PhysZones- Nahant to Gloucester, Physiographic Zones

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: Walter A. Barnhardt

Publication_Date: 2005

Title: PhysZones- Nahant to Gloucester, Physiographic Zones

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2005-1293

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: http/pubs.usgs.gov/of/2005/1293/gis/OFR_2005_1293/Essex_MDM.zip

Larger_Work_Citation:

Citation_Information:

Originator: Walter A. Barnhardt

Originator: Brian D. Andrews

Publication_Date: 2006

Title:

High-Resolution Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2005-1293

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, Massachusetts

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: http/pubs.usgs.gov/of/2005/1293/

Description:

Abstract:

These data physiographically characterize the seafloor between Nahant and Gloucester Massachusetts from high-resolution geophysical surveys of the seafloor . Approximately 127 km² of the inner shelf were mapped in the nearshore region between the 10m and 40-m isobath.

Note: The data were reprojected from their native projection into North American Datum 1983 (NAD83) / Massachusetts State Plane coordinate system, Mainland Zone (Fipszone 2001) meters by the Massachusetts Office of Coastal Zone Management on Oct. 17, 2006.

Purpose:

These data were produced under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center. High resolution bathymetry, backscatter intensity, and seismic profile data were collected over 127 km² area covering a portion of the South Essex Ocean Sanctuary to characterize the surface and subsurface of the seafloor for regional geologic framework investigations.

The purpose of this feature class is to qualitatively characterize the seafloor within the study area by five general physiographic zones.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20030922,20040412

Ending_Date: 20031015,20040507

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.920526

East_Bounding_Coordinate: -70.688208

North_Bounding_Coordinate: 42.572305

South_Bounding_Coordinate: 42.396511

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: USGS

Theme_Keyword: Coastal and Marine Geology Program

Theme_Keyword: CMGP

Theme_Keyword: Woods Hole Science Center

Theme_Keyword: WHSC

Theme_Keyword: Seafloor

Theme_Keyword: Marine Geology

Theme_Keyword: ArcGIS Feature Class

Theme_Keyword: field activity serial number RAFA03007

Theme_Keyword: field activity serial number RAFA04002

Theme_Keyword: Physiographic Zone

Theme_Keyword: Bottom Characterization

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: Massachusetts Bay

Place_Keyword: Atlantic Ocean

Place_Keyword: Salem Sound

Place_Keyword: Nahant

Place_Keyword: Gloucester

Place_Keyword: South Essex Ocean Sanctuary

Stratum:

Stratum_Keyword_Thesaurus: General

Stratum_Keyword: Seafloor

Temporal:

Temporal_Keyword_Thesaurus: General

Temporal_Keyword: 2003

Access_Constraints: None

Use_Constraints:

Data are not intended for navigational use.

These data should not be used at resolutions for which it is not intended.

Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Walter Barnhardt

Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Country: USA

Contact_Voice_Telephone: 508-548-8700 x2355

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: wbarnhardt@usgs.gov

Data_Set_Credit: Walter Barnhardt, Brian Andrews U.S.G.S.

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722

Data_Quality_Information:

Logical_Consistency_Report:

These data represent a qualitative characterization of the seafloor in the survey area at a scale of 1:60,000

Lineage:

Process_Step:

Process_Description:

Physiographic zones were digitized based on bathymetry and sidescan backscatter at a zoom scale of greater than 1:20,000.

Source_Used_Citation_Abbreviation: \\Walbardtxp\GIS_Essex\MDM_GDB\Essex_MDM.mdb

Process_Step:

Process_Description:

Polyline shapefile imported to an empty feature class and topology was built using "must not have dangles" and "Must be single part" with a cluster tolerance of 6.5 meters.

Process_Step:

Process_Description:

Topology was built on the feature class to identify topological errors of dangling nodes, slivers, and overshoots.

Process_Step:

Process_Description:

Polyline feature class was converted to a polygon feature class using Feature to polygon tool with cluster tolerance of 10m. Topology was built on resulting polygon feature class using "must not have gaps"

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: D:\GIS_data\metadata\physzones.xml

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: G-polygon

Point_and_Vector_Object_Count: 63

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 19

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -69.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000032

Ordinate_Resolution: 0.000032

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D_WGS_1984

Ellipsoid_Name: WGS_1984

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257224

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Resolution: 0.000010

Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: PhysZones

Attribute:

Attribute_Label: OBJECTID

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: Type

Attribute:

Attribute_Label: SHAPE_Length

Attribute_Definition: Length of feature in internal units.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: SHAPE_Area

Attribute_Definition: Area of feature in internal units squared.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated.

Attribute:

Attribute_Label: Area_km

Attribute_Definition: Area in square kilometers km²

Attribute_Definition_Source: USGS

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews

Contact_Organization: U.S. Geological Survey, Woods Hole Science Center

Contact_Position: Marine Geographer

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543

Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348

Resource_Description: Downloadable Data

Distribution_Liability:

Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.

Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Personal Geodatabase

Format_Version_Number: ArcGIS 9.0

File_Decompression_Technique: no compression applied

Transfer_Size: 164

Fees: None

Technical_Prerequisites:

These data are available in Environmental Systems Research Institute (ESRI) Personal Geodatabase format. The user must have software capable of importing and processing the data f

Metadata_Reference_Information:

Metadata_Date: 20061017

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews

Contact_Organization: U.S. Geological Survey

Contact_Position: Marine Geographer

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: bandrews@usgs.gov

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