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The NRP had its beginnings in the late 1950's. Since that time, the program has grown to encompass a broad spectrum of scientific investigations. The sciences of hydrology, mathematics, chemistry, physics, ecology, biology, geology, and engineering are used to gain a fundamental understanding of the processes that affect the availability, movement, and quality of the Nation's water resources. Results of NRP's long-term research investigations often lead to the development of new concepts, techniques, and approaches that are applicable not only to the solution of current water problems, but also to future issues that may affect the Nation's water resources. Basic tools of hydrology that have been developed by the...
Categories: Project; Types: ScienceBase Project; Tags: Acid Mine Drainage, Aquatic Habitat, Arid Land Hydrology, Carbon Cycle, Contaminant Reactions and Transport, All tags...
Understanding the effects of climatic variability is important to development of water resources, mitigation of flood hazards, and interpretation of geomorphic surfaces. Climatic variability, which is characterized by temporal changes in variability of seasonal climate that spans decades or centuries, may be more important to water-resources evaluations than changes in mean climatic conditions. Changes in variability of climate has a large effect on the probability of occurrence of extreme events, such as floods or droughts. Understanding of climatic variability and its effect on the landscape is of paramount importance for estimation of flood frequency, sediment transport rates, and long-term watershed and channel...
My research focuses on the application of remote sensing to rivers as a means of more efficiently characterizing fluvial systems, primarily channel form and behavior. More specifically, I develop, test, and apply methods of measuring various river attributes, such as depth, streambed composition, turbidity, and flow velocity, from different types of remotely sensed data, including multi- and hyperspectral images and near-infrared and green LiDAR. These techniques provide higher resolution, essentially continuous data over larger spatial extents than could be surveyed via conventional field methods and thus could facilitate river research and management. My research involves a combination of numerical radiative...
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Southern Nevada Water Authority will add new modeling and analytical capabilities to tools developed as part of a previous WaterSMART Climate Analysis Tools Grant that assessed impacts of climate change on water quality and sediment transport in Lake Mead. Project results are intended to increase an understanding of how water quality characteristics and nutrient levels in Lake Mead may be affected by climate change.
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This project evaluated the potential impacts of storm surges and relative sea level rise on nesting geese and eider species that commonly breed on the Yukon-Kuskokwim Delta (Y-K Delta). Habitat suitability maps for breeding waterbirds were developed to identify current waterbird breeding habitat and distributions. Short-term climate change impacts were assessed by comparing nest densities in relation to magnitude of storms that occurred in the prior fall from 2000-2013. Additionally, nest densities were modeled using random forests in relation to the time-integrated flood index (e.g., a storm specific measure accounting for both water depth and duration of flooding) for four modeled storms (2005, 2006, 2009, and...
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: DELTAS, DELTAS, DUCKS/GEESE/SWANS, DUCKS/GEESE/SWANS, Decision Support, All tags...
The project will complete an extensive mapping of coastal change along the entire coastline of the Western Alaska Landscape Conservation Cooperative (LCC). The work will provide important baseline information on the distribution and magnitude of landscape changes over the past 41 years. The extent of change to the coastline and to coastal features, such as spits, barrier islands, estuaries, tidal guts and lagoons, is known to be substantial in some areas along the coast (e.g., portions of the Yukon–Kuskokwim Delta), although the extent of change along the full Bering Sea coast is not well documented. With this analysis, changes can be summarized for different land ownerships or other units to assess the extent of...
Categories: Data, Project; Tags: BARRIER ISLANDS, BARRIER ISLANDS, COASTAL LANDFORMS/PROCESSES, COASTAL LANDFORMS/PROCESSES, DEGRADATION, All tags...
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Description of Work U.S. Geological Survey (USGS) provided a one-week training course for ''Geomorphic Analysis of Fluvial Systems'' to U.S. Environmental Protection Agency and other state and local agencies in Chicago. This provided an introduction to the concepts of how stream channels change over time due to natural and human-caused changes in the watershed. This training assisted managers in understanding the goals and limits of stream restoration specific to Great Lakes streams. Much of the training centered on sediment movement in channels and also was applicable to EPA managers working on clean-sediment TMDLs and nutrient-sediment interactions.
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The purpose of the research is to develop a storm surge model for the YK Delta area and to apply it to determine biological impacts of storm surges in the current and future climates. This research is needed as storm surges are expected to be more frequent and more severe in the YK Delta area due to climate change and sea level rise. The biological impacts in the YK Delta due to the changed storm surges could be extreme. With the model, we will study 10 storms over the 1980 – 2011 time period. Model output will be used to determine the recurrence interval for the individual storms. With the model output from individual storms, an inundation index (time-integral of water level during a storm) will be calculated....
Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ARCHAEOLOGICAL AREAS, ARCHAEOLOGICAL AREAS, Academics & scientific researchers, COASTAL AREAS, COASTAL AREAS, All tags...
Many hydrogeomorphic processes are poorly understood. Botanical evidence studies can improve flood or debris flow prediction for streams with short or no gaging-station records. Improvement of our understanding of the relations among fluvial geomorphology, sedimentation, mass wasting, plant chemistry, and plant ecology will provide insight into such problems as assessment of water quality, wetland loss, long-term effects of climatic variation, and the frequency and magnitude of destructive hydrogeomorphic phenomena. Botanical and geomorphic analyses may provide substantial information about variable source areas of runoff production and ground-water recharge. The general objectives of this project include: 1) the...
The objectives of my research are to quantify mercury export and yields from multi-scaled watershed systems and to compare and contrast different forms of Hg (i.e. methylmercury) to understand the processes governing the dynamics of Hg transport and cycling. I also aim to determine an accurate understanding of the estimates of Hg stored in permafrost.
Understanding the effects of climatic variability is important to development of water resources, mitigation of flood hazards, and interpretation of geomorphic surfaces. Climatic variability, which is characterized by temporal changes in variability of seasonal climate that spans decades or centuries, may be more important to water-resources evaluations than changes in mean climatic conditions. Changes in variability of climate has a large effect on the probability of occurrence of extreme events, such as floods or droughts. Understanding of climatic variability and its effect on the landscape is of paramount importance for estimation of flood frequency, sediment transport rates, and long-term watershed and channel...


    map background search result map search result map A Study of Climate Change Impacts on Water Quality and Internal Nutrient Recycling in Lake Mead, Arizona-Nevada Building local capacity to address nonpoint source problems Storm Surge Impacts on Biological Resources in the Yukon Kuskokwim Delta The impacts of storm surges on breeding waterbirds on the Yukon-Kuskokwim Delta, Alaska: past effects and future projected impacts A Study of Climate Change Impacts on Water Quality and Internal Nutrient Recycling in Lake Mead, Arizona-Nevada The impacts of storm surges on breeding waterbirds on the Yukon-Kuskokwim Delta, Alaska: past effects and future projected impacts Storm Surge Impacts on Biological Resources in the Yukon Kuskokwim Delta Building local capacity to address nonpoint source problems