Podcast
Questions and Answers
Runoff is that portion of ______ that flows over land surfaces toward larger bodies of water. Before runoff can occur, rainfall must satisfy the immediate demands of infiltration, evaporation, interception, surface storage, surface detention and/or channel detention. Some are very minor losses, e.g., interception by a corn crop is only about 0.02 inches. However, in a forested area, interception may not be minor, accounting for up to 25 percent of the rainfall.
Runoff is that portion of ______ that flows over land surfaces toward larger bodies of water. Before runoff can occur, rainfall must satisfy the immediate demands of infiltration, evaporation, interception, surface storage, surface detention and/or channel detention. Some are very minor losses, e.g., interception by a corn crop is only about 0.02 inches. However, in a forested area, interception may not be minor, accounting for up to 25 percent of the rainfall.
precipitation
A graph of runoff rate vs. time is called a runoff hydrograph. The shape of a hydrograph depends on the ______ and upon watershed flow characteristics. However, most hydrographs bear some resemblance to the 'typical shape' shown below:
A graph of runoff rate vs. time is called a runoff hydrograph. The shape of a hydrograph depends on the ______ and upon watershed flow characteristics. However, most hydrographs bear some resemblance to the 'typical shape' shown below:
time distribution of rainfall
E.g., interception by a corn crop is only about 0.02 inches. However, in a forested area, interception may not be minor, accounting for up to 25 percent of the rainfall.
E.g., interception by a corn crop is only about 0.02 inches. However, in a forested area, interception may not be minor, accounting for up to 25 percent of the rainfall.
losses
Indirect Methods )Equations( Direct Methods )______( Current meter Direct Methods Crest stage gauge Staff gauge Talbot’s CN (SCS) Rational Indirect Methods Manning’s Formula Unit Hydrograph Equation Creager’s SCS-CN
Indirect Methods )Equations( Direct Methods )______( Current meter Direct Methods Crest stage gauge Staff gauge Talbot’s CN (SCS) Rational Indirect Methods Manning’s Formula Unit Hydrograph Equation Creager’s SCS-CN
Signup and view all the answers
The SCS-CN method is one of the most popular methods for computing the volume of direct surface runoff for a given rainfall event. On one hand, SCS model is an ______ and it just needs a single parameter-Curve Number which lumps together the hydrological impacts of land use SCS Curve Number Method (Indirect Method)
The SCS-CN method is one of the most popular methods for computing the volume of direct surface runoff for a given rainfall event. On one hand, SCS model is an ______ and it just needs a single parameter-Curve Number which lumps together the hydrological impacts of land use SCS Curve Number Method (Indirect Method)
Signup and view all the answers
Match the runoff loss with its description:
Match the runoff loss with its description:
Signup and view all the answers
Match the runoff estimation method with its type:
Match the runoff estimation method with its type:
Signup and view all the answers
Match the hydrograph component with its description:
Match the hydrograph component with its description:
Signup and view all the answers
Match the runoff measurement tool with its description:
Match the runoff measurement tool with its description:
Signup and view all the answers
Match the runoff control method with its description:
Match the runoff control method with its description:
Signup and view all the answers
