The Mississippi River diversions are intended to build new land by diverting floodwaters from the river into open water, wetlands there. Since oyster cultivation depends on the oyster beds seeing a narrow salinity range, there is a concern that the diversion…
Tag: Mississippi River
OHIO RIVER BASIN– Formulating Climate Change Mitigation/Adaptation Strategies through Regional Collaboration with the ORB Alliance
Generally, modeling results indicate a gradual increase in annual mean temperatures between 2011 and 2040 amounting to one-half degree per decade, with greater increases between 2041 and 2099 of one full degree per decade. Hydrologic flow changes show substantial variability…
Mississippi River Flood History
The record of Mississippi River floods goes back to the earliest explorers: High Flows and Flood History on the Lower Mississippi River Below Red River Landing, LA (1543 – Present) and the paleoclimate records show megafloods greatly exceeding even the 1927 flood: Brown,…
Subsidence on the Louisiana Coast
Also see: Faulting on the Louisiana Coast, Subsidence, Faults Subsidence – General
Corps of Engineers systematically underestimates river flood risk
Robert E Criss, Statistics of evolving populations and their relevance to flood risk, Journal of Earth Science 1–7 (2016). ABSTRACT: Statistical methods are commonly used to evaluate natural populations and environmental variables, yet these must recognize temporal trends in population…
Video – Faults and the Mississippi Delta — Rethinking Coastal Restoration
Also see: Faults Faults and the Mississippi Delta — Rethinking Coastal Restoration This is a 80 minute video of a presentation on the geology of the Mississippi Delta that was presented in a class at the LSU Law School. The speaker…
Faulting and Tectonic Subsidence on the Louisiana Coast – Goose Point
Also see: Faults Haggar, K. S., 2014, Coastal land loss and landscape level plant community succession: An expected result of natural tectonic subsidence, fault movement, and sea level rise: Gulf Coast Association of Geological Societies Transactions, v. 64, p. 139–159. Coastal…
An Introduction to the Environmental Literature of the Mississippi Deltaic Plain Region
An Introduction to the Environmental Literature of the Mississippi Deltaic Plain Region This report is a review of selected environmental literature of the Mississippi Deltaic Plain Region . This review introduces some of the major ecosystem components and processes, describes…
Geological investigation of the alluvial valley of the lower Mississippi River
While some of the conclusions of this report are dated, the beautiful maps of the evolution of the river are the best illustration of the dynamic nature of river deltas. The maps are known as meander maps. Fisk, H.N., 1944,…
Watch the River Rise!
This is a WWW cam watching the construction site of a casino just south of downtown Baton Rouge:
Go back to April 20 to see the river close to normal. Earlier in April the water was high again.
Projected Lower Mississippi Flood Crests
These estimates came out 16 May 2011, and are based on partial opening of the Morganza floodway.
Inundation Maps – Flood of 2011 on the Lower Mississippi
Lower Mississippi water flows and inundation map – May 11, 2011
Playing Politics with Morganza?
Took a drive up to the Old River Control Structure and the Morganza Spillway on the 12th of May. I was curious about what is keeping the Corps from opening the spillway until the flow hits 1.5 M CFS. One…
Mississippi River Flood of 2011
At least as to river heights, the Flood of 2011 may be second or third largest Mississippi River Flood in modern times. Total volume of the flood is hard to compare because the river and the tributaries are more constrained than in the past. Water in a leveed river will be much higher than in a river without levees where it can spread out horizontally.
Projected flood heights – NOAA (Morganza floodway projections)[…]
The Control of Nature – Morganza Spillway
John McPhee has written a fascinating history of the River Control Structure at Morganza. While it is not clear that the Mississippi still wants to go down the Atchafalaya, losing the River Control Structure in a flood would still be a…