Discussion
Which of the following formula is used to calculate the drainage density of a region or basin ?
Answer: C
Drainage density is total length of streams in km / total area in square km.
\[ D_d = \frac{\sum L}{A} \]
Defined by Horton, it measures how closely a basin is dissected by stream channels. High values indicate impermeable rocks, sparse vegetation and high relief; low values indicate permeable rocks and dense vegetation.
Total number of streams per unit area is stream frequency, basin area divided by the square of basin length is the form factor, and basin area divided by the area of a circle of the same perimeter is the circularity ratio.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development