Proceedings of the Hydrology section of the Annual Meeting of the Arizona-Nevada Academy of Science. Full text manuscripts of work presented. Research related to water resources, water management, and hydrologic studies primarily focused regionally on southwestern US.

Volume 42. Proceedings of the 2012 Meetings of the Hydrology Section - Arizona-Nevada Academy of Science.

April 14, 2012, Glendale Community College, Glendale, Arizona


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Recent Submissions

  • Experiment Forest Watershed Studies Contribution to the Effect of Disturbances on Water Quality

    Neary, Daniel G.; U.S. Forest Service, Rocky Mountain Research Station, Flagstaff, AZ 86001 (Arizona-Nevada Academy of Science, 2012-04-14)
  • Water in Wyoming - Availability, Regulatory Policies, and Climate Change in the Cowboy State

    Wilson, Amber L.; Northern Arizona University, Flagstaff (Arizona-Nevada Academy of Science, 2012-04-14)
    Climate change is real and may have devastating effects to a fragile world that is reaching beyond its capacity. This is especially true in the semi-arid areas of the western United States and particularly in Wyoming. The problem of climate change is serious and its solutions depend on the willingness of people to act on it with zeal in a coordinated and holistic manner. In particular, Wyoming is faced with possible water contamination from hydraulic fracturing operations. In the presence of continuing drought from climate change, such a problem in combination with the sheer amount of water required for fracturing practices can lead to serious water shortage. The objective of this study is to examine the current environmental policy in Wyoming and evaluate its ability to help adapt to climate change. This is very important and a clear understanding of existing environmental policies is necessary to develop and implement appropriate plans and procedures to protect the quality of the increasingly shrinking and valuable water supply in an effective, holistic and cost-effective manner. In this study, I expect to provide a comprehensive overview and understanding of the quantity, quality, allocation and use of the area’s groundwater and surface water under recurring climate change. Such information may lead to actions and steps that can be taken by Wyoming’s water stakeholders.
  • Rainfall-Runoff Model for Black Creek Watershed, Navajo Nation

    Tecle, Aregai; Heinrich, Paul; Leeper, John; Tallsalt-Robertson, Jolene; Northern Arizona University, Flagstaff, Arizona 86011; Navajo Nation Department of Water Resources, Fort Defiance, Arizona (Arizona-Nevada Academy of Science, 2012-04-14)
    This paper develops a rainfall-runoff model for estimating surface and peak flow rates from precipitation storm events on the Black Creek watershed in the Navajo Nation. The Black Creek watershed lies in the southern part of the Navajo Nation between the Defiance Plateau on the west and the Chuska Mountains on the east. The area is in the semiarid part of the Colorado Plateau on which there is about 10 inches of precipitation a year. We have two main purposes for embarking on the study. One is to determine the amount of runoff and peak flow rate generated from rainfall storm events falling on the 655 square mile watershed and the second is to provide the Navajo Nation with a method for estimating water yield and peak flow in the absence of adequate data. Two models, Watershed Modeling System (WMS) and the Hydrologic Engineering Center (HEC) Hydrological Modeling System (HMS) that have Geographic Information System (GIS) capabilities are used to generate stream hydrographs. The latter show peak flow rates and total amounts of stream flows produced from rainfall storm events. Two 24-hour rainfall amounts, 1.1 inches and 0.6 inches, are imputed into the WMS and HEC HMS modeling system and evaluated to produce 1770 cfs and 3.9 cfs of peak flows and 1106.5 acre feet and 2.7 acre feet of total flow volumes, respectively. Even though the first one seems to be a little high compared to historical peak flows from the watershed, the outcomes seem to be quite appropriate for the study area when compared with gauging site flows at other times as well as with flows from well-instrumented nearby watersheds.
  • Water Supply and Groundwater Issues in the Upper Verde Valley of Arizona

    Patrick, Brian; Tecle, Aregai; Department of Geography and Public Planning, Northern Arizona University, Flagstaff, AZ; School of Forestry, Northern Arizona University, Flagstaff, AZ 86011 (Arizona-Nevada Academy of Science, 2012-04-14)
  • Monitoring the Effects of Air-Quality on Forests: An Overview of the Sierra Ancha Experimental Forest ICP-Level II Site

    Koestner, Peter E.; Koestner, Karen A.; Neary, Daniel G.; US Forest Service, Phoenix, Arizona; US Forest Service, Flagstaff, Arizona (Arizona-Nevada Academy of Science, 2012-04-14)
    The Sierra Ancha International Cooperative Program on Assessment and Monitoring of Air Pollution Effects on Forests study site or (SAEF-ICP II) is part of an international network of cooperative forest monitoring sites spread throughout Europe and the United States. The United Nations Economic Commission for Europe established the ICP II network in 1985 to monitor long-term effects of transboundary air pollution. The Sierra Ancha Experimental Forest was chosen to be a part the U.S.’s network because it is the southernmost Experimental Forest in the contiguous U.S., and because it is downwind from a major metropolitan area, Phoenix, Arizona. The site monitoring includes forest overstory growth, crown condition, foliar chemistry, understory vegetation, litterfall, soil chemistry meteorology, ozone, and deposition. This paper provides an overview of the ICP forest network, and discusses the research currently underway at the Sierra Ancha ICP II site. An overview of the challenges encountered while implementing ICP Level II monitoring will also be included.
  • The Seven Springs Experimental Grassland Watersheds

    Gottfried, Gerald J.; Ffolliott, Peter F.; Rocky Mountain Research Station, U.S. Forest Service, Phoenix, Arizona; School of Natural Resources and the Environment, University of Arizona, Tucson, Arizona (Arizona-Nevada Academy of Science, 2012-04-14)
  • Cumulative Effects of Watershed Management in Arizona and the Southwest

    Ffolliott, Peter F.; University of Arizona, Tucson, Arizona (Arizona-Nevada Academy of Science, 2012-04-14)
  • An Overview of the Sierra Ancha Experimental Forest's Role in the Free-Air CO₂ Enrichment Large Wood Decomposition Experiment

    Koestner, Peter E.; Koestner, Karen; Neary, Daniel G.; Trettin, Carl C.; University of Arizona, Tucson, Arizona (Arizona-Nevada Academy of Science, 2012-04-14)
  • An Attempt at Water Yield Modeling in the Centennial Forest in Northern Arizona

    Dai, Ian; Tecle, Aregai; University of Arizona, Tucson, Arizona (Arizona-Nevada Academy of Science, 2012-04-14)