Q.60
Given below are two statements
Statement (I) : The slope of mass curve shows the intensities at various time intervals in a storm.
Statement (II) : Hyetograph is derived from the mass curve.
In light of the above statements, choose the most appropriate answer from the options given below.
- Statement (I) is true: A mass curve of rainfall is a cumulative plot of rainfall depth against time ($P$ vs $t$). The instantaneous slope at any point along the curve represents the rate of rainfall depth per unit time ($\frac{dP}{dt}$), which directly defines the rainfall intensity at that interval.
- Statement (II) is true: A hyetograph is a bar graph of rainfall intensity versus time intervals, which is mathematically derived directly from the step-wise slopes of the cumulative mass curve.
- Conclusion: Both Statement (I) and Statement (II) are true. (Correct answer: Option 1)
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