Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2009 Title: SVP: Location of sound velocity profiles collected by the U.S. Geological Survey off the southern shore of Martha's Vineyard, MA, 2007 (ESRI POINT SHAPEFILE) Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1288 Publication_Information: Publication_Place: Woods Hole Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2008/1288/GIS_catalog/Bathy/svp.zip Online_Linkage: http://pubs.usgs.gov/of/2008/1288/html/gis.html Larger_Work_Citation: 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 Edition: 1.0 Geospatial_Data_Presentation_Form: online Series_Information: Series_Name: Open-File Report Issue_Identification: 2008-1288 Publication_Information: Publication_Place: Woods Hole Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2008/1288/ Description: Abstract: The USGS Woods Hole Science Center conducted a nearshore geophysical survey offshore of the southern coast of Martha's Vineyard, in the vicinity of the Martha's Vineyard Coastal Observatory (MVCO) in August 2007. This mapping program was part of a larger research effort supporting the Office of Naval Research (ONR) Ripples Directed-Research Initiative (DRI) studies at MVCO by providing data collection and modeling. The geophysical data will be used to provide initial conditions for wave and circulation models for the study area. Ultimately, geophysical mapping, oceanographic measurements and modeling will help to improve our understanding of coastal sediment-transport processes. The geophysical mapping utilized a suite of high-resolution instrumentation to map the surficial sediment distribution, depth and sub-surface geology: dual-frequency 100/500 KHz sidescan-sonar system, 234-KHz interferometric sonar, and 500 Hz -12 KHz chirp sub-bottom profiler. The survey was conducted aboard the M/V Megan Miller August 9-13, 2007. The study area covers 35 square kilometers from about 0.2 km to 5-km offshore of the south shore of Martha's Vineyard, and ranges in depth from ~ 5 to 20 meters. Purpose: This dataset is used to display the location of sound velocity profiles collected during USGS Cruise 07011 off the southern shore of Martha's Vineyard, 2007. The information contained within the sound velocity profiles is needed to adequately account for refraction artifacts that may be present within raw swath bathymetric data. This dataset contains hyperlinks to graphs of the sound velocity profile within the water column at each station location, as well as location in easting and northing (UTM, Zone 19N, WGS84, meters), latitude, longitude, time of day and date. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070809 Ending_Date: 20070813 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.618758 East_Bounding_Coordinate: -70.511816 North_Bounding_Coordinate: 41.342546 South_Bounding_Coordinate: 41.305003 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Science Center Theme_Keyword: WHSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Field Activity Number 07011 Theme_Keyword: R/V Megan Miller Theme_Keyword: Sound Velocity Profiles Theme_Keyword: SVP Theme_Keyword: ESRI Point Shapefile Theme_Keyword: Applied Acoustics SV plus v2 Theme: Theme_Keyword_Thesaurus: ISO 19115 Theme_Keyword: oceans Theme_Keyword: oceans and estuaries Theme_Keyword: oceans and coastal Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: General Place_Keyword: North America Place_Keyword: Southeastern Massachusetts Place_Keyword: Martha's Vineyard Place_Keyword: Cape Cod Place_Keyword: Elizabeth Islands Place_Keyword: Atlantic Ocean Place_Keyword: United States Place_Keyword: Northeast United States Place_Keyword: Atlantic Ocean 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: Jane Denny 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) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2008/1288/GIS_catalog/Bathy/svp_650_sm.jpg Browse_Graphic_File_Description: Thumbnail image of the sound velocity profiles collected by the U.S. Geological Survey off the southern shore of Martha's Vineyard, 2007 Browse_Graphic_File_Type: JPEG Data_Set_Credit: U.S. Geological Survey Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850 Data_Quality_Information: Logical_Consistency_Report: All sound velocity profiles were acquired with the same instrument during the course of USGS Cruise 07011; an Applied Microsystems SV plus v2. Completeness_Report: All sound velocity profiles collected during USGS Cruise 07011 are included in this ESRI shapefile. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Real-Time Kinematic (RTK) navigation data were collected using an Ashtech Z-Extreme receiver, mounted on the SWATHplus sidemount and recorded using navigation software from HYPACK, Inc (http://www.hypack.com/new/). RTK provides accuracies on the order of 10s of centimeters (http://www.navcen.uscg.gov/). However, the horizontal and vertical offsets between the hand-winch used to deploy the SV plus v2 sound velocity profiler and the RTK antenna on the SWATHplus sidemount were not accounted for in determining the location of the sound velocity profiler. Thus, the horizontal accuracy of the sound velocity locations is considered to be +/- 10 meters. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Water depth of the sound velocity profile locations were acquired by reading the depth from the SWATHplus acquisition system. Precise depths are recorded within the sound velocity profile as it is lowered and recovered through the water column. Vertical and horizontal position of the SWATHplus system were acquired with Differential Global Positioning System (DGPS) navigation. DGPS data were acquired with the forward, or primary, Coda Octopus F180R Motion Reference Unit (MRU) DGPS antenna and transmitted via a network connection to the SWATHplus data collection software. The F180R MRU is part of the rigid sidemount used to deploy the SWATHplus bathymetric system, and is mounted on the bracket holding the SWATHplus transducers. The F180R MRU consists of 2 L1 antennas used for position and heading. The antennas are mounted on a rigid horizontal pole, 6.76 meters above the F180R MRU, offset in a forward/aft configuration (see 'source contribution' for a full description of the F180R). DGPS accuracy is 1 to 3 meters, depending on the distance from a US Coast Guard coastal repeater station (). However, offsets between the winch used to deploy the sound velocity profiler and the DGPS antenna were not recorded. Therefore, water depths provided are intended to give a general depth at the sound velocity profile location (within 1 meter). Lineage: Source_Information: Source_Citation: Citation_Information: Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070809 Ending_Date: 20070813 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 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. As such, the swath bathymetric acquisition is described here, as well as acquisition procedures for the sound velocity profiles. Swath bathymetric data were collected using an SEA Ltd SWATHplus 234-kHz Interferometric Bathymetric Sonar ( ) during survey operations. The SWATHplus system was mounted as a sidemount and positioned on the starboard side of the R/V Megan Miller. Line spacing varied from 40 meter in ~ 5 to 15 meter water depth to 70 meters in ~15 - 25 meter water depth. Data files were recorded by SEA software SWATHplus 3.05.19 in the SWATHplus SXR format. Data collection parameters are saved into a SWATHplus session file in SEA's SXS format that can be later used for data replay. Pitch, roll, heading, and heave information were recorded using a Coda Octopus F180R motion reference unit (MRU) (see: ) and transmitted via network connection to the SWATHplus data collection software. The MRU sensor was mounted directly above the SWATHplus transducers, thereby minimizing "lever arm" offsets which can lead to positioning and depth errors in the bathymetric data. The F180R series MRU uses two L1 antennas for position and heading accuracy. These were mounted directly above the MRU with an offset of 6.76 meters. The antennas are mounted on a rigid horizontal pole with a separation of 1 meter and are offset from the MRU in a forward/aft configuration. The forward offset of the primary antenna from the MRU is 0.5 meters, with no port/starboard offset. Sound Velocity Profiles (SVP): Fourteen sound velocity casts were collected at various intervals during the USGS cruise 07011 using an Applied Microsystems SV Plus v2 instrument (see for details). Sound velocity profiles (SVP) were generally collected at the eastern and western ends of the survey area, corresponding to the start and/or end of geophysical line data collection. This procedure was primarily followed to coordinate collection of SVP casts with the beginning or end of trackline. This was acceptable because only small variations in the speed of sound were noted throughout the survey area and negligible refraction artifacts were visible within the swath bathymetric data. Process_Step: Process_Description: Fourteen sound velocity casts were collected at various intervals during the USGS cruise 07011 using an Applied Microsystems SV Plus v2 instrument (see http://www.appliedmicrosystems.com/products/productDetails.aspx?id=1 for details). Sound velocity profiles (SVP) were generally collected at the eastern and western ends of the survey area, corresponding to the start and/or end of geophysical line data collection. This procedure was primarily followed to coordinate collection of SVP casts with the beginning or end of trackline. This was acceptable because only small variations in the speed of sound were noted throughout the survey area and negligible refraction artifacts were visible within the swath bathymetric data. At each pre-defined station (i.e. location), the SV plus v2 was slowly lowered to the seafloor using a small shipboard winch. 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) 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. Software: SV plus v2 SmartTalk (no version) Process_Date: 2007 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny 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) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: The data were then exported in comma-delimited text format and opened within Microsoft Excel. The files were saved in Microsoft Excel format (*.xls). Graphs of the sound velocity profile (Depth vs. speed of sound) at each station were created within Microsoft Excel and saved within the spreadsheet and as PDF files. The files were then opened using Adobe Photoshop CS3 and exported as JPG images. Software: Microsoft Excel 2004; Adobe Photoshop CS3 (10.0.1) Process_Date: 2007 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny 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) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: The location of each of the fourteen sound velocity profiles was stored in eastings and northings (UTM, Zone 19N, meters, WGS84) in a comma-separated value file (*.csv). This file was reformatted using an UNIX awk script and station number, water depth at station taken from the SWATHplus acquisition system at the time of deployment, time and date were added. Software: AWK (no version) Process_Date: 2009 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny 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) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: The comma-delimited text file was then imported to ArcMap 9.2. An event theme was created using Tools - Add XY Data. The projection was defined as UTM, Zone 19N, meters, WGS84. The event theme was then converted to a point shapefile. A hyperlink field was then added to the attribute table of the shapefile in order to link to JPG images of graphs depicting the sound velocity profile at each station. Software: ArcGIS 9.2 Process_Date: 2009 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny 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) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: The point shapefile was reprojected from UTM, Zone 19N, WGS84 meters to a Geographic Coordinate System (WGS84) using Arc Toolbox Projections and Transformations, Feature, Project. Software: ArcGIS 9.2 Process_Date: 2009 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane F. Denny 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 Country: USA Contact_Voice_Telephone: 508-548-8700 x 2311 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jdenny@usgs.gov Process_Step: Process_Description: Longitude and Latitude fields were added to the attribute table using XTools Pro 5.3 (Table Operations - Add X,Y,Z Coordinates). Software: ArcGIS 9.2 Process_Date: 2009 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane F. Denny 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 Country: USA Contact_Voice_Telephone: 508-458-8700 x 2311 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jdenny@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: 14 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: svp Entity_Type_Definition: ESRI Point Shapefile Entity_Type_Definition_Source: ESRI 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: Easting Attribute_Definition: Easting coordinate of navigation fix (UTM Zone 19N meters) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 364504 Range_Domain_Maximum: 373503 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Northing Attribute_Definition: Northing coordinate of navigation fix (UTM Zone 19N meters) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4573848 Range_Domain_Maximum: 4577889 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Cast Attribute_Definition: Station number of the sound velocity cast Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 13 Attribute_Units_of_Measure: incremental svp station identification Attribute: Attribute_Label: Depth Attribute_Definition: Water depth at station location read off the SWATHplus acquisition system and recorded in the cruise log Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 8.5 Range_Domain_Maximum: 22 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Hr Attribute_Definition: Time of SVP cast (hours; 24-hr clock, UTC) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 23 Attribute_Units_of_Measure: hour Attribute: Attribute_Label: Min Attribute_Definition: Time of SVP cast (minutes; 24-hr clock, UTC) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 60 Attribute_Units_of_Measure: minute Attribute: Attribute_Label: Sec Attribute_Definition: Time of SVP cast (seconds; 24-hr clock, UTC) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 60 Attribute_Units_of_Measure: second Attribute: Attribute_Label: Jday Attribute_Definition: Julian Day of data collection (UTC) Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 221 Range_Domain_Maximum: 225 Attribute_Units_of_Measure: Julian Day Attribute: Attribute_Label: Hyperlink Attribute_Definition: directory location of JPEG image depicting a graph of the SVP cast Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Unrepresentable_Domain: JPG image file depicting SVP profile for given station Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of SVP cast location, WGS84 Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -70.618758 Range_Domain_Maximum: -70.511816 Attribute_Units_of_Measure: Decimal Degrees Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of SVP cast location, WGS84 Attribute_Definition_Source: U.S. Geological Survey Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 41.305003 Range_Domain_Maximum: 41.342546 Attribute_Units_of_Measure: Decimal Degrees Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny 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) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@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: WinZip Format_Version_Number: 9.0 Format_Information_Content: WinZip file containing ESRI point shapefile and associated metadata for sound velocity profiles collected during USGS Open-File Report 2008-1288 File_Decompression_Technique: Use WinZip or pkUnzip Transfer_Size: 36 KB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2008/1288/GIS_catalog/Bathy/svp.zip Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Fees: none Technical_Prerequisites: This zip file contains data available in Environmental Systems Research Institute (ESRI) point shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. 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. Metadata_Reference_Information: Metadata_Date: 20091004 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jane Denny 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) 548-8700x2311 Contact_Facsimile_Telephone: 5084572310 Contact_Electronic_Mail_Address: jdenny@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 Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile