Offshore bathymetry for Louisiana 2 Meters

Metadata also available as - [Questions & Answers] - [Parseable text]

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Louisiana Oil Spill Coordinator's Office (LOSCO)
Publication_Date: 1999
Title: Offshore bathymetry for Louisiana 2 Meters
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: <http://lagic.lsu.edu/loscoweb>
Description:
Abstract:
This is a line data set depicting the offshore bathymetry for Louisiana. The contour interval is 2 meters. These data were derived from point depths depicted on NOAA Navigation charts. The depths on the NOAA charts are typically relative to 'mean low Gulf' levels, so these depths are conservative.
Purpose:
A precursor to this dataset was developed as a surface for numerical wave modeling. This data set was developed in order that the 10 meter depth line could be extracted for other uses. The 10 meter depth line forms a regulatory boundary for dispersant use and in-situ burn pre-approval areas.

The user should be aware that meteorological events such as hurricanes may alter these depths or may have already have already altered the actual depths from those represented on the source NOAA charts. Furthermore, geomorphological processes due to sediment load are causing landward migration of isocontours at a rate of about 25 meters per year in the Mississippi River Delta Plain area (east and west of where the Mississippi empties out into the Gulf). Because these data are based on historical NOAA charts, the effects of this migration have not been captured.

Supplemental_Information:
These metadata describe the Arc/Info coverage of name 'congeog3dlbth' and the shapefile of the same name derived from it. These metadata also describe the dataset 'bathymetry' which is how this data set was named on the 'Louisiana GIS CD: A Digital Map of the State.'

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:

congeog3dlbth.mtd - this metadata in mp (metadata parser) compatible ASCII text form
congeog3dlbth.html - this metadata in HTML form
congeog3dlbth_faq.html - this metadata presented as Questions and Answers
congeog3dlbth.sgml - this metadata in SGML form
congeog3dlbth1.gif - thumbnail graphic of data set
The 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:
congeog3dlbth.e00
congeog3dlbth.shp
congeog3dlbth.shx
congeog3dlbth.dbf
congeog3dlbth.prj - coordinate system definition file for shape
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19900400
Ending_Date: 19940600
Currentness_Reference:
Range of publication dates of NOAA charts from which depths were digitized.
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -93.951630
East_Bounding_Coordinate: -88.821663
North_Bounding_Coordinate: 30.369144
South_Bounding_Coordinate: 28.541408
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: navigation charts
Theme_Keyword: bathymetric lines
Theme_Keyword: wave modeling
Theme_Keyword: NOAA
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Louisiana
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 'Louisiana Offshore Bathymetry, Geographic NAD83, LOSCO (1999) [congeog3dlbth]'

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.

Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Louisiana Oil Spill Coordinator's Office
Contact_Person: David Gisclair
Contact_Position: Technical Assistance Program (TAP) Director
Contact_Address:
Address_Type: mailing address
Address: Louisiana Oil Spill Coordinator's Office
Address: Office of the Governor
Address: P.O. Box 94095
City: Baton Rouge
State_or_Province: LA
Postal_Code: 70804
Contact_Voice_Telephone: (225) 219-5800
Contact_Facsimile_Telephone: (225) 219-5802
Contact_Electronic_Mail_Address: <URL:mailto:tapgis@linknet.idt.net>
Browse_Graphic:
Browse_Graphic_File_Name: <URL:congeog3dlbth1.gif>
Browse_Graphic_File_Description: thumbnail graphic of data set
Browse_Graphic_File_Type: GIF
Data_Set_Credit:
LOSCO gratefully acknowledges the Coastal Morphology Lab, Coastal Studies Institute at LSU for providing the source data for production of this data set.
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:
Logical_Consistency_Report:
Original digitized points were checked with a proximity (anomaly) filter. There are 17 intersection errors in the data set, primarily where neighboring contour lines make contact.
Completeness_Report:
These data represent contours that are oceanward of the the first 2 meter depth line that runs the entire length of the Louisiana Coast. All contours landward of this line have been deleted. The data set has a gap in the region of the Chandeleur Islands. At depths of 1000 meters and greater, the contour interval increases to 10 meters.
Lineage:
Process_Step:
Process_Description:
Bathymetric points were digitized from the NOAA (NOS) 1:80,000 navigation charts. Intergraph design files were produced for seven charts. Intergraph Terrain Analyst was used to produce a single file with 500 foot, interpolated grid points in ASCII format.
Process_Date: 1999
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Louisiana State University, Coastal Studies Institute
Contact_Person: Dr. Greg Stone
Contact_Address:
Address_Type: mailing address
Address: Louisiana State University
City: Baton Rouge
State_or_Province: LA
Postal_Code: 70803
Contact_Voice_Telephone: (225) 388-4728
Contact_Electronic_Mail_Address: GAGREG@lsu.edu
Process_Step:
Process_Description:
The ASCII formatted file was transformed into a 2 meter (contour interval) vector file using TerraModel. Design files were exported and converted into ArcView shapefiles.
Process_Date: 19990915
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: 3001, Inc.
Contact_Person: Jeff Lower
Contact_Address:
Address_Type: mailing and physical address
Address: 3655 SW 2nd Avenue, Suite 3-C
City: Gainesville
State_or_Province: FL
Postal_Code: 32607
Contact_Voice_Telephone: (352) 379-3001
Contact_Electronic_Mail_Address: jlower@gnv.3001data.com
Process_Step:
Process_Description:
The shapefile in UTM zone 15, NAD83 coordinates was edited to remove all contours landward of the first 2 meter depth contour that was continuous along the entire coast of Louisiana. The shapefile was converted to a line Arc/Info coverage, then projected to geographic coordinates NAD83. The arc intersect errors that were readily resolved (about half) were corrected. The resultant cover was converted to a shape and the arcs of the shape were merged on the depth value.
Process_Date: 19991027
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: 3001, Inc.
Contact_Person: Hugh Phillips
Contact_Address:
Address_Type: mailing and physical address
Address: 3655 SW 2nd Avenue, Suite 3-C
City: Gainesville
State_or_Province: FL
Postal_Code: 32607
Contact_Voice_Telephone: (352) 379-3001
Contact_Electronic_Mail_Address: hphillips@gnv.3001data.com
Process_Step:
Process_Description: Dataset copied.
Source_Used_Citation_Abbreviation:
Server=dogbert.er.usgs.gov; Service=5151; User=usgs; Version=SDE.DEFAULT

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 518

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000000
Longitude_Resolution: 0.000000
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: la_bathy_2m
Entity_Type_Definition: arc attribute table for congeog3dlbth
Entity_Type_Definition_Source: 3001, Inc.
Attribute:
Attribute_Label: FID
Attribute_Definition: depth that contour delineates
Attribute_Definition_Source: 3001, Inc.
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -1180.00
Range_Domain_Maximum: -2.00
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Shape
Attribute_Definition: type of contour line
Attribute_Definition_Source: 3001, Inc.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: intermediate
Enumerated_Domain_Value_Definition: indicates every 2 meter contour line
Enumerated_Domain_Value_Definition_Source: 3001, Inc.
Enumerated_Domain:
Enumerated_Domain_Value: index
Enumerated_Domain_Value_Definition: indicates every 10 meter contour line
Enumerated_Domain_Value_Definition_Source: 3001, Inc.
Enumerated_Domain:
Enumerated_Domain_Value: intermediate_dep
Enumerated_Domain_Value_Definition: intermediate depression; 2 meter depression line
Enumerated_Domain_Value_Definition_Source: 3001, Inc.
Enumerated_Domain:
Enumerated_Domain_Value: index_dep
Enumerated_Domain_Value_Definition: index depression; 10 meter depression line
Enumerated_Domain_Value_Definition_Source: 3001, Inc.
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: OBJECTID
Attribute:
Attribute_Label: DEPTH_M
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: FIRST_CONT
Attribute:
Attribute_Label: SHAPE_LEN

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Louisiana Oil Spill Coordinator's Office
Contact_Person: David Gisclair
Contact_Position: Technical Assistance Program (TAP) Director
Contact_Address:
Address_Type: mailing address
Address: Louisiana Oil Spill Coordinator's Office
Address: Office of the Governor
Address: P.O. Box 94095
City: Baton Rouge
State_or_Province: LA
Postal_Code: 70804
Contact_Voice_Telephone: (225) 219-5800
Contact_Facsimile_Telephone: (225) 219-5802
Contact_Electronic_Mail_Address: <URL:mailto:tapgis@linknet.idt.net>
Resource_Description:
congeog3dlbth

This is the explanation for the obtuse name: <URL:http://www.3001data.com/metadata/systematic_name.html>

Distribution_Liability:
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.

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE (Arc/INFO export), ESRI shapefile, ASCII, HTML
Format_Information_Content: Geometry, attributes, and metadata
File_Decompression_Technique:
PC based PKZip compatible products (WinZIP, unzip) may be used to decompress the data bundle consisting of Arc export (.e00) file(s), shapefile(s), and associated metadata files in mp (metadata parser) compatible ASCII text and HTML forms. If the .zip archive is decompressed directly on a UNIX system, then DOS to UNIX file conversion may be necessary for correct display and operation of the resultant non-binary files (most importantly, the .e00 file).
Transfer_Size: 19
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <URL:http://losco.state.la.us>
Fees: none
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI shapefile, ASCII, HTML
Format_Information_Content: Geometry, attributes, and metadata
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: Joliet
Fees: none
Ordering_Instructions:
Contact the distribution contact for instructions on obtaining a copy of the 'Louisiana GIS CD: A Digital Map of the State' of which this dataset (named 'bathymetry')is a part.

Metadata_Reference_Information:
Metadata_Date: 20030625
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: 3001, Inc.
Contact_Person: Mendi Johnson
Contact_Position: GIS Analyst
Contact_Address:
Address_Type: mailing and physical address
Address: 3655 SW 2nd Ave., Suite 3C
City: Gainesville
State_or_Province: FL
Postal_Code: 32607
Contact_Voice_Telephone: (352) 379-3001
Contact_Facsimile_Telephone: (352) 377-4234
Contact_Electronic_Mail_Address: <UR::<mailto:mjohnson@gnv.3001data.com>
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.7.3 on Wed Jun 25 11:35:10 2003