Matching Rain Gauge Placement to Precipitation Patterns

  1. AGU Hydrology Section
  1. Patrick J. Brady

Published Online: 19 MAR 2013

DOI: 10.1029/SP004p0111

Precipitation Analysis for Hydrologic Modeling

Precipitation Analysis for Hydrologic Modeling

How to Cite

Brady, P. J. (2013) Matching Rain Gauge Placement to Precipitation Patterns, in Precipitation Analysis for Hydrologic Modeling (ed AGU Hydrology Section), American Geophysical Union, Washington, D. C.. doi: 10.1029/SP004p0111

Author Information

  1. University of Oklahoma, Norman, Oklahoma

Publication History

  1. Published Online: 19 MAR 2013
  2. Published Print: 1 JAN 1975

ISBN Information

Print ISBN: 9781118656037

Online ISBN: 9781118668993

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Keywords:

  • Autocorrelation model;
  • Rain gauges;
  • Raw correlation;
  • Signal and noise structure;
  • Structure function

Summary

Maximum likelihood unbiased, least squares objective analyses of precipitation patterns using Illinois State Water Survey dataare presented. Appropriate space-time autocovariance functions are performed at a specified grid network for various storm systems. Further analyses of these systems are then made using subsets of the original fifty station observation network. An “optimal” station placement pattern is determined for each analysis using non-linear programming techniques, where “optimal” involves maximum reduction of unexplained variance. A statistical comparison is made between the respective analyses for the original station network an the “optimized” station locations, and a “best” station pattern and instrument number is proposed. This analysisapproach could be used to economically place instruments in a watershed in order to estimate rainfall volume to some specifiedconfidence level.