The Design of Rainfall Networks in Time and Space
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A methodology for the design of precipitation networks is formulated. The network problem is discussed in its general conception and then focus is made in 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-vs-space is quantitatively developed and realistic examples are worked out showing the influence of the network design scheme in the variance of the estimated values.
Description
Prepared under the support of U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Weather Service with the cooperation of the Instituto Venezolano de Investigaciones Cientificas, Caracas, Venezuela Contract No. 2-36235
Date issued
1973-11Publisher
Cambridge, Mass. : Ralph M. Parsons Laboratory for Water Resources and Hydrodynamics, Dept. of Civil Engineering, Massachusetts Institute of Technology
Other identifiers
176
Series/Report no.
R (Massachusetts Institute of Technology. Department of Civil Engineering) ; 74-6.Report (Ralph M. Parsons Laboratory for Water Resources and Hydrodynamics) ; no. 176