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Showing 1 to 15 of 15 for “"Atchafalaya river"”.
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Restoration and Water Management in the Atchafalaya River Basin, Louisiana
… approaches. Current restoration efforts in the Atchafalaya River Basin (ARB) of Louisiana are faced with this challenge. Water management in the ARB has evolved from strong federal control to establish the ARB as a primary floodway of the Mississippi River and Tributaries Project to a state and …
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Influences of Channel Dredging on Avulsion Potential at the Atchafalaya River
… increase of water discharge from the Mississippi River to its distributary channel; the Atchafalaya River. If not prevented by man-made structures, the complete capture of the Mississippi River by the Atchafalaya River was predicted. The USACE report cites multiple causes for the observed increase …
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The effect of habitat change on nutrient removal in the Atchafalaya River Basin, Louisiana
The Mississippi and Atchafalaya rivers are the major sources of freshwater and nutrients to the Gulf of Mexico. Increased nutrient loads from these rivers exacerbate eutrophication in coastal receiving waters and contribute to the large area of hypoxia that develops seasonally in the Gulf. Levees …
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Nitrogen and Carbon Export to the Gulf of Mexico by the Atchafalaya River, a Major Distributary of the Mississippi River
… nitrate-nitrogen, from the Mississippi-Atchafalaya River system. The 2008 Gulf Hypoxia Action Plan calls for river corridor wetland restoration to reduce nitrate loads, but it is largely unknown how effective riverine wetland systems in the lower Mississippi River (MR) are for nitrate …
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Spatial and Temporal Variability of Particulate and Chromophoric Dissolved Organic Matter Absorption in the Northern Gulf of Mexico
… sampling. Analysis of the Mississippi and Atchafalaya River plumes took place on board the RIV Pelican on two separate cruises. MagMix-1 occurred from May 1 to May 8, 2008 and corresponded to the highest discharge periods for both rivers for 2008; MagMix-11 took place October 31 to November …
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Hydrodynamic and sediment transport modeling of deltaic sediment processes
… model suite. A finite element mesh of the lower Atchafalaya River and the delta was developed, using the Surface Water Modeling System (SMS) software package. Calibration and validation of the model were performed, using data collected during field surveys and from available Atchafalaya River …
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Fine-grained sedimentation on the Chenier Plain Coast and inner continental shelf, northern Gulf of Mexico
… study constrains the present influence of the Atchafalaya River on stratigraphic evolution of the inner continental shelf in western Louisiana. Sedimentary and acoustic data are used to identify the western limit of the distal Atchafalaya prodelta and to estimate the proportion of Atchafalaya …
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Fine-grained sedimentation on the Chenier Plain Coast and inner continental shelf, northern Gulf of Mexico
… study constrains the present influence of the Atchafalaya River on stratigraphic evolution of the inner continental shelf in western Louisiana. Sedimentary and acoustic data are used to identify the western limit of the distal Atchafalaya prodelta and to estimate the proportion of Atchafalaya …
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EFFECTS OF FLOW REGIME ON FISHES AND FISHERIES: FROM LIFE HISTORIES TO ECOSYSTEM SERVICES
… other and influenced by flow regime in a large river-floodplain ecosystem – the Atchafalaya River in Louisiana. I first developed a model of denitrification in the Atchafalaya River. Denitrification rates ranged from 5,394 kg N y-1 (3.07 kg N km-2 y-1) in 1988 to 17,420 kg N y-1 (9.92 kg N km-2 …
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Environmental restoration in the Atchafalaya Basin : boundaries and interventions
The Atchafalaya River is a 135-mile long river in Louisiana. This makes it the largest distributary of the Mississippi. In this thesis, I will review the ways in which the Atchafalaya Basin is described as a complex system by the two agencies that are responsible for its management, the US Army …
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Geomorphic History of the Atchafalaya Backwater Area: Upper Deltaic Plain Development
… have produced conceptual models of Mississippi River delta plain development which divide the deltaic plain into upper and lower reaches. The upper deltaic plain has been described as an area composed mainly of lacustrine, lacustrine delta, backswamp, and crevasse channels, with minimal …
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Floodplain Hydrology and Biogeochemistry
River-floodplain connectivity is defined as the water mediated transfer of materials and energy between a river or stream and its adjacent floodplain. It is generally accepted that restoring and/or enhancing river-floodplain connectivity can reduce the downstream flux of reactive solutes such as …
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Function and diversity of the Ship, Trinity, and Tiger Shoal Complex, with emphasis on macrofauna and spawning blue crabs (Callinectes sapidus)
… relationships with salinity and proximity to the Atchafalaya River, indicating that crabs predominately migrate directly offshore from their home estuary, including from low salinity environments. Isotopic analysis also suggests that crabs utilize offshore prey resources and do not re-enter …
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Bottom boundary layer physics and sediment transport along a transgressive sand body, Ship Shoal, south-central Louisiana: implications for fluvial sediments and winter storms
Ship Shoal, a shore-parallel sand body, was recently recognized as having a unique physical and biological environment and also as a potential sand resource for coastal restoration in coastal Louisiana. Little is known regarding such dynamics, in concert with fluvial sediments and winter storms, …
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A Multidisciplinary Approach for Determining the Extents of the Beds of Complex Natural Lakes in Louisiana
In Louisiana, the beds of natural lakes are owned by the state. The locations of property boundary lines separating state property from private lands have usually been set by determining the levels of natural monuments known as ordinary high water marks. The term is confusing and subjective, …