Distribution of Precipitation on Rugged Terrain in Central Arizona
| dc.contributor.author | Osborn, Herbert B. | |
| dc.contributor.author | David, Donald Ross | |
| dc.date.accessioned | 2013-09-04T22:09:11Z | |
| dc.date.available | 2013-09-04T22:09:11Z | |
| dc.date.issued | 1977-04-16 | |
| dc.identifier.issn | 0272-6106 | |
| dc.identifier.uri | http://hdl.handle.net/10150/301021 | |
| dc.description | From the Proceedings of the 1977 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 15-16, 1977, Las Vegas, Nevada | en_US |
| dc.description.abstract | A 3-year study was conducted using tilted, vertical, directional, and recording rain gages (52 in all) to evaluate rainfall distribution on the Three Bar experimental watersheds in central Arizona. The tilted gages did not improve the determination of mean areal precipitation on the small watersheds because about as many tilted gages caught less rain as caught more. Although rugged and steep, the local topography exerted only minor effects on rainfall distribution compared to the major influence exerted by the Mazatzal Mountains to the windward (southwest). Forty-nine percent of wind travel was from the southwest quarter and wind averaged 4.4 mph when rain was actually falling. Wind exceeded 10 mph 9 percent of the time and 15 mph 0.4 percent of the time. Mean annual precipitation on the 600-acre study area ranged from 30 inches at 5,000 feet elevation to 22 inches at 3,400 feet (5 inches per 1,000 feet). Results of this study indicate that precipitation averages about 36 inches at 6,200 feet elevation along the Mazatzal crest near Four Peaks, about 6 inches more than published data show for the site. | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Arizona-Nevada Academy of Science | en_US |
| dc.rights | Copyright ©, where appropriate, is held by the author. | en_US |
| dc.subject | Hydrology -- Arizona. | en_US |
| dc.subject | Water resources development -- Arizona. | en_US |
| dc.subject | Hydrology -- Southwestern states. | en_US |
| dc.subject | Water resources development -- Southwestern states. | en_US |
| dc.title | Distribution of Precipitation on Rugged Terrain in Central Arizona | en_US |
| dc.type | text | en_US |
| dc.type | Proceedings | en_US |
| dc.contributor.department | USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Forestry Sciences Laboratory, Tempe, Arizona | en_US |
| dc.identifier.journal | Hydrology and Water Resources in Arizona and the Southwest | en_US |
| dc.description.collectioninformation | This article is part of the Hydrology and Water Resources in Arizona and the Southwest collections. Digital access to this material is made possible by the Arizona-Nevada Academy of Science and the University of Arizona Libraries. For more information about items in this collection, contact anashydrology@gmail.com. | en_US |
| refterms.dateFOA | 2018-06-12T10:29:00Z | |
| html.description.abstract | A 3-year study was conducted using tilted, vertical, directional, and recording rain gages (52 in all) to evaluate rainfall distribution on the Three Bar experimental watersheds in central Arizona. The tilted gages did not improve the determination of mean areal precipitation on the small watersheds because about as many tilted gages caught less rain as caught more. Although rugged and steep, the local topography exerted only minor effects on rainfall distribution compared to the major influence exerted by the Mazatzal Mountains to the windward (southwest). Forty-nine percent of wind travel was from the southwest quarter and wind averaged 4.4 mph when rain was actually falling. Wind exceeded 10 mph 9 percent of the time and 15 mph 0.4 percent of the time. Mean annual precipitation on the 600-acre study area ranged from 30 inches at 5,000 feet elevation to 22 inches at 3,400 feet (5 inches per 1,000 feet). Results of this study indicate that precipitation averages about 36 inches at 6,200 feet elevation along the Mazatzal crest near Four Peaks, about 6 inches more than published data show for the site. |
