Question

A lake has a surface area of 2 km^{2}. During the month
of June (30-day), the inflow rate (I) to the lake was 1.0
m^{3}/s and outflow rate (Q) from the lake was 0.75
m^{3}/s. During this period, the total amount of
precipitation (P) on the lake surface was 10 cm, the total amount
of evaporation (E) was measured at a nearby pan as 15 cm. (The pan
coefficient is 0.7)

Calculate the storage change (ΔS) for this period in
**cm** and **m ^{3}**.

Answer #1

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