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Louisiana State University
1.
BryantMason, April Elizabeth.
Nitrogen and Carbon Export to the Gulf of Mexico by the Atchafalaya River, a Major Distributary of the Mississippi River.
Degree: PhD, Environmental Sciences, 2012, Louisiana State University
URL: etd-11112012-181035
;
https://digitalcommons.lsu.edu/gradschool_dissertations/900 
► Summer hypoxia in the Northern Gulf of Mexico has been attributed to large nutrient inputs, especially nitrate-nitrogen, from the Mississippi-Atchafalaya River system. The 2008 Gulf…
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▼ Summer hypoxia in the Northern Gulf of Mexico has been attributed to large nutrient inputs, especially 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 removal. This dissertation research examined nitrate and carbon export from the Atchafalaya River (AR) to: (1) determine nitrate processing by a river swamp basin under varied seasons, (2) investigate nitrate retention and processing in the AR during a major flood event, and (3) assess the relationship of nitrate with organic and inorganic carbon in the AR and MR. I investigated changes in nitrate, δ15NNO3, and δ18ONO3 for water samples collected biweekly to monthly from April 2007 to April 2009 at the AR input- (Simmesport) and outlets (Morgan City and Wax Lake) and on the MR at Baton Rouge. Water samples were also collected weekly during the 2011 major MR spring flood (May to July) and analyzed for nitrate isotopes and concentrations. AR outflow had significantly, but only slightly lower mean nitrate concentrations (1.1 mg L-1) and δ15NNO3 (7.0o/oo) than the MR (1.5 mg L-1, 7.7o/oo); with no difference in δ18ONO3 (4.6o/oo). Limited differences in both isotope values between the two rivers reflect limited nitrate processing in the Atchafalaya. During the 2011 spring flood a total nitrate-nitrogen mass load of 89,600 megagrams (Mg) entered the basin and 83,200 Mg exited the basin, resulting in a low 7% retention of NO3N. There was little variation in δ15NNO3 and δ18ONO3 values between the input and two outlets, further indicating little nitrate processing in this system. The AR appears to have an additional and potentially higher quality organic carbon source from the Red River. The findings in this dissertation research show that as currently designed, dissolved nutrients like nitrate and DOC in the Atchafalaya are transported with little processing. This suggests the Atchafalaya and potentially other similar systems may be ineffective in reducing riverine nitrate because of limited residence time necessary for the biochemical reactions to occur.
Subjects/Keywords: nitrate isotopes; Mississippi River; Atchafalaya River; carbon; Nitrogen
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APA (6th Edition):
BryantMason, A. E. (2012). Nitrogen and Carbon Export to the Gulf of Mexico by the Atchafalaya River, a Major Distributary of the Mississippi River. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-11112012-181035 ; https://digitalcommons.lsu.edu/gradschool_dissertations/900
Chicago Manual of Style (16th Edition):
BryantMason, April Elizabeth. “Nitrogen and Carbon Export to the Gulf of Mexico by the Atchafalaya River, a Major Distributary of the Mississippi River.” 2012. Doctoral Dissertation, Louisiana State University. Accessed March 05, 2021.
etd-11112012-181035 ; https://digitalcommons.lsu.edu/gradschool_dissertations/900.
MLA Handbook (7th Edition):
BryantMason, April Elizabeth. “Nitrogen and Carbon Export to the Gulf of Mexico by the Atchafalaya River, a Major Distributary of the Mississippi River.” 2012. Web. 05 Mar 2021.
Vancouver:
BryantMason AE. Nitrogen and Carbon Export to the Gulf of Mexico by the Atchafalaya River, a Major Distributary of the Mississippi River. [Internet] [Doctoral dissertation]. Louisiana State University; 2012. [cited 2021 Mar 05].
Available from: etd-11112012-181035 ; https://digitalcommons.lsu.edu/gradschool_dissertations/900.
Council of Science Editors:
BryantMason AE. Nitrogen and Carbon Export to the Gulf of Mexico by the Atchafalaya River, a Major Distributary of the Mississippi River. [Doctoral Dissertation]. Louisiana State University; 2012. Available from: etd-11112012-181035 ; https://digitalcommons.lsu.edu/gradschool_dissertations/900
Louisiana State University
2.
DuMars, Anton J.
Distributary mouth bar formation and channel bifurcation in the Wax Lake Delta, Atchafalaya Bay, Louisiana.
Degree: MS, Earth Sciences, 2002, Louisiana State University
URL: etd-1112102-201553
;
https://digitalcommons.lsu.edu/gradschool_theses/1856
► The Mississippi River has undergone at least seven cyclic avulsions during the Holocene epoch. The latest avulsion, down the Atchafalaya River into the Gulf of…
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▼ The Mississippi River has undergone at least seven cyclic avulsions during the Holocene epoch. The latest avulsion, down the Atchafalaya River into the Gulf of Mexico, has produced two bayhead deltas prograding into Atchafalaya Bay. The Wax Lake Delta, typical of other Mississippi sub-deltas, has a natural anastomosing channel pattern. In contrast, the Atchafalaya Delta, situated in the eastern side of the Bay, has experienced sporadic and limited growth due to the dredging of a navigation channel below natural depth. Channel bifurcation, and sediment transport processes and responses, were investigated in the Wax Lake Delta, using channel flow velocities, suspended sediment concentrations, cross-channel bottom profiles, and short push-core stratigraphy during flood and non-flood conditions. Center channel flow velocities averaged 2 to 2 1/2 times higher during flood conditions than during non-flood conditions. Velocities maintained near constant values from proximal to distal, then decreased near distributary channel mouths. Cross-channel flow velocities reached a maximum above the thalweg. During non-flood conditions, flow velocities, inversely proportional to tidal fluctuations, were greatly reduced during strong southerly winds; however, tidal and wind influences were negated by flood condition flow velocities. Homogeneous suspended sediment concentrations of coarse silt to very fine sand (mean grain size) were found throughout the system, indicating well-mixed, turbulent flow. Suspended sediment concentrations were up to 20 times higher during flood than during non-flood conditions. Most calculated boundary shear stresses were greater than critical boundary shear stresses, indicating little deposition was occurring in distributary channels during sample collection. Bedload sediment size remained near constant throughout the system in all samples from proximal to distal end, indicate sediment moves efficiently through the deltaic system with very little grain size fractionation in suspended or bedload sediments. Downstream sediment fluxes vary directly with velocity. Thus, the thalweg transports the highest volume of sediment per unit time even though the sediment concentrations per unit volume are homogeneous. Sediment deposition per unit time is greatest at the distributary mouth channel thalweg, where velocities slow, creating a distributary mouth bar and subsequent channel bifurcation. This process has been termed sediment flux controlled deposition.
Subjects/Keywords: sediment flux; atchafalaya; mississippi river; bifurcate; delta
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APA (6th Edition):
DuMars, A. J. (2002). Distributary mouth bar formation and channel bifurcation in the Wax Lake Delta, Atchafalaya Bay, Louisiana. (Masters Thesis). Louisiana State University. Retrieved from etd-1112102-201553 ; https://digitalcommons.lsu.edu/gradschool_theses/1856
Chicago Manual of Style (16th Edition):
DuMars, Anton J. “Distributary mouth bar formation and channel bifurcation in the Wax Lake Delta, Atchafalaya Bay, Louisiana.” 2002. Masters Thesis, Louisiana State University. Accessed March 05, 2021.
etd-1112102-201553 ; https://digitalcommons.lsu.edu/gradschool_theses/1856.
MLA Handbook (7th Edition):
DuMars, Anton J. “Distributary mouth bar formation and channel bifurcation in the Wax Lake Delta, Atchafalaya Bay, Louisiana.” 2002. Web. 05 Mar 2021.
Vancouver:
DuMars AJ. Distributary mouth bar formation and channel bifurcation in the Wax Lake Delta, Atchafalaya Bay, Louisiana. [Internet] [Masters thesis]. Louisiana State University; 2002. [cited 2021 Mar 05].
Available from: etd-1112102-201553 ; https://digitalcommons.lsu.edu/gradschool_theses/1856.
Council of Science Editors:
DuMars AJ. Distributary mouth bar formation and channel bifurcation in the Wax Lake Delta, Atchafalaya Bay, Louisiana. [Masters Thesis]. Louisiana State University; 2002. Available from: etd-1112102-201553 ; https://digitalcommons.lsu.edu/gradschool_theses/1856
Louisiana State University
3.
Feng, Zhixuan.
Hydrodynamic response to cold fronts along the Louisiana coast.
Degree: MS, Oceanography and Atmospheric Sciences and Meteorology, 2009, Louisiana State University
URL: etd-06102009-153456
;
https://digitalcommons.lsu.edu/gradschool_theses/3221
► Cold fronts play important roles in flushing water out of the Louisiana estuaries. This study is aimed at examining the impact of cold front passages…
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▼ Cold fronts play important roles in flushing water out of the Louisiana estuaries. This study is aimed at examining the impact of cold front passages on the hydrodynamics in autumn-winter-spring of 2006-2007, and tries to determine the geographic difference, correlation and relative importance of winds, tides, and river discharge on water level variability and flow field. The amplitude spectra of water level reveal that diurnal tides dominate most stations. Areas west of 91°W have relatively high semidiurnal tides. The subtidal fluctuations are mainly wind-driven. Only the station in the Atchafalaya River shows obvious response to the spring flood of the Mississippi/Atchafalaya Rivers. Coastal bays have different water exchange rates depending on their water body area and geomorphology. Five largest flushing events correspond to migrating extratropical cyclones with frontal orientation perpendicular to the coastline, suggesting that wind direction is one of the controlling factors in the flushing rate and total transport. Both alongshore and cross-shore winds may effectively induce bay-shelf exchange. Northwest/north winds appear to be the most effective wind forcing in driving water movement from bay to shelf. Strong cold fronts may flush more than 40% of the bay waters onto the shelf within a period less than 40 hours. The near-surface current on the Louisiana inner shelf is mainly wind-driven, but tidal forcing becomes more important in the sub-surface layers or in the vicinity of the coastline of shallow waters. A prevailing down-coast flow occurs 81% and 70% of the time at CSI-6 and CSI-3, respectively. Strong cold front events may disturb this down-coast flow system by inducing a 1- to 3-day up-coast flow. At CSI-6, the Mississippi river discharge has little influence in non-flood seasons. During the period of spring flood, however, the large amount of freshwater exerts significant barotropic and baroclinic forcings on the current field and reinforces the down-coast flow. The analytical model reveals that the amplitudes of water level variations induced by alongshore and cross-shore wind forcings have the same order of magnitude (i.e., 10-1 m), indicating that they play almost equally important roles in driving the subtidal water level variability inside the bays.
Subjects/Keywords: cold fronts; Mississippi and Atchafalaya River discharge; subtidal wind-driven oscillations; bay-shelf exchange; alongshore and cross-shore wind forcings; down-coast westward flow; Louisiana estuaries and inner continental shelf
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APA (6th Edition):
Feng, Z. (2009). Hydrodynamic response to cold fronts along the Louisiana coast. (Masters Thesis). Louisiana State University. Retrieved from etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221
Chicago Manual of Style (16th Edition):
Feng, Zhixuan. “Hydrodynamic response to cold fronts along the Louisiana coast.” 2009. Masters Thesis, Louisiana State University. Accessed March 05, 2021.
etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221.
MLA Handbook (7th Edition):
Feng, Zhixuan. “Hydrodynamic response to cold fronts along the Louisiana coast.” 2009. Web. 05 Mar 2021.
Vancouver:
Feng Z. Hydrodynamic response to cold fronts along the Louisiana coast. [Internet] [Masters thesis]. Louisiana State University; 2009. [cited 2021 Mar 05].
Available from: etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221.
Council of Science Editors:
Feng Z. Hydrodynamic response to cold fronts along the Louisiana coast. [Masters Thesis]. Louisiana State University; 2009. Available from: etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221
University of Arkansas
4.
McCain, Gordon William.
Influences of Channel Dredging on Avulsion Potential at the Atchafalaya River.
Degree: MS, 2016, University of Arkansas
URL: https://scholarworks.uark.edu/etd/1559
► In 1950, the U.S. Army Corps of Engineers (USACE) reported a rapid increase of water discharge from the Mississippi River to its distributary channel;…
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▼ In 1950, the U.S. Army Corps of Engineers (USACE) reported a rapid 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 in
discharge partitioning, yet fails to assess the largescale channel dredging operations conducted throughout the
Atchafalaya River Basin during the 1930's and 1940's as a potential cause for the increased
discharge. To assess the role man-made interventions, specifically channel dredging, played in the increase of
discharge partitioning down the
Atchafalaya River, this study incorporates a one-dimensional backwater flow model based on conservation of fluid mass and momentum equations and utilizes the geological and engineering data of the
Atchafalaya,
Mississippi and Old
River Systems compiled by the USACE from 1880-1950. Two models were developed from 75 channel cross-sections measured during hydrographic surveys of the
Atchafalaya Basin and
river systems in 1916-17 and 1950, representing the pre-dredging and post-dredging conditions of the
Atchafalaya River. A third model was adapted from the 1916-17 pre-dredging model and incorporates the dredging of a 4 meter deep channel from Morgan City, Louisiana to the headwaters of the
Atchafalaya River at Simmesport, Louisiana. Based on this one-dimensional modeling approach, comparison of the 1916-17 Pre-Dredging (16%) and Proposed Dredging (26%) models of
discharge partition percentages flowing into the
Atchafalaya River from the
Mississippi River indicates that dredging is potentially associated with an increase of
Atchafalaya River flow partition
discharge of +10% under 1916-17 historically measured
discharge conditions of 18,000 (m3/s) total
discharge above the bifurcation (TDAB). By comparison, the historically measured
discharge partition percentages recorded by the USACE for 1916-17 (11%) at 18,000 (m3/s) TDAB and 1950 (22%) at 25,000 (m3/s) TDAB indicate a similar increase in
discharge partitioning of +11% change between 1916-17 pre-dredging and 1950 post-dredging conditions. However, due to the limitations of the one-dimensional model to simulate flow through additional downstream bifurcations, further multi-dimensional analysis is needed before definite causation can be warranted.
Advisors/Committee Members: John B. Shaw, Doy L. Zachry, Walter L. Manger.
Subjects/Keywords: Earth sciences; Atchafalaya river; Bifurcation; Channel avulsion; Dredging; Mississippi delta; One-dimensional flow model; Geology; Geomorphology; Hydrology
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APA (6th Edition):
McCain, G. W. (2016). Influences of Channel Dredging on Avulsion Potential at the Atchafalaya River. (Masters Thesis). University of Arkansas. Retrieved from https://scholarworks.uark.edu/etd/1559
Chicago Manual of Style (16th Edition):
McCain, Gordon William. “Influences of Channel Dredging on Avulsion Potential at the Atchafalaya River.” 2016. Masters Thesis, University of Arkansas. Accessed March 05, 2021.
https://scholarworks.uark.edu/etd/1559.
MLA Handbook (7th Edition):
McCain, Gordon William. “Influences of Channel Dredging on Avulsion Potential at the Atchafalaya River.” 2016. Web. 05 Mar 2021.
Vancouver:
McCain GW. Influences of Channel Dredging on Avulsion Potential at the Atchafalaya River. [Internet] [Masters thesis]. University of Arkansas; 2016. [cited 2021 Mar 05].
Available from: https://scholarworks.uark.edu/etd/1559.
Council of Science Editors:
McCain GW. Influences of Channel Dredging on Avulsion Potential at the Atchafalaya River. [Masters Thesis]. University of Arkansas; 2016. Available from: https://scholarworks.uark.edu/etd/1559
Louisiana State University
5.
Munnelly, Ryan Thomas.
Fishes Associated with Oil and Gas Platforms in Louisiana's River-Influenced Nearshore Waters.
Degree: MS, Oceanography and Atmospheric Sciences and Meteorology, 2016, Louisiana State University
URL: etd-04112016-091604
;
https://digitalcommons.lsu.edu/gradschool_theses/1070
► A distinctive feature of coastal Louisiana is the unrivaled network of oil and gas installations (platforms) extending from inshore waters to the deep Gulf of…
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▼ A distinctive feature of coastal Louisiana is the unrivaled network of oil and gas installations (platforms) extending from inshore waters to the deep Gulf of Mexico. Since 2007 there has been a 38% reduction in platform numbers with the highest removal rates occurring in shallow (< 18 m) nearshore waters. Many fishes and invertebrates are attracted to platforms, presenting a unique opportunity to study detailed species-specific responses to the river-influenced hydrographic characteristics of Louisiana’s nearshore zone (5–25 km water depth). Prior studies of fishes around platforms focused on a few relatively large platforms in water depths ≥ 18 m. However, about one-third of all platforms are small, unmanned and non-drilling platforms located in waters < 18 m depth. Paired video and hydrographic data were collected at 150 small platforms in < 18 m water depth during the summers of 2013–2014. Fifty-four species of fishes were associated with small platforms. The assemblage(s) included juveniles of 29 species, indicating the importance of nearshore platforms as diverse nursery habitat. The coastal zone was divided into three regions based on broad-scale interactions between freshwater input and bathymetry driving major distinctions in interregional hydrography and fish assemblages. Co-occurring within this expansive artificial reef network is the second largest hypoxic area (dissolved oxygen (DO) < 2.0 mg l−1) on Earth. Platforms offer reef-like habitat features in the upper water column that may offer refugia for some reef-associated species during hypoxic events. Significant intraregional differences in physicochemical features were related to the presence of hypoxia (defined as DO < 50% saturation), as well as the distribution of sandy shoals. Eleven species accounted for most of the assemblage dissimilarities, composing ~93% of fishes observed. Habitat suitability indices for these 11 species provided information about habitat selection across horizontal and vertical physicochemical gradients throughout the coastal zone, and within hypoxic and well-oxygenated stratified water columns. East Bay, near the outlet of the Mississippi River, exhibited less hypoxia and a distinct fauna that included four adult goliath grouper (Epinephelus itajara). This endangered fish was observed during spawning season (summer), suggesting that East Bay might support a spawning aggregation.
Subjects/Keywords: fish; nearshore; Louisiana; oil and gas; platform; river; Mississippi; Atchafalaya; hydrography; eutrophication; hypoxia; shoal
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APA (6th Edition):
Munnelly, R. T. (2016). Fishes Associated with Oil and Gas Platforms in Louisiana's River-Influenced Nearshore Waters. (Masters Thesis). Louisiana State University. Retrieved from etd-04112016-091604 ; https://digitalcommons.lsu.edu/gradschool_theses/1070
Chicago Manual of Style (16th Edition):
Munnelly, Ryan Thomas. “Fishes Associated with Oil and Gas Platforms in Louisiana's River-Influenced Nearshore Waters.” 2016. Masters Thesis, Louisiana State University. Accessed March 05, 2021.
etd-04112016-091604 ; https://digitalcommons.lsu.edu/gradschool_theses/1070.
MLA Handbook (7th Edition):
Munnelly, Ryan Thomas. “Fishes Associated with Oil and Gas Platforms in Louisiana's River-Influenced Nearshore Waters.” 2016. Web. 05 Mar 2021.
Vancouver:
Munnelly RT. Fishes Associated with Oil and Gas Platforms in Louisiana's River-Influenced Nearshore Waters. [Internet] [Masters thesis]. Louisiana State University; 2016. [cited 2021 Mar 05].
Available from: etd-04112016-091604 ; https://digitalcommons.lsu.edu/gradschool_theses/1070.
Council of Science Editors:
Munnelly RT. Fishes Associated with Oil and Gas Platforms in Louisiana's River-Influenced Nearshore Waters. [Masters Thesis]. Louisiana State University; 2016. Available from: etd-04112016-091604 ; https://digitalcommons.lsu.edu/gradschool_theses/1070
Louisiana State University
6.
Rosen, Timothy.
Long-term total suspended sediment yield of coastal Louisiana rivers with spatiotemporal analysis of the Atchafalaya River Basin and Delta Complex.
Degree: MS, Environmental Sciences, 2012, Louisiana State University
URL: etd-01152013-123524
;
https://digitalcommons.lsu.edu/gradschool_theses/1798
► The modern day Mississippi River Delta Plain and the Louisiana Chenier Plain have been greatly altered through anthropogenic changes to course and hydrological conditions of…
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▼ The modern day Mississippi River Delta Plain and the Louisiana Chenier Plain have been greatly altered through anthropogenic changes to course and hydrological conditions of the Mississippi River and local rivers, most notably by levees that have excluded the Mississippi River from the delta plain. This has slowed accretion and increased land loss destroying vast quantities of marsh, endangering many coastal communities. This master’s thesis examined long-term total suspended sediment yield of four Chenier Plain rivers, total suspended sediment yield of the Mississippi River under different flow conditions, and total suspended sediment dynamics of the Atchafalaya River in relation to Atchafalaya River Delta Complex growth and Atchafalaya River Basin sedimentation. Results estimated average annual total suspended sediment yield to coastal Louisiana of 176.3 megatonnes (MT), with the Mississippi River contributing 72% and the Atchafalaya River contributing 28%. The Chenier Plain rivers contributed a negligible amount to this total, averaging annually 342,950 tonnes, with the Sabine contributing 62% to this total (213,100 tonnes), while the Calcasieu River supplied 46,850 tonnes, Mermentau River 40,200 tonnes, and Vermilion River 42,800 tonnes. The hydrograph-based approach for quantification of actual available total suspended sediment of the Mississippi River identified the rising limb of the flood pulse during Action Stage (12.1-14.6 m) and Flood Stage (14.6-16.8 m) maximized total suspended sediment with 28.9 MT supplied. Atchafalaya River Delta Complex growth rate was 2.8 km2 yr-1 (1989-2010). Both Atchafalaya River Morgan City subdelta (ARSD) and Wax Lake Outlet Subdelta (WLSD) growth rates were influenced by large floods that helped maintain positive growth rates, and tropical systems that decreased growth rates over the period. Average annual sedimentation rate in the Atchafalaya River Basin (ARB) was estimated between 30.4-79.1 mm yr-1, while total suspended sediment retention averaged 5.3 MT yr-1 (1996-2010), but interannual variation demonstrates that the ARB has reached an equilibrium and resembles a fluvially dominated system rather than lacustrine or palustrine system. Results from this study provide an exhaustive understanding of riverine sediment availability to coastal Louisiana and the impacts on coastal evolution, providing information that land managers can use to model restoration of coastal Louisiana.
Subjects/Keywords: Mississippi; Louisiana; Chenier Plain; River Hydrology; Sediment; Coastal; Atchafalaya
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APA (6th Edition):
Rosen, T. (2012). Long-term total suspended sediment yield of coastal Louisiana rivers with spatiotemporal analysis of the Atchafalaya River Basin and Delta Complex. (Masters Thesis). Louisiana State University. Retrieved from etd-01152013-123524 ; https://digitalcommons.lsu.edu/gradschool_theses/1798
Chicago Manual of Style (16th Edition):
Rosen, Timothy. “Long-term total suspended sediment yield of coastal Louisiana rivers with spatiotemporal analysis of the Atchafalaya River Basin and Delta Complex.” 2012. Masters Thesis, Louisiana State University. Accessed March 05, 2021.
etd-01152013-123524 ; https://digitalcommons.lsu.edu/gradschool_theses/1798.
MLA Handbook (7th Edition):
Rosen, Timothy. “Long-term total suspended sediment yield of coastal Louisiana rivers with spatiotemporal analysis of the Atchafalaya River Basin and Delta Complex.” 2012. Web. 05 Mar 2021.
Vancouver:
Rosen T. Long-term total suspended sediment yield of coastal Louisiana rivers with spatiotemporal analysis of the Atchafalaya River Basin and Delta Complex. [Internet] [Masters thesis]. Louisiana State University; 2012. [cited 2021 Mar 05].
Available from: etd-01152013-123524 ; https://digitalcommons.lsu.edu/gradschool_theses/1798.
Council of Science Editors:
Rosen T. Long-term total suspended sediment yield of coastal Louisiana rivers with spatiotemporal analysis of the Atchafalaya River Basin and Delta Complex. [Masters Thesis]. Louisiana State University; 2012. Available from: etd-01152013-123524 ; https://digitalcommons.lsu.edu/gradschool_theses/1798
McGill University
7.
Smirnov, Alexei.
Spatial and Seasonal Variations of Pollen in the Mississippi and Atchafalaya Rivers, U.S.A.
Degree: MS, Department of Geography, 1995, McGill University
URL: https://escholarship.mcgill.ca/downloads/2514nn874.pdf
;
https://escholarship.mcgill.ca/concern/theses/wd375z79t
► The objective of this research is to develop a better understanding of the nature of transport and distribution of pollen in river systems. Interpretation of…
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▼ The objective of this research is to develop a better understanding of the nature of transport and distribution of pollen in river systems. Interpretation of palynological data from sedimentary deposits requires an understanding of processes of pollen transport and deposition. However, research on taphonomic processes in dynamically variable environments, such as rivers, has been limited and inconclusive. The two studies reported here focus on questions arising from previous research, specifically the relationship of pollen concentration and distribution to flow velocity, distance from river bottom, and sediment supply. […]
L'objectif de cette recherche est de développer une meilleure compréhension de la nature du transport et de la distribution du pollen dans les bassins fluviaux. L'interprétation des données palynologiques provenant des dépôts sédimentaires demande une compréhension des processus de transport et de dépôt du pollen. Cependant, la recherche sur les processus taphonomiques dans des environnements dynamiquement variables, telles les rivières, est jusqu'ici très limitée et peu concluante. Les deux études dont il est question ici, traitent des questions soulevées par des recherches antérieures, spécifiquement du rapport entre la concentration, la distribution du pollen, et la vitesse du courant, la profondeur de la rivière et l'apport en sédiments. […]
Advisors/Committee Members: Chmura, Gail (Supervisor).
Subjects/Keywords: Pollen – Mississippi River.; Pollen – Louisiana – Atchafalaya River.
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APA (6th Edition):
Smirnov, A. (1995). Spatial and Seasonal Variations of Pollen in the Mississippi and Atchafalaya Rivers, U.S.A. (Masters Thesis). McGill University. Retrieved from https://escholarship.mcgill.ca/downloads/2514nn874.pdf ; https://escholarship.mcgill.ca/concern/theses/wd375z79t
Chicago Manual of Style (16th Edition):
Smirnov, Alexei. “Spatial and Seasonal Variations of Pollen in the Mississippi and Atchafalaya Rivers, U.S.A.” 1995. Masters Thesis, McGill University. Accessed March 05, 2021.
https://escholarship.mcgill.ca/downloads/2514nn874.pdf ; https://escholarship.mcgill.ca/concern/theses/wd375z79t.
MLA Handbook (7th Edition):
Smirnov, Alexei. “Spatial and Seasonal Variations of Pollen in the Mississippi and Atchafalaya Rivers, U.S.A.” 1995. Web. 05 Mar 2021.
Vancouver:
Smirnov A. Spatial and Seasonal Variations of Pollen in the Mississippi and Atchafalaya Rivers, U.S.A. [Internet] [Masters thesis]. McGill University; 1995. [cited 2021 Mar 05].
Available from: https://escholarship.mcgill.ca/downloads/2514nn874.pdf ; https://escholarship.mcgill.ca/concern/theses/wd375z79t.
Council of Science Editors:
Smirnov A. Spatial and Seasonal Variations of Pollen in the Mississippi and Atchafalaya Rivers, U.S.A. [Masters Thesis]. McGill University; 1995. Available from: https://escholarship.mcgill.ca/downloads/2514nn874.pdf ; https://escholarship.mcgill.ca/concern/theses/wd375z79t
. 
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