Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2014 Title: Text files of the navigation logged with HYPACK Software during survey 2012-005-FA conducted in Baltimore, Washington, and Norfolk Canyons by the U.S. Geological Survey in 2012 Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2014-1118 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.3133/ofr20141118 Online_Linkage: https://pubs.usgs.gov/of/2014/1118/data/hypack_nav/HYPACK_2012-005-FA.zip Larger_Work_Citation: Citation_Information: Originator: Jeffrey Obelcz Originator: Daniel S. Brothers Originator: Uri S. ten Brink Originator: Jason D. Chaytor Originator: Charles R. Worley Originator: Eric M. Moore Publication_Date: 2014 Title: Chirp Seismic-Reflection Data From the Baltimore, Washington, and Norfolk Canyons, U.S. Mid-Atlantic Margin Series_Information: Series_Name: Open-File Report Issue_Identification: 2014-1118 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.3133/ofr20141118 Online_Linkage: https://pubs.usgs.gov/of/2014/1118/ Description: Abstract: A large number of high-resolution geophysical surveys between Cape Hatteras and Georges Bank have been conducted by federal, state, and academic institutions since the turn of the century. A major goal of these surveys is providing a continuous view of bathymetry and shallow stratigraphy at the shelf edge in order to assess levels of geological activity during the current sea level highstand. In 2012, chirp seismic-reflection data was collected by the U.S. Geologial Survey aboard the motor vessel Tiki XIV near three United States mid-Atlantic margin submarine canyons. These data can be used to further our understanding of passive continental margin processes during the Holocene, as well as providing valuable information regarding potential submarine geohazards. For more information on the U.S. Geological Survey involvement in this effort, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2012-005-FA. Purpose: To provide all of the navigation data files acquired during USGS survey 2012-005-FA in Baltimore, Washington, and Norfolk Canyons. This survey was conducted aboard the M/V Tiki XIV. HYPACK software was used to log these navigation data. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20120523 Beginning_Time: 1011 Ending_Date: 20120527 Ending_Time: 2355 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -74.818581 East_Bounding_Coordinate: -73.719947 North_Bounding_Coordinate: 38.326116 South_Bounding_Coordinate: 37.003238 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:afca6c5b-597b-4b17-af0f-18758053b7f3 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: navigation Theme_Keyword: Differential GPS Theme_Keyword: DGPS Theme_Keyword: HYPACK Theme_Keyword: field activity 2012-005-FA Theme_Keyword: field activity number 12005 Theme_Keyword: USGS CMG InfoBank ID T-05-12-MC Theme_Keyword: M/V Tiki XIV Theme_Keyword: M/V Tiki 14 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: navigational data Theme_Keyword: marine geophysics Place: Place_Keyword_Thesaurus: None Place_Keyword: North America Place_Keyword: United States Place_Keyword: Atlantic Ocean Place_Keyword: Maryland Place_Keyword: Virginia Place_Keyword: mid-Atlantic margin Place_Keyword: Baltimore Canyon Trough Place_Keyword: Baltimore Canyon Place_Keyword: Washington Canyon Place_Keyword: Norfolk Canyon Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2012 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 source of this information. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jeffrey Obelcz 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 x. 2245 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: jobelcz@usgs.gov Native_Data_Set_Environment: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.1850 Data_Quality_Information: Logical_Consistency_Report: These are the original files recorded by the HYPACK navigation software. These data were checked but no modifications or corrections have been made to these files. Completeness_Report: These files represent all the navigation recorded by the HYPACK software during USGS survey 2012-005-FA (which may also be referred to in the old field activity number style as 12005). This is the raw navigation data for survey data that was released in USGS Open-File Report (number placeholder) from Baltimore, Washington, and Norfolk Canyons. These data correspond with seismic data, but there appears to be a gap in the HYPACK navigation files on Julian day 144, 02:54 to 03:30. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Differential GPS (DGPS) data were collected during this survey using a Hemisphere receiver. These data were typically incorporated into the geophysical data during acquisition and logged to these HYPACK files in the event that post-processing the horizontal positional information was necessary. The DGPS positional accuracy is estimated to be within 20 m. No instrument layback was accounted for. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unpublished Material Title: raw HYPACK data Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20120523 Beginning_Time: 1011 Ending_Date: 20120527 Ending_Time: 2355 Source_Currentness_Reference: Information unavailable from original metadata, but assumed to be ground condition. Source_Citation_Abbreviation: Information unavailable from original metadata. Source_Contribution: Raw navigation data were saved in HYPACK format (). File name convention is LLL_TTTT.DDD, where LLL is the HYPACK line number, TTTT is the 24 hour time for the beginning of the file, and DDD is the Julian day (JD). Times were recorded in UTC (Coordinate Universal Time). Process_Step: Process_Description: Raw HYPACK (ver. 12.0.8.12) navigation files were transferred from the navigation acquisition computer to a centralized data server on the survey vessel for accessibility and archival. The raw HYPACK navigation files are stored in separate directories indicating the acquisition Julian Day. The filenames in each folder are usually in the format of linenumber_starttime.julianday. For example, a filename of 284_1816.151 would represent planned survey HYPACK line number 284, start time 1816 and Julian Day 151. Times are recorded in UTC (Coordinate Universal Time). For the majority of the survey, the HYPACK line names do not match the sequential numbering of the seismic lines, so the ship's log should be consulted when determining the relationship between a given HYPACK file and a seismic line. Process_Date: 2012 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jeffrey Obelcz 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 x. 2245 Contact_Electronic_Mail_Address: jobelcz@usgs.gov Process_Step: Process_Description: Edits to the metadata were made to fix any errors that MP v 2.9.36 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.). Added the DOI link as the first link in the identification section. Updated the link to the field activity. 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: 20171004 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: 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: 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: Point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The times recorded in the navigation file are in UTC. Keywords and the information they provide are as follows: > FTP: The first record located at the top of the header used to identify the file format. > VER: HYPACK version number > INF: General survey information filled in by the data technician. This typically contains the survey participants, the vessel name, other agencies involved with the survey, and the location of the survey. > FIL: Raw format file. > ELL: Ellipsoid information. The name of the ellipsoid followed by the semi-major axis in meters and the flattening ration. > PRO: Projection information record where TME indicates Transverse Mercator and the central meridian of -75 indicates UTM, zone 18. > DTM: Datum transformation record > GEO: Geoid model. Blank if not present. > HVU: Horizontal and Vertical Units (meters) > TND: Survey time and date in UTC. > OFF: Device Offsets in the format "OFF dn n1 n2 n3 n4 n5 n6 n7" where dn = device number; n1 = starboard or port offset (positive starboard); n2 = forward or aft offset (positive forward); n3 = height (antenna) or depth (transducer draft) offset; n4 = yaw rotation angle (positive for clockwise rotation); n5 = roll rotation angle (port side up is positive); n6 = pitch rotation angle (bow up is positive); n7 = device latency in seconds. > DEV 0: Indicates navigation recorded from a Differential GPS nav system. > DEV 1: This is the 512i chirp system depth/pressure sensor output passed to HYPACK. The units of the measurements are PSI. > DDT: Unknown String (This appears in the HYPACK manual (v. 12.0.8.12) for Device Driver setup under YSI_6600.dll but there is no further explanation. It seems like some kind of place holder for a custom device driver of a "SMI" (Special Marine Instrument)). > LIN 2: planned line data follows > PTS: planned line waypoints (easting and northing, UTM, zone 18N, meters) > LBP: planned line begin point (easting and northing, UTM zone 18N, meters) > LNN: planned line name > EOL: end of planned line > USR: user information > EOH: end of header. > The remaining elements have similar information in the first 3 columns. The first column will indicate the data type, the second column will indicate the device that recorded the information and the third column is the time tag (seconds past midnight) that is also sometimes referred to as the latency. The remaining information on each line is specific to the data type. Not all data types were recorded in each HYPACK file. > POS: Position of the ship in the format "POS dn t x y" where dn=device number; t=time tag (seconds past midnight); x=easting; y=northing. On this cruise these values are in UTM, Zone 19, WGS84. > QUA: Position quality information in the format "QUA dn t n m h sat mode" where dn=device number; t=time tag (seconds past midnight); n=number of values to follow; m = 10 minus HDOP (horizontal dilution of precision); h=HDOP; sat=number of satellites; mode=GPS mode (NMEA 0183 standard values) where 0 = fix not available or invalid; 1 = GPS fix; 2 = Differential GPS fix; 3 = GPS PPS Mode fix; 4 = RTK fix; and 5 = RTK Float. The last 3 values are decoded from GST message: standard deviation of latitude error (meters); standard deviation of longitude error (meters); Standard deviation of semi-major axis of error ellipsis (meters). > RAW: Position information in the format "RAW dn t n lat long alt utc" where dn=device number; t=time tag (seconds past midnight); n=number of values to follow; lat=raw latitude in the format ddmmmm.mmmm. To convert to ddmm.mmmmm multiply by 100; long=raw longitude in the format ddmmmm.mmmm. To convert to ddmm.mmmmm multiply by 100; alt=antenna altitude above ellipsoid (meters); utc=GPS time in the format HHMM. > CAP: Information captured by the HYPACK system sent from an external device in the format "CAP dn t val" where dn=device number; t=time tag (seconds past midnight); val=value passed by the instrument. In this case the value being passed is a pressure depth value in the units of PSI. For example: *000126.9844 = 26.9844 PSI (disregard the *0001). One would need to subtract atmospheric pressure (1 atm ~= 14.7 psi_ from this value to obtain the sensor PSI reading. > MSG: Message string in the format "MSG dn t message" where dn=device number; t=time tag (seconds past midnight); message is the message sent from the device. During survey 2012-005-FA there were several different messages were sent from the GPS systems: $GPGGA, $GPVTG, $GPRMC, and $GPZDA were standard throughout the survey. These message strings will be defined below. > GYR: Gyro data (heading) in the format "GYR dn t h" where dn=device number, t=time tag (seconds past midnight), h=heading. > FIX: events marked manually by the user in the format "FIX dn t event_number" where dn=device number (typically 99 as there is no device for manual events); t=time tag (seconds past midnight); event_number=event number such as 1,2,3,4. > MSG strings from GPS: > $GPGGA is GPS fix data in the format "$GPGGA, t, lat, lath, long, longh, q, sat, h, a, M, alt, M, t2, refcheck" where t=time in UTC in the format hhmmss.ss; lat=latitude in the format ddmm.mmmmmm; lath= N or S indicating the latitude hemisphere; long=longitude in the format dddmm.mmmmmm; longh=E or W indicating the longitude hemisphere; q=fix quality where 2 is a DGPS fix; sat=number of satellites; h=Horizontal Dilution of Precision (HDOP); a=Antenna altitude above mean sea level (geoid); M= units of antenna altitude in meters; alt=height of geoid above WGS84 ellipsoid; M=units of geoidal height in meters; t2=time since last DGPS update; refcheck=DGPS reference station id and the checksum. > $GPRMC is the recommended minimum specific GPS/TRANSIT data in the format "$GPRMC, hhmmss.ss, A, llll.ll, a, yyyyy.yy, a,x.x, x.x, ddmmyy, x.x, a, m*hh" where hhmmss.ss=UTC time fix, A=data staus (A=valid position, V=navigation receiver warning), llll.ll=latitude in the format ddmm.mmm, a=North/South, yyyyy.yy=longitude in the format dddmm.mmm, a=East/West, x.x=speed over ground in knots, x.x=track angle in degrees true, ddmmyy=UTC date of fix, x.x=magnetic variation degrees (Easterly variation subtracts from true course), a= E or W of magnetic varation, m= mode indicate (A=autonomous, D=Differential, E=Estimate, N=Data not valid), *hh=checksum. > $GPVTG is track made good and ground speed in the format "$GPVTG, t, T, m, M, n, N, k, K refcheck" where t=true course made good over ground, degrees; T indicates the previous number refers to true course; m=magnetic course made good over ground, dgrees; M indicates the previous number refers to magnetic course; n=ground speed; N indicates the previous number refers to Knots, k=ground speed; K indicates the previous number refers to Kilometers per hour, refcheck= checksum at the end of the string with the first character an *. > $GPZDA is UTC Date/Time and local time zone offset in the format "$GPZDA, hhmmss.ss,dd,mm,yyyy, xx, yy checksum" where hhmmss.ss= time in UTC; dd=UTC day; mm=UTC month; yyyy=UTC year; xx=offset to local time zone in hours; yy=offset to local time zone in minutes;checksum ***on this cruise the navigation computer was set to UTC time so the $GPZDA string indicates zero time offset. Entity_and_Attribute_Detail_Citation: The definitions of the HYPACK strings were acquired from the HYPACK software manual available from: . The definitions of the NMEA strings were obtained from: and . Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jeffrey Obelcz 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 x. 2245 Contact_Electronic_Mail_Address: jobelcz@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: ASCII Format_Version_Number: text file Format_Specification: text file Format_Information_Content: ASCII text files containing raw HYPACK data. This zip file also includes associated metadata. File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip Transfer_Size: 280 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/2014/1118/data/hypack_nav/HYPACK_2012-005-FA.zip Network_Resource_Name: https://pubs.usgs.gov/of/2014/1118/ofr2014-1118-data-catalog.html Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Fees: none Technical_Prerequisites: These data are available as ASCII text files. To utilize these data, the user must have software capable of viewing text files and parsing the HYPACK navigation strings. Metadata_Reference_Information: Metadata_Date: 20211116 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jeffrey Obelcz 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 x. 2245 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 metadata contact is no longer with the USGS or the email is otherwise invalid. Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time