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  • 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.
1

Spatial interpolation of improved groundwater recharge estimates on coarse textured soils

Wang, Zijian 06 February 2017 (has links)
Groundwater recharge estimation is of fundamental significance to meet the agricultural water requirements, optimize water budget management, and further the sustainable development of water resources, particularly on coarse textured soil due to their rapid drainage behavior. The objectives of the study were to evaluate the feasibility and robustness of groundwater recharge estimation using one-dimensional physically based modelling coupled with weather stations and to interpolate the point estimates of recharge to a regional scale.Since the modelling results from different study areas coincided well with other studies, this method is feasible and robust to produce reliable point estimates of recharge universally. Four methods of recharge interpolation were applied in the second study area and were cross-validated by means of true percent error between the simulated and predicted recharge.The best prediction (7.8% true percent error) was obtained by ordinary kriging. Therefore, the methods of using physically based vadose zone modelling and kriging to estimate both points and regional recharge on coarse textured soil are feasible and extendable. / February 2017
2

Chloride mass balance as a method for determining long-term groundwater recharge rates and geomorphic-surface stability in arid and semi-arid regions, Whisky Flat and Beatty, Nevada

Fouty, Suzanne C. January 1989 (has links) (PDF)
Thesis (M.S. - Geosciences)--University of Arizona. / Includes bibliographical references.
3

Assessment of ground water exchange in two stream channels and associated riparian zones, Jocko Valley, western Montana

Fiaschetti, Aaron A. January 2006 (has links)
Thesis (M.S.)--University of Montana, 2006. / Title from title screen. Description based on contents viewed Mar. 23, 2007. Includes bibliographical references (p. 94-96).
4

Measured temperature profiles to evaluate recharge In the semiarid southwest

Dowman, Charles E. January 2002 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona. / Includes bibliographical references (leaves 102-105).
5

A chemical and isotopic study of ground water from the Tucson Mountains, Arizona

Thorne, Paul David. January 1983 (has links) (PDF)
Thesis (M.S. - Hydrology and water Resources)--University of Arizona, 1983. / Includes bibliographical references (leaves 77-81).
6

Quantification of aquifer recharge distribution using environmental isotopes and regional hydrochemistry

Adar, Eilon. January 1984 (has links) (PDF)
Thesis (Ph. D. - Hydrology and Water Resources)--University of Arizona, 1984. / Includes bibliographical references (leaves 243-250).
7

Unconfined aquifer recharge from water table configuration modeling

Brown, Steven Robin, January 1986 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1986. / Includes bibliographical references (leaves 139-142).
8

Hydrogeology of Butler Valley, Arizona an artificial recharge and ground-water storage prefeasibility study /

Herndon, Roy Lee. January 1985 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1985. / Includes bibliographical references (leaves 103-106).
9

An assessment of recharge from irrigated agricultural land in Harquahala Plains, Arizona

Bowen, Roberta Ann, January 1989 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1989. / Includes bibliographical references (p. 124-125).
10

Recharge processes within the Cacapon Mountain Aquifer, Ridge and Valley Province, West Virginia

Vinciguerra, Cristine M. January 2008 (has links)
Thesis (M.S.)--West Virginia University, 2008. / Title from document title page. Document formatted into pages; contains ix, 68 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 64-67).

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