Physiographic Shell Zones of the Sea Floor of Buzzards Bay, Massachusetts (BuzzardsBay_ShellZones, polygon shapefile, Geographic WGS 84)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: David S. Foster
Publication_Date: 2014
Title:
Physiographic Shell Zones of the Sea Floor of Buzzards Bay, Massachusetts (BuzzardsBay_ShellZones, polygon shapefile, Geographic WGS 84)
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2014-1220
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.3133/ofr20141220
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: David S. Foster
Originator: Wayne E. Baldwin
Originator: Walter A. Barnhardt
Originator: William C. Schwab
Originator: Seth D. Ackerman
Originator: Brian D. Andrews
Originator: Elizabeth A. Pendleton
Publication_Date: 2014
Title:
Shallow Geology, Sea-Floor Texture, Physiographic Zones of Buzzards Bay, Massachusetts
Edition: 1.1
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2014-1220
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://dx.doi.org/10.3133/ofr20141220
Description:
Abstract:
Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Buzzards Bay, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of Massachusetts.
Purpose:
This sea-floor physiographic zone was created from geophysical and sample data collected from Buzzards Bay, and is used to characterize the sea floor in the area. Physiographic zone maps are important data layers for marine resource managers charged with protecting fish habitat, delineating marine boundaries, and assessing environmental change due to natural or human impacts. The physiographic zone, shell zone, was mapped separate from all other physiographic zones to avoid overlapping polygons, which would cause issues with the topology editing.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040101
Ending_Date: 20110831
Currentness_Reference:
ground condition of the source data that this interpretation is based on
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.944425
East_Bounding_Coordinate: -70.652979
North_Bounding_Coordinate: 41.680620
South_Bounding_Coordinate: 41.448175
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:8852b405-be89-48d7-ba58-205b1e9e4132
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: Massachusetts Office of Coastal Zone Management
Theme_Keyword: CZM
Theme_Keyword: Sea floor
Theme_Keyword: Marine Geology
Theme_Keyword: Interpretation
Theme_Keyword: Bathymetry
Theme_Keyword: Backscatter
Theme_Keyword: Slope
Theme_Keyword: Topography
Theme_Keyword: Esri Shapefile
Theme_Keyword: Physiographic Zones
Theme_Keyword: Shell Zones
Theme_Keyword: Sediment Samples
Theme_Keyword: Seismic-reflection Profiles
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: scientific interpretation
Theme_Keyword: sea-floor characteristics
Theme_Keyword: marine geology
Theme_Keyword: geospatial datasets
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Buzzards Bay
Place_Keyword: Atlantic Ocean
Place_Keyword: Westport
Place_Keyword: Dartmouth
Place_Keyword: New Bedford
Place_Keyword: Fairhaven
Place_Keyword: Mattapoisett
Place_Keyword: Marion
Place_Keyword: Wareham
Place_Keyword: Bourne
Place_Keyword: Falmouth
Place_Keyword: Woods Hole
Place_Keyword: Elizabeth Islands
Place_Keyword: Naushon Island
Place_Keyword: Gosnold
Place_Keyword: Cuttyhunk Island
Place_Keyword: Penikese Island
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: Sea floor
Access_Constraints: None
Use_Constraints:
Not to be used for navigation. 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. Additionally, there are limitations associated with qualitative sediment mapping interpretations. Because of the scale of the source geophysical data and the spacing of samples, not all changes in sea floor texture are captured. The data were mapped between 1:5,000 and 1:20,000, but the recommended scale for application of these data is 1:25,000. Not all digitized sea floor features contained sample information, so often the sea floor texture is characterized by the nearest similar feature that contains a sample. Conversely, sometimes a digitized feature contained multiple samples and not all of the samples within the feature were in agreement (of the same texture). In these cases the dominant sediment texture was chosen to represent the primary texture for the polygon. Samples from rocky areas often only consist of bottom photographs, because large particle size often prevents the recovery of a sediment sample. Bottom photo classification can be subjective, such that determining the sediment type that is greater than 50% of the view frame is estimated by the interpreter and may differ among interpreters. Bottom photo transects often reveal changes in the sea floor over distances of less than 100 m and these changes are often not observable in acoustic data. Heterogeneous sea floor texture can change very quickly, and many small-scale changes will not be detectable or mappable at a scale of 1:25,000. The boundaries of polygons are often inferred based on sediment samples, and even boundaries that are traced based on amplitude changes in geophysical data are subject to migration. Polygon boundaries should be considered an approximation of the location of a change in texture.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David S. Foster
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2271
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dfoster@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Image of the physiographic Shell Zone shapefile for Buzzards Bay
Browse_Graphic_File_Type: PNG
Native_Data_Set_Environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4095
Cross_Reference:
Citation_Information:
Originator: Kelley, J.T.
Originator: Barnhardt, W.A.
Originator: Belknap, D.F.
Originator: Dickson, S.M.
Originator: Kelley, A.R.
Publication_Date: 1998
Title:
The Seafloor Revealed: The Geology of the Northwestern Gulf of Maine Inner Continental Shelf
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Maine Geological Survey Open-File Report
Issue_Identification: 96-6
Publication_Information:
Publication_Place: Augusta, Maine
Publisher:
Maine Geological Survey, Natural Resources Information and Mapping Center
Online_Linkage:
Cross_Reference:
Citation_Information:
Originator: Ford, K.H.
Originator: Voss, S.E
Publication_Date: 2010
Title:
Seafloor Sediment Composition in Massachusetts Determined Using Point Data
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Massachusetts Division of Marine Fisheries Technical Report
Issue_Identification: TR-45
Publication_Information:
Publication_Place: New Bedford, MA
Publisher: Massachusetts Division of Marine Fisheries
Online_Linkage: http://www.mass.gov/eea/docs/dfg/dmf/publications/tr-45.pdf
Data_Quality_Information:
Logical_Consistency_Report:
These data were drawn and vetted for accuracy using the source input rasters and point sample data described in the processing steps and source contributions.
Completeness_Report:
These physiographic shell zones are defined for areas where source data exists.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
These data were produced qualitatively from acoustic and bottom photographic data. Horizontal uncertainty associated with bottom photograph collection is comparable to positional uncertainty associated with acoustic data (usually less than <10's of meters). These qualitatively derived polygons outlining sea floor features are estimated to be within 50 meters.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: There are no vertical attributes associated with these data.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Poppe, L.J.
Originator: Ackerman, S.D.
Originator: Foster, D.S.
Originator: Blackwood, D.S.
Originator: Butman, B.
Originator: Moser, M.S.
Originator: Stewart, H.F.
Publication_Date: 2007
Title:
Sea-floor character and surface processes in the vicinity of Quicks Hole, Elizabeth Islands, Massachusetts
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2006-1357
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2006/1357/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040101
Ending_Date: 20050601
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Poppe and others, 2007
Source_Contribution:
This publication provides the source geophysical (backscatter and bathymetry) and bottom photographs and sediment samples for the Quicks Hole area of Buzzards Bay. Two 29-foot launches deployed from the NOAA Ship Thomas Jefferson were used to acquire bathymetric and backscatter data during 2004. The multibeam bathymetric data were collected with hull-mounted 455-kHz RESON 8125 and 240-kHz RESON 8101 systems. The sidescan sonar data were acquired with a hull-mounted Klein 5250 system operating at 100 kHz. Sediment samples and bottom photos were collected aboard the R/V Rafael with a modified Van Veen grab sampler and SEABOSS, respectively.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Pendleton, E.A.
Originator: Twichell, D.C.
Originator: Foster, D.S.
Originator: Worley, C.R
Originator: Irwin, B.J.
Originator: Danforth, W.W.
Publication_Date: 2012
Title:
High-resolution geophysical data from the sea floor surrounding the Western Elizabeth Islands, Massachusetts
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1184
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2011/1184/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20100909
Ending_Date: 20100918
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Pendleton and others, 2012
Source_Contribution:
This report provided source geophysical (sidescan, bathymetry, and seismic-reflection profiles) for the area of Buzzards Bay surrounding the western Elizabeth Islands. Surveying was conducted aboard the RV Rafael in September 2010. Interferometric-sonar, sidescan-sonar, and chirp seismic-reflection systems were deployed simultaneously during the cruise. Bathymetric sounding data were collected with an SEA SWATHplus 234-kilohertz (kHz) interferometric sonar system. Sidescan-sonar (acoustic-backscatter) data were acquired with a Klein 3000 dual-frequency (100 and 500 kHz) sidescan-sonar system. High-resolution chirp seismic-reflection profiles were collected using an EdgeTech Geo-Star full spectrum sub-bottom (FSSB) system and SB-424 towfish.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Turecek, A.M.
Originator: Danforth, W.W.
Originator: Baldwin, W.E.
Originator: Barnhardt, W.A.
Publication_Date: 2012
Title:
High-resolution geophysical data collected within Red Brook Harbor, Buzzards Bay, Massachusetts, in 2009
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2012-1091
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2010/1091/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090928
Ending_Date: 20091117
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Turecek and others, 2012
Source_Contribution:
This report provided the source geophysical (sidescan, bathymetry, and seismic-reflection profiles), sediment sample and bottom photograph data for Buzzards Bay in the area of Red Brook Harbor. Surveying was conducted aboard the R/V Rafael. Bathymetric data were collected with an SEA SWATHplus 234-kilohertz (kHz) interferometric sonar system. Acoustic backscatter, a measure of the intensity of returns from an insonified area of the sea floor, was recorded by the SEA SWATHplus interferometric sonar system. Seismic reflection profiles were collected with a Knudsen Engineering, Ltd. (KEL) Chirp 3202 dual-frequency (centered at 3.5- and 200-kHz) Chirp system. The USGS Mini SEABed Observation and Sampling System (Mini SEABOSS) was used to collect digital photography and video and sediment samples
Source_Information:
Source_Citation:
Citation_Information:
Originator: Ackerman, S.D.
Originator: Andrews, B.D.
Originator: Foster, D.S.
Originator: Baldwin, W.E.
Originator: Schwab, W.C.
Publication_Date: 2013
Title:
High-Resolution Geophysical Data from the Inner Continental Shelf: Buzzards Bay, Massachusetts
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2012-1002
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2012/1002/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20040330
Ending_Date: 20110517
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Ackerman and others, 2013
Source_Contribution:
This report provided the source geophysical (sidescan, bathymetry, and seismic-reflection profiles) for Buzzards Bay. The mapping was conducted during research cruises aboard the NOAA Ship RUDE (2004), the Megan T. Miller (2009 and 2010) and the Scarlett Isabella (2011). The NOAA Ship RUDE acquired bathymetric soundings in 2004 using a RESON SeaBat 8125 455-kHz multibeam-echosounder system. All other surveys used the following systems: bathymetric data were acquired in the Buzzards Bay survey area using a Systems Engineering and Assessment, Ltd. (SEA) SWATHplus-M 234-kilohertz (kHz) interferometric sonar system; acoustic backscatter data were collected with a Klein 3000 dual-frequency sidescan-sonar (132 and 445 kHz); chirp seismic-reflection data were collected in the Buzzards Bay survey area using an EdgeTech Geo-Star FSSB subbottom profiling system and an SB-0512i towfish.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Pendleton, E.A.
Originator: Andrews, B.D.
Originator: Danforth, W.W.
Originator: Foster, D.S.
Publication_Date: 2014
Title:
High-resolution geophysical data collected aboard the U.S. Geological Survey research vessel Rafael to supplement existing datasets from Buzzards Bay and Vineyard Sound, Massachusetts
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2013-1020
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2013/1020/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20100713
Ending_Date: 20110831
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Pendleton and others, 2014
Source_Contribution:
This report provided the source geophysical (sidescan, bathymetry, and seismic-reflection profiles) for Buzzards Bay in the area of Naushon Island and seismic reflection profiles in northeast Buzzards Bay. These areas were surveyed with the RV Rafael in 2010 and 2011. In 2010, seismic-reflection data were acquired with a boomer source and GeoEel 8-channel streamer. Interferometric-sonar, sidescan-sonar, and Knudsen seismic-reflection systems were deployed simultaneously during cruise 2011. Bathymetry data were collected with an SEA SWATHplus 234-kilohertz (kHz) interferometric sonar system. Sidescan-sonar (acoustic-backscatter) data were acquired with a Klein 3000 dual-frequency (100 and 500 kHz) sidescan-sonar system. of high-resolution chirp seismic data were collected using a dual frequency (3.5 and 200 kHz) Knudsen Engineering Limited (KEL) Chirp 3202 system.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Ford, K.H.
Originator: Huntley, E.C.
Originator: Sampson, D.W.
Originator: Voss, S.
Publication_Date: Unpublished Material
Title: Massachusetts Sediment Database
Geospatial_Data_Presentation_Form: vector digital data
Other_Citation_Details:
This sample database has been compiled and vetted from existing samples and datasets by the Massachusetts Office of Coastal Zone Management. The data are currently unpublished, but may be acquired by contacting the CZM office: 251 Causeway St Boston, MA 02114 (617) 626-1000 czm@state.ma.us
Type_of_Source_Media: digital vector
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19950101
Ending_Date: 20110101
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: CZM sample database
Source_Contribution:
Sediment sample databases of Ford and Voss (2010) and McMullen and others (2011) were combined then edited and supplemented with NOAA chart sampling data and bottom photos and descriptions by a group of GIS specialists at the Massachusetts Office of Coastal Zone Management (Emily Huntley, personal communication). These data contained sediment laboratory statistics when available, visual descriptions if sediment analysis was not performed or if the site was a bottom photograph, and classification fields of Barnhardt and others (1998), Shepard (1954), and Wentworth (1922) as well as average sediment statistics and phi size, when laboratory analysis was conducted.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Poppe, L.J.
Originator: McMullen, K.Y.
Originator: Foster, D.S.
Originator: Blackwood, D.S.
Originator: Williams, S.J.
Originator: Ackerman, S.D.
Originator: Barnum, S.R.
Originator: Brennan, R.T.
Publication_Date: 2008
Title:
Sea-floor character and sedimentary processes in the vicinity of Woods Hole, Massachusetts
Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: Open File Report
Issue_Identification: 2008-1004
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/2008/1004/
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010905
Ending_Date: 20071119
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Poppe and others, 2008
Source_Contribution:
This publication provides the source geophysical (backscatter and bathymetry) and bottom photographs and sediment samples for Woods Hole. Two 29-foot launches deployed from the NOAA Ship Whiting were used to acquire bathymetric and backscatter data during 2001. The bathymetric data were collected with a hull-mounted 240-kHz RESON 8101 shallow-water system aboard launch 1005. The sidescan-sonar data were acquired with a hull-mounted Klein T-5000 system operating at 455 kHz aboard launch 1014. Sediment samples and bottom photos were collected aboard the R/V Rafael with a modified Van Veen grab sampler and SEABOSS, respectively, in 2007.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Ackerman, S.D.
Originator: Pappal, A.L.
Originator: Huntley, E.C.
Originator: Blackwood, D.S.
Originator: Schwab, W.C.
Publication_Date: 2014
Title:
Geological Sampling Data and Benthic Biota Classification: Buzzards Bay and Vineyard Sound, Massachusetts
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:
Series_Name: Open File Report
Issue_Identification: 2014-1220
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: http://dx.doi.org/10.3133/ofr20141220
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20100909
Ending_Date: 20100914
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Ackerman and others, 2014
Source_Contribution:
This report provided high-resolution digital photographs of the Buzzards Bay seafloor. At each station, the USGS SEABOSS was towed approximately one meter off the bottom at speeds of less than one knot. Because the recorded position is actually the position of the GPS antenna on the survey vessel, not the SEABOSS sampler, the estimated horizontal accuracy of the sample location is ± 30 meters (m). Photographs were obtained using a Konica-Minolta DiMAGE A2 digital still camera, and continuous video was collected from a Kongsberg Simrad OE1365 high-resolution color video camera, usually for 5 to 15 minutes. These data were important in defining rocky zones were sediment samples do not exist.
Process_Step:
Process_Description:
The texture and spatial distribution of sea-floor sediment were qualitatively-analyzed in ArcGIS using several input data sources (listed in the source contribution), including acoustic backscatter, bathymetry, seismic-reflection profile interpretations, bottom photographs, and sediment samples. In order to create the interpretation (with ArcMap version 9.3.1). Then physiographic shell zone polygons were created using the polygon drawing tool. In general, polygon editing was done at scales between 1:5,000 and 1:20,000 depending on the size of the traced feature and the resolution of the source data. Backscatter intensity data (available at 1 m resolution) was the first input. Changes in backscatter amplitude were digitized to outline possible changes in seafloor texture based on acoustic return. Areas of high backscatter (light colors) have strong acoustic reflections and suggests boulders, gravels, and generally coarse seafloor sediments. Low-backscatter areas (dark colors) have weak acoustic reflections and are generally characterized by finer grained material such as muds and fine sands; however, high concentrations of carbonate shells on the sea floor appear as high-backscatter areas. Polygons were drawn only where bottom photographs confirmed high concentrations of shells on the sea floor.
Source_Used_Citation_Abbreviation: All
Process_Date: 20130419
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David S. Foster
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-5488700 x2271
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dfoster@usgs.gov
Process_Step:
Process_Description:
The graphic polygons were converted to a shapefile using XTools Pro (version 7.1) Feature Conversions, Convert Graphics to Shapes. A new field was created in the shapefile called 'Pzone_name'. The attribute value "Shells" was added to the field Pzone_name. Area in square kilometers was defined using the calculate geometry function from the attribute table using the data frame projection (UTM Zone 19N, WGS84).
Process_Date: 2013
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David S. Foster
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2271
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dfoster@usgs.gov
Process_Step:
Process_Description:
The shapefile and the polygons were reprojected from UTM Zone 19N, WGS84 to GCS WGS84.
Process_Date: 2013
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David S. Foster
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2271
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dfoster@usgs.gov
Process_Step:
Process_Description:
Edits to the metadata were made to fix any errors that MP v 2.9.32 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Empty fields were deleted. Links to the data were fixed. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.
Process_Date: 20160512
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description: USGS Thesaurus keywords added to the keyword section.
Process_Date: 20180720
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description: Crossref DOI link was added as the first link in the metadata.
Process_Date: 20191118
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20200908
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
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: 6
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: BuzzardsBay_ShellZones
Entity_Type_Definition: Physiographic shell zones shapefile for Buzzards Bay
Entity_Type_Definition_Source: U.S. Geological Survey
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: Pzone_name
Attribute_Definition:
Areas mapped physiographic shell zones where high concentrations of shells were observed in bottom photographs and areas of high acoustic backscatter.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Shells
Enumerated_Domain_Value_Definition:
Shell Zone areas have significant coverage of carbonate shells. For Buzzards Bay, shell zones were mapped where high densities of slipper shells (Crepidula fornicata) cover the seafloor. These zones are primarily mapped by identifying high acoustic backscatter in areas where surficial sediments are fine grained and verified with bottom photographs. Areas identified include the central Buzzards Bay basin near Quicks Hole, outside of Red Brook Harbor, within and around bathymetric channels north of Penikese Island. Other areas of high concentrations of shell material likely exist but are not identifiable without bottom photographs to verify these areas.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Area
Attribute_Definition:
Area of feature in kilometers squared based on UTM, Zone 19, WGS84
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.040702
Range_Domain_Maximum: 7.83683
Attribute_Units_of_Measure: square kilometers
Attribute_Measurement_Resolution: 0.00001
Overview_Description:
Entity_and_Attribute_Overview:
Shell Zones (SZ) areas have significant coverage of carbonate shells. For Buzzards Bay, shell zones were mapped where high densities of slipper shells (Crepidula fornicata) cover the sea floor. These zones are primarily mapped by identifying high acoustic backscatter in areas where surficial sediments are fine grained and verified with bottom photographs. Areas identified include the central Buzzards Bay basin near Quicks Hole, outside of Red Brook Harbor, within and around bathymetric channels north of Penikese Island. Other areas of high concentrations of shell material likely exist but are not identifiable without bottom photographs to map these areas. The Shell Zones identified cover 14.8 km2, which is 2% of the Buzzards Bay sea floor by area. Water depths range from 4 to 43 m with a mean depth of 16 m.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: David S. Foster
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 x2271
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dfoster@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey 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: Shapefile
Format_Version_Number: ArcMap 9.3.1
Format_Specification: Esri Polygon Shapefile
Format_Information_Content:
WinZip version 14.5 file contains qualitatively derived polygons that define sea floor physiographic zones for Buzzards Bay, MA and the associated metadata
File_Decompression_Technique: WinZip or pkUnzip
Transfer_Size: 0.5
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data can be downloaded via the World Wide Web (WWW)
Fees: None
Technical_Prerequisites:
These data are available in Environmental Systems Research Institute (Esri) shapefile format. The user must have software capable of importing and processing this data type.
Metadata_Reference_Information:
Metadata_Date: 20200908
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: David S. Foster
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 x2271
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: dfoster@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_Access_Constraints: None
Metadata_Use_Constraints: None

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