Brenda Leroux Babin. Two significant events in Louisiana Mississippi River Diversion Hurricanes (2005 and 2008) Ecological impacts Change in salinity.

Brenda Leroux Babin

Two significant events in LouisianaMississippi River Diversion Hurricanes (2005 and 2008)

Ecological impacts Change in salinity regimeNutrient inputs and eutrophication

Data collected during these events help scientists to understand these impacts

(White et al 2009)

R--RigoletsCM--Chef Menteur PassIC--Industrial CanalCW--Causeway

Upstream 19km west of New Orleans Has been opened 9 times 4/11-5/8/08 ~7.96 km2 Peak flow 4783 m3 s-1

13.5 % of Mississippi River and nitrate load at peak opening

(White et al 2009

April 29, 2008

(White et al 2009)

April 11—Opened April 30—Began Closing May 8—Closed May 30—Did not seem to be any signal

of chemical input from river

(White et al 2008)

April 11—OpenedApril 30—Began ClosingMay 8—ClosedMay 30—Did not seem to be any signal of chemical input from river

April 11—Opened April 30—Began Closing May 8—Closed May 30—Did not seem to be any signal

of chemical input from river

Gustav Ike Gustav Ike

Brenda Leroux [email protected]