Effects of Surface-water Diversion on Streamflow, Recharge, Physical Habitat, and Temperature, Nā Wai ʻEhā, Maui, Hawaiʻi PDF Download
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Author: Delwyn S. Oki
Publisher: Geological Survey (USGS)
ISBN:
Category : Nature
Languages : en
Pages : 184
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Book Description
Author: Delwyn S. Oki
Publisher: Geological Survey (USGS)
ISBN:
Category : Nature
Languages : en
Pages : 184
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Book Description
Author: Robert Klinger
Publisher: Frontiers Media SA
ISBN: 2832551734
Category : Science
Languages : en
Pages : 206
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Book Description
Numerous hypotheses have been proposed to explain the dynamics in abundance of individual species, how species interact, how communities assemble, and how interactions between biotic and abiotic processes shape ecosystem stability. Many if not most of these hypotheses find some degree of support, but often only within relatively narrow spatial and temporal ranges. This is because conditions vary over time and from place to place, and so the strength and extent of processes that were the focus of a given a hypothesis become altered by other forces. Ecologists have confronted variability from two perspectives; conceptual and statistical. Conceptually, spatial and temporal variability are now recognized as being scale dependent and hierarchical. Statistically, there are many models that ecologists readily use that account for the hierarchical and scale-dependence of variability present in many datasets. But linking the two perspectives into a meaningful understanding of what variability means in real systems has been much less successful. For example, it is common to see studies where the fixed effects of a generalized linear mixed model are reported, but very often random effects are completely ignored or, at best, given scant attention. The likelihood of this being a significant problem increases greatly in what are rapidly becoming more common studies that utilize datasets spanning long temporal and/or large spatial scales, or when extreme and often unpredictable events (gray and black swans) occur.
Author: Shunlin Liang
Publisher: Elsevier
ISBN: 0128032219
Category : Science
Languages : en
Pages : 3183
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Book Description
Comprehensive Remote Sensing, Nine Volume Set covers all aspects of the topic, with each volume edited by well-known scientists and contributed to by frontier researchers. It is a comprehensive resource that will benefit both students and researchers who want to further their understanding in this discipline. The field of remote sensing has quadrupled in size in the past two decades, and increasingly draws in individuals working in a diverse set of disciplines ranging from geographers, oceanographers, and meteorologists, to physicists and computer scientists. Researchers from a variety of backgrounds are now accessing remote sensing data, creating an urgent need for a one-stop reference work that can comprehensively document the development of remote sensing, from the basic principles, modeling and practical algorithms, to various applications. Fully comprehensive coverage of this rapidly growing discipline, giving readers a detailed overview of all aspects of Remote Sensing principles and applications Contains ‘Layered content’, with each article beginning with the basics and then moving on to more complex concepts Ideal for advanced undergraduates and academic researchers Includes case studies that illustrate the practical application of remote sensing principles, further enhancing understanding
Author: Stephen B. Gingerich
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 84
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Book Description
Author: Doak Carey Cox
Publisher:
ISBN:
Category : Streamflow
Languages : en
Pages : 0
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Book Description
"It is probable but not quite certain that immediately below the proposed point of diversion of 10 million gallons per day from Hanawi Stream, the stream will be entirely dry, except for pools, at some times when the diversion is made in dry weather. It is just possible that the total contributions to the inflow of the plunge pool from which the diversion will be made including the hitherto unsuspected spring in the pool, will supply slightly more than the diverted flow. Even if this is not the case, but the hitherto unsuspected spring exists and has a substantial flow, the periods when there will be no flow immediately below the pool will be very rare and brief. Even if the spring in question does not exist or has insignificant flow, it appears that there will be no flow immediately makai of the pool only about 0.4 percent of the time. Seaward from a point 160 feet makai of the pool there will be flow in the stream at all times, although the dry-weather flow will be only a small fraction of the natural dry-weather flow. Broad limits can be set to the rates of residual dry-weather flow after diversion, but the actual rates within those limits cannot be determined because there have been no determinations of some of the springflow contributions to the stream. Correlations with antecedent rainfall have been made for the Big Spring that makes the major contribution to Hanawi stream flow and for two other springs for which there are flow records, and synthetic flow records for these three springs are presented. Critical uncertainties and methods of analysis when and if they are reduced are discussed. An alternative to the proposed diversion of Hanawi Stream water is identified and factors pertinent to determining the merits of its adoption in place of the proposed diversion are discussed" -- Abstract.
Author: Richard A. Fontaine
Publisher:
ISBN:
Category : Base flow (Hydrology)
Languages : en
Pages : 50
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Book Description
Author: U.S. Department of the Interior
Publisher: CreateSpace
ISBN: 9781499623048
Category : Nature
Languages : en
Pages : 94
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Book Description
Over the past 100 years, natural streamflow in Waipiÿo Valley has been reduced by the transfer of water out of the valley by Upper and Lower Hämäkua Ditches. The physical condition and diversion practices along the two ditch systems have varied widely over the years, and as a result, so have their effects on natural streamflow in Waipiÿo Valley. Recent reno-vation and improvements to Lower Hämäkua Ditch system, along with proposals for its future operation and water-diver-sion strategies, have unknown implications. The purpose of this report is to quantify the availability of streamflow and to determine the effects of current and proposed diversion strate-gies on the low-flow hydrology in Waipiÿo Valley.
Author: Stephen B. Gingerich
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 69
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Book Description
Author: Jane Patch
Publisher:
ISBN:
Category : Water diversion
Languages : en
Pages :
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Book Description
"This paper is a comprehensive study of the proposed Hanawi Stream water diversion project; a project involving the dewatering of a major freshwater stream on Maui located on private land within a conservation district. The intent of the investigators in compiling this report is to make public the widespread views and opinions of persons and agencies on this highly controversial issues, as well as its legal implications" -- Introduction.
Author: Larry A. Roesner
Publisher: International Water Assn
ISBN: 9781843396482
Category : Science
Languages : en
Pages : 197
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Book Description
This study explores the current state of knowledge with respect to the effects of wet weather flows from urban areas on the physical character of aquatic habitat.
