P11 bathymetry:
Updated 7/11/2003 LDT

ASCII navigation and bathymetry data files: 
P11A: received from S. Wijffels via J. Crease, 11/13/98
P11S: received from S. Wijffels via J. Crease, 11/13/98

"P11_bathy_original.zip" is a gzip file containing the files
P11A_bathy_original.txt and P11S_bathy_original.txt
(in different formats)

P11A:
Expocode:  09AR9391_2
Chief Scientist: Steve Rintoul
Ship:  R/V Aurora Australis
Ports: Hobart to Hobart, Australia
Dates: 1993.APR.4 - 1993.MAY.9

"P11A_bathy_original.txt" is the original data, CSIRO format.  
    Original filename: au9391.dep
    Sound speed 1498 m/sec used.
    Recorded every 10 seconds.

"P11A_bathy_corrected.txt" is in Geological Data Center
    format and includes Carter-corrected depths.  

P11S:
Expocode:  09FA693
Chief Scientist: John Church
Ship:  R/V Franklin
Ports: Cairns to Hobart, Australia
Dates: 1993.06.24 - 1993.07.17

"P11S_bathy_original.txt" is the original data, different CSIRO format.  
    Original file name: fr9306pr.txt
    Sound speed 1498 m/sec used.
    Recorded every 5 minutes.
    Many gaps.

"P11S_bathy_corrected.txt" is in Geological Data Center
    format and includes Carter-corrected depths.  

--------------------------
Complete P11 section:

"P11_bathydist.dat" is the decimated bathymetry file, projected
    onto straight lines between station positions, used for plotting
    the vertical sections.

"P11_sta_bdep.dat" is the station list, with corrected bottom
    depths as taken from the p11ssu.txt and p11asu.txt files 
    (station summary files)

--------------------------
Ascii Navigation format for the original data "P11A_bathy_original.txt" (one
	record per-line):
decimal Julian date (dd.dddddddd)
date  		(mm dd yyyy)
GMT time 	(hh mm ss)
latitude	(ddd.dddd) "S" negative
longitude	(dddd.dddd) "W" negative
depth		(dddd.d) meters

Ascii Navigation format for the original data "P11S_bathy_original.txt" (one
	record per-line):
filler      (GEN)
date  		(dd-MON-yyyy)
GMT time 	(hh:mm)
latitude	(dd mm.mm)S
longitude	(dd mm.mm)E
depth		(dddd) meters

Format of the Carter corrected file, "P11_bathy_corrected.dat" (one record per line):
lat (ddddd.mmm) "S" negative
lon (ddddd.mmm) "W" negative
dpt (dddddd.d) meters
imo (ii) month
ida (ii) day
iyr (ii) year
ihr (ii) hour
imi (ii) minute
ise (ii) second
ydat (yyyyddd.hhh) (Julian date in ytk format)

Format of the file used for section plotting "P11_bathydist.dat"
ist (iii) station number (set to 1)
dist (ffffff.f) distance (km) along section
lat (dddddd.mm) decimal latitude
lon (dddddd.mm) decimal longitude 
dpt (ddddd.d) depth meters

Format of p11_sta_bpres.dat and P11_sta_bdep.dat
station  (iiii) station number
distance (xxxxx.x) km along section
latitude (xxx.xxx)
longitude (xxxx.xxx)
pressure  (xxxx.x) dbar  OR  depth in meters

----------------------------------------------------------------------
Editing notes for P11 bathymetry:  

P11A
2 outlier depths removed
decimal day  ida imo iyr hr mi  se    lat        lon    depth
108.24456018  19  4 1993   5 52 10  -54.7649  155.0306  1517.6
105.83125001  16  4 1993  19 57  0  -53.0845  155.1296  1046.0

Used only every 6th good point since original series is 10 sec.
Because of numerous gaps in the data the output file is generally
more than a 1 minute time series.

Removed all ship speeds less than 2 knots.

Removed navigation reversals (latitude reversals on the 155E portion
and longitude reversals on the 63S portion)


P11S
Missing depths from stations 21 to 23, so inserted the depths of
these three stations (21,22,23).

Removed navigation reversals (latitude reversals)