Online Links:
Online Links:
Value | Definition |
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EDT | Eastern Daylight Time. To derive EDT, subtract 4 hours from the UTC time. |
Range of values | |
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Minimum: | 42.15695 |
Maximum: | 42.42161 |
Units: | decimal degrees |
Range of values | |
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Minimum: | -70.45809 |
Maximum: | -70.13773 |
Units: | decimal degrees |
Value | Definition |
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SBNMS | Region: Stellwagen Bank National Marine Sanctuary |
GPS navigation log: Column A, vessel name, AUK, SBNMS research vessel; column B, field activity number; column C, date, UTC; column D, Julian Day, UTC; column E, study area time zone; column F, time, UTC (for Eastern Daylight Time subtract 4 hours); column G, latitude north, degrees and decimal minutes; column H longitude west, degrees and decimal minutes; column I, latitude north, decimal degrees; column J, longitude west, decimal degrees; column K, geographic region [abbreviations: D, degrees; H, hour; M, minute; S, second; EDT, Eastern Daylight Time; lat, latitude; lon, longitude; WHCMSC, USGS Woods Hole Coastal and Marine Science Center; SBNMS, Stellwagen Bank National Marine Sanctuary; UTC, coordinated universal time (Greenwich Mean Time, ZULU time); GPS, satellite-based Global Positioning System receiver]
The columns of data are the same as represented in the entity and attribute detail information.
The files with the same prefix name, but the CSV extension are exported from the Excel spreadsheet, minus the first two rows of information.
The *_raw.csv files are the original $GPGGA strings off the ship. The format of the columns of information are as follows:
$GPGGA, UTC time, latitude (DDMM.MMMM), latitude hemisphere, longitude (DDMM.MMMM), longitude hemisphere.
The first row in the *raw.csv file describes the file.
These navigation data are provided as an archive of the navigation data files acquired during the survey in the original collected format as well as in reformatted CSV and XLSX formats. The reformatted files add additional information, and most significantly provide that navigation in decimal degrees.
The format of the columns of information are as follows:
$GPGGA, UTC time, latitude (DDMM.MMMM), latitude hemisphere, longitude (DDMM.MMMM), longitude hemisphere.
The first row in each file describes the file. Person who carried out this activity:
latitude: (4211.9672-4200)/60+(42) to give 42.19945 decimal degrees
longitude: ((7043.2105-7000)/60) + 70)*-1 to give -70.72018 decimal degrees with negative for western hemisphere
Additional fields of information were added to the spreadsheet and are defined in the entity and attribute section, as well as within header information in each spreadsheet.
Are there legal restrictions on access or use of the data?Access_Constraints: None.
Use_Constraints: None.
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.
Data format: | The zip file contains the navigation in XLSX and CSV formats, along with the FGDC CSDGM metadata. in format XLSX (version Excel 2016) Size: 8 |
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Network links: |
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-044-FA/data/navigation/2017-044-FA_nav.zip https://doi.org/10.5066/P9IL0LLO https://cmgds.marine.usgs.gov/data/field-activity-data/2017-044-FA/ |
Data format: | The zip file contains the navigation in XLSX and CSV formats, along with the FGDC CSDGM metadata. in format CSV Size: 8 |
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Network links: |
https://cmgds.marine.usgs.gov/data/field-activity-data/2017-044-FA/data/navigation/2017-044-FA_nav.zip https://doi.org/10.5066/P9IL0LLO https://cmgds.marine.usgs.gov/data/field-activity-data/2017-044-FA/ |
The zip file contains data in XLSX and CSV formats. The user must have software capable of uncompressing the zip file and reading the data formats.