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2010 DATA

Track data

• Track data 2010 season, decimated >= 50 meter distance between positions (1 MByte)
• Track data 2010 season, raw data (19 MByte)
• Software to decimate navdata: hovercraft-decimate-navdata.py

Note: All time data in UTC.

UKOOA P1/90 Navdata

The UKOOA P1/90 format is described in this document.

Software to generate P1/90 UKOOA navdata file

Here is a Python script that generates P1/90 UKOOA files from GEODE log files. It uses an external library for the Lat/Long to UTM conversion.

• 2010_hovercraft_make_UKOOA.py

Follow these steps:

1. Make directory for each line
2. Put GEODE log file, above script and the module LatLongUTMconversion.py (download from http://www.pygps.org/#LatLongUTMconversion ) into this directory
3. Edit script:
   • Input, output file names
   • SP numbering
4. Windows: Open terminal (DOS) window, move to directory, execute script by writing:
   c:\Python26\python.exe Yermak2010_1.py > Yermak2010_1.QC.txt
   (assuming you are using Python ver 2.6, and that standard install directory is used)

UKOOA header example - edit according to line information:

H0100 SURVEY AREA               YERMAK PLATEAU, SVALBARD, NORWAY
H0101 SURVEY DETAILS            YERMAK-2010
H0102 VESSEL DETAILS            R.V. SABVABAA
H0103 SOURCE DETAILS            AIRGUN
H0104 STREAMER DETAILS          SINGLE HYDROPHONE
H0105 OTHER DETAILS             N/A
H0200 SURVEY DATE               JULY 2010
H0201 FILE CREATED              10 NOV 2010 14:21:47 UTC
H0202 FILE VERSION              UKOOA P1/1990
H0203 LINE PREFIX               N/A
H0300 CLIENT                    NPD
H0400 GEOPHYSICAL CONTRACTOR    UNIVERSITY OF BERGEN, NORWAY
H0500 POSITIONING CONTRACTOR    N/A
H0600 POSITIONING PROCESSING    O.M. UNIVERSITY OF BERGEN, DEPT OF EARTH SCIENCE
H0700 SURVEY COMPUTER SOFTWARE  N/A
H0700 GPS                       MFR: GARMIN MOD: GPS35-HVS
H0700 DIFF CORRECTION           NOT AVAILABLE
H0800 SHOTPOINT POSITION        ADJACENT TO SOURCE
H1000 CLOCK TIME                UTC
H1400 GEODETIC DATUM SURVEYED   WGS84       EGM96        6378137.000 298.2572236
H1401 TRANSFORMATION PARAMETERS N/A
H1500 GEODETIC DATUM AS PLOTTED WGS84       EGM96        6378137.000 298.2572236
H1501 TRANSFORMATION PARAMETERS N/A
H1510 TOWNSHIP SYSTEM           N/A
H1600 TRANSFORMATION PARAMETERS N/A
H1700 VERTICAL DATUM SL         ECHO SOUNDER
H1800 PROJECTION                001 UTM NORTHERN HEMISPHERE
H1810 N/A
H1900 ZONE                      31X
H1910 N/A
H2000 GRID UNIT                 1 INTERNATIONAL METRE     1.00
H2001 HEIGHT UNIT               1 INTERNATIONAL METRE     1.00
H2002 ANGULAR UNITS             1 DEGREES
H2600 SOURCE                    1 AIRGUN TOTAL VOLUME 20 CUIN
H2600 SOURCE DETAILS            AIRGUN NO 1: BOLT 20 CUIN
H2600 SOURCE DEPTH NOMINAL      5 M
H2600 HYDROPHONE DETAILS        MFR: BENTHOS, MOD: AQ-18 S/N:
H2600 AIRGUN PRESSURE NOMINAL   120 BAR
H2600 HYDROPHONE DEPTH NOMINAL  5 M
H2600
H2600 00011111111112222222222333333333344444444445555555555666666666677777777778
H2600 78901234567890123456789012345678901234567890123456789012345678901234567890
H2600 LINE-->      <-SP-><---LAT--><--LONG---><--EAST-><-NORTH-><-DEP><D><TIME>-

UKOOA P1/90 Data

¹⁾ Geode log data lacks GPS time/position stamping. Must merge with GUNCO log file.