• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 993
  • 332
  • 35
  • 11
  • 6
  • 6
  • 6
  • 6
  • 6
  • 5
  • 4
  • 4
  • 3
  • 3
  • 3
  • Tagged with
  • 1438
  • 1438
  • 1438
  • 981
  • 802
  • 755
  • 749
  • 384
  • 238
  • 211
  • 198
  • 197
  • 108
  • 77
  • 77
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
621

Character of Earth Fissure Movement in South-Central Arizona

Carpenter, M. C., Boling, J. K, Jr. 12 April 1980 (has links)
From the Proceedings of the 1980 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - April 11-12, 1980, Las Vegas, Nevada
622

Relationships of Soil Texture with Soil water Content and Soil Porosity Characteristics of Arizona Soils

Post, Donald F. 02 May 1981 (has links)
From the Proceedings of the 1981 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - May 1-2, 1981, Tucson, Arizona
623

Hydrologic Regimes of Three Vegetations Types Across the Mogollon Rim

Baker, Malchus B., Jr. 02 May 1981 (has links)
From the Proceedings of the 1981 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - May 1-2, 1981, Tucson, Arizona
624

Candelilla/Petroleum Wax Mixtures for Treating Soils for water Harvesting

Fink, Dwayne H. 02 May 1981 (has links)
From the Proceedings of the 1981 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - May 1-2, 1981, Tucson, Arizona / A vegetable wax (candelilla), alone or in combination with petroleum waxes, was evaluated for treating soils for water harvesting. Samples were alternately weathered in a freeze -thaw cycle chamber, tested for water repellency and structural stability against water erosion, then subjected to more weathering, etc., until sample failure occurred. Soils treated with candelilla/paraffin wax mixtures were much more resistant to laboratory freeze -thaw cycle weathering than those soils treated with either of the waxes alone. Weatherability was further improved, and wax requirement reduced by (1) prior stabilization of the soil with cellulose xanthate made from chemically pulped waste paper; (2) incorporating 28 of a commercial antistripping agent into the wax; and (3) substituting a residual type petroleum wax for the paraffin in the wax mixtures.
625

Stormflow as a Function of Watershed Impervious Area

Pankey, Jan M., Hawkins, Richard H. 02 May 1981 (has links)
From the Proceedings of the 1981 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - May 1-2, 1981, Tucson, Arizona
626

Point-Area-Frequency Conversions for Summer Rainfall in Southeastern Arizona

Osborn, Herbert B., Lane, Leonard J. 02 May 1981 (has links)
From the Proceedings of the 1981 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - May 1-2, 1981, Tucson, Arizona
627

An Analysis of Recession Flows from Different Vegetation Types

Sulaiman, Wan Norazmin bin, Ffolliott, Peter F. 02 May 1981 (has links)
From the Proceedings of the 1981 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - May 1-2, 1981, Tucson, Arizona
628

Estimating Potential Evapotranspiration in Arid Environments

Osmolski, Z., Gay, L. W. 02 May 1981 (has links)
From the Proceedings of the 1981 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - May 1-2, 1981, Tucson, Arizona
629

Use of Radar as a Supplement to Raingage Networks

Osborn, Herbert B., Simanton, J. Roger 12 April 1980 (has links)
From the Proceedings of the 1980 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - April 11-12, 1980, Las Vegas, Nevada
630

Quantification Methods Developed in Conjunction with the Water Use Inventory on BLM Administered Lands in Arizona

Goss, Marvin 12 April 1980 (has links)
From the Proceedings of the 1980 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona - Nevada Academy of Science - April 11-12, 1980, Las Vegas, Nevada / Standard methodologies have recently been developed to quantify water sources occurring on public lands administered by the Bureau of Land Management in Arizona. These water sources typically consist of springs, stockponds, reservoirs and other small bodies of water, and small streamflows of less than 1 c.f.s. (0.025 m³ /sec). Increasing demands for these waters as well as numerous past, on- going, and pending activities to define and adjudicate water rights necessitate that they be consistently and accurately quantified and their uses estimated. Standard methodologies to meet these requirements were essentially nonexistent within the BLM at the time the inventory of these water sources began. Emphasis has been placed on the application of simple and practical procedures based on generally accepted hydrologic principles. These methodologies will be used for quantifying an estimated 4,000 water sources on federally administered lands throughout Arizona. The methods may also be used to inventory the approximately 100,000 water sources located on federally administered lands in the other ten western states.

Page generated in 0.4418 seconds