Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2014 Title: Sound velocity profile locations, images, and processed text collected by the U.S. Geological Survey in the vicinity of Muskeget Channel, MA, 2010 (Geographic, WGS 84, Esri Shapefile, PNG images, and text files) Edition: 1.0 Geospatial_Data_Presentation_Form: raster and vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1258 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: http://pubs.usgs.gov/of/2012/1258/GIS_catalog/svps/svp_data.zip Larger_Work_Citation: Citation_Information: Originator: Elizabeth A. Pendleton Originator: Jane F. Denny Originator: William W. Danforth Originator: Wayne E. Baldwin Publication_Date: 2014 Title: High-Resolution Swath Interferometric Data Collected within Muskeget Channel, Massachusetts Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1258 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2012/1258/ Originator: Barry J. Irwin Description: Abstract: These data were collected in a collaboration between the Woods Hole Oceanographic Institution and the U.S. Geological Survey (USGS). The primary objective of this program was to collect baseline bathymetry for Muskeget Channel, Massachusetts, and identify areas of morphologic change within and around the channel. Repeat surveys in select areas were collected one month apart to monitor change. These data were collected to support an assessment of the effect on sediment transport that a tidal instream energy conversion facility would have within Muskeget Channel. Accurate data and maps of sea-floor topography are important first steps in monitoring bedform migration, fish habitat, marine resources, and environmental changes due to natural or human impacts. The data include high-resolution bathymetry, acoustic-backscatter intensity, sound velocity in water, and navigation data. These data were collected during two surveys between October 2010 and November 2011 onboard the research vessel (RV) Rafael using an SEA Ltd. SwathPlus interferometric sonar (234 kilohertz). More information about the cruise can be found on the Woods Hole Coastal and Marine Science Center field activity Web page at Purpose: This dataset is used to display the raw data, profile image, and locations of sound velocity data collected during a USGS cruise within the vicinity of Muskeget Channel, MA. The information contained within the sound velocity profile is needed to adequately account for refraction artifacts that may be present within raw swath bathymetric data. This dataset can hyperlink to graphs of the sound velocity profile at each station location, as well as location in easting and northing (UTM, Zone 19N, WGS84, meters), time of day and date. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20101012 Single_Date/Time: Calendar_Date: 20101013 Single_Date/Time: Calendar_Date: 20101014 Single_Date/Time: Calendar_Date: 20101019 Single_Date/Time: Calendar_Date: 20101116 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.436390 East_Bounding_Coordinate: -70.410363 North_Bounding_Coordinate: 41.419526 South_Bounding_Coordinate: 41.308611 Lidar_Bounding_Coordinates: Left_Bounding_Coordinate: -70.436390 Right_Bounding_Coordinate: -70.410363 Bottom_Bounding_Coordinate: 41.308611 Top_Bounding_Coordinate: 41.419526 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: SVP Theme_Keyword: Applied Acoustics SV plus v2 Theme_Keyword: sound velocity profile Theme_Keyword: Esri shapefile Theme_Keyword: R/V Rafael Theme_Keyword: WHCMSC field activity serial number 2010-072-FA Theme_Keyword: speed of sound Theme_Keyword: PNG image Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and coastal Theme_Keyword: oceans and estuaries Theme_Keyword: location Theme_Keyword: oceans Theme_Keyword: environment Place: Place_Keyword_Thesaurus: General Place_Keyword: North America Place_Keyword: Atlantic Ocean Place_Keyword: Massachusetts Place_Keyword: United States Place_Keyword: Muskeget Channel Place_Keyword: Vineyard Sound Place_Keyword: Martha's Vineyard Place_Keyword: Nantucket Sound Place_Keyword: Chappaquiddick Island Place_Keyword: Edgartown Place_Keyword: Mutton Shoal Place_Keyword: Muskeget Island Place_Keyword: Nantucket Island Place_Keyword: Tuckernuck Island Place_Keyword: Wasque Point Place_Keyword: Cape Poge Place_Keyword: Katama Bay Place_Keyword: Hawes Shoal Place_Keyword: Norton Shoal Place_Keyword: Bass Ledge Place_Keyword: Shovelful Shoal Place_Keyword: Wasque Shoal Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2012/1258/GIS_catalog/svps/svp_thumb.png Browse_Graphic_File_Description: Woods Hole Coastal and Marine Science Center sound velocity profile locations within Muskeget Channel, MA Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: Microsoft Windows 7 Enterprise Service Pack 1; ArcGIS Desktop 9.3 Service Pack 1; Build 1850 Cross_Reference: 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: Moser, M.S. Originator: Glomb, K.A. Publication_Date: 2010 Title: Geological Interpretation of the Sea Floor Offshore of Edgartown, Massachusetts Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Open-File Report Issue_Identification: 2009-1001 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2009/1001/ Cross_Reference: Citation_Information: Originator: Denny, J.F. Originator: Danforth, W.W. Originator: Foster, D.S. Originator: Sherwood, C.R. Publication_Date: 2009 Title: Geophysical Data Collected off the South Shore of Martha's Vineyard, Massachusetts Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1288 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2008/1288/ Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2012/1058/GIS_catalog/svps/svp_image.png Browse_Graphic_File_Description: Woods Hole Coastal and Marine Science Center sound velocity profile image within Muskeget Channel, MA Browse_Graphic_File_Type: PNG Data_Quality_Information: Logical_Consistency_Report: All sound velocity profiles were acquired with the same instrument; an Applied Microsystems SV plus v2. Completeness_Report: All sound velocity profiles collected during 2010-072-FA are included here as text, images, and a shapefile of the locations. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Differential Global Positioning System (DGPS) navigation data were acquired with a Communications Systems International (CSI), Inc. LGBX Pro receiver and recorded with HYPACK (www.hypack.com). The CSI received positions from a DGPS antenna located on the port, aft roof of the R/V Rafael cabin. Ship location was used for the sound velocity deployments. The SV plus v2 sound velocity profiler was hand deployed. Once the system reached bottom, positions were read from HYPACK and stored in the survey log. DGPS accuracy is 1 to 3 meters, depending on the distance from a US Coast Guard coastal repeater station. However, offsets from the location of hand-deployment and the DGPS antenna were not measured, and the ship is allowed to drift during deployment which can last several minutes depending on water depth. The horizontal accuracy of the sound velocity locations is considered to be +/- 50 meters. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Water depth of the sound velocity profile location is recorded from the fathometer. Assumed vertical accuracy of the shipboard fathometer on the R/V Rafael is about 0.25 meters. However, vessel drift during SVP deployment and recovery could add an additional meters of change in water depth at the location of deployment. Water depth recorded in the shapefile attribute field should be considered an approximation of water depth at the location of SVP deployment. Water depth in the sound velocity profiles is extracted from the recorded sound velocity profile after recovery. Depth (as pressure in dbars or meters) is recorded as the sound velocity profiler is lowered through the water column and downloaded after the instrument is recovered. Data are stored in ASCII text files. Depth values in the profile text and images should be accurate to within 1 meter. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20101012 Single_Date/Time: Calendar_Date: 20101013 Single_Date/Time: Calendar_Date: 20101014 Single_Date/Time: Calendar_Date: 20101019 Single_Date/Time: Calendar_Date: 20101116 Source_Currentness_Reference: ground condition Source_Contribution: Sound velocity profiles are acquired in order to measure the speed of sound in the water column during survey operations. This information is used to help correct any refraction artifacts that may be present within the swath bathymetric data due to unaccounted for changes in the speed of sound throughout the water column. Source_Citation_Abbreviation: USGS Process_Step: Process_Description: Profiles were collected at least once during each survey day, and multiple times per day when the data suggested significant stratification within the water column. Sound velocity casts were collected using an Applied Microsystems SV Plus v2 instrument (see for details). At each station, the SV plus 2 was hand deployed and slowly lowered to the seafloor. The SV plus v2 was monitored by a member of the science party and as the instrument made contact with the seafloor, the position (i.e. location) and depth (based on fathometer) was recorded in the lab using HYPACK navigation software. The position was then manually recorded within the cruise log and SWATHplus acquisition software. Upon recovery, the SV plus was connected to an onboard computer via serial port in order to download data using the SV plus v2 communications software, SmartTalk. Raw SVP data (text format) were edited using awk to remove the header information and remove data columns except water depth (pressure) and speed of sound Process_Date: 2007 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton 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 Contact_Voice_Telephone: (508) 548-8700x2259 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: The data were then exported in text format and imported to MATLAB (version R2011a). Graphs of the sound velocity profile (Pressure vs. speed of sound) at each station were created within MATLAB and exported as *.png files. A MATLAB script is included in the svp_data.zip file that creates PNG image profiles from the sound velocity text files. Process_Date: 2013 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton 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 Contact_Voice_Telephone: (508) 548-8700x2259 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: The location of each sound velocity profiles recorded in the survey log in eastings and northings (UTM, Zone 19N, meters, WGS84) was saved to a comma-separated value file (*.txt) along with station number, water depth at station, julian day and time, and survey id. The comma-separated text file was then imported to ArcMap 9.3 using 'Add XY data' and saved as points (UTM WGS84 Zone 19N) in the Esri shapefile format. Finally, the data were reprojected from UTM Zone 19N, WGS84 to GCS WGS84 using ArcToolbox Process_Date: 2013 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton 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 Contact_Voice_Telephone: (508) 548-8700 x2259 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: ependleton@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: Entity point Point_and_Vector_Object_Count: 11 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Geographic: Geographic_Coordinate_Units: Decimal degrees Latitude_Resolution: 0.000000 Longitude_Resolution: 0.000000 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Local surface Depth_Resolution: 0.1 Depth_Distance_Units: meters Depth_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: XYsvp_locs Entity_Type_Definition: Sound velocity profile locations 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: x Attribute_Definition: Easting coordinate in UTM Zone 19 meters, WGS84 Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 379775.1 Range_Domain_Maximum: 382000 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: y Attribute_Definition: Northing coordinate in UTM Zone 19 meters, WGS84 Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4574011.5 Range_Domain_Maximum: 4586325.6 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: z Attribute_Definition: depth of water at profile location based on fathometer reading in HYPACK. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6.5 Range_Domain_Maximum: 20 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.1 Attribute: Attribute_Label: cast Attribute_Definition: Name of velocity profile used to distinguish between casts. Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: Sequential numbers used to distinguish sound velocity casts. Attribute: Attribute_Label: jd Attribute_Definition: Julian day data were collected (Julian day is the integer number representing the interval of time in days since January 1 of the year) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 214 Range_Domain_Maximum: 341 Attribute_Units_of_Measure: day Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: UTC Attribute_Definition: Coordinated Universal Time of sound velocity cast (in the format: hhmm) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1225 Range_Domain_Maximum: 1959 Attribute_Units_of_Measure: time Attribute_Measurement_Resolution: minute Overview_Description: Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Entity_and_Attribute_Overview: Although the PNG images and text format data files do not have coordinates associated with the data themselves, they are related to the SVP locations (shapefile: XYsvp_locs.shp) by the cast number in the attribute table. Although the header was removed on the text files during processing, the first column of data is water depth in meters below the surface and column 2 is speed of sound in meters per second. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton 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 Contact_Voice_Telephone: (508) 548-8700x2259 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: ependleton@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 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: Shapefile Format_Version_Number: ArcGIS 9.3.1 Format_Information_Content: WinZip (v 14.5) file contains locations of sound velocity profiles collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center within the vicinity of Muskeget Channel MA and the associated metadata. Additional formats are also available in the zip file. File_Decompression_Technique: use WinZip or pkUnzip Transfer_Size: 72 KB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2012/1258/GIS_catalog/svps/svp_data.zip Network_Resource_Name: http://pubs.usgs.gov/of/2012/1258/html/ofr2012-1258_GIS_catalog.html Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Fees: none Digital_Form: Digital_Transfer_Information: Format_Name: Text Format_Information_Content: WinZip (v 14.5) file contains sound velocity profiles collected by the U.S. Geological Survey within the vicinity of Muskeget Channel, MA. It contains text files of each sound velocity cast. Additional formats are also available in the zip file. File_Decompression_Technique: use WinZip or pkUnzip Transfer_Size: 72 KB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2012/1258/GIS_catalog/svps/svp_data.zip Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Digital_Form: Digital_Transfer_Information: Format_Name: PNG Format_Information_Content: WinZip (v 14.5) file contains sound velocity profiles collected by the U.S. Geological Survey within the vicinity of Muskeget Channel, MA. It contains a PNG image of each profile plotted as depth versus velocity. Additional formats are also available in the zip file. File_Decompression_Technique: use WinZip or pkUnzip Transfer_Size: 72 KB Digital_Transfer_Option: Online_Option: Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2012/1258/GIS_catalog/svps/svp_data.zip Technical_Prerequisites: This zip file contains data available in Environmental Systems Research Institute (Esri) point shapefile format, PNG image format, and text. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the shapefile. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from Esri at www.esri.com. The PNG image data can be viewed with any image viewing software and text data that can be viewed with any text editor. Metadata_Reference_Information: Metadata_Date: 20140106 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth Pendleton 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 Contact_Voice_Telephone: (508) 548-8700x2259 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: ependleton@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 City: Woods Hole City: Woods Hole City: Woods Hole Country: US City: Woods Hole City: Woods Hole City: Woods Hole