time series for the east end of raccoon island of the isles dernieres 1984 - 2007 aerial video...

Time Series forthe east end ofRaccoon Island

of the Isles Dernieres1984 - 2007

Time Series forthe east end ofRaccoon Island

of the Isles Dernieres1984 - 2007

Aerial Video Survey ProgramPontchartrain Institute of Environmental Sciences

University of New Orleans

Karen A Westphal

The Aerial Video Survey Program has been acquiring photography and video of the northern Gulf of Mexico shoreline since 1984.

Oblique aerial photography does not produce exact matches due to variations in altitude, camera angle and distance from the shore (and different photographers). Photos that matched well were scaled and aligned to illustrate the landscape changes that have taken place between time periods.

Occasionally a pointer or symbol was added to assist with the visual comparison.

The Aerial Video Survey Program has been acquiring photography and video of the northern Gulf of Mexico shoreline since 1984.

Oblique aerial photography does not produce exact matches due to variations in altitude, camera angle and distance from the shore (and different photographers). Photos that matched well were scaled and aligned to illustrate the landscape changes that have taken place between time periods.

Occasionally a pointer or symbol was added to assist with the visual comparison.

Location of Raccoon Island, LouisianaLocation of Raccoon Island, Louisiana

The east end of Raccoon Island is in BICM region “Teche Delta” and BICM segment 33 “Raccoon Island”

1985 - post-Hurricane Juan1985 - post-Hurricane Juan

29º02’49”W - 90º54’51”N View to the west

19861986


19871987


19881988


19911991


1992 pre-Hurricane Andrew1992 pre-Hurricane Andrew


1992 post-Hurricane Andrew1992 post-Hurricane Andrew


19931993


1994 post FEMA restoration1994 post FEMA restoration


19961996


1999 - 2yrs post breakwater1999 - 2yrs post breakwater


20012001


2002 post-Hurricane Lili2002 post-Hurricane Lili


2004 post-Hurricane Ivan2004 post-Hurricane Ivan


2005 post-Hurricane Katrina/Rita2005 post-Hurricane Katrina/Rita


2007 - February

post CWPPRA TE-48breakwater installation

2007 - February

post CWPPRA TE-48breakwater installation

29º02’49”W - 90º54’33”N View to the west (~303º)

2007 - April2007 - April

29º02’45”W - 90º54’36”N View to the northwest (~310º)

11 Years11 Years

1996

1985

3 Yearspost

breakwaters

3 Yearspost

breakwaters

1999 -2 yrs post TE-29

1996 -1yr pre TE-29

11 Years11 Years

1996

2007

1996

2007

22 Years22 Years

1985

2007

1985

2007

Relevant Coastal Restoration ProjectsRelevant Coastal Restoration Projects Raccoon Island Repair. State Project Number: RI

Project Priority List (PPL): N/AProject Type: Beneficial Use of Dredged MaterialConstruction Completion Date 1994Description: This project was a cooperative effort that utilized dredged material and vegetation to repair Raccoon Island from storm damage. Cooperators include the Louisiana Department of Natural Resources (LDNR)/ Coastal Restoration Division (CRD), Louisiana Department of Wildlife and Fisheries (LDWF)/Fur and Refuge Division, Terrebonne Parish Consolidated Government (TPCG), South Terrebonne Tidewater Management and Conservation District, T. Baker Smith & Son, Inc., Coastal Engineering & Environmental Consultants, Inc., and Bean Dredging. Federal grant money was also utilized for this project by LDWF and TPCG.

Raccoon Island Breakwaters Demonstration. State Project Number TE-29Project Priority List (PPL): 05Federal Sponsor: Natural Resources Conservation Service (NRCS)Project Type: Barrier IslandConstruction Completion Date 1997Description: This demonstration project's goal is to reduce shoreline erosion and increase land coverage. Eight segmented breakwaters were constructed along the eastern end of the island to reduce the rate of shoreline retreat, promote sediment deposition along the beach, and protect seabird habitat. Project effectiveness was determined by monitoring changes in the shoreline, wave energy, and elevations along the beach, and by surveys of the gulf floor between the shoreline and the breakwaters.

Raccoon Island Shoreline Protection/Marsh Creation. State Project Number TE-48Project Priority List (PPL): 11Federal Sponsor: Natural Resources Conservation Service (NRCS)Project Types: Shoreline Protection, Marsh CreationConstruction Completion Date PendingDescription: The goal of this project is to protect the Raccoon Island rookery and seabird colonies from an encroaching shoreline by reducing the rate of erosion along the western end of the island and creating more land along the northern shoreline. This goal will be accomplished through the construction of eight additional segmented breakwaters and a terminal groin along the gulf side of the island, adjacent to the Raccoon Island Breakwaters Demonstration (TE-29) project. In addition, dredged material will be used to create marsh on the bay side of the island.

http://dnr.louisiana.gov/crm/coastres/projectlist.asp

Raccoon Island Repair. State Project Number: RIProject Priority List (PPL): N/AProject Type: Beneficial Use of Dredged MaterialConstruction Completion Date 1994Description: This project was a cooperative effort that utilized dredged material and vegetation to repair Raccoon Island from storm damage. Cooperators include the Louisiana Department of Natural Resources (LDNR)/ Coastal Restoration Division (CRD), Louisiana Department of Wildlife and Fisheries (LDWF)/Fur and Refuge Division, Terrebonne Parish Consolidated Government (TPCG), South Terrebonne Tidewater Management and Conservation District, T. Baker Smith & Son, Inc., Coastal Engineering & Environmental Consultants, Inc., and Bean Dredging. Federal grant money was also utilized for this project by LDWF and TPCG.

Raccoon Island Breakwaters Demonstration. State Project Number TE-29Project Priority List (PPL): 05Federal Sponsor: Natural Resources Conservation Service (NRCS)Project Type: Barrier IslandConstruction Completion Date 1997Description: This demonstration project's goal is to reduce shoreline erosion and increase land coverage. Eight segmented breakwaters were constructed along the eastern end of the island to reduce the rate of shoreline retreat, promote sediment deposition along the beach, and protect seabird habitat. Project effectiveness was determined by monitoring changes in the shoreline, wave energy, and elevations along the beach, and by surveys of the gulf floor between the shoreline and the breakwaters.

Raccoon Island Shoreline Protection/Marsh Creation. State Project Number TE-48Project Priority List (PPL): 11Federal Sponsor: Natural Resources Conservation Service (NRCS)Project Types: Shoreline Protection, Marsh CreationConstruction Completion Date PendingDescription: The goal of this project is to protect the Raccoon Island rookery and seabird colonies from an encroaching shoreline by reducing the rate of erosion along the western end of the island and creating more land along the northern shoreline. This goal will be accomplished through the construction of eight additional segmented breakwaters and a terminal groin along the gulf side of the island, adjacent to the Raccoon Island Breakwaters Demonstration (TE-29) project. In addition, dredged material will be used to create marsh on the bay side of the island.

http://dnr.louisiana.gov/crm/coastres/projectlist.asp

time series for the east end of raccoon island of the isles dernieres 1984 - 2007 aerial video...

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