Ringkasan Siklus Hidrologi

Conceptual image of components of the hydrologic cycle. Shows a mountainous basin with drainage into an ocean. Parts labeled include: evaporation, transpiration, condensation, precipitation, ice and snow melt, surface runoff into such freshwater storage areas as lakes and streams. Infiltration into the ground to aquifers and springs are also included. Finally, remaining streamflow and groundwater drain into the ocean.

Hidrologi adalah ilmu yang mempelajari tentang air di bumi. Hidrologi meneliti sifat-sifat air, pembentukan air, distribusi air, dan pergerakannya di planet Bumi. Pendekatan dengan persamaan neraca air memperhitungkan berapa volume aliran yang masuk (inflow), aliran yang keluar (outflow), dan perubahan simpanan air (storage). Metode ini memungkinkan kita untuk melacak jumlah dan pergerakan air dalam suatu sistem contohnya Daerah Aliran Sungai (DAS).