Regional AAG - 2008
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This project analyzes changes in the channel and disturbance zones of Finley Creek in southwest Missouri between 1955 and 2005 using historical aerial photos and GIS. Disturbance zones were classified into four types: extension, translation, chute cutoff, and megabar. Spatial analyses found tributary drainage area and valley characteristics strongly influence disturbance zone development, while riparian land cover has a negligible effect. Continued research will focus on factors controlling specific disturbance zone types.
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![Historical Analysis of Disturbance Zones on Finley Creek, Southwest Missouri Derek J. Martin a and Robert T. Pavlowskybc aResearch Specialist, Ozarks Environmental and Water Resources Institute, Missouri State University bDirector, Ozarks Environmental and Water Resources Institute, Missouri State University cProfessor of physical geography, Department of Geography, Geology and Planning, Missouri State University This project applies geographic information systems (GIS) and the use of historical aerial photograph analysis to quantify channel change and assess watershed- and reach-scale relationships among channel disturbance zones, riparian vegetation, bank erosion, and gravel bar distribution along Finley Creek, southwest Missouri. Historical aerial photograph coverage of the main stem of Finley Creek was acquired for the years 1955, 1979, and 2005. Channel bank lines, gravel bars, and riparian land cover were digitized from each of the georectified photographs and overlaid in a GIS in order to identify disturbance zones. Disturbance zones were organized into one of four types: (i) extension, (ii) translation, (iii) chute cutoff, or (iv) megabar. Spatial analyses were performed to examine possible controlling factors of disturbance type development and evolution such as tributary and sub-watershed inputs, valley characteristics, channel confinement, and landuse/landcover. Initial investigations suggest that tributary drainage area and land use as well as valley characteristics exert a strong influence on disturbance reach development, whereas riparian land cover appears to have a negligible effect. This finding may result from the “internal” forcing effect that excess gravel bar deposition has on the channel bank erosion that is independent of bank resistance offered by vegetation. Results and Conclusions Study Area Abstract Classification Finley Creek Watershed Characteristics Mega-bar Formation Kansas City Chute Cutoff Extension Translation St. Louis Geology Topography Tulsa N Research Objectives Landuse ,[object Object]](https://image.slidesharecdn.com/aagwestlakes-124576252133-phpapp02/85/Regional-AAG-2008-1-320.jpg)
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Research Inventy : International Journal of Engineering and Science is published by the group of young academic and industrial researchers with 12 Issues per year. It is an online as well as print version open access journal that provides rapid publication (monthly) of articles in all areas of the subject such as: civil, mechanical, chemical, electronic and computer engineering as well as production and information technology. The Journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence. Papers will be published by rapid process within 20 days after acceptance and peer review process takes only 7 days. All articles published in Research Inventy will be peer-reviewed.
Hp2002
This document describes numerical and analytical models used to study vertical solute transport processes in a domed peat bog in Switzerland. The models test the hypothesis that downward porewater flow from bog crests controls vertical solute distributions. The models show that before 7000 years ago, diffusion from underlying soils dominated solute transport. Between 7000-1250 years ago, both diffusion and downward advection influenced transport. After 1250 years ago, downward advection likely dominated as the bog dome grew and porewater flow patterns changed over time. Solute transport in peat bogs is controlled by both downward advection and upward diffusion, influenced by bog hydrology and stratigraphy.
GeoCENS presentation on The need of spacial data in geoscience and GeoCENS by...
The document discusses several topics related to environmental systems and human impacts:
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2. It discusses human impacts on sediment levels in the Rhine River catchment and the need for time-dependent spatial data on drivers like land use and responses like sediment flux.
3. Salmon populations are linked to river geomorphology, and there is a need for more data on this relationship to understand declines using tools like GeoCENS for visualization.
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The International Journal of Engineering and Science (The IJES)
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thesis summary bowen basin symposium poster meggie doran
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This document summarizes a study of erosion control techniques used by homeowners along the Severn River. Through interviews and site observations, the study examined a variety of structural (e.g. bulkheads, revetments) and non-structural (e.g. vegetation) techniques used to stabilize slopes. The location of each technique was mapped using GIS to analyze how factors like slope, elevation, wind exposure, and soil type relate to erosion risks and choice of mitigation approach. The study found that steeper slopes facing areas with higher wind and wave exposure were more prone to erosion. Homeowners with more financial means could implement hybrid structural-nonstructural approaches most effectively.
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While gully density increases with moderate relative uplift rates, this trend does not continue into the highest uplift regions, possibly due to dense vegetation obstructing mapping. Gully density is greater in basins underlain primarily by mudstone versus sandstone/conglomerate, as mudstones are more susceptible to weathering. Relative erosion rate, as approximated by depth of incision, does not significantly impact gully density across the study area. Rock type appears to exert more control on gully formation than relative erosion rate.
Assesment of the morphometry of gullies in kastina ala, nigeria
This document analyzes the morphometric characteristics of four gullies in Katsina-Ala local government area of Benue State, Nigeria to assess the severity of erosion and economic losses. Field measurements of gully length, depth, width, slope and volume were taken. A total volume of 17,680.36 cubic meters of soil was lost across 737.01 square meters, equivalent to an estimated remediation cost of NGN 61.5 million. The study aims to increase awareness of gully formation in the area to prevent further losses to arable land and property.
Final Report NRM 495 FINAL
Jared Sartini completed a capstone project studying the effects of a remnant dam on Rum Creek in Kent County, Michigan. Field measurements were taken upstream and downstream of the dam, including bank erosion rates, substrate composition, and macroinvertebrate sampling. No significant differences were found between upstream and downstream areas. The dam is scheduled for removal to restore natural stream functions. Post-removal monitoring over 3 years is planned to evaluate the ecological response.
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This document discusses climate change, agricultural drainage, and water storage in Minnesota. It notes that precipitation in Minnesota has become more variable and extreme rainfall events have increased in size. This challenges the assumption of stationarity used for drainage system design. The document explores how increased precipitation interacts with fixed geology to potentially enlarge drainage pathways and change channel forms. It also discusses Minnesota statutes related to adequate drainage outlets and maintaining water quality and storage. The question is posed of whether both improved agricultural drainage and water storage can be accomplished with increased precipitation under climate change.
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Drainage basin geomorphology can be summarized using morphometric analysis. Key variables include drainage patterns, stream order, basin shape, drainage density, relief, ruggedness, hypsometry, and topographic characteristics extracted from digital elevation models. Together these provide a quantitative description of basin form and allow comparison between basins. Basin form is influenced by climate, geology, and tectonics, and in turn influences hydrological and sediment transport processes within the basin. Morphometric analysis is needed to systematically describe basins and test hypotheses, but provides no direct insight into formative processes.
ISGS_projectdescriptions
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FINAL THESIS (December 2015)
1. The document analyzes the lateral migration of the Red River near Grand Forks, North Dakota over the past 142 years using historical aerial photographs, elevation models, and maps.
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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Regional AAG - 2008
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