S4P bathymetry data 
(updated 10/14/04 LDT)

ASCII bathymetry data file was obtained from 
Uta Albright of SIO Geological Data Center on 9/23/03 (LDT).
The depths are corrected.

Expocode: 90KDIOFFE6_1
Chief Scientist: Mikhail Koshlyakov
Ship:  Akademik Ioffe
Ports: Montevideo, Uruguay to Wellington, New Zealand 
Dates: 1992.02.14  -  1992.04.06

"mgd77.IOFE01IF" is the original data in NGDC format

"S4P_bathy_gdc.dat" is mgd77.IOFE01IF reformatted to our standard format

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Format specifications

Ascii Navigation format for the original data mgd77.IOFE01IF
Complex, packed format.
Obtain programs and subroutines from SIO Geological Data Center

Ascii Navigation format for the formatted data "file_bathy_gdc.dat" 
latitude    (xxx.xxx)
longitude   (xxxx.xxx)
unc depth   (xxxxx.x) meters
corr depth  (xxxxx.x) meters
month       (ii)  (set to zero here)
julian day  (iii) day of the year
year        (ii) assuming 1900 century
hour        (ii)
minute      (ii)
second      (ii)
Julian date (xxxxxxx.xxxxx)

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Data comments:
On-station data have been removed

Ran ../../programs/mgd77/fmgd77 IOFE01IF > new_gdc_sample
   note: times that have meters and not 2way travel time are
     not corrected ( unspecified correction )
   then put in shipspeed and corrected detphs
                ../../programs/mgd77_2_gdc/gdc_ss_cdep new_gdc_sample out