ON THE INFLUENCE OF THE SPATIAL DISTRIBUTION OF RAINFALL ON STORM RUNOFF.

Charles B. Wilson, Juan B Valdes, Ignacio Rodriguez-Iturbe

Research output: Contribution to journalArticle

140 Citations (Scopus)

Abstract

This study is an assessment of the importance of precipitation accuracy on the rainfall-runoff modeling of a small catchment. Two mathematical models were used in the investigation: a deterministic rainfall-runoff model based on the kinematic wave approximation and a nonstationary time-varying multidimensional rainfall generation model. It is implicitly assumed that this rainfall generation model is an appropriate mathematical representation of the natural phenomenon of rainfall. The deterministic rainfall-runoff model is used to represent the 26. 5-mi**2 catchment of the Rio Fajardo in northeastern Puerto Rico. The rainfall model generates synthetic rainfall which serves as the input to this runoff model. The influence of the spatial distribution of the rainfall input on the discharge is analyzed by using 1 rain gage or 20 rain gages to record the synthetic storms. The isohyetal maps and hyetographs of the synthetic storms, together with the storm hydrographs produced by the runoff model, are analyzed, with specific attention given to the volume of storm runoff, time-to-peak runoff, and peak runoff.

Original languageEnglish (US)
Pages (from-to)321-328
Number of pages8
JournalWater Resources Research
Volume15
Issue number2
StatePublished - Apr 1979
Externally publishedYes

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Runoff
Spatial distribution
Rain
runoff
spatial distribution
rain
rainfall
hydrologic models
Rain gages
rain gauges
gauge
Catchments
catchment
rainfall-runoff modeling
Precipitation (meteorology)
hydrograph
Puerto Rico
kinematics
Kinematics
mathematical models

ASJC Scopus subject areas

  • Aquatic Science
  • Environmental Science(all)
  • Environmental Chemistry
  • Water Science and Technology

Cite this

ON THE INFLUENCE OF THE SPATIAL DISTRIBUTION OF RAINFALL ON STORM RUNOFF. / Wilson, Charles B.; Valdes, Juan B; Rodriguez-Iturbe, Ignacio.

In: Water Resources Research, Vol. 15, No. 2, 04.1979, p. 321-328.

Research output: Contribution to journalArticle

Wilson, CB, Valdes, JB & Rodriguez-Iturbe, I 1979, 'ON THE INFLUENCE OF THE SPATIAL DISTRIBUTION OF RAINFALL ON STORM RUNOFF.', Water Resources Research, vol. 15, no. 2, pp. 321-328.
Wilson, Charles B. ; Valdes, Juan B ; Rodriguez-Iturbe, Ignacio. / ON THE INFLUENCE OF THE SPATIAL DISTRIBUTION OF RAINFALL ON STORM RUNOFF. In: Water Resources Research. 1979 ; Vol. 15, No. 2. pp. 321-328.
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