A June report by the American Society of Civil Engineers indicated that two-thirds of the flooding was caused by the multiple failures of the city's floodwalls. According to the National Hurricane Center, 1, fatalities can be attributed to the storm: The hurricane left an estimated three million people without electricity.
In the two and a half weeks that had passed since Hurricane Katrina flooded the city, pumps had been working nonstop to return the water to Lake Pontchartrain. As portable pumps were brought in to supplement the permanent pumps already hard at work, as much as cubic metersliters or 23, cubic inches of water were being pumped out of New Orleans every second, according to the U.
Army Corps of Engineers. The progress in draining the city is evident when the September 15 image is compared with an image taken one week earlier.
In the lower image, taken by the Landsat 5 satellite on September 7, black flood water covers much of the city. By September 15, the dark flood water had all but disappeared, lingering only in a few sections of the city.
The September 7 image does not show the full extent of the flooding. Taken more than a week after the hurricane struck New Orleans, the image shows a flooded city that had already started to drain.
In a similar but cloudy image taken on August 30, the flood water in St. Bernard Parish, image right, extends almost to the Mississippi River. Flooding in the Aftermath of Hurricane Katrina MISR Images of Katrina Click on image to view full resolution These views of the Louisiana and Mississippi regions were acquired before and one day after Katrina made landfall along the Gulf of Mexico coast, and highlight many of the changes to the rivers and vegetation that occurred between the two views.
Such a display causes water bodies and inundated soil to appear in blue and purple hues, and highly vegetated areas to appear bright green. The scene differentiation is a result of both spectral effects living vegetation is highly reflective at near-infrared wavelengths whereas water is absorbing and of angular effects wet surfaces preferentially forward scatter sunlight.
The two images were processed identically and extend from the regions of Greenville, Mississippi upper left to Mobile Bay, Alabama lower right.
There are numerous rivers along the Mississippi coast that were not apparent in the pre-Katrina image; the most dramatic of these is a new inlet in the Pascagoula River that was not apparent before Katrina. The post-Katrina flooding along the edges of Lake Pontchartrain and the city of New Orleans is also apparent.
In addition, the agricultural lands along the Mississippi floodplain in the upper left exhibit stronger near-infrared brightness before Katrina. Note that clouds appear in a different spot for each view angle due to a parallax effect resulting from their height above the surface.
Each image covers an area of about kilometers by kilometers. The data products were generated from a portion of the imagery acquired during Terra orbits and and utilize data from blocks within World Reference System-2 path Diner and Barbara J. Three-dimensional views of island topography A-Cpost-Katrina oblique aerial photograph D Barrier islands are highly dynamic places that move and change in response to ocean waves and currents.
Over long time scales, barrier islands move slowly landward as sea level rises. Flooded areas are dark greenish brown, while dry areas to the west of the 17th Street Canal and along the banks of the Mississippi River lower half of image are light brown to gray.
This cropped image from the parent frame ISSE is oriented with north to the top. The top image mosaic was acquired in April and Septemberand the bottom image was acquired September 13, The flooded parts of the city appear dark blue, such as the golf course in the northeast corner, where there is standing water.New Orleans remembers Hurricane Katrina 11 years later.
Officials marked the anniversary with wreath-laying ceremonies to remember those who lost their lives to the flooding and celebrations to. Powerful Hurricane Willa makes landfall in Mexico as Category 3 storm. The hurricane is also expected to bring heavy rains to parts of Texas.
The eye of Hurricane Katrina was forecast to pass through the city of New Orleans. In that event, the wind was predicted to come from the north as the storm passed, forcing large volumes of water from Lake Pontchartrain against the levees and possibly into the city.
It was also forecast that the storm surge in Lake Pontchartrain would reach 14–18 feet (– m), with waves reaching 7. Sep 01, · News about Hurricane Katrina.
Commentary and archival information about Hurricane Katrina from The New York Times. Hurricane Katrina (August ) became a large and extremely powerful hurricane that caused enormous destruction and significant loss of life.
It is the costliest hurricane to ever hit the United States, surpassing the record previously held by Hurricane Andrew from In addition, Katrina is one. Please note that the following list is not exhaustive and does not include every notable storm in history. GALVESTON ; ATLANTIC-GULF ; MIAMI ; SAN FELIPE-OKEECHOBEE ; FLORIDA KEYS LABOR DAY ; NEW ENGLAND ; GREAT ATLANTIC ; CAROL AND EDNA ; HAZEL ; CONNIE AND .