Louisiana Department of Wildlif, Fur and Refuge Division, and the U., 200106, Louisiana Coastal Marsh Vegetative Type, Geographic NAD83, LDWF (2001) [marsh_veg_type_pts_LDWF_2001]: Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey National Wetlands Research Center., Lafayette, Louisiana, US.Online Links:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Coordinates defining the features.
Sequential unique whole numbers that are automatically generated.
--------------------------------------------------------------------------------
The U.S. Geological Survey, National Wetlands Research Center acknowledges the Louisiana Department of Wildlife and Fisheries for use of raw (vegetative marsh study) data collected by Robert H. Chabreck and Greg Linscombe along flight lines over the coastal zone region.
337 373-0032 (voice)
337 373-0181 (FAX)
linscombe_rg@wlf.state.la.us
To update the Louisiana Coastal Marsh Vegetative Type Map of 1997, 1988, 1978, 1968 and 1949.
Louisiana Department of Wildlife and Fisheries, 19970601, Louisiana Coastal Marsh Vegetative Type Data Set: Louisiana Department of Wildlife and Fisheries, New Iberia, LA.
Chabreck, Robert Henry , 19700501, Marsh Zones and Vegetative Types in the Louisiana Coastal Marshes: Louisiana State University, Baton Rouge, Louisiana.
Robert H. Chabreck - School of , Wildlife, and Fisheries, Louisiana State , 19960601, Marsh Vegetation-Types of Barataria and Terrebonne Estuaries 1968 - Present(1996): LSU, Baton Rouge, LA.
Louisiana Department of Wildlif, Fur and Refuge Division, and the U., 200106, 2001 Louisiana Coastal Marsh-Vegetative Type Map (Database): Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey National Wetlands Research Center., Lafayette, LA.
Louisiana Department of Wildlif, Fur and Refuge Division, and the U., 19970601, 1997 Louisiana Coastal Marsh Vegetative Type Map (Database): Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the U.S. Geological Survey National Wetlands Research Center., Lafayette, LA.
Louisiana Department of Wildlif, Fur and Refuge Division, and US Geo, 19880800, 1988 Louisiana Coastal Marsh Vegetative Type Map (Database): Louisiana Department of Wildlife and Fisheries, Fur and Refuge Division, and the US Geological Survey National Wetlands Research Center, Lafayette, LA.
Louisiana Department of Wildlife and Fisheries, 19780800, Vegetation Type Map of Louisiana Coastal Marshes 1978: Louisiana Department of Wildlife and Fisheries, New Orleans, LA.
Louisiana Wildlife and Fisheries Commission, 19680800, Vegetation Type Map of the Louisiana Coastal Marshes 1968: Louisiana Wildlife and Fisheries Commission, New Orleans, LA.
Louisiana Department of Wildlife and Fisheries, 1949, Map of Louisiana showing the Vegetation Types of Louisiana Coastal Marshes 1949: Louisiana Department of Wildlife and Fisheries --------------------------------------------------------------------------------, New Orleans, LA.
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 Louisiana coastal marsh vegetative types would be necessary to see if there are areas where discrepancies exist.
Not applicable
Not applicable
All data was derived in the same general format of collecting data at pre-determined stations while flying along transect routes in a helicopter. GPSView software (Geowarehouse) was used to navigate the helicopter along transect lines within a 100 ft buffer zone. Data was not collected for every point along the transect lines in areas 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.
Not applicable
Are there legal restrictions on access or use of the data?
- 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 and the Louisiana Department of Wildlife and Fisheries 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.
337 266-8543 (voice)
337 266-8616 (FAX)
steve_hartley@usgs.gov
Louisiana Coastal Zone 2001 Vegetative Marsh Type Point data
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, National Wetlands Research Center 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. Any downloading and use of these data signifies a user's agreement to comprehension and compliance of the U.S. Geological Survey, National Wetlands Research Center Standard Disclaimer. Insure all portions of metadata are read and clearly understood before using these data in order to protect both user and U.S. Geological Survey, National Wetlands Research Center interests.
| Data format: | Size: 0.199 |
|---|
Not available--------------------------------------------------------------------------------
(225) 219-5800 (voice)
(225) 219-5802 (FAX)
david.gisclair@la.gov
marsh_veg_type_pts_LDWF_2001
The data herein, including but not limited to geographic data, tabular data, analytical data, electronic data structures or files, are provided "as is" without warranty of any kind, either expressed or implied, or statutory, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the data is assumed by the user. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the Louisiana Oil Spill Coordinator's Office (LOSCO) be liable for direct, indirect, incidental, consequential or special damages of any kind, including, but not limited to, loss of anticipated profits or benefits arising out of use of or reliance on the data. The LOSCO does not accept liability for any damages or misrepresentation caused by inaccuracies in the data or as a result of changes to the data caused by system transfers or other transformations or conversions, nor is there responsibility assumed to maintain the data in any manner or form.These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures.
Although these data have been processed successfully on computers at the LOSCO, no guarantee, expressed or implied, is made by LOSCO regarding the use of these data on any other system, nor does the act of distribution constitute or imply any such warranty. Distribution of these data is intended for information purposes and should not be considered authoritative for navigational, engineering, legal and other site-specific uses.
| Data format: | SHP and MDB ESRI Shapefile and Geodatabase (9.1) Size: 0.199 |
|---|---|
| Network links: |
<http://lagic.lsu.edu/data/losco/marsh_veg_type_pts_LDWF_2001.zip> |
| Media you can order: |
DVD-ROM
|
337 266-8696 (voice)
337 266-8616 (FAX)
helena_schaefer@usgs.gov
