In water-resources engineering, the sizing of reservoirs depends on accurate estimates of water flow in the river that is being impounded. For some rivers, long-term historical records of such flow data are difficult to obtain. In contrast, meteorological data on precipitation are often available for many years past. Therefore, it is often useful to determine a relationship between flow and precipitation. This relationship can then be used to estimate flows for years when only precipitation measurements were made. The given data are available for a river that is to be dammed: Precip., cm/yr 88.9 108.5 104.1 139.7 127 94 116.8 99.1 Flow, m³/s 14.6 16.7 15.3 23.2 19.5 16.1 18.1 16.6 Use the best fit line to predict the annual water flow if the precipitation is 105 cm. (Round the final answer to three decimal places.) The annual water flow for the precipitation 105 cm is cm.
In water-resources engineering, the sizing of reservoirs depends on accurate estimates of water flow in the river that is being impounded. For some rivers, long-term historical records of such flow data are difficult to obtain. In contrast, meteorological data on precipitation are often available for many years past. Therefore, it is often useful to determine a relationship between flow and precipitation. This relationship can then be used to estimate flows for years when only precipitation measurements were made. The given data are available for a river that is to be dammed: Precip., cm/yr 88.9 108.5 104.1 139.7 127 94 116.8 99.1 Flow, m³/s 14.6 16.7 15.3 23.2 19.5 16.1 18.1 16.6 Use the best fit line to predict the annual water flow if the precipitation is 105 cm. (Round the final answer to three decimal places.) The annual water flow for the precipitation 105 cm is cm.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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