RB_Nav: Raw navigation files logged with HYPACK Survey software during a geophysical survey conducted by the USGS within Red Brook Harbor, MA, 2009

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2012
Title:
RB_Nav: Raw navigation files logged with HYPACK Survey software during a geophysical survey conducted by the USGS within Red Brook Harbor, MA, 2009
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2010-1091
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://pubs.usgs.gov/of/2010/1091/GIS/navigation/RB_Nav.zip>
Online_Linkage: <https://pubs.usgs.gov/of/2010/1091/html/appendix1.html>
Larger_Work_Citation:
Citation_Information:
Originator: Aaron M. Turecek
Originator: William W. Danforth
Originator: Wayne E. Baldwin
Originator: Walter A. Barnhardt
Publication_Date: 2012
Title:
High-Resolution Geophysical Data Collected Within Red Brook Harbor, Buzzards Bay, Massachusetts, in 2009
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2010-1091
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://pubs.usgs.gov/of/2010/1091/>
Description:
Abstract:
These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center (WHCMSC). Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. Accurate data and maps of sea-floor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes due to natural or human impacts. The project is focused on the inshore waters (5-30 m deep) of Massachusetts between the New Hampshire border and Cape Cod Bay. Data collected for the mapping cooperative have been released in a series of USGS Open-File Reports (<http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html>).
This is the spatial dataset for the Red Brook Harbor survey area within Buzzards Bay, Massachusetts. These data are the results of a high-resolution geophysical (bathymetry, backscatter intensity, and seismic reflection) and ground validation (sediment samples and bottom photographs) survey, conducted in 2009.
In addition to inclusion within the USGS-CZM geologic mapping effort, these Red Brook Harbor data will be used to assess the shallow-water mapping capability of the geophysical systems deployed for this project, with an emphasis on identifying resolution benchmarks for the interferometric sonar system. (<http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2009-018-FA>)
Purpose:
This dataset contains raw HYPACK navigation files for a geophysical survey conducted by the U.S. Geological Survey in Red Brook Harbor, Massachusetts.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090928
Ending_Date: 20091117
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.678892
East_Bounding_Coordinate: -70.616102
North_Bounding_Coordinate: 41.692125
South_Bounding_Coordinate: 41.661905
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
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: Seafloor
Theme_Keyword: Marine Geology
Theme_Keyword: WHCMSC field activity serial number 09018
Theme_Keyword: WHCMSC Field Activity 2009-018-FA
Theme_Keyword: R/V Rafael
Theme_Keyword: navigation
Theme_Keyword: Ashtech Z-Surveyor Extreme
Theme_Keyword: Ashtech BR2G
Theme_Keyword: Real-time Kinematic
Theme_Keyword: RTK-GPS
Theme_Keyword: Differential GPS
Theme_Keyword: DGPS
Theme_Keyword: fathometer
Theme_Keyword: HYPACK
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: oceans and coastal
Theme_Keyword: oceans and estuaries
Theme_Keyword: location
Theme_Keyword: elevation
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: Atlantic Ocean
Place_Keyword: Massachusetts
Place_Keyword: Cape Cod
Place_Keyword: Buzzards Bay
Place_Keyword: Red Brook Harbor
Stratum:
Stratum_Keyword_Thesaurus: General
Stratum_Keyword: Seafloor
Stratum_Keyword: Surface
Temporal:
Temporal_Keyword_Thesaurus: General
Temporal_Keyword: 2009
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: Aaron Turecek
Contact_Organization: U.S. Geological Survey
Contact_Position: Geographer
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 x2230
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: aturecek@usgs.gov
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:
These are the original files recorded by the HYPACK navigation software. No additional checks or corrections have been made to these files. Surveying may not have occurred on consecutive days.
Completeness_Report:
These files represent all of the DGPS and RTK navigation recorded by HYPACK software during USGS survey 09018.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigation antennas (one Differential Global Positioning System (DGPS) and two Real-Time Kinematic (RTK) GPS antennas) were mounted on a horizontal crossbar atop the vertical transducer mount pole at the bow of the R/V Rafael. Position data from an Ashtech Surveyor RTK GPS, a Novatel DL-V3 RTK GPS, and a CSI LGBX Pro DGPS were recorded by HYPACK survey software to HYPACK raw files. RTK positional accuracy is sub-meter; DGPS accuracy is estimated to be approximately 2 meter.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Real-Time Kinematic (RTK) positions were collected with an Ashtech Z-Extreme receiver, and recorded by HYPACK Survey software to HYPACK raw files. RTK vertical positions were used to post-process tidal corrections for bathymetry data. RTK positional accuracy is sub-meter.
Lineage:
Source_Information:
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20090928
Ending_Date: 20091117
Source_Currentness_Reference: ground condition
Source_Contribution:
Raw navigation data were saved in HYPACK format (<http://www.hypack.com>). File name convention is LLL_TTTT.DDD, where LLL is the HYPACK line number, TTTT is the 24 hour time (UTC) for the beginning of the file, and DDD is the Julian day. Times in the file were recorded in UTC (Coordinate Universal Time).
Process_Step:
Process_Description:
RTK and DGPS positions were recorded to raw files by HYPACK Survey software. Filenames are in the format of linenumber_starttime.julianday. For example, filename 017_1455.150 represents HYPACK line number 017, start time 1455 and Julian Day 150. Times are recorded in UTC (Coordinate Universal Time).
Process_Date: 2009
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Aaron Turecek
Contact_Organization: U.S. Geological Survey
Contact_Position: Geographer
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 x2230
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: aturecek@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: String
Point_and_Vector_Object_Count: 203
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:
Overview_Description:
Entity_and_Attribute_Overview:
Not all attributes are present in each navigation file. The following list explains the attributes that may be present in each HYPACK navigation file. GPS receivers were recorded as devices 0, 1 and 3. Tide correction values from device 3 (Novatel DL-V3 RTK GPS) were used to tide correct bathymetry data during post-processing. Device 0 (Ashtech Surveyor RTK GPS) data was not recorded to nav files during sediment sampling operations on julian days 320 and 321 (11/16/2009 and 11/17/2009). The times recorded in the navigation file are in UTC (Coordinate Universal Time). 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. The three numbers at the end refer to initial tide correction at start-of-line, initial draft correction at start-of-line and sound velocity from the navigation parameters.
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: Project information record where TME indicates Transverse Mercator and the central meridian of -69 indicates UTM, zone 19.
DTM: Datum transformation record
GEO: Geoid model. Blank if not present.
HVU: Horizontal and Vertical Units (meters).
TND: Survey time and date in UTC.
DEV 0: RTK receiver (Ashtech Surveyor RTK GPS).
OFF 0: Device 0 offsets. Format for value is: OFF dn n1 n2 n3 n4 n5 n6 n7, where dn=device number; n1=starboard/port offset (starboard is positive, port is negative); n2=forward/aft offset (forward is positive, aft is negative); n3=height of antenna or depth of transducer draft (always positive); n4=yaw rotation angle (clockwise rotation is positive); n5=roll rotation angle (port side up is positive); n6=pitch rotation angle (bow up is positive); n7=device latency in seconds.
DEV 1: DGPS receiver (CSI LGBX Pro DGPS). OFF 1: Device 1 offsets. Format for value is: OFF dn n1 n2 n3 n4 n5 n6 n7, where dn=device number; n1=starboard/port offset (starboard is positive, port is negative); n2=forward/aft offset (forward is positive, aft is negative); n3=height of antenna or depth of transducer draft (always positive); n4=yaw rotation angle (clockwise rotation is positive); n5=roll rotation angle (port side up is positive); n6=pitch rotation angle (bow up is positive); n7=device latency in seconds.
DEV 2: Disabled
DEV 3: RTK Tides (Novatel DL-V3 RTK GPS). OFF 3: Device 3 offsets. Format for value is: OFF dn n1 n2 n3 n4 n5 n6 n7, where dn=device number; n1=starboard/port offset (starboard is positive, port is negative); n2=forward/aft offset (forward is positive, aft is negative); n3=height of antenna or depth of transducer draft (always positive); n4=yaw rotation angle (clockwise rotation is positive); n5=roll rotation angle (port side up is positive); n6=pitch rotation angle (bow up is positive); n7=device latency in seconds.
DEV 4: Disabled
DEV 5: Echosounder - NMEA string LIN: Planned line data follows in the format "LIN nw" where nw=number of waypoints PTS: Planned line waypoints in the format "PTS x y" where x=waypoint easting; y=waypoint northing (UTM zone 19N, meters, WGS84 for this survey)
LBP: Planned line begin point in the format "LBP x y" where x=x grid position; y=y grid position (UTM zone 19N, meters, WGS84 for this survey) EOL: end of planned line
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.
GYR: Gyro Data (Heading). Format "GYR dn t h", where dn=device number, t=time tag (seconds past midnight), h=ship heading angle.
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. These message strings are defined further down in the NMEA definition section.
EC1: echo sounding (singe frequency). Format "EC1 dn t rd", where dn=device number, t=time tag (seconds past midnight), rd=raw depth.
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; 5=RTK float.
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 X 100; long=raw longitude X 100; alt=antenna altitude above ellipsoid (meters); utc=GPS time in the format HHMM.
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. These numbers are incremented by the software. TID: Tide correction in the format "TID dn t dc" where dn=device number; t=time tag (seconds past midnight); dc=draft correction. TID 3 (from Novatel DL-V3 RTK GPS receiver) was applied to bathy in post-processing
The (National Marine Electronics Association) NMEA strings $GPGGA, $GPVTG, $GPZDA and $SDDPT are stored in the HYPACK file. These are defined as follows:
$GPGGA is GPS fix data in the format "$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 hemisphere; q=fix quality where 0=fix not available or invalid; 1=GPS fix; 2=Differential GPS fix; 3=GPS PPS Mode fix; 4=RTK fix; 5=RTK float; 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.
Example: $GPGGA,163052.00,4118.964217,N,07036.966471,W,4,10,00.9,00005.332,M,-030.544,M,01,*57 UTC Time = 163052 Latitude = 4118.964217 N Longitude = 7036.966471 W Fix Quality = 4 Number of satellites = 10 HDOP = 00.9 relative accuracy of horizontal position Altitude = 5.332 meters above mean sea level Height of geoid above WGS84 ellipsoid = -30.554 meters Time since last update = 01 Checksum = *57.

$GPVTG is track made good and ground speed in the format "$GPCTG, true, T, mag, M, grsp, N, grdp, K, mode", where t=true course made good over ground in degrees, T= True, m=magnetic course made good over ground in degrees, M=magnetic, gdsp=ground speed, N=Knots, grsp=ground speed, K=Kilometers per hour, mode=Mode indicator (A=Autonomous, D=Differential, E=Estimated, N=Data not valid).
Example: $GPVTG,089.23,T,104.82,M,004.86,N,009.02,K,D*28 True course made good: 089.23 Magnetic course made good: 104.82 Ground speed (knots) = 4.86 Ground speed (kilometers) = 9.02 Mode=Differential
$GPZDA is UTC Date/Time and Local Time Zone Offset in the format "$GPZDA,hhmmss.ss,xx,xx,xxxx,xx,xx" where hhmmss.ss=UTC, xx=Day, 01 to 31, xx=month, 01 to 12, xxx=Year, xx=Local zone description, 00 to +/- 13 hours, xx=Local zone minutes description (same sign as hours), checksum.
Example: $GPZDA,163053.00,09,08,2007,,*60 UTC= 163053.00 UTC day = 09 UTC month = 08 UTC year = 2007 Local zone hours = null Local zone minutes = null Checksum = *60 $SDDPT is water depth relative to the transducer in meters in the format "$SDDPT, depth meters, offset *checksum" Example: $SDDPT, 3.71, 0.50*57 Depth in meters = 3.71 Offset from transducer: Positive value is distance from transducer to water line; Negative value is distance from transducer to keel.
Entity_and_Attribute_Detail_Citation:
The definitions of the HYPACK strings were acquired from the HYPACK software manual available from: <http://www.hypack.com/>. The definitions of the NMEA strings were obtained from: <http://home.mira.net/~gnb/gps/nmea.html>. The SDDPT definiteion was obtained from: <http://www.eye4software.com/products/gpstoolkit/nmea>
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Aaron Turecek
Contact_Organization: U.S. Geological Survey
Contact_Position: Geographer
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 x2230
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: aturecek@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: HYPACK
Format_Version_Number: 9.0.5.17
Format_Information_Content:
This WinZip file contains the raw HYPACK navigation files as well as the associated metadata files.
File_Decompression_Technique: Use Winzip or pkUnzip
Transfer_Size: 21.3 Mb
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/of/2010/1091/GIS/navigation/RB_Nav.zip>
Access_Instructions: Data can be downloaded via the World Wide Web (WWW)
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 4.75
Recording_Density_Units: Gbytes
Recording_Format: UDF
Fees: none
Technical_Prerequisites:
The user must have software capable of uncompressing the WinZip file, such as WinZip or pkUnzip.
Metadata_Reference_Information:
Metadata_Date: 20110909
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Aaron Turecek
Contact_Organization: U.S. Geological Survey
Contact_Position: Geographer
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 x2230
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: aturecek@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_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.6 on Tue Mar 20 16:33:39 2012