Davis Pond Marsh-Vegetative Transect Point Database

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey, Biological Resources Division's National Wetlands Research Center
Publication_Date: 200104
Title: Davis Pond Marsh-Vegetative Transect Point Database
Geospatial_Data_Presentation_Form: Vector Digital data
Description:
Abstract:
This data set consists of vector point information used in the 2000 Davis Pond Vegetative Marsh Type map. The original data set was collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the Davis Pond study area in a Bell 206 Jet Ranger helicopter. Flight was along north/south transects over the area (bounded by Bayou Lafourche on the west, Mississippi River on the east, Highway 90 to the north, and the Gulf of Mexico to the south). Vegetative data were obtained at pre-determined stations. The stations were located using a Trimble Ag 122 Global Positioning system (GPS) and a computer running Dynamo Geographic Information System (GIS) by GeoFocus.
Purpose:
To use a guide for the production of marsh type delineation lines.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2000
Currentness_Reference: Date of source data
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -90.979
East_Bounding_Coordinate: -89.729
North_Bounding_Coordinate: 29.85
South_Bounding_Coordinate: 29.142
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Coastal
Theme_Keyword: Marsh
Theme_Keyword: Vegetation
Theme_Keyword: Delineation
Theme_Keyword: Points
Theme_Keyword: Flight lines
Theme_Keyword: Ecological Characterization
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Louisiana
Place_Keyword: Coastal Louisiana
Place_Keyword: Louisiana Coastal Zone
Place_Keyword: Davis Pond
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2000
Access_Constraints:
It is strongly recommended that this data is directly acquired from the distributor described above or from another USGS Biological Resources Division server and not indirectly through other sources which may have changed the data in some way. The distributor makes no claims as to the data's suitability for other purposes.
Use_Constraints:
Acknowledgement of the U.S. Geological Survey, 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 U.S. Geological Survey, National Wetlands Research Center staff. 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, data collection, and computer processes over time. The distributor shall not be liable for improper or incorrect use of this data, based on the description of appropriate/inappropriate uses described in this metadata document. These data are not legal documents and are not to be used as such.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division
Contact_Person: Greg Linscombe
Contact_Position: Biologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 2415 Darnall Road
City: New Iberia
State_or_Province: LA
Postal_Code: 70506
Country: USA
Contact_Voice_Telephone: 337-373-0032
Contact_Facsimile_Telephone: 337-373-0181
Contact_Electronic_Mail_Address: linscombe_rg@wlf.state.la.us
Data_Set_Credit:
The U.S. Geological Survey, National Wetlands Research Center would like to acknowledge the Louisiana Department of Wildlife and Fisheries for the use of the data derived from the vegetative marsh study conducted by Robert H. Chabreck and Greg Linscombe.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
Cross_Reference:
Citation_Information:
Originator:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey, Biological Resources Division's National Wetlands Research Center
Publication_Date: 200104
Title: Davis Pond Marsh-Vegetative Type Map
Edition: 2000
Publication_Information:
Publication_Place: Lafayette, LA
Publisher:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey, Biological Resources Division's National Wetlands Research Center
Cross_Reference:
Citation_Information:
Originator:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey, Biological Resources Division's National Wetlands Research Center
Publication_Date: 200104
Title: Davis Pond Marsh-Vegetative Type Transect Lines
Edition: 2000
Publication_Information:
Publication_Place: Lafayette, LA
Publisher:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey, Biological Resources Division's National Wetlands Research Center
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The accuracy is not based on a formal quantitative assessment and was based on the judgement of the data collector in the field. To attain a better estimate of accuracy, a formal re-evaluation of the Davis Pond area would be necessary to see if discrepancies exist.
Logical_Consistency_Report: Not applicable
Completeness_Report:
All data were derived in the same general format of collecting data at pre-determined stations while flying along transect routes in a helicopter. DynaMo software was used to navigate the helicopter along the lines. Data were not collected for every point along the lines where marsh types remained the same. A potential for human error exists in this data set since all classification was based on the judgement of the data collector.
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: Louisiana Department of Wildlife and Fisheries
Publication_Date: 2000
Title: Davis Pond Marsh Vegetative Type Database
Edition: 2000
Geospatial_Data_Presentation_Form: Tabular digital data
Publication_Information:
Publication_Place: New Iberia, LA
Publisher:
Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division
Type_of_Source_Media: Digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2000
Source_Currentness_Reference: Date of source data
Source_Citation_Abbreviation: LDWF
Source_Contribution: Primary data for the vegetative marsh type map
Process_Step:
Process_Description:
The original data were collected through visual field observation by Greg Linscombe of LDWF and Robert H. Chabreck of LSU Agricultural Center. The observations were made while flying over the study area in a Bell 206 Jet Ranger helicopter. DynaMo GIS software (GEOFocus, Inc) and a differental GPS (Trimble Ag 122) were used to navigate the helicopter along the transect lines. The flight data were used as a guide for delineating the marsh type lines. Attribute information was then entered in a Microsoft Access Database containing all the attribute information. A GIS software application (Arc/INFO Fishnet command) was used to generate the points along the transect routes.
Process_Date: 2001
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference: Davis Pond
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Label Point
Point_and_Vector_Object_Count: 1853
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: unknown
Longitude_Resolution: unknown
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
Denominator_of_Flattening_Ratio: 298.257
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
The data set consists of numerous attributes, including collector information, transect and station locations, date visited, health and status of vegetation, species and habitat information. The following is a list of attributes: Shape (ESRI object type), Trans-stat (transect line and station id), Longdd (longitude in decimal degrees), Latdd (latitude in decimal degrees), Transect (transect id), Station (station id), Month, Day, Year, Observer (name of data collector), Marshchar, Marshcol, Plantvigor, Stateofdet, Wbwidth, Wblenght, Wbdepth, Percentveg (percentage of vegetation presence), Location, Locother, Marshtype (code for marsh type), Sps*(species observed), Sps*_name(species scientific name), Sps*_ab (abundance range 1(uncommon), 2(common), 3(abundant/dominant)), Habitat (habitat type expected), Newhabitat (habitat type observed), Veg_Code (vegetative marsh type code). Values for these attributes may not be found in all the points. The * in the attributes Sps*, Sps*_name and Sps*_ab indicate a range in value (* can equal a thru k).
Entity_and_Attribute_Detail_Citation: Project defined
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, National Wetlands Research Center
Contact_Person: Steve Hartley
Contact_Position: Senior Geographer/GIS Analyst
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: 337-266-8543
Contact_Facsimile_Telephone: 337-266-8616
Contact_Electronic_Mail_Address: steve_hartley@usgs.gov
Hours_of_Service: 8am to 4pm CST, Monday thru Friday
Resource_Description: Davis Pond Vegetative Marsh type
Distribution_Liability:
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, National Wetlands Research Center, 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 a Biological Resources Division 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. U.S. Geological Survey, Nationa 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 limitation, the implied warranties or merchantability and fitness for a particular purpose. Also, use of trade names or commercial products in this metadata is solely for the purpose of providing specific information, and does not imply recommendation or endorsement by the US Government.

Metadata_Reference_Information:
Metadata_Date: 20050720
Metadata_Review_Date: 20030703
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, National Wetlands Research Center
Contact_Position: Metadata specialist
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: 337-266-8500
Contact_Facsimile_Telephone: 337-266-8513
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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 of the record to create a similar record of slightly altered data, such as reprojection.
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.7.33 on Wed Jul 20 13:11:58 2005