Metadata: Identification_Information: Citation: Citation_Information: Originator: Schwab, Bill Publication_Date: 1997 Title: Archive of Datasonics SIS-1000 Chirp Subbottom Data Collected During USGS Cruise DIAN 97011 Long Island, NY Inner Shelf -- Fire Island, NY, 5-26 May, 1997 Series_Information: Series_Name: Open-File Report Issue_Identification: 2000-242 Publication_Information: Publication_Place: Woods Hole, MA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Hill, J.C., Schwab, W.C., and Foster, D.S., 2000, Archive of Datasonic SIS-1000 chirp subbottom data collected during USGS Cruise DIAN 97011, Long Island, New York, inner shelf; Fire Island, New York, 5-26 May, 1997: U.S. Geological Survey Open-File Report 2000-242, https://doi.org/10.3133/ofr00242. Online_Linkage: https://doi.org/10.3133/ofr00242 Description: Abstract: This CD-ROM contains digital high resolution seismic reflection data collected during the USGS DIAN 97011 cruise. The coverage is the nearshore of Long Island, NY in the vicinity of Fire Island. The seismic-reflection data are stored as SEG-Y standard format that can be read and manipulated by most seismic-processing software. Much of the information specific to the data are contained in the headers of the SEG-Y format files. The file system format is ISO 9660 which can be read with DOS, Unix, and MAC operating systems with the appropriate CD-ROM driver software installed. Purpose: In 1995, the USGS Woods Hole Field Center, in Cooperation with the U.S. Army Corps of Engineers, began a program designed to map the seafloor offshore of the New York-New Jersey metropolitan area; the most heavily populated, and one of the most impacted coastal regions of the United States. The ultimate goal of this program is to provide an overall synthesis of the sea floor environment, including surficial sediment texture, subsurface geometry, and anthropogenic impact (e.g. ocean dumping, trawling, channel dredging), through the use and analysis of sidescan-sonar and subbottom mapping techniques. This regional synthesis will support a wide range of management decisions and will provide a basis for further process-oriented investigations. Supplemental_Information: For more information on the field activity associated with these data, see https://cmgds.marine.usgs.gov/fan_info.php?fan=1997-011-FA. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19970508 Ending_Date: 19970526 Currentness_Reference: ground condition Status: Progress: In work Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -73.53333 East_Bounding_Coordinate: -72.81667 North_Bounding_Coordinate: 40.78333 South_Bounding_Coordinate: 40.5 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:6beb39ba-b2e6-4f44-8a80-69cb751e8f13 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: seismic reflection Theme_Keyword: SEG-Y Theme_Keyword: Chirp Theme_Keyword: Datasonics SIS 1000 Theme_Keyword: ISO 9660 CD-ROM Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sub-bottom profiling Theme_Keyword: geospatial datasets Theme_Keyword: seismic reflection methods Theme_Keyword: marine geophysics Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: None Place_Keyword: Atlantic Ocean Place_Keyword: New York Place_Keyword: NY Place_Keyword: Long Island inner shelf Place_Keyword: Fire Island Access_Constraints: none Use_Constraints: none Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Schwab, Bill Contact_Organization: U.S. Geological Survey Contact_Position: Seafloor Mapping Group, Woods Hole Field Center Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road Quissett Campus City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: bschwab@usgs.gov Data_Set_Credit: Seafloor Mapping Group Native_Data_Set_Environment: SEG-Y Data_Quality_Information: Logical_Consistency_Report: The SEG-Y files were plotted onboard ship using SIOSEIS seismic processing software Completeness_Report: archive of SEG-Y format seismic data Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The ship was navigated with differential GPS Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 10 Horizontal_Positional_Accuracy_Explanation: DGPS is assumed to be accurate within 5-10 meters Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The vertical position was local sea level and there was no correction to a datum Lineage: Process_Step: Process_Description: The subbottom data were recorded on the ISIS data acquisition system in QMIPS format. Chirp subbottom channel extracted from raw QMIPS format sonar files and converted to 16-bit Int. SEG-Y format using the program QMIPSTOSEGY. The fish depth was recorded in two-way time (ms) in the delay field (byte 109) of the SEG-Y trace header. Process_Date: 199705 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Foster, David S. Contact_Organization: U.S. Geological Survey Contact_Position: Seafloor Mapping Project Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road Quissett Campus City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dfoster@usgs.gov Process_Step: Process_Description: The metadata from the Open-File report was edited to remove errors as well as update some information. Edits include updating the citation section with the OFR information, added supplemental information with link to the field activity page on CMGDS, change the use and access constraints to none, added the USGS Thesaurus and ISO 19115 Topic Category thesaurus, added keywords section with USGS persistent identifier as theme keyword, fixed information in the NAD83 horizontal coordinate system and the grid system, used a generic email address in metadata, updated digital transfer information, replaced distribution liability with FSP statement. Other blank fields were deleted. The metadata date (19970408), but not the contact (except email) was updated. The metadata available from a harvester may supersede metadata available from the publication. Compare the metadata dates to determine which metadata file is most recent. Process_Date: 20210816 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: Indirect_Spatial_Reference: Horizontal X and Y UTM coordinates for each shot location are located in the SEG-Y trace headers Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 18 Transverse_Mercator: Scale_Factor_at_Central_Meridian: .9997 Longitude_of_Central_Meridian: -75 Latitude_of_Projection_Origin: 0 False_Easting: 0 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 5 Ordinate_Resolution: 5 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257222101 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: assumed sea level Altitude_Resolution: 1 Altitude_Distance_Units: two-way travel time Altitude_Encoding_Method: Attribute values Depth_System_Definition: Depth_Datum_Name: local surface (sea level) Depth_Resolution: 1 Depth_Distance_Units: meters Depth_Encoding_Method: Attribute values Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The data were acquired using a Datasonics SIS 1000 chirp subbottom and sidescan-sonar system. Subbottom data were logged digitally with the ISIS acquisition system. in QMIPS format. SEG-Y data were checked for quality with SIOSEIS seismic processing software and are archived on this CD-ROM. The SEG-Y format is described in detail by Barry and others (1975). The files are in standard 16-bit integer SEG-Y format. The SEG-Y Entity_and_Attribute_Detail_Citation: Barry, K.M., Cavers, D.A., and Kneale, C.W., 1975, Recommended standards for digital tape formats, in Digital Tape Standards; Society of Exploration Geophysicists ["Recommended standards for digital tape formats" reprinted from Geophysics, v. 32, p. 1073 - 1084; v. 37, p. 36-44; v. 40, p. 344 - 352.] p. 22 - 30. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Soderberg, Nancy Contact_Organization: U.S. Geological Survey Contact_Position: Data Library Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road Quissett Campus City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: nsoderberg@usgs.gov Resource_Description: U.S. Geological Suvey Internal CD-ROM Data Archive Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: SEG-Y Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.3133/ofr00242 Offline_Option: Offline_Media: CD-ROM Recording_Format: ISO 9660 Compatibility_Information: UNIX, DOS, MAC Fees: none Metadata_Reference_Information: Metadata_Date: 20210816 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Foster, David Contact_Organization: U.S. Geological Survey Contact_Position: Seafloor Mapping Group Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Woods Hole Field Center 384 Woods Hole Road Quissett Campus City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Contact_Instructions: The metadata contact email address is a generic address in the event the contact person is no longer with the USGS. Metadata_Standard_Name: FGDC Content Standard Metadata_Standard_Version: 19940608 Metadata_Time_Convention: universal time