Analytical Versus Numerical Estimates of Water-level Declines Caused by Pumping, and a Case Study of the Iao Aquifer, Maui, Hawaii

Analytical Versus Numerical Estimates of Water-level Declines Caused by Pumping, and a Case Study of the Iao Aquifer, Maui, Hawaii PDF

Author: Delwyn S. Oki

Publisher:

Published: 2001

Total Pages: 38

ISBN-13:

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Report on adopting the Robust Analytical Model (RAM) for establishing sustainable-yield values for the Iao Aquifer which lies on the northeastern flank of the West Maui Volcano on the Island of Maui. The report describes comparisons between model-calculated water levels from RAM and those from numerical ground-water flows models based on the case study of the Iao Aquifer.

Groundwater Intensive Use

Groundwater Intensive Use PDF

Author: Andrés Sahuquillo

Publisher: CRC Press

Published: 2005-06-30

Total Pages: 422

ISBN-13: 9780415364447

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Intensive use of groundwater has resolved the demand for drinking water and, through irrigation, has contributed to the eradication of malnourishment in many developing countries. The spectacular worldwide increase in groundwater use in the last decades, especially in arid and semi-arid regions, has been a silent revolution carried out by millions of small farmers. In some instances, groundwater abstraction has caused problems of quality degradation, excessive drawdown of groundwater levels, land subsidence, reduction of spring and baseflows or degradation of groundwater-dependent ecosystems. Most of these problems could be anticipated, mitigated, or even avoided with more active water agencies, adequate regulations and users’ participation in management. Groundwater Intensive Use contains a selection of papers presented at a symposium held in December 2002 in Valencia, Spain. It constitutes a step forward in creating a greater worldwide awareness of the relevance of groundwater in water resources policy. The book presents new ideas and accounts of recent advances in technical, economic, legal, administrative and political issues. It addresses groundwater development to ecosystems sustainability, through different or complementary approaches. A wide series of case studies from North and South America, Europe, South Asia and North and Sub-Saharan Africa cover the various issues. These case studies represent countries with a wide diversity of social circumstances, from areas in which development is emerging, to communities with a long history of successful groundwater use.