Aerial Survey Maps from Brown Marsh Survey of Coastal Louisiana

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator:
U.S Geological Survey, Biological Resources Division's National Wetlands Research Center
Publication_Date: 2003
Title: Aerial Survey Maps from Brown Marsh Survey of Coastal Louisiana
Geospatial_Data_Presentation_Form: Raster Digital database
Larger_Work_Citation:
Citation_Information:
Originator:
Barataria-Terrebonne National Estuary Program Scientific-Technical Committee
Publication_Date: 20010207
Title:
Requests for submission of Scope of Services for Marsh Dieback and Nutria Control Emergency Response.
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: Thibodaux, LA
Publisher:
Barataria-Terrebonne National Estuary Program Scientific-Technical Committee
Online_Linkage: <http://www.brownmarsh.net/reports/brown_marsh_rfp.pdf>
Description:
Abstract:
This data set consists of maps depicting the monthly aerial surveys conducted by the National Wetlands Research Center. The surveys were done, using a USGS/NWRC fix-winged amphibious aircraft, in Southeast Louisiana in June, August, September, October and November 2000 and January and February 2001. Each transect was visited on each flight over. A general color (Brown, Brown-Green, Green-Brown, Green) was assigned to the area of marsh directly beneath the wing at 5 second intervals. As color was assigned, the health designation and latitude and longitude of the area was recorded into Voice/GPS Survey, a voice transcription software created by the U.S. Fish and Wildlife Service, on a laptop with a link to a Trimble 2000 GPS unit.
Purpose:
To determine the extent of the Brown Marsh phenomenon of Coastal Louisiana
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 200006
Ending_Date: 200208
Currentness_Reference: Ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: Monthly
Spatial_Domain:
Description_of_Geographic_Extent: Coastal Louisiana
Bounding_Coordinates:
West_Bounding_Coordinate: -93.899
East_Bounding_Coordinate: -89.524
North_Bounding_Coordinate: 29.917
South_Bounding_Coordinate: 29.212
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Brown Marsh
Theme_Keyword: Aerial survey
Theme_Keyword: coastal vegetation
Theme_Keyword: dieback
Theme_Keyword: transects
Theme_Keyword: GIS
Theme_Keyword: geographic information system
Theme_Keyword: vegetation health
Theme_Keyword: GPS
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Coastal Louisiana
Place_Keyword: Louisiana
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2000
Temporal_Keyword: 2001
Temporal_Keyword: 2002
Temporal_Keyword: monthly
Access_Constraints:
Data generated by the Brown Marsh principal investigators will be available only to the project’s other principal investigators, following the established QA/QC review, for a period of two years. After two years from the finalization of the data, it shall be made available to the public. Please contact the principal investigator for exact date of availability. It is strongly recommended that these data be directly acquired from the Brown Marsh Database Information Management System server and not indirectly through other sources which may have changed the data in some way.
Use_Constraints:
Acknowledgement of the principal investigator as a data source would be appreciated in products developed from these data, and such acknowledgement as is standard for citation and legal practices for data source is expected by users of these data. Users should be aware that comparison with other data sets for the same area from other time periods may be inaccurate due to inconsistencies resulting from changes in mapping conventions, methodologies, data collections and computer processes over time. The principal investigator and the distributor shall not be liable for improper or incorrect use of these data, based on the description of appropriate/inappropriate uses described in this metadata document. The principal investigator and distributor make no claims as to the data’s suitability for other purposes. 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: Tommy Michot
Contact_Position: Wildlife Biologist
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 700 Cajundome Blvd
City: Lafayette
State_or_Province: Louisiana
Postal_Code: 70506
Contact_Voice_Telephone: 337-266-8664
Contact_Facsimile_Telephone: 337-266-8592
Contact_Electronic_Mail_Address: tommy_michot@usgs.gov
Native_Data_Set_Environment:
ArcView 3+ on a NT Operating platform - Voice/GPS Survey, Trimble 2000 GPS.

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The surveys were conducted through aerial observations by the pilot/wildlife biologist and another scientific observer on their respective sides of the aircraft. The health values assigned a given area are reflective of the observers. A more formal on-ground assessment would be needed to determine accuracy of attributes.
Logical_Consistency_Report:
Flight line transects were predetermined before flight. Each and every subsequent flight was flown according to these transects. Observations from both sides of the aircraft were taken every five second along these transects. GPS readings were automatically recorded with each observation.
Completeness_Report:
No known omissions. Due to weather or other unforeseen circumstances, flights may not be done monthly.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey, National Wetlands Research Center
Publication_Date: 2000
Title: GPS coordinates with marsh values
Edition: Varies
Geospatial_Data_Presentation_Form: Digtial database file
Publication_Information:
Publication_Place: Lafayette, LA
Publisher: USGS National Wetlands Research Center
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 200006
Ending_Date: 200208
Source_Currentness_Reference: Ground Condition
Source_Citation_Abbreviation: GPS
Source_Contribution: Primary source of locations along the flight line transects
Source_Information:
Source_Citation:
Citation_Information:
Originator: Louisiana Oil Spill Coordinator's Office (LOSCO)
Publication_Date: 1999
Title: Thematic Mapper Image of Louisiana, UTM15 NAD83, LOSCO
Geospatial_Data_Presentation_Form: Raster digital data
Publication_Information:
Publication_Place: Baton Rouge, LA
Publisher: Louisiana State University
Type_of_Source_Media: Raster digital database
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1999
Source_Currentness_Reference: Observed
Source_Citation_Abbreviation: LOSCO TM
Source_Contribution: Secondary source for maps, base maps.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Louisiana Oil Spill Coordinator's Office (LOSCO)
Publication_Date: 1999
Title: Parish Boundaries of Louisiana from LDOTD source data
Geospatial_Data_Presentation_Form: Vector digital data
Publication_Information:
Publication_Place: Baton Rouge, LA
Publisher: Louisiana State University
Type_of_Source_Media: Digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1999
Source_Currentness_Reference: Date of source material
Source_Citation_Abbreviation: LOSCO Parish
Source_Contribution: Secondary data source for aerial survey maps

Process_Step:
Process_Description:
GPS coordinates and data collected through aerial surveys were placed into a GIS database. These points were layered on secondary data sources (parishes boundaries and TM imagery) and color coded to indicate marsh health. This information was then placed into a standard map layout, using ArcView. A map was generated for each monthly flight.
Process_Date: 2000-2002
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 15
Transverse_Mercator:
Longitude_of_Central_Meridian: -93
Latitude_of_Projection_Origin: 0
False_Easting: 500,000
False_Northing: 0
Scale_Factor_at_Central_Meridian: .9996
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: .61
Ordinate_Resolution: .61
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Aerial Survey
Entity_Type_Definition: Data taken from aerial survey of the coastal marsh die-back.
Entity_Type_Definition_Source: Project defined
Attribute:
Attribute_Label: Data
Attribute_Definition: Attribute information
Attribute_Definition_Source: Project defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Brown
Enumerated_Domain_Value_Definition: The percentage of marsh color to determine health designation
Enumerated_Domain_Value_Definition_Source: Project defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Brown-Green
Enumerated_Domain_Value_Definition: The percentage of marsh color to determine health designation
Enumerated_Domain_Value_Definition_Source: Project defined Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Green-Brown
Enumerated_Domain_Value_Definition: The percentage of marsh color to determine health designation
Enumerated_Domain_Value_Definition_Source: Project defined Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Green
Enumerated_Domain_Value_Definition: The percentage of marsh color to determine health designation
Enumerated_Domain_Value_Definition_Source: Project defined
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: Mailing and Physical
Address: 700 Cajundome Blvd
City: Lafayette
State_or_Province: LA
Postal_Code: 70506
Country: USA
Contact_Voice_Telephone: 337-226-8644
Contact_Facsimile_Telephone: 337-266-8616
Contact_Electronic_Mail_Address: scott_wilson@usgs.gov
Hours_of_Service: 8:00 am to 4:00 pm CST, Monday thru Friday
Resource_Description: Brown Marsh Aerial Survey Maps
Distribution_Liability:
Although these data have been processed successfully on a computer system at the designated principal investigator’s facility, no warranty expressed or implied is made regarding the accuracy or utility of the data on 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 the official Brown Marsh Database Information Management System server or from the principal investigator, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be given to the contents of the metadata file associated with these data. The Brown Marsh committee 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. Also, use of trade names or commercial products in the metadata file is solely for the purpose of providing specific information, and does not imply recommendation or endorsement. Any downloading and use of these data signifies a user’s agreement to comprehension and compliance of the disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and principal investigators interests.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: JPEG
Format_Version_Number: Unknown
File_Decompression_Technique: JPEG
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://www.brownmarsh.net>
Fees: None, if available on-line
Custom_Order_Process: None
Metadata_Reference_Information:
Metadata_Date: 20010530
Metadata_Review_Date: 20010925
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: R. Scott Kemmerer
Contact_Organization: U.S. Geological Survey/NWRC-JWCS
Contact_Position: Biologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 700 Cajundome Blvd
City: Lafayette
State_or_Province: LA
Postal_Code: 70506
Country: USA
Contact_Voice_Telephone: 337-266-8669
Contact_Facsimile_Telephone: 337-266-8592
Contact_Electronic_Mail_Address: scott_kemmerer@usgs.gov
Hours_of_Service: 8:00 am to 4:00 pm CST, Monday thru Friday
Metadata_Access_Constraints: None
Metadata_Use_Constraints:
Acknowledgement of the National Wetlands Research Center as the metadata source would be appreciated. Please cite the original metadata when using portions to create another record for slightly altered data, such as reprojection.
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Extensions:
Profile_Name:
Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Online_Linkage: <http://www.fgdc.gov/standards/status/sub5_2.html>
Generated by mp version 2.7.33 on Thu Apr 03 14:23:47 2003