Office of Coast Survey Wrecks and Obstructions Database

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

U.S. Department of Commerce/National Oceanic and Atmospheric Administration/National Ocean Service/Office of Coast Survey

Publication_Date: 20140601

Title: Office of Coast Survey Wrecks and Obstructions Database

Edition: Various

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage:

<http://www.nauticalcharts.noaa.gov/hsd/wrecks_and_obstructions.html>

Description:

Abstract:

The Office of Coast Survey's Wrecks and Obstructions database contains information on the identified submerged wrecks and obstructions within the U.S. maritime boundaries. The data includes the position of each feature (latitude and longitude) along with a brief description. Information to populate the database comes from what is currently available on the electronic navigational chart (ENC) and Coast Survey's Automated Wrecks and Obstructions Information System (AWOIS) database. The Massachusetts Office of Coastal Zone Management (CZM) extracted ENC wrecks and AWOIS wrecks in the Northeast from the Office of Coast Survey's Wrecks and Obstructions database.

Purpose:

The Office of Coast Survey is responsible for charting the Nation's waterways to ensure safe marine transportation and navigation. Hydrographic surveying is a critical component of this process. The AWOIS and charted (Electronic Navigational Charts - ENCs) wrecks and obstructions have been identified over the course of OCS' history and cataloged in a database for use in survey planning and also for inclusion on the nautical chart suite. The database and associated mapping services are provided to the public as a related service for general usage.

Supplemental_Information:

The data layers in this data set consist of: Automated Wrecks and Obstructions Information System (AWOIS) wreck features and navigational obstruction features, as well as Electronic Navigational Charts (ENC) wreck features. The attribution across each feature type has been standardized to be consistent. Not all attribution will be present for each feature in each layer, due to the differing sources that have been used to populate the database.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19810101

Ending_Date: 20140601

Currentness_Reference:

The AWOIS database was initiated in 1981 and continues to be maintained, however maintenance may be discontinued at some future time. ENC wreck features will reflect the most recent charted features on OCS' ENCs.

Status:

Progress: In work

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -74.623607

East_Bounding_Coordinate: -62.854913

North_Bounding_Coordinate: 45.339777

South_Bounding_Coordinate: 39.728733

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Wrecks

Theme_Keyword: Obstructions

Theme_Keyword: Navigation

Theme_Keyword: Bathymetry

Theme_Keyword: Historical

Theme_Keyword: ENC

Theme_Keyword: Nautical Charting

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: location

Theme_Keyword: oceans

Theme_Keyword: transportation

Place:

Place_Keyword_Thesaurus: NOS Data Explorer Topic Category

Place_Keyword: Nautical Charting

Place_Keyword: Bathymetry/Topography

Access_Constraints: None

Use_Constraints:

The database records are not comprehensive. There are wrecks that do not appear on the nautical charts and wrecks on the nautical charts that do not appear in the historical records. Updates to database are limited, with priority given to wrecks that may be hazards to navigation. We have removed reported wrecks that have been salvaged or disproved by further investigation.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Department of Commerce/National Oceanic and Atmospheric Administration/National Ocean Service/Office of Coast Survey

Contact_Address:

Address_Type: mailing and physical

Address: 1315 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: US

Contact_Voice_Telephone: 1-888-990-6622

Contact_Electronic_Mail_Address: HSD.Inquiries@noaa.gov

Hours_of_Service: 0700-1500 EST

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.0.4322

Data_Quality_Information:

Logical_Consistency_Report: A logical consistency report is not available for these data.

Completeness_Report:

The database records are not comprehensive. There are wrecks that do not appear on the nautical charts and wrecks on the nautical charts that do not appear in the historical records. Updates to database are limited, with priority given to wrecks that may be hazards to navigation. We have removed reported wrecks that have been salvaged or disproved by further investigation.

Lineage:

Process_Step:

Process_Description:

A KML of AWOIS wrecks was downloaded from NOAA's Office of Coast Survey (<http://www.nauticalcharts.noaa.gov/hsd/wrecks_and_obstructions.html>) on April 22, 2015 and a KML of ENC wrecks was downloaded from NOAA's Office of Coast Survey on May 12, 2015. Each KML file was converted to a CSV file using KMLCSV Converter. Each CSV file was then imported into Excel. The spreadsheets were edited to remove HTML tags and to create columns for each attribute. Extra spaces and Latin Extended characters were removed. The HISTORY field was split into multiple fields (HISTORY01, HISTORY02, etc.) since most of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters. Next, each Excel spreadsheet was added to ArcGIS and the points were displayed as XY data in the North American Datum of 1983 (NAD83) using the LATDEC and LONDEC fields. The data were exported as point shapefiles. The data were then selected by attributes to select data in the Northeast. The following expression was used: "LATDEC" > 40 AND "LONDEC" > -74.5 AND "LONDEC" < -62. The selected data were projected to the Massachusetts State Plane Coordinate System, Mainland Zone (FIPS zone 2001), meters. Finally, the ENC and AWOIS wrecks were merged.

Process_Date: 20150518

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Massachusetts Office of Coastal Zone Management

Contact_Position: CZM Data Manager

Contact_Address:

Address_Type: mailing and physical

Address: 251 Causeway Street, Suite 800

City: Boston

State_or_Province: MA

Postal_Code: 02114-2138

Country: US

Contact_Voice_Telephone: 617-626-1200

Contact_Facsimile_Telephone: 617-626-1240

Contact_Electronic_Mail_Address: czm@state.ma.us

Hours_of_Service: 0900 hrs to 1600 hrs EST

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 3978

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD 1983 StatePlane Massachusetts Mainland FIPS 2001

Lambert_Conformal_Conic:

Standard_Parallel: 41.71666666666667

Standard_Parallel: 42.68333333333333

Longitude_of_Central_Meridian: -71.5

Latitude_of_Projection_Origin: 41.0

False_Easting: 200000.0

False_Northing: 750000.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000008155898179040834

Ordinate_Resolution: 0.000000008155898179040834

Planar_Distance_Units: meter

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Attribute Table

Entity_Type_Definition:

Table containing attribute information associated with the dataset.

Entity_Type_Definition_Source: DOC/NOAA/NOS/OCS

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: RECRD

Attribute_Definition:

Unique numerical record identifier (East Coast: 1 - 49,999, West Coast: 50,000 +). (AWOIS only. ENC wrecks were given a value of -9999.)

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 115

Range_Domain_Maximum: 15207

Attribute:

Attribute_Label: VESSLTERMS

Attribute_Definition:

Name of the vessel (if known) or the terms UNKNOWN or OBSTRUCTION.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: FEATURE_TY

Attribute_Definition: Describes the physical characteristics of the feature.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 50.

Attribute:

Attribute_Label: CHART

Attribute_Definition:

Information about the source of the object. The following format is used: Country (c2) (two letter code from ISO 3166 [refer to Annex A to S-57 Appendix A]), Authority (c2) (a string of two alphanumeric characters [refer to Annex A to S-57 Appendix A]), Source (c5) (graphic [e.g., plotting sheet, paper chart = graph]; report [e.g., wreck report = reprt]), ID-Code (c...) (e.g., code of paper chart). (ENC wrecks only.)

Attribute_Definition_Source:

Definition of SORIND from S-57 Object Catalog (<http://www.s-57.com/>).

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 50.

Attribute:

Attribute_Label: LATDEC

Attribute_Definition:

Latitude in decimal degrees using the North American Datum of 1983 (NAD83).

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 40.001114

Range_Domain_Maximum: 45.216739

Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: LONDEC

Attribute_Definition:

Longitude in decimal degrees using the North American Datum of 1983 (NAD83).

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -74.392498

Range_Domain_Maximum: -63

Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: GP_QUALITY

Attribute_Definition:

An indicator of the relative positional quality of the feature. A description of positional accuracy categories is provided below. (AWOIS only.)

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: High

Enumerated_Domain_Value_Definition:

A high quality position originating from a survey source or whenever there is a high level of confidence that the wreck or obstruction may be relocated without unreasonable difficulty. Although most positions in this category originate with NOS surveys, other sources may qualify, as long as the originating authority has the capability to do high quality work. Authorities such as the U.S. Army Corps of Engineers and private surveyors are selected examples.

Enumerated_Domain_Value_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Med

Enumerated_Domain_Value_Definition:

A probable high quality position, such as that originating with a survey but lacking supporting documentation. Positions originating from non-agency sources may also be in this category if the location is tightly controlled by adjacent features such as pier lines or fixed aids to navigation. A report that the wreck or obstruction has been actually located by the Coast Guard or Corps of Engineers will usually qualify a position for this category. In some cases, the item may be charted with an approximate position (PA) notation.

Enumerated_Domain_Value_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Low

Enumerated_Domain_Value_Definition:

A position of questionable or unverified quality. Most reports from Local Notice to Mariners and private observers are of this type. If the reported position is expressed a range and bearing from an identifiable fixed feature and is near shore relative to the position fixing method, it will probably be included in this category. If the position fixing method is unknown, it is assumed to be visual. The nautical chart may indicate an approximate position (PA) for this item.

Enumerated_Domain_Value_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Poor

Enumerated_Domain_Value_Definition:

A position of doubtful quality usually referenced to some general shoreline feature or portion of shoreline. The nautical chart may indicate an approximate position (PA) or a position doubtful (PD) for this item.

Enumerated_Domain_Value_Definition_Source: DOC/NOAA/NOS/OCS

Attribute:

Attribute_Label: DEPTH

Attribute_Definition:

Actual least depth or wire drag cleared depth over a feature that has been determined by hydrographic or wire drag survey methods. ENC Depths are always reported in meters. For AWOIS items, the units are indicated by the attribute Depth Units. Features with no data were given a value of -9999.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -1.2

Range_Domain_Maximum: 12402

Attribute:

Attribute_Label: SOUNDING_T

Attribute_Definition:

Indicates the units in which the least depth over the feature has been determined.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 50.

Attribute:

Attribute_Label: YEARSUNK

Attribute_Definition:

The year in which the vessel was sunk, if known. Features with no data were given a value of -9999. (AWOIS only. ENC wrecks were given a value of -9999.)

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1902

Range_Domain_Maximum: 1991

Attribute:

Attribute_Label: QUASOU

Attribute_Definition:

Indication of the reliability of the value of sounding over the wreck. (ENC wrecks only.)

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 50.

Attribute:

Attribute_Label: WATLEV

Attribute_Definition:

Indicates the effect of the surrounding water on the wreck. (ENC wrecks only.)

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 50.

Attribute:

Attribute_Label: HISTORY01

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY02

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY03

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY04

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY05

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY06

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY07

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY08

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY09

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY10

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY11

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY12

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY13

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Attribute:

Attribute_Label: HISTORY14

Attribute_Definition:

Memo field that contains additional information about the feature. For AWOIS features, entries in this category may be or unreliable. Common codes in AWOIS histories include hydrographic survey registry numbers (e.g., H-9872/79), shoreline manuscript registry numbers (e.g., TP-00278), miscellaneous document numbers (e.g., CL980/76 and BP100234), and U.S. Coast Guard Local Notices to Mariners (LNM). Any positions in the History memo field are for reference purposes only and will have generally been superseded by the positions in the Latitude and Longitude fields. CZM divided the HISTORY field into multiple fields since many of the AWOIS records were longer than 255 characters and ArcGIS can only read the first 255 characters in a field.

Attribute_Definition_Source: DOC/NOAA/NOS/OCS

Attribute_Domain_Values:

Unrepresentable_Domain: Text string of width 254.

Overview_Description:

Entity_and_Attribute_Overview:

Details of the attributes of the wrecks and obstructions data sets are provided on the Wrecks and Obstructions Database User's Guide website.

Entity_and_Attribute_Detail_Citation:

The Wrecks and Obstructions Database User's Guide is available at <http://www.nauticalcharts.noaa.gov/hsd/wrecks_and_obstructions_background.html>.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: DOC/NOAA/NOS/OCS

Contact_Address:

Address_Type: mailing and physical

Address: 1315 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: US

Contact_Voice_Telephone: 1-888-990-6622

Contact_Electronic_Mail_Address: HSD.Inquiries@noaa.gov

Distribution_Liability: None.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: OCS Wrecks and Obstructions Website

Format_Version_Number: unknown

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<http://www.nauticalcharts.noaa.gov/hsd/wrecks_and_obstructions.html>

Fees: No Fees. This is a free service.

Metadata_Reference_Information:

Metadata_Date: 20150518

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: DOC/NOAA/NOS/ACIO

Contact_Position: NOS ACIO Metadata Management Team

Contact_Address:

Address_Type: mailing and physical

Address: 1315 East West Highway

City: Silver Spring

State_or_Province: MD

Postal_Code: 20910

Country: US

Contact_Voice_Telephone: 1-888-990-6622

Contact_Electronic_Mail_Address: nosmetadata@noaa.gov

Contact_Instructions:

The National Ocean Service (NOS) is a Line Office under the U.S. Department of Commerce (DOC) / National Oceanic and Atmospheric Administration (NOAA). The Metadata Management team of the NOS Assistant of the Chief Information Officer (NOS ACIO IT) is responsible for the publication of geospatial metadata published by NOS Program Offices to its NOS Data Explorer Geoportal and the federal clearinghouse, Data.gov geoportal. The NOS Metadata Management team reviews for metadata standards and conventions set down by guidance. NOS Program Office metadata managers author the content of the geospatial metadata. For questions about metadata publication, direct inquiries to the NOS ACIO IT Metadata Management team. The NOS Program Office contact in the Data Identification is the default point of contact for any content inquiries, unless a specific Responsible Party is identified otherwise.

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time