• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 128
  • 25
  • 6
  • 5
  • 4
  • 4
  • 4
  • 4
  • 4
  • 4
  • 1
  • 1
  • 1
  • Tagged with
  • 211
  • 211
  • 70
  • 56
  • 41
  • 39
  • 37
  • 36
  • 35
  • 31
  • 23
  • 23
  • 23
  • 23
  • 23
  • 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.
41

Monitoring, analyzing and modeling hydrological processes over a headwater catchment in Hong Kong /

Li, Yanqiu, January 2009 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2010. / Includes bibliographical references (p. 101-118). Also available online.
42

Monitoring, analyzing and modeling hydrological processes over a headwater catchment in Hong Kong

Li, Yanqiu, January 2009 (has links)
Thesis (M. Phil.)--University of Hong Kong, 2010. / Includes bibliographical references (p. 101-118). Also available in print.
43

Use of streamflow indices in hydrologic modeling

Shamir, Eylon. January 2003 (has links)
A perennial streamflow hydrograph, when measured at the outlet of a basin, continuously and without interruption, can be considered as an integral measure of hydrologic responses. Some of the theoretical and practical aspects of treating streamflow hydrographs as integral indicators of basin properties are addressed in this dissertation. This dissertation is divided into two parts. In the first part, a framework to identify and evaluate whether a streamflow variable is consistent and distinguishable in a given time scale and therefore can be considered as a streamflow index, is developed. The suggested framework is evaluated using as an example two streamflow variables that describe some aspects of the hydrograph shape. In the second part of the dissertation, the utilization of these streamflow indices in hydrologic model parameter estimation is demonstrated. It is assumed that streamflow indices that are evaluated on long streamflow records include large variability of climatic scenarios. Therefore, regardless of climate variability, the consistency and distinguishability are maintained the indices are more related to physical properties of a basin. Consequently, the problem of estimating model parameters that are related to basin properties can be approached by a comparison of indices between the observed and simulated streamflow. Three case studies are presented: the first demonstrates that using the streamflow index which describes the shape of the hydrograph in the parameter estimation processes improves consistency of prediction skill of the 5-parameter HYMOD model in the Leaf River, Mississippi. The second case study explores an important property of the shape descriptors as being relatively insensitive to errors in the data. Such property can be potentially used to identify key sources of uncertainty and to select model parameters that are less affected by data errors. In the final case study, the shape descriptors were used to derive the parameters of the gamma function as a model for the basin's Instantaneous Unit Hydrograph (IUH).
44

Hydrological modeling to support simulation of an ozone exceedance episode over Texas

Stewart, Adam Gillis 12 1900 (has links)
No description available.
45

Development of a graphics interface for the Savannah River control program "Savres"

Barr, Thomas W. 12 1900 (has links)
No description available.
46

Hydrologic modeling to determine the effect of small earthen reservoirs on ephemeral streamflow

Lovely, Collis Joe, January 1976 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona. / Includes bibliographical references.
47

Analysis of constant head borehole infiltration tests in the vadose zone

Stephens, Daniel Bruce. January 1979 (has links) (PDF)
Thesis (Ph. D. - Hydrology and Water Resources)--University of Arizona. / Includes bibliographical references.
48

A ground water model of the Williams Lake watershed Hubbard County, Minnesota

Karls, Robert Michael. January 1982 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1982. / Includes bibliographical references (leaves 76-79).
49

An analysis of proposed pumpage effects on the upper aquifer of the Mesilla Valley, New Mexico

Giacinto, Joseph Francis, January 1988 (has links) (PDF)
Thesis (M.S. - Hydrology and Water Resources)--University of Arizona, 1988. / Includes bibliographical references.
50

A review of hydrologic models for flash flood warning system in southwest Saudi Arabia.

Al-Haratani, Eisa R. January 1988 (has links) (PDF)
Thesis (M. S. - Renewable Natural Resources)--University of Arizona, 1988. / Includes bibliographical references (leaves 58-60).

Page generated in 0.079 seconds