The design of rainfall networks in time and space

Authors:
  • IRIgnacio Rodríguez‐Iturbe
    Ignacio Rodríguez‐Iturbe
  • JMJ. M. Mejía
    J. M. Mejía
  • JMJosé M.
    José M.
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Abstract
A methodology for the design of precipitation networks is formulated. The network problem is discussed in its general conception, and then focus is made on networks to provide background information for the design of more specific gaging systems. The rainfall process is described in terms of its correlation structure in time and space. A general framework is developed to estimate the variance of the sample long‐term mean areal precipitation and mean areal rainfall of a storm event. The variance is expressed as a function of correlation in time, correlation in space, length of operation of the network, and geometry of the gaging array. The trade of time versus space is quantitatively developed, and realistic examples are worked out showing the influence of the network design scheme on the variance of the estimated values.

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