• Correcting Tidal Responses in Observed Water Well Levels During Coastal Aquifer Tests

      Popkin, Barney P.; Dames & Moore, Houston, Texas 77092; Environmental Research Laboratory, University of Arizona, Tucson (Arizona-Nevada Academy of Science, 1981-05-02)
      A modified tidal efficiency algorithm, ESTA, was developed to correct observed water well levels in tidally responsive coastal areas to get best estimates of aquifer properties and well production characteristics. The algorithm was developed during groundwater studies in Puerto Peñasco, northeastern Gulf of California, Sonora, Mexico. ESTA predicts standing water well levels in response to tides. ESTA requires initial sea and well calibration data, from which sea-well relationships are calculated. It needs tidal data for the time period when projected standing water well levels are desired. The method uses a single cosine or sine function for rising or falling tides, respectively. ESTA tended to overpredict water levels, especially on rising tides, on the average of about 0.05 ft, as shown in analyses at five coastal well sites completed in low to moderately permeable sand and coquina. ESTA can be improved by application of error analysis, but this will not be necessary in most cases, as errors are generally very small for most aquifers and tidal ranges. When ESTA was applied to an aquifer test in highly permeable coral near Kahuku, northehore Oahu, Hawaii, rising -tide water well levels were overpredicted and falling -tide water well levels were underpredicted by 0.10 and 0.33 ft, respectively. Error analysis reduced these errors to 0.06 and 0.16 ft.
    • The Alternatives and Impacts Associated with a Future Water Source Transition for Tucson Water

      McLean, Thomas M.; Davis, Stephen E.; Tucson Water, Tucson, Arizona 85726 (Arizona-Nevada Academy of Science, 1981-05-02)
      Anticipating a surge in the future growth of the Tucson urban area accompanied by a need for the preservation of the local groundwater resource, Tucson Water is planning for a major transition in its source of supply during the next fifty years. The completion of the Central Arizona Project to the Tucson area represents the primary ingredient to the formulation of a future water supply plan for the community. Tucson, which presently relies totally upon groundwater for its potable water supply, is diligently preparing to accept its first surface water source. The task of planning for this event is extremely complex and is further hampered by the fact that many critical factors relating to the Tucson Division of the Central Arizona Project are yet undefined. Tucson Water engineers utilize contemporary computerized hydraulic models as tools to define an array of technical solutions to the problem of accomplishing a major conversion from a multi-point system source to a predominantly single source of supply. Elements such as construction, operation, and maintenance costs associated with water treatment and delivery systems are addressed.
    • Ranking Alternative Plans for the Santa Cruz River Basin by Q-Analysis

      Pfaff, Ronald T.; Duckstein, Lucien; University of Arizona (Arizona-Nevada Academy of Science, 1981-05-02)
      This paper introduces an intuitive, multicriterion decision making aid utilizing Q-analysis, a technique based in algebraic topology and set theory. This aid ranks twenty-five alternative plans for the water resource management and flood control of the Santa Cruz River Basin. These twenty -five plans have been described in terms of thirteen weighted criteria. Q-analysis is used to investigate a series of binary matrices formed over a range of threshold levels (TLs), indicating different levels at which the plans satisfy the criteria. A computer package performs both Q-analysis and slicing over the TL range. A short discussion concerning additional information that can be drawn from the multicriterion Q-analysis has also been included.
    • Hydrology and Water Resources in Arizona and the Southwest, Volume 11 (1981)

      Unknown author (Arizona-Nevada Academy of Science, 1981-05-02)
    • Hydrologic Regimes of Three Vegetations Types Across the Mogollon Rim

      Baker, Malchus B., Jr.; Rocky Mountain Forest and Range Experiment Station. Flagstaff, Arizona 85721 (Arizona-Nevada Academy of Science, 1981-05-02)
    • Evaluation of the Use of Soil Conservation Service Snow Course Data in Describing Local Snow Conditions in Arizona Forests

      Gottfried, Gerald J.; Ffolliott, Peter F.; USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Forestry Sciences Laboratory, Arizona State University, Tempe, Arizona 85281; School of Renewable Natural Resources, University of Arizona, Tucson, Arizona 85721 (Arizona-Nevada Academy of Science, 1981-05-02)
    • Organic Pollutants in Ground-Recharged Water

      Mikita, Michael A.; Thorn, Kevin; Hobson, James; Lo, Suzanne; Steelink, Cornelius; Department of Chemistry, University of Arizona, Tucson, Arizona 85721 (Arizona-Nevada Academy of Science, 1981-05-02)
    • Federal Reserved Water Rights of the Bureau of Land Management in Colorado

      Herbert, Richard A.; Martinez, Anthony L.; Bureau of Land Management, Denver, Colorado 80202 (Arizona-Nevada Academy of Science, 1981-05-02)
    • Sediment Sources of Midwestern Surface Waters

      Wilkin, Donovan C.; Hebel, Susan J.; School of Renewable Natural Resources, University of Arizona; Department of Landscape Architecture, University of Illinois (Arizona-Nevada Academy of Science, 1981-05-02)
    • Point-Area-Frequency Conversions for Summer Rainfall in Southeastern Arizona

      Osborn, Herbert B.; Lane, Leonard J. (Arizona-Nevada Academy of Science, 1981-05-02)
    • Arizona Solar Powered Pumping Project: Operating Experiences

      Larson, Dennis L.; Soils, Water and Engineering Department, University of Arizona, Tucson, Arizona 85721 (Arizona-Nevada Academy of Science, 1981-05-02)
    • Some Effects of Controlled Burning on Surface Water Quality

      Sims, Bruce D.; Lehman, Gordon S.; Ffolliott, Peter F.; School of Renewable Natural Resources, University of Arizona (Arizona-Nevada Academy of Science, 1981-05-02)
    • Hydraulic Effects of Vegetation Changes Along the Santa Cruz River Channel Near Tumacacori, Arizona

      Applegate, Lee H.; U.S. Geological Survey, Tucson, Arizona 85701 (Arizona-Nevada Academy of Science, 1981-05-02)
    • Estimating Potential Evapotranspiration in Arid Environments

      Osmolski, Z.; Gay, L. W.; School of Renewable Natural Resources, University of Arizona, Tucson, Arizona 85721 (Arizona-Nevada Academy of Science, 1981-05-02)
    • Microtrac: A Rapid Particle-Size Analyzer of Sediments and Soils

      Haverland, R. L.; Cooper, L. R.; Soils, Water and Engineering Department, University of Arizona, Tucson, Arizona; Southwest Watershed Research Center, USDA-SEA-AR, Tucson, AZ (Arizona-Nevada Academy of Science, 1981-05-02)
    • Some Biohydrologic Impacts of Land Imprinting

      Dixon, Robert M.; Simanton, J. Roger; USDA, SEA-AR, Tucson, Arizona 85719 (Arizona-Nevada Academy of Science, 1981-05-02)
    • Use of the Universal Soil Loss Equation in the Tropics

      Rasmussen, Todd C.; Tracy, Fred C.; Department of Hydrology and School of Renewable Natural Resources, University of Arizona 85721 (Arizona-Nevada Academy of Science, 1981-05-02)
    • An Analysis of Recession Flows from Different Vegetation Types

      Sulaiman, Wan Norazmin bin; Ffolliott, Peter F.; School of Renewable Natural Resources, University of Arizona (Arizona-Nevada Academy of Science, 1981-05-02)
    • Relationships of Soil Texture with Soil water Content and Soil Porosity Characteristics of Arizona Soils

      Post, Donald F.; Department of Soils, Water and Engineering, University of Arizona, Tucson, Arizona (Arizona-Nevada Academy of Science, 1981-05-02)
    • Geostatistical Analysis and Inverse Modeling of the Avra Valley Aquifer

      Clifton, Peter M.; Neuman, Shlomo P.; Arizona Department of Water Resources, Phoenix, Arizona 85004 (Arizona-Nevada Academy of Science, 1981-05-02)