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: Browse_Graphic: Browse_Graphic_File_Name: 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: Resource_Description: congeog3dlbth This is the explanation for the obtuse name: 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: 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: 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