The use of retro- and scenario-modeling to assess effects of 100+ years river of engineering and land-cover change on Middle and Lower Mississippi River flood stages

Remo, Jonathan W.F.; Pinter, Nicholas; Heine, Reuben A.

doi:10.1016/j.jhydrol.2009.07.049

Cited by 69 publications

(64 citation statements)

References 22 publications

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“…Similar to the LMOR, the MMR lacks navigation dams and is channelized through river training structures. Levees constrain floodplain connectivity and preclude the lower return interval floods from accessing much of the floodplain in this section, much of which is used for agriculture (Remo et al 2009). The MMR experiences higher variability in flow conditions relative to the UMR because (1) reservoir storage is relatively low throughout the UMR drainage basin, including tributaries, and (2) dam operation signals from the UMR and LMOR have effectively attenuated upon reaching the MMR because of cumulative additions from tributaries.…”

Section: Study Areamentioning

confidence: 98%

“…Floodplains provide productive soils, suitable topography, and abundant water resources that have historically driven agricultural, urban, and industrial development on these lands. The widespread construction of levees to protect human uses from floods have reduced the frequency of inundation of floodplains, yet contributed to increased river stages during flood events and increased discharges downstream of leveed areas (Di Baldassarre et al 2009, Remo et al 2009, Heine and Pinter 2012. Recent, extreme floods on the large rivers have prompted reconsideration of the role of floodplains in regulating flooding processes, mitigating flood damages, and providing conservation values (Sparks 1995).…”

Section: Introductionmentioning

confidence: 99%

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Stakeholder-led science: engaging resource managers to identify science needs for long-term management of floodplain conservation lands

Bouska¹,

Lindner²,

Paukert³

et al. 2016

E&S

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Section: Study Areamentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Stakeholder-led science: engaging resource managers to identify science needs for long-term management of floodplain conservation lands

Bouska¹,

Lindner²,

Paukert³

et al. 2016

E&S

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“…Although effective for maintaining a deep channel for navigation, river training structures have reduced channel complexity and reduced the extent of low-velocity habitats (Shields 1995, WEST Consultants Inc. 2000. The effect of river training structures on flood stages in the Unimpounded Reach remains controversial (Remo et al 2009, Watson et al 2013. Even with navigation infrastructure, annual dredging in excess of 8 million metric tons per year continues throughout the system to maintain the navigation channel (WEST Consultants Inc. 2000, USACE 2016).…”

Section: The Upper Mississippi River: Yesterday and Todaymentioning

confidence: 99%

Developing a shared understanding of the Upper Mississippi River: the foundation of an ecological resilience assessment

Bouska¹,

Houser²,

Jager³

et al. 2018

E&S

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. 2018. Developing a shared understanding of the Upper Mississippi River: the foundation of an ecological resilience assessment. Ecology and Society 23 (2) ABSTRACT. The Upper Mississippi River System (UMRS) is a large and complex floodplain river ecosystem that spans the jurisdictions of multiple state and federal agencies. In support of ongoing ecosystem restoration and management by this broad partnership, we are undertaking a resilience assessment of the UMRS. We describe the UMRS in the context of an ecological resilience assessment. Our description articulates the temporal and spatial extent of our assessment of the UMRS, the relevant historical context, the valued services provided by the system, and the fundamental controlling variables that determine its structure and function. An important objective of developing the system description was to determine the simplest, adequate conceptual understanding of the UMRS. We conceptualize a simplified UMRS as three interconnected subsystems: lotic channels, lentic off-channel areas, and floodplains. By identifying controlling variables within each subsystem, we have developed a shared understanding of the basic structure and function of the UMRS, which will serve as the basis for ongoing quantitative evaluations of factors that likely contribute to the resilience of the UMRS. As we undertake the subsequent elements of a resilience assessment, we anticipate our improved understanding of interactions, feedbacks, and critical thresholds will assist natural resource managers to better recognize the system's ability to adapt to existing and new stresses.

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“…Domeneghetti et al (2013) explicitly considered the uncertainty of geometrical parameter estimation for dykes as well as the final width and development time of levee breaches within a broad framework of evaluating the impact of uncertain boundary conditions in flood hazard mapping. Scenario-based studies of the changes of flood stage due to changes in channel geometry, roughness and expansion of the levee system have been attempted for the Mississippi River (Remo et al 2009). Haddad et al (2015) used the genetic algorithm to optimize the location and height of levees with the aim of reducing the overall flood damage.…”

Section: Introductionmentioning

confidence: 99%

Uncertainty in levee heights and its effect on the spatial pattern of flood hazard in a floodplain

Sanyal

2017

Hydrological Sciences Journal

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Levees are not usually built to a uniform height due to the varying priority of protecting urban and agricultural lands and they are often maintained in segments. Ad hoc alteration of the heights of these segments may aggravate flood conditions. Alterations lead to complex feedback loops in velocity and depth of water that are difficult to predict. A large number of possible configurations of the levee segments renders a deterministic modelling approach ineffective. The current analysis, based on a two-dimensional hydrodynamic model involving 1000 Monte Carlo realizations of randomly varying levee heights in segments, presents a methodology of dealing with the effect of uncertainty in levee heights on the inundation pattern in a probabilistic framework. Spatially distributed model outcomes include the likelihood of inundation, range and standard deviation of flood depths and maximum speed of water. The results indicate the necessity of adopting a probabilistic approach for robust flood hazard assessment when dealing with levee segments with uncertain heights. ARTICLE HISTORY

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The use of retro- and scenario-modeling to assess effects of 100+ years river of engineering and land-cover change on Middle and Lower Mississippi River flood stages

Cited by 69 publications

References 22 publications

Stakeholder-led science: engaging resource managers to identify science needs for long-term management of floodplain conservation lands

Stakeholder-led science: engaging resource managers to identify science needs for long-term management of floodplain conservation lands

Developing a shared understanding of the Upper Mississippi River: the foundation of an ecological resilience assessment

Uncertainty in levee heights and its effect on the spatial pattern of flood hazard in a floodplain

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