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Showing 1 to 20 of 84 for “"Colorado River"”.
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Cyclically-Forced Hyperpycnites of the Ancient Colorado River Proximal Prodelta
… deltaic succession formed when the ancestral Colorado River infiltrated the early Gulf of California. The interpreted prodeltaic unit in this succession (Mud Hills Member of the Deguynos Formation) contains an ~40 m-thick interval of rhythmic bedding with consistently alternating silt- to fine …
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Aspects of ecosystem health in the Colorado River Delta, Mexico
Two aspects of ecosystem health in the Colorado River delta were investigated as part of the present dissertation. The following is a summary of the most important findings: Contaminants of natural origin (e.g. selenium) and anthropogenic activities (e.g. pesticides) represent a potential threat …
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Drought in the Colorado River Basin: Spatiotemporal Analysis using an Edge Detection Filter
A detailed history of drought variability in the Colorado River Basin for the last half millennium was obtained using tree ring-widths of precipitation sensitive trees as a proxy record of past climatic conditions. A one-dimensional edge detection filter was applied to standardized ring-width …
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Effectiveness of Municipal Collaboration for Watershed Management in the Southern Colorado River Basin
… jurisdictions within them in the Southern Colorado River Basin, where water is scarce, from their stormwater Annual Reports, as well as from USGS, NOAA, and Census data, and used pooled ordinary least squares regression to analyze the relationship of municipal cooperation from a period of …
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Water, Agriculture + settlement design in the arid lower Colorado River Basin : 3 new models
… and agrarian/urban settlement processes in the Colorado River Lower Basin focuses on a region in a pivotal situation: Central Arizona and its agricultural irrigation districts. Here, the three models are tested on a hypothetical site of one square mile and simultaneously investigated in an …
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Analysis of Human Influence on Drought Conditions in the Upper Colorado River Basin (Texas)
… change, is rarely studied. Here, the upper Colorado River Basin (Texas) is studied to assess the human influence on drought conditions in a semi-arid basin. An observation-modeling framework is used to simulate naturalized runoff conditions which are compared to observed data in an …
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Groundwater Banking in Imperial Irrigation District: Planning for Future Water Scarcity on the Colorado River
… Mexico rely on surface water imported from the Colorado River. The Imperial Irrigation District (herein IID or District) has rights to use 3.1 million acre-feet (MAF) per year of Colorado River Water (Regional Water Management Group 2013 and Imperial Irrigation District 2009). Of this water …
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A River of Voices: Confluences and Cross-Currents in the Discourse of the Colorado River
This dissertation argues that the Colorado River and its watershed face a crisis of representation as privileged nineteenth-century myths portraying the American West as a frontier, garden, and wilderness have limited an understanding of what and whom the river is for. It examines the contribution …
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Las Vegas in an Era of Limits: Urban Water Politics in the Colorado River Basin
… influence SNWA water policy. Reliance on the Colorado River required adherence to city, county, state, and interstate laws. During a four-year period of political consolidation, the SNWA absorbed local, county, and state level power, a combination that enabled it to negotiate political …
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First-year growth and survival of habitat revegetation trials on the lower Colorado River, Mexico
Sweeping changes across the Colorado River watershed in the 20th century resulted in near-complete collapse of the natural communities in the Colorado River Delta (CRD) in Mexico. A brief return of freshwater flows in the 1980s and 1990s showed the riparian corridor remains resilient to past …
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First-year growth and survival of habitat revegetation trials on the lower Colorado River, Mexico
Sweeping changes across the Colorado River watershed in the 20th century resulted in near-complete collapse of the natural communities in the Colorado River Delta (CRD) in Mexico. A brief return of freshwater flows in the 1980s and 1990s showed the riparian corridor remains resilient to past …
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Evaluating the influence of biocontrol program on the Colorado River biodiversity with multi-source time series imagery
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Changing Patterns of Water, Access, and Public Discourse in the Lower Colorado River Valley of Texas, 1970-2015
… water, access, and public discourse in the lower Colorado River valley of Texas from 1970 to 2015. The waters of the lower Colorado River have sustained urban populations and agricultural operations for over a century. Yet, recent, rapid urban growth and a changing climate have led to the …
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Value creation in water allocation negotiations : lessons from the Apalachicola-Chattahoochee-Flint River and Lower Colorado River Basins
… Water allocation negotiations in the Lower Colorado River and Apalachicola-Flint- River Basins are compared; an agreement was reached in the first case but not the second. My findings support the hypothesis that value creation enables agreement; they also suggest that even when value is …
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Understanding beliefs and preferences of irrigators towards the use and management of agricultural water in the Colorado River Basin
… from a survey of farmers and ranchers who use Colorado River water for agricultural purposes, including: the pressures they are experiencing on their water supplies, options for addressing pressures, their interest and involvement in water transfer arrangements, and their preferences for …
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