| GEN | 10-MAR-1994 | 00:20 | 43 | 02.51S | 147 | 22.85E | 17 | 16.78 | 32.70 | ||
| MET | 17.9 | 5.7 | 315.1 | 86.4 | 1015.8 | 536.5 | 9.3 | 305.0 | 99.2 | 12.4 | 6.7 |
| GEN | 10-MAR-1994 | 00:25 | 43 | 03.55S | 147 | 22.92E | 15 | 16.95 | 32.87 | ||
| MET | 18.1 | 10.9 | 334.3 | 85.3 | 1015.8 | 540.3 | 5.7 | 304.8 | 59.9 | 11.9 | 12.9 |
| GEN | 10-MAR-1994 | 00:30 | 43 | 04.30S | 147 | 23.87E | 17 | 17.03 | 33.01 | ||
| MET | 18.4 | 13.7 | 349.6 | 84.4 | 1015.8 | 537.7 | 2.7 | 342.4 | 49.0 | 12.4 | 15.8 |
| GEN | 10-MAR-1994 | 00:35 | 43 | 04.97S | 147 | 24.98E | 22 | 17.20 | 33.18 | ||
| MET | 17.9 | 12.4 | 352.6 | 87.8 | 1015.8 | 538.1 | 1.6 | 314.9 | 49.3 | 12.5 | 14.0 |
| GEN | 10-MAR-1994 | 00:40 | 43 | 05.62S | 147 | 26.12E | 26 | 16.85 | 33.50 | ||
| MET | 17.8 | 13.5 | 337.5 | 89.2 | 1015.7 | 543.4 | 5.2 | 321.7 | 49.3 | 12.3 | 15.5 |
| GEN | 10-MAR-1994 | 00:45 | 43 | 06.23S | 147 | 27.27E | 31 | 16.74 | 33.71 | ||
| MET | 17.2 | 14.1 | 325.5 | 91.3 | 1015.7 | 551.5 | 8.0 | 315.3 | 48.9 | 12.1 | 16.6 |
| GEN | 10-MAR-1994 | 00:50 | 43 | 06.86S | 147 | 28.40E | 35 | 16.86 | 33.74 | ||
| MET | 17.2 | 13.9 | 318.3 | 91.2 | 1015.7 | 560.7 | 9.5 | 309.7 | 50.6 | 12.2 | 16.5 |
Line 1
1. Date and time string (UTC) at the start of the five minute average
2. Latitude at the start of the five minute average
3. Longitude at the start of the five minute average
4. Depth in metres
5. Sea surface temperature (degrees C)
6. Sea surface salinity (psu)
Line 2
1. Average atmospheric temperature (degrees C)
2. Uncorrected wind speed (knots)- vector average over the five minutes
3. Uncorrected wind direction (degrees T)
4. Humidity - percent
5. Air pressure - mBar
6. Licor light meter - radiation intensity in micro einsteins/metre squared
7. Corrected wind speed - as 2 and 3
8. Corrected wind direction
9. Ship's direction - as 3 and 2
10. Ship's speed
11 Maximum wind speed over the five minues - knots
1. Where bad data has been removed for a channel, the value is
left blank.
2. Where no GPS or back interpolated navigation data was available the latitude and longitude are left blank.
3. An example of some FORTRAN code which would read this data
is :
READ(UNIT=__,1000)CDATE,CLAT,CLON,IDEPTH,RWTEMP,RSAL,1 RTEMP,RUNCWS,RUNCWD,RHUM,RBARP,RLICOR,
1 RWSPEED,RWINDD,RSHDIR,RSHSP,RGUST
1000 FORMAT(4X,A17,X,A9,X,A10,X,I4,2(F6.2),/
1 3X,11(F7.1)
where CDATE, CLAT and CLON are CHARACTER variables of length 17,
9 and 10 characters respectively.
4. Wind directions are from as in the meteorological convention.
Depth:
Echo Sounder type Simrad EA 400 was used from RV Franklin Voyage 03/1985 -
Voyage 04/1992
Echo Sounder type Simrad EA 500 was used from RV Franklin Voyage 05/1992 -
present.
This information is maintained by Franklin Electronics staff, starting with Mark Underwood.
TSG water intake system info as supplied by Ships Engineer in Feb 2001:
1. Depth of the water intakes for the fire mains (sea chests I assume ?)
They are approx. 2m below SL. Greg
says that with normal trim, that this value is to within 0.2m.
2. Depth of TSG intake - is this from the same intake system as the fire
mains ?
TSG intake is at the same depth as the sea chests. Physically it is just
aft of the starboard sea chest - a separate pipe into the hull. The pump
is a 4000 lt/hr mono pump pushing water into 40mm PVC pipe. I would guess
that there is approx. 15m of pipe before the TSG. By my calculations,
this means that the pipe volume (75lt) is replaced in just over a
minute. The intake thermometer is approximately 1m inside, and
before the pump.
Position
Data 1 as supplied by Bernadette Heaney in Nov 2001:
1990 the Ashtech OEM sensor was installed.
The Ship obtained a Trimble navtrack unit in 1991. If there is no position
available from the primary navigation data instrument the data from the
secondary unit is recorded ie the position data could have originated from the
Trimble.
A RACAL differential GPS was trialled on 10 and 11 /94. RACAL was expensive as
it used Inmarsat.
FR 10/96 a third GPS was trialled on a Ray Binns voyage. A receiver was set up
on an island.
The Fugro (which uses Aussat) was installed for FR 8/97 for differential
correction. We have differential GPS correction for the "Australian"
footprint only.
The 3df-GPS was installed in 1999 ("gpa"). The position data is not
differentially corrected. The heading data is mainly used for ADCP data
processing.
FR 5/99 - the G8 was installed. The firmware had to be corrected as we'd receive
no data at all if there wasn't any differential correction. The G8 also had a
problem of not updating the heading data if the speed was less than about 2
knots.
Selective availability of the GPS data was turned off by the American military
giving much improved positions - 1 May 2000.
The G12 was installed for FR 5/2000. We are still using the Fugro differential
correction. Data is still being processed in the "old" way, the binary
files from the ship containing 1 second lat, lon, speed and direction and
producing 1 minute position values. But also full nmea VTG and GGA strings are
recorded.
Position
Data 2 as supplied by Mark Underwood in Dec 2001:
WGS-84 is the only ellipsoid built into the last three
GPS engines we have used (the Ashtec OEM, the G8 and the current G12)Position Data 3: Information from http://www.wgs84.com
World Geodetic System 1984 (WGS 84)
WGS 84 is an earth fixed global reference frame, including an earth model. It is defined by a set of primary and secondary parameters:
- the primary parameters define the shape of an earth ellipsoid, its angular velocity, and the earth mass which is included in the ellipsoid reference
- the secondary parameters define a detailed gravity model of the earth.