Question:
An isochrone is a line on the basin map joining the points
An isochrone is a line on the basin map joining the points
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- Isochrone maps are widely used in hydrology for flood forecasting and watershed analysis.
- Other related terms:
- Isohyet: Equal rainfall depth
- Isobar: Equal atmospheric pressure
- Isotherm: Equal temperature
Updated On: Feb 27, 2025
- Of equal snowfall
- Of rain gauge locations
- Of equal rainfall depth in a given location
- Having the equal time of travel of surface runoff to the catchment outlet
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The Correct Option is D
Solution and Explanation
Step 1: Understanding Isochrone
An isochrone is a hydrological concept referring to a line that connects points within a catchment area where surface runoff reaches the outlet at the same time.
Step 2: Explanation of Options
- (A) Incorrect: Isochrones are not related to snowfall.
- (B) Incorrect: Rain gauge locations are not connected by isochrones.
- (C) Incorrect: Equal rainfall depth is represented by isohyet, not isochrone.
- (D) Correct: Isochrones indicate areas where runoff takes the same time to reach the catchment outlet.
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