Isles Derneries, Gulf Side Transects

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Jamey M. Reid
Publication_Date: 2003
Title: Isles Derneries, Gulf Side Transects
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Woods Hole Field Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <https://pubs.usgs.gov/dds/dds79>
Larger_Work_Citation:
Citation_Information:
Originator: S.J. Williams
Originator: J.M. Reid
Originator: V. Cross
Originator: C. Polloni
Publication_Date: 2003
Title:
Coastal Erosion and Wetland Change in Louisiana: Selected USGS Products
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Digital Data Series
Issue_Identification: DDS-79
Publication_Information:
Publication_Place: Woods Hole Field Center Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <https://pubs.usgs.gov/dds/dds79>
Description:
Abstract:
The U.S. Geological Survey (USGS), in cooperation with the Coastal Research Laboratory in the Department of Geology and Geophysics at the University of New Orleans (UNO) and the Center for Coastal Energy and Environmental Resources at Louisiana State University (LSU), is investigating the processes of coastal erosion and wetland loss in Louisiana (Sallenger and others, 1987; Sallenger and Williams 1989; Penland and others, 1992).

Building on the USGS Louisiana Barrier Island Study (Williams and others, 1992) and the USGS Hurricane Andrew impact assessment (Penland and others, 1998), this data layer depicts the shore-normal transects used to measure shoreline change.

The Isles Dernieres are located about 120 km southwest of New Orleans. This barrier island shoreline is 32 km long and extends from Caillou Bayou east to Wine Island Pass. The Isles Dernieres represent a barrier island arc developed from the reworking and erosion of an abandoned distributary of the Lafourche delta complex within the Mississippi River delta plain (Penland and others, 1988). Previous work by McBride and others (1992) documented a long-term (1887-1988) gulfside erosion rate of -11.1 m/y and a short-term (1978-1988) gulfside erosion rate of -19.2 m/y. The long-term bayside (1906- 1988) erosion rate was measured at -0.6 m/y and the short-term (1978-1988) bayside erosion rate was measured at -5.2 m/y. The Isles Dernieres decreased in area at a rate of -28.2 ha/y between 1887 and 1988, suggesting the long-term date of disappearance would be 2015. The rate of area loss between 1978 and 1988 was measured at -42.7 ha/y suggesting a short-term disappearance date of 2004. In the 1992 Hurricane Andrew impact assessment by Penland and others (1998), the Isles Dernieres experienced a brief and intense period of increased erosion. The average gulfside erosion rate accelerated to -59.37 m/y and the average bayside erosion rate accelerated to -10.8 m/y during the year of the 1992 Hurricane Andrew impact. The Isles Dernieres rate of area change accelerated to -155.7 ha/y during the 1992 hurricane season. Hurricane Andrew accelerated the long-term area loss rate to -28.5 ha/y and the shortterm area loss rate to -49.54 ha/y. The Hurricane Andrew impact on the Isles Dernieres produced 3-5 years of erosion in a matter of days. After the Hurricane Andrew impact, the projected long-term disappearance date of the Isles Dernieres was reduced from 2015 to 2012 and the short term disappearance date was reduced from 2004 to 2003.

In this shoreline change update, the authors used the methods and transects used by McBride and others (1992) to insure data compatibility of the new measurements and analysis.

To evaluate change in the shoreline position, shore-normal transects were constructed at approximately 15-second intervals of longitude or latitude depending on shoreline orientation. Isles Dernieres, Bayou Lafourche and Plaquemines barrier systems (east-west shroelines) were analyzed using 15-second (about 404 m) intervals of longitude, while the Chandeleur Islands (north-south shorelines) were examined by using 15-second (about 462 m) intervals of latitude. Measurements of shoreline movement and change in island width were taken along transects perpendicular to the composite shoreline trend. Average rates of movement and area change were calculated by dividing absolute measurements by elapsed time (year, month, and day - where available.) Shoreline change maps were procuded to determine the spatial and temporal distribution of shoreline movement (magnitude, direction, and rate of change) and document geomorphologic evolution. (McBride and others, 1992).

Purpose:
To release data that was originally intended to be published in a paper atlas in a digital format.

To up-date the shoreline change analysis by McBride and others (1992) and Penland and others (1998) for the Isles Dernieres to 1996.

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1996
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -90.963439
East_Bounding_Coordinate: -90.581319
North_Bounding_Coordinate: 29.099566
South_Bounding_Coordinate: 29.023309
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Field Center
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Geographic Information System
Theme_Keyword: GIS
Theme_Keyword: University of New Orleans
Theme_Keyword: Louisiana State University
Theme_Keyword: barrier island
Theme_Keyword: aerial mapping
Theme_Keyword: aerial mapping photography
Theme_Keyword: coastal erosion
Theme_Keyword: coastal erosion processes
Theme_Keyword: shoreline change
Theme_Keyword: transects
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: Louisiana
Place_Keyword: Gulf of Mexico
Place_Keyword: Isles Derneries
Place_Keyword: Terrebonne Parish
Place_Keyword: United States
Place_Keyword: North America
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: University of New Orleans
Contact_Person: Paul Connor, Jr
Contact_Address:
Address_Type: mailing and physical address
Address:
Dept. of Geology & Geophysics, Pontchartrain Institute, CRM Bldg. Room 343
Address: 2045 Lakeshore Drive
City: New Orleans
State_or_Province: LA
Postal_Code: 70148
Country: USA
Contact_Voice_Telephone: (504) 280-1030
Contact_Facsimile_Telephone: (504) 280-4022
Contact_Electronic_Mail_Address: pfconnor@crl.uno.edu
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.2.0.700
Cross_Reference:
Citation_Information:
Originator: R.A. McBride
Originator: S. Penland
Originator: M. Hiland
Originator: S.J. Williams
Originator: K.A. Westphal
Originator: B. Jaffe
Originator: A.H. Sallenger, Jr.
Publication_Date: 1992
Title:
Louisiana barrier shoreline change analysis- 1853 to 1989: methodology, database, and results
Edition: 1.0
Geospatial_Data_Presentation_Form: atlas
Larger_Work_Citation:
Citation_Information:
Originator: S.J. Williams (editor)
Originator: S. Penland (editor)
Originator: A.H. Sallenger (editor)
Title: Atlas of Shoreline Changes in Louisiana from 1853 to 1989
Edition: 1.0
Geospatial_Data_Presentation_Form: atlas
Publication_Information:
Publication_Place: U.S. Geological Survey
Publisher: Reston, VA

Data_Quality_Information:
Lineage:
Process_Step:
Process_Description:
The projection was defined as UTM and converted to Geographic NAD 83.
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Jamey M. Reid
Contact_Position: IT Specialist (Data Management)
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Field Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 025453-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x 2204
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jreid@usgs.gov
Process_Step:
Process_Description: Metadata was created for the new shapefile.
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Jamey M. Reid
Contact_Position: IT Specialist (Data Management)
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Field Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 025453-1598
Country: USA
Contact_Voice_Telephone: (508) 457-2204
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jreid@usgs.gov

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 91

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: id_trans_gulf
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: ENTITY
Attribute:
Attribute_Label: LAYER
Attribute:
Attribute_Label: LEVEL
Attribute:
Attribute_Label: ELEVATION
Attribute:
Attribute_Label: COLOR
Attribute:
Attribute_Label: TRANSECT_N

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: S. Jeffress Williams
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Field Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: (508) 457-2383
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jwilliams@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, express or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 0.035

Metadata_Reference_Information:
Metadata_Date: 20030725
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Jamey M. Reid
Contact_Position: IT Specialist (Data Management)
Contact_Address:
Address_Type: mailing and physical address
Address: Woods Hole Field Center
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 025453-1598
Country: USA
Contact_Voice_Telephone: (508) 548-8700 x 2204
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: jreid@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.7.3 on Wed Aug 06 09:23:20 2003