Inundation model as an aid for predicting ecological succession on newly-created deltaic land associated with Mississippi River diversions: Application to the wax lake delta

E. Viparelli, J. Shaw, A. Bevington, E. Meselhe, G. O. Holm, D. Mohrig, R. Twilley, G. Parker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A numerical model to predict ecological succession in deltaic environments has been developed in the context of the NCED (National Center for Earth-surface Dynamics) multidisciplinary effort on coastal restoration in Louisiana, where a considerable amount of land loss has been recorded in the last decades. The previous modeling effort of the NCED group resulted in a "land-building model," i.e. a model of delta morphodynamics that has been applied to simulate the effects of few "big" controlled diversions of the Mississippi River at engineering time scales. Along much of the Louisiana coast, the habitat is mainly controlled by two parameters, the frequency of inundation and the salinity. The inundation model outlined here predicts frequency of inundation by means of a coupling of the overall structure of the land-building model with considerations of the statistics of elevation variation in newly-created land, as well as the interannual variability of flow discharge and sea level. Testing and validation of the inundation model are currently in progress on the Wax Lake Delta, a delta building into the Gulf of Mexico, which has been monitored since its formation in the 1970s. Future refinements to the model will include handling of the effects of 1) salinity variation, 2) vegetation on sediment transport and deposition and 3) the formation and consumption of organic soil.

Original languageEnglish (US)
Title of host publicationWorld Environmental and Water Resources Congress 2011
Subtitle of host publicationBearing Knowledge for Sustainability - Proceedings of the 2011 World Environmental and Water Resources Congress
Pages2340-2349
Number of pages10
DOIs
StatePublished - Jul 21 2011
EventWorld Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability - Palm Springs, CA, United States
Duration: May 22 2011May 26 2011

Publication series

NameWorld Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability - Proceedings of the 2011 World Environmental and Water Resources Congress

Other

OtherWorld Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability
CountryUnited States
CityPalm Springs, CA
Period5/22/115/26/11

Keywords

  • Ecosystems
  • Mississippi River
  • Numerical models

ASJC Scopus subject areas

  • Environmental Science(all)

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    Viparelli, E., Shaw, J., Bevington, A., Meselhe, E., Holm, G. O., Mohrig, D., Twilley, R., & Parker, G. (2011). Inundation model as an aid for predicting ecological succession on newly-created deltaic land associated with Mississippi River diversions: Application to the wax lake delta. In World Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability - Proceedings of the 2011 World Environmental and Water Resources Congress (pp. 2340-2349). (World Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability - Proceedings of the 2011 World Environmental and Water Resources Congress). https://doi.org/10.1061/41173(414)243