Skip to Main Content
Modeling precipitation-runoff relationships to determine water yield from a ponderosa pine forest watershedAuthor(s): Assefa S. Desta
Source: Flagstaff, AZ: Northern Arizona University School of Forestry. 178 p. Thesis.
Publication Series: Miscellaneous Publication
PDF: View PDF (4 MB)
DescriptionA stochastic precipitation-runoff modeling is used to estimate a cold and warm-seasons water yield from a ponderosa pine forested watershed in the north-central Arizona. The model consists of two parts namely, simulation of the temporal and spatial distribution of precipitation using a stochastic, event-based approach and estimation of water yield from the watershed using deterministic and spatially varied water balance technique. In the first part, a selected group of theoretical probability distribution functions are used to describe the probability distribution of the various precipitation characteristics, such as storm depth, storm duration, and interarrival time between events. Then, a synthetic data of each precipitation characteristic are generated using the best distribution function that fit the observed data. The other precipitation characteristics evaluated in this part is the spatial distribution of precipitation. The distribution of storm depth and duration across the watershed with respect to the landscape characteristics such as latitude, longitude, elevation and aspect is studied. In addition, the form of precipitation, snow or snow during the coldseason is analyzed by simulating temperature. Overall the models for two seasons work well except that the cold-season model overestimate precipitation events of small depth and duration while, the warm-season model overestimate the total seasonal amount.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationDesta, Assefa S. 2006. Modeling precipitation-runoff relationships to determine water yield from a ponderosa pine forest watershed. Flagstaff, AZ: Northern Arizona University School of Forestry. 178 p. Thesis.
Keywordsmodeling, precipitation runoff, water yield, Arizona
- Exploring climate niches of ponderosa pine (Pinus ponderosa Douglas ex Lawson) haplotypes in the western United States: implications for evolutionary history and conservation
- Geographic variation in ponderosa pine leader growth
- Ponderosa pine forest reconstruction: Comparisons with historical data
XML: View XML