TECHNICAL NOTES
Jun 13, 2003
Simple, Practical Method for Determining Station Weights Using Thiessen Polygons and Isohyetal Maps
Publication: Journal of Hydrologic Engineering
Volume 8, Issue 4
Abstract
A simple, practical method for computing station weights, which are commonly used in operational (i.e., real-time) hydrologic modeling, is presented. The weights are derived using Thiessen polygons and widely available isohyetal information. The method is shown to eliminate long-term bias associated with the difference between the spatial distribution of precipitation implied by Thiessen polygons and the more accurate spatial distribution depicted by an isohyetal map.
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References
Daly, C., Neilson, R. P., and Phillips, D. L.(1994). “A statistical-topographic model for mapping climatological precipitation over mountainous terrain.” J. Appl. Meteorol., 33, 140–158.
National Weather Service (NWS). (2002). “NWSRFS user’s manual documentation, release number 64.” 〈http://www.nws.noaa.gov/oh/hrl/nwsrfs/users_manual/htm/xrfsdochtm.htm〉 (June).
Information & Authors
Information
Published In
Journal of Hydrologic Engineering
Volume 8 • Issue 4 • July 2003
Pages: 219 - 221
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Mar 5, 2002
Accepted: Jan 21, 2003
Published online: Jun 13, 2003
Published in print: Jul 2003
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Authors
Affiliations
Fritz R. Fiedler
Department of Civil Engineering, Univ. of Idaho, Moscow, ID 83844-1022.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.