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Time Series for Central West Grand Terre Island of the Lafourche Shoreline 1984 - 2007 Aerial Video Survey Program Pontchartrain Institute of Environmental.

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Presentation on theme: "Time Series for Central West Grand Terre Island of the Lafourche Shoreline 1984 - 2007 Aerial Video Survey Program Pontchartrain Institute of Environmental."— Presentation transcript:

1 Time Series for Central West Grand Terre Island of the Lafourche Shoreline Aerial Video Survey Program Pontchartrain Institute of Environmental Sciences University of New Orleans Karen A Westphal

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

3 Location of Grand Terre Island, Louisiana West Grand Terre Island is in BICM region “Lafourche Delta” and BICM segment 45 “Grand Terre Island”

4 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north All photos registered to this point July 9, 1984

5 1988 post-Hurricane Gilbert 29 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north October 12, 1988

6 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north June 25, 1990

7 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north July 9, 1992

8 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north June 16, 1993

9 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north July 26, 1994

10 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north July 17, 1996

11 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north August 27, 1999

12 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north June 14, 2001

13 2002 post-Tropical Storm Isodore 29 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north October 1, 2002

14 2002 post-Hurricane Lili 29 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north October 5, 2002

15 2004 pre-Hurricane Ivan 29 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north September 13, 2004

16 2004 post-Hurricane Ivan 29 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north September 18, 2004

17 2005 post-Hurricane Rita 29 º 17 ’ 02"/89 º 54 ’ 04 ” - View to north September 30, 2005

18 February º 17 ’ 02"/89 º 54 ’ 04 ” - View to north February 26, 2007

19 April º 17 ’ 02"/89 º 54 ’ 04 ” - View to north April 20, 2007

20 10 Years 

21 13 Years

22 23 Years

23 Relevant Coastal Restoration Projects  Vegetative Plantings of a Dredged Material Disposal Site on Grand Terre Island. State Project Number: BA-28 Project Priority List (PPL): 07 Federal Sponsor: National Marine Fisheries Service (NMFS) Project Type: Vegetation Planting Construction Completion Date: 2001 Description: The goal of this project is to stabilize dredged material sites on West Grand Terre Island. This objective was achieved through vegetation plantings and by purchasing grazing rights on the island for the life of the project (20 years).  East/West Grand Terre Islands Restoration. State Project Number: BA-30 Project Priority List (PPL): 09 Federal Sponsor: National Marine Fisheries Service (NMFS) Project Types: Barrier Island, Marsh Creation Construction Completion Date: Pending Description: The goal of this project is to stabilize and benefit 1,575 acres of barrier island habitat and extend the island's life expectancy. Dredged material will be used to create dune and marsh habitat on East Grand Terre Island.  Vegetative Plantings of a Dredged Material Disposal Site on Grand Terre Island. State Project Number: BA-28 Project Priority List (PPL): 07 Federal Sponsor: National Marine Fisheries Service (NMFS) Project Type: Vegetation Planting Construction Completion Date: 2001 Description: The goal of this project is to stabilize dredged material sites on West Grand Terre Island. This objective was achieved through vegetation plantings and by purchasing grazing rights on the island for the life of the project (20 years).  East/West Grand Terre Islands Restoration. State Project Number: BA-30 Project Priority List (PPL): 09 Federal Sponsor: National Marine Fisheries Service (NMFS) Project Types: Barrier Island, Marsh Creation Construction Completion Date: Pending Description: The goal of this project is to stabilize and benefit 1,575 acres of barrier island habitat and extend the island's life expectancy. Dredged material will be used to create dune and marsh habitat on East Grand Terre Island.


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