| A | B |
|---|
| hydrology | the study of water |
| precipitation | includes all forms of rainfall, snow, frost, hail and dew. it is the conversion & transfer of moisture in the atmosphere to the land |
| interception | the precipitation that is collected and stored by vegetation |
| surface runoff | the water that flows over the land's surface |
| infiltration | the water that seeps into the ground |
| evaporation | water from the ground or lake that changes into a gas |
| evapotranspiration[EVT] | in the combined losses of transpiration & evaporation |
| hydrological cycle | the movement of water between air, land & sea. |
| river regime | annual variation in the flow of a river |
| hydrograph | shows us how a river changes over a short period of time [eg.a day/a souple of days] |
| baseflow | normal level of a river, which is fed by GROUND water |
| drainage basin | area of land which is drained by a river & its tributaries |
| watershed | the boundary separating one drainage basin from another |
| drainage density | the length of a river per unit area of catchment area |
| tributary | a stream that contribute water to the main river |
