The lineage of the source data is unclear, but the understanding is that a LADWF dataset was obtained/modified by LDNR, the USCOE obtained these data from LDNR, and may have done further processing including projection before providing the source data to LOSCO.
The metadata for this data set are encapsulated into several documents and graphics files. The metadata are not complete if you did not receive the following files along in the data set:
oyster_leases_USACE_1997.mtd - this metadata in mp (metadata parser) compatible ASCII text form oyster_leases_USACE_1997.html - this metadata in HTML form oyster_leases_USACE_1997_faq.html - this metadata presented as Questions and Answers oyster_leases_USACE_1997.sgml - this metadata in SGML form oyster_leases_USACE_1997_01.gif - thumbnail graphic of data set oyster_leases_USACE_1997_02.gif - larger, close up view of the data set overlaying the TM image of LouisianaThe attribute and/or geometric component(s) of the data are provided as Arc export (.e00) file(s) and the corresponding three part (.shp, .shx, .dbf) shapefile(s) or standalone .dbf file(s) in the case an export file is a standalone INFO file. You should have received the following as part of the dataset:
oyster_leases_USACE_1997.e00 oyster_leases_USACE_1997.shp oyster_leases_USACE_1997.shx oyster_leases_USACE_1997.dbf
Louisiana Oil Spill Coordinator's Office (LOSCO), 1998, Oyster leases in Louisiana, Geographic NAD83, LOSCO (1997) [oyster_leases_USACE_1997].Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
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.
LOSCO gratefully acknowledges the US Corps of Engineers for providing the source data for production of this data set and Jay Ratcliff for providing additional information necessary to process the data.
(225) 219-5800 (voice)
(225) 219-5802 (FAX)
<URL:mailto:david.gisclair@la.gov>
This data set is useful for depicting the general location of oyster leases in Louisiana. These areas where leases are let remain fairly constant over the years, even though ownership of individual lease areas may change, and certain areas may be closed to harvesting for extended periods.The potential for injury to oyster beds by an oil spill or subsequent cleanup operation is a concern of LOSCO, thus knowledge of these areas is a concern of LOSCO. This data set in geographic coordinates, NAD83 will be used as a reference data set by LOSCO until a better one with a known processing history is obtained.
US Army Corps of Engineers, 1997, Oyster lease areas for Louisiana.
Person who carried out this activity:
(352) 379-3001 (voice)
Data sources used in this process:
none
The lease areas are indicated by arcs that may or may not close. Polygon topology has not been created because there are many overlapping polygon areas, channels (or gaps) between adjacent polygons, and unclosed polygons. Overlay of these data onto the TM image of Louisiana demonstrates that the data appear to delineate shallow water areas fairly closely.
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints:
- These unaltered data may not be redistributed without all of the elements of the metadata listed in the Supplemental_Information section of this metadata document. It is recommended that third parties wishing to use these data obtain them from the Distributor listed in this metadata document.
If these data are altered or incorporated into another dataset, they are not to be redistributed without also: altering the name of the dataset, including a Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998) compliant metadata file that describes the dataset and reflects the alteration steps that makes the new dataset different from this one, and citing this dataset in the metadata as a source for the altered dataset using the source citation specified below.
If these digital data are used in the production of a report or in the compilation of a standalone printed map, then this dataset is to be cited in the report or on the map using the source citation specified below.
The following source citation is to be used when citing this dataset: LOSCO Environmental Baseline Inventory Dataset 'Oyster Lease Areas in Louisiana from USCOE source data, Geographic NAD83, LOSCO (1998) [oyster_leases_USACE_1997]'
Users hereby agree to abide by the use and reproduction conditions specified above. By using the data described in these metadata, the user acknowledges that the terms and conditions of use have been read and that the user is bound by these criteria.
(225) 219-5800 (voice)
(225) 219-5802 (FAX)
<URL:mailto:david.gisclair@la.gov>
oyster_leases_USACE_1997
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: | Geometry, attributes, and metadata in format SHP and MDB ESRI Shapefile and Geodatabase (9.1) Size: 5.3 |
|---|---|
| Network links: |
<http://lagic.lsu.edu/data/losco/oyster_leases_USACE_1997.zip> |
| Media you can order: |
DVD-ROM
|
(352) 379-3001 (voice)
(352) 377-4234 (FAX)
hphillips@gnv.3001data.com
