Text files of the Wide Area Augmentation System (WAAS) navigation collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, HYPACK ASCII Text Files)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2014
Title:
Text files of the Wide Area Augmentation System (WAAS) navigation collected by the U.S. Geological Survey in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005 (Geographic, WGS 84, HYPACK ASCII Text Files)
Edition: 1.0
Geospatial_Data_Presentation_Form: text data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F71N7Z4H
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/10.5066/F71N7Z4H
Online_Linkage: Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Denny, J.F.
Originator: Danforth, W.W.
Originator: Worley, C.R.
Originator: Irwin, B.J.
Publication_Date: 2014
Title:
High-resolution geophysical and sample data collected in Moultonborough Bay, Lake Winnipesaukee, New Hampshire in 2005, USGS Field Activity 2005-004-FA
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F71N7Z4H
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F71N7Z4H
Description:
Abstract:
In freshwater bodies of New Hampshire, the most problematic aquatic invasive plant species is Myriophyllum heterophyllum or variable leaf water-milfoil. Once established, variable leaf water-milfoil forms dense beds that can alter the limnologic characteristics of a waterbody, impacting natural lacustrine communities and their habitats. Variable leaf water-milfoil infestations also disrupt recreational uses of waterbodies and have negatively affected swimming, boating, fishing, and property values in and around several lakes and ponds in New Hampshire.
In 1965, Moultonborough Bay, Lake Winnipesaukee became the first waterbody in New Hampshire where variable leaf water-milfoil was observed. Variable leaf water-milfoil is native to the Southeastern and Midwestern areas of the United States where more alkaline waters appear to limit the growth of this plant. Outside its native range, however, it adapts well to the relatively acidic, low-alkalinity, and nutrient-poor conditions of oligotrophic lakes and bays similar to Moultonborough Bay.
In 2005, the New Hampshire Department of Environmental Services (NHDES) collaborated with the U.S. Geological Survey to investigate the distribution (presence and density) of variable leaf water-milfoil in Moultonborough Bay. This study utilized geophysical systems and conventional water-quality measurements to identify lake-floor environments that may provide suitable habitat for the establishment and growth of variable leaf water-milfoil. The results of the study are intended to assist resource managers in federal and state agencies by providing methods for detecting variable leaf water-milfoil and for identifying areas susceptible to infestation. Ultimately, this information may lead to early detection, prevention, and more effective mitigation strategies.
Field activity information for this cruise is available on-line through the U.S. Geological Survey Coastal and Marine Geoscience Data System https://cmgds.marine.usgs.gov/fan_info.php?fa=2005-004-FA.
Purpose:
These data are supplied to provide the raw navigation collected by a LGBX Pro receiver and logged using HYPACK, Inc. navigation software (www.hypack.com) during USGS field activity 2005-004-FA.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050725
Ending_Date: 20050729
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.390517
East_Bounding_Coordinate: -71.361103
North_Bounding_Coordinate: 43.728543
South_Bounding_Coordinate: 43.710999
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
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: Marine Geology
Theme_Keyword: field activity number 2005-004-FA
Theme_Keyword: USGS CMGP InfoBank ID R-1-05-NH
Theme_Keyword: field activity number 05004
Theme_Keyword: Navigation
Theme_Keyword: Hypack
Theme_Keyword: LGBX Pro Receiver
Theme_Keyword: Wide Area Augmentation System
Theme_Keyword: WAAS
Theme_Keyword: R/V Rafael
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: inlandWaters
Theme_Keyword: location
Theme_Keyword: elevation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: New Hampshire
Place_Keyword: Lake Winnipesaukee
Place_Keyword: Moultonborough Bay
Access_Constraints: None
Use_Constraints:
Data are not to be used for navigation. 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 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: Massachusetts
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
Native_Data_Set_Environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.1850
Cross_Reference:
Citation_Information:
Originator: Denise M. Argue
Originator: Richard G. Kiah
Originator: Jane F. Denny
Originator: Jeffrey R. Deacon
Originator: William W. Danforth
Originator: Craig M. Johnston
Originator: Amy P. Smagula
Publication_Date: 2007
Title:
Relation of Lake-Floor Characteristics to the Distribution of Variable Leaf Water-Milfoil in Moultonborough Bay, Lake Winnipesaukee, New Hampshire, 2005
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Scientific Investigations Report
Issue_Identification: 2007-5125
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/sir/2007/5125/
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. The line numbers represented in the HYPACK files do not necessarily correspond to the sonar, bathymetry and seismic line numbers.
Completeness_Report:
These files represent all of the raw navigation recorded by the HYPACK software during USGS field activity 2005-004-FA.
Note: No LOG files exist for JD208 and JD209.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigation was acquired with Wide Area Augmentation System ( WAAS), which is accurate to + or - 1 to 2 meters, horizontally. Navigation data were acquired with a LGBX Pro receiver and logged to Hypack acquisition software.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The Wide Area Augmentation System (WAAS) navigation was used to record vertical positioning of bathymetric soundings during data acquisition. WAAS is a GPS-based navigation system providing precision guidance to aircraft and provides vertical accuracies of + or - 1.5 meters. Higher precision vertical positioning (for example, RTK-navigation) was not available during this survey effort.
Absolute water level values are reported as meters and referenced to Mean Lake Level, which is defined to be 504.32 meters above Mean Sea Level (NGVD29). Mean Lake Level measured during the USGS geophysical survey (July 24 - July 30, 2005) averaged 4 feet above Mean Lake Level as reported by the New Hampshire Department of Environmental Services (http://des.nh.gov/index.htm). This value (4 feet (1.3 meters)) is within the vertical accuracy of the survey. Therefore no additional offsets were applied to the data in order to reference to Mean Lake Level.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: Raw Hypack Navigation Data
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20050725
Ending_Date: 20050728
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: none
Source_Contribution:
Raw navigation data were saved in HYPACK format (http://www.hypack.com), version 4.3. 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 navigation files were transferred from the navigation acquisition computer to a data server for accessibility and archival.
The raw HYPACK navigation files are stored in separate directories indicating the acquisition Julian Day (JD206 through JD209), corresponding to July 25 - July 28, 2005. The filenames in each folder are in the format of linenumber_starttime.julianday. For example, filename 004_1434.207 represents HYPACK line number 004, start time 1434 and Julian Day 207. Times are recorded in UTC (Coordinate Universal Time).
Filenames with the following format, 046A2028.206, indicate a rerun of a specific line. For example, 046A2028.206 represents HYPACK line number 46, 'A' signifies a rerun of line 46, 2028 is the start time (HHMM) and 206 is the Julian day.
Filenames with the following format 25_1.206 represents planned line number 25_1 on Julian Day 206. There is no start time listed in the filenames for these files. An 'A' in the filename signifies a rerun of a specific line. For example, 25_1A.206 is a rerun of line 25_1 on Julian Day 206.
Julian Days (205, 206 and 207) directory also contains a LOG file that lists the files recorded during that Julian day.
Process_Date: 2005
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: Massachusetts
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Process_Step:
Process_Description:
The online links to the data were updated to reflect the new server hosting the data. Additionally, other small edits could be made to the metadata, such as modifying http to https where appropriate. The metadata date (but not the metadata creator) was edited to reflect the date of these changes.
Process_Date: 20170406
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
Geodetic_Model:
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:
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: Indicates that lines collected with device designation 0 are referencing Furuno single-beam echo sounder
OFF: device offsets (none used during this data collection) The number following OFF indicates which device
DEV 1: Indicated that the lines collected with device designation 1 are using DGPS/WAAS receiver (CSI LGBX Pro)
LIN 2: planned line data follows
PTS: planned line waypoints (eastings and northings, UTM, zone 19N, meters)
LBP: planned line begin point (easting and northings, UTM zone 19N, meters)
LNN X: planned line name, where X is the line number
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 (e.g. 1 for Ashtech receiver) 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.
EC1: echo sounding (singe frequency). Format EC1 dn t rd, where dn=device number, t=time tag (seconds past midnight), rd=raw depth (meters).
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: Fix (event) mark. Format FIX vn, where n=FIX format version number, Always 2nd record in file.
The (National Marine Electronics Association) NMEA strings $GPGGA, $GPVTG, and $GPZDA 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 where UTC Time = 163052 Latitude = 4118.964217 N, Longitude = 7036.966471 W, Fix Quality = 4 (RTK), Number of satellites = 10, HDOP = 00.9 relative accuracy of horizontal position, Altitude = 5.332 meters above mean sea leve,l 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, mag=magnetic course made good over ground in degrees, M=magnetic, grsp=ground speed, N=Knots, grdp=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, Checksum = *28
$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 where UTC day = 09, UTC month = 08, UTC year = 200,7 Local zone hours = null, Local zone minutes = null, Checksum = *60
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
Distribution_Information:
Distributor:
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: Massachusetts
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Resource_Description:
The file 2005-004-FA_hypack.zip contains the raw HYPACK navigation files and the FGDC CSDGM metadata in the following formats: XML, HTML, FAQ and text.
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: 1.0
Format_Specification: HYPACK ASCII Text Files
Format_Information_Content:
Zip file containing the raw hypack navigation from the Moultonborough Bay, Lake Winnipesaukee, New Hampshire survey area. This also includes associated metadata.
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 5.5
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions: Data can be downloaded via the Internet
Fees: none
Technical_Prerequisites:
This WinZip file contains the ANSI text HYPACK navigation files as well as the associated metadata files.
Metadata_Reference_Information:
Metadata_Date: 20170406
Metadata_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: Massachusetts
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2311
Contact_Facsimile_Telephone: 508-457-2310
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

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