Brown Marsh Scanned Aerial Photography

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

U.S. Geological Survey, Biological Resources Division National Wetlands Research Center

Publication_Date: 20001100

Title: Brown Marsh Scanned Aerial Photography

Geospatial_Data_Presentation_Form: Raster Digital Data

Description:

Abstract:

This data set consist of approximately 800 scanned 9x9 inch color infrared aerial photography frames. The photography covers the extent of the "brown marsh" dieoff of coastal Louisiana, roughly the area from the Sabine River to the Mouth of the Mississippi Delta. The most prominent areas being affected are the salt marshes between the Mississippi and Atchafalaya Rivers.

Purpose:

To identify and monitor the brown marsh dieoffs in coastal Louisiana.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20000927

Ending_Date: 20001115

Currentness_Reference: Observed

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -93.7983487

East_Bounding_Coordinate: -89.3162722

North_Bounding_Coordinate: 29.9786305

South_Bounding_Coordinate: 28.9513954

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Brown marsh

Theme_Keyword: Aerial photography

Theme_Keyword: Scanned

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Louisiana

Place_Keyword: Coastal Louisiana

Place_Keyword: Gulf of Mexico

Temporal:

Temporal_Keyword_Thesaurus: None

Temporal_Keyword: 2000

Access_Constraints:

Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the NWRC Standard Disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and NWRC interests. See section 6.3 Distribution Liability.

Use_Constraints:

Acknowledgment of the National Wetlands Research Center as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected by users of this data. Sharing new data layers developed directly from these data would also be appreciated by NWRC staff. Users should be aware of that comparisons with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in photo interpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, Biological Resource Division's, National Wetlands Research Center

Contact_Person: William Jones

Contact_Position: Geographer

Contact_Address:

Address_Type: Mailing and Physical Address

Address: 700 Cajundome Blvd

City: Lafayette

State_or_Province: Louisiana

Postal_Code: 70506

Contact_Voice_Telephone: 337-266-8581

Contact_Facsimile_Telephone: 337-266-8616

Contact_Electronic_Mail_Address: william_jones@usgs.gov

Native_Data_Set_Environment:

ESPON Expression 1640XL Scanner using Adobe Photoshop version 4.0.1 and SilverFast Ai version 5.1.1 on a NT operating platform.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The data set is raster in nature and does not contain a defined set of attributes.

Logical_Consistency_Report:

Within the scanning procedure, a histogram stretch was performed on each frame of photography to maximize color variation. This results in a higher contrast image.

Completeness_Report:

Frames to be scanned were selected according to the overlap. Every other frame was used to achieve at least 20% overlap.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Not applicable

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: Not applicable

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Aerodata Corporation

Publication_Date: 200011

Title: CIR and Natural Color Aerial Photography

Geospatial_Data_Presentation_Form: Remote-sensing image

Publication_Information:

Publication_Place: Baton Rouge, Louisiana

Publisher: Aerodata Corporation

Source_Scale_Denominator: 24000

Type_of_Source_Media: Stable-based material

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20000927

Ending_Date: 20001115

Source_Currentness_Reference: Photo date

Source_Citation_Abbreviation: CIR

Source_Contribution: Primary source for scanned aerial photography

Process_Step:

Process_Description:

Seven rolls of photography were indexed on 1:100,000 USGS Quadrangle maps and stored within the USGS NWRC Archives. All duplicate transparencies were labeled with roll and frame number and date of acquisition. Selected frames were scanned at 300 dpi and converted into both JPEG and TIFF format.

Process_Date: 20001100

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: Coastal Louisiana

Direct_Spatial_Reference_Method: Raster

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

The data set does not have a defined set of attributes or values. The data are raster in nature, and each pixel is represented by a color. Colors have not been assigned a specific value.

Entity_and_Attribute_Detail_Citation: No citation

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, National Wetlands Research Center

Contact_Person: Scott Wilson

Contact_Position: Electrical Engineer

Contact_Address:

Address_Type: Physical and Mailing Address

Address: 700 Cajundome Blvd

City: Lafayette

State_or_Province: LA

Postal_Code: 70506

Country: USA

Contact_Voice_Telephone: 337-266-8644

Contact_Facsimile_Telephone: 337-266-8513

Contact_Electronic_Mail_Address: scott_wilson@usgs.gov

Hours_of_Service: 8:00 am to 4:00 pm CST, Monday thru Friday

Resource_Description: Scanned aerial photography for brown marsh die off

Distribution_Liability:

Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data or any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. So, these data are provided "as is" and without any express or implied warranties, including without limitations, the implied warranties of merchantability and fitness for a particular purpose. Also, use of trade names or commerical products in this metadata is soley for the purpose of providing specific information, and does not imply recommendation or endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: TIFF and JPEG

Format_Version_Number: Varies

File_Decompression_Technique: None

Transfer_Size: For JPEG, 630KB to 6.88MB. For TIFF, 22MB

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://www.lacoast.gov>

Fees: None, if available on line

Custom_Order_Process: None

Metadata_Reference_Information:

Metadata_Date: 20001130

Metadata_Review_Date: 20001201

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Helena Schaefer

Contact_Organization: U.S. Geological Survey National Wetlands Research Center

Contact_Position: Geographer

Contact_Address:

Address_Type: Physical and Mailing Address

Address: 700 Cajundome Blvd

City: Lafayette

State_or_Province: LA

Postal_Code: 70506

Country: USA

Contact_Voice_Telephone: 337-266-8696

Contact_Facsimile_Telephone: 337-266-8616

Contact_Electronic_Mail_Address: helena_schaefer@usgs.gov

Hours_of_Service: 8:00 am to 4:00 pm CST, Monday thru Friday

Metadata_Standard_Name:

Draft Content Standard for National Biological Information Infrastructure Metadata, National Biological Service

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None