes of the earth’s surface. They show how human activities and climate change influence the available quantities of water. Knowledge of these units is fundamental to sustainable water management. However, due to underground connections, some catchment areas accumulate water from areas beyond their topographic boundaries, while others are effectively much smaller than their surface topography would suggest. Currently, mos…

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