US JGOFS Antarctic Environments Southern Ocean Process Study (AESOPS)
Revelle Leg KIWI06, Oct. - Nov. 1997; APFZ Survey 1
John M. Morrison
14 December 1998
This "readme" file pertains to the CTD data taken during
R/V Roger Revelle Cruise KIWI06, 20 October 24 November 1997.
Dr. Tim Cowles of the College of Oceanic and Atmospheric Sciences at
Oregon State University (cowles@oce.orst.edu) was the chief scientist during
this leg. This cruise was the first survey leg on the R/V Roger Revelle during
the U.S. JGOFS program in the Southern Ocean (AESOPS). The Revelle legs focused
on the Polar Front region and complemented several AESOPS cruises on board the
R/V Nathaniel Palmer which focused on the Ross Sea.
Several casts were also made with with a trace metal clean rosette equipped
with a SeaCat CTD which was lost on 13 Novenber 1997. These data were calibrated
separately as this system was not designed to produce hydrographic data of
"WOCE quality". These trace metal rosette data have been submitted to the
U.S. JGOFS data base as separate files.
TRACE METAL ROSETTE CTD Calibration:
A single calibration is applied to all of the stations for salinity (conductivity):
As can be seen in the SEA-BIRD Processing Information below, the CTD
package was outfitted with: temperature and salinity sensors,
Wet Labs WetStar Fluorometer, LICOR LI-192SA PAR
and Sea-Tech LS6000 Backscatter sensor,
This file only refers to the calibration of the CTD temperature
and salinty sensors. The remainder of the sensors are to be calibrated
by others.
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SEA-BIRD Processing Information: Example R0600102.cnf_tm
* Sea-Bird SBE 19 Data File:
* FileName = G:\R0600102.HEX
* Software Version 4.227
* Temperature SN = 2257
* Conductivity SN = 2257
* System UpLoad Time = Oct 24 1997 00:27:10
* NMEA Latitude = 57 0.08 S
* NMEA Longitude = 169 59.86 W
* NMEA UTC (Time) = 00000000
* Store Lat/Lon Data = Add to Header Only
* Command Line = seasave -ctm_12 -d150m -l
** Ship: R/V Roger Revelle
** Cruisenumber: KIWI06-RR
** Cruisename: JGOFS S.O. Survey 1
# nquan = 12
# nvalues = 318
# units = metric
# name 0 = pr: pressure [db]
# name 1 = t068: temperature, IPTS-68 [deg C]
# name 2 = c0mS/cm: conductivity [mS/cm]
# name 3 = par: irradiance (PAR)
# name 4 = stLs6000: sea tech ls6000 [mg/l]
# name 5 = wetStar: WET Labs, WETStar chlorophyll concentration [æg/l]
# name 6 = sal00: salinity, PSS-78 [PSU]
# name 7 = depS: depth, salt water [m]
# name 8 = sigma-é00: density, sigma-theta [kg/m^3]
# name 9 = sigma-t00: density, sigma-t [kg/m^3]
# name 10 = potemp068: potential temperature, IPTS-68 [deg C]
# name 11 = flag: 0.000e+00
# span 0 = 1.000, 160.000
# span 1 = 4.1627, 4.2402
# span 2 = 31.871670, 32.053200
# span 3 = 2.127e-01, 1.079e+03
# span 4 = 1.96149, 21.00973
# span 5 = 0.3947, 2.9702
# span 6 = 34.0051, 34.0735
# span 7 = 0.991, 158.469
# span 8 = 26.9767, 27.0292
# span 9 = 26.9766, 27.0281
# span 10 = 4.1557, 4.2294
# span 11 = 0.000e+00, 0.000e+00
# interval = decibars: 1
# start_time = Oct 24 1997 00:27:10
# bad_flag = -9.990e-29
# sensor 0 = Frequency 0 temperature, 2257, 13-Aug-96s
# sensor 1 = Frequency 1 conductivity, 2257, 13-Aug-96s, cpcor = -9.5700e-08
# sensor 2 = Extrnl Volt 0 irradiance (PAR), 5306, 02-Aug-96
# sensor 3 = Extrnl Volt 1 sea tech ls6000, 103, 2/17/94
# sensor 4 = Extrnl Volt 2 WET Labs, WETStar fluorometer, WS3S-152, 7/3/97
# sensor 5 = Pressure Voltage, 176762, 30-Sep-96
# datcnv_date = Oct 24 1997 01:13:27, 4.227
# datcnv_in = R0600102.HEX TM_12.CON
# datcnv_skipover = 0
# filter_date = Oct 24 1997 01:17:30, 4.227
# filter_in = R0600102.CNV
# filter_low_pass_tc_A = 0.500
# filter_low_pass_tc_B = 2.000
# filter_low_pass_A_vars = c0mS/cm
# filter_low_pass_B_vars = pr
# alignctd_date = Oct 24 1997 01:21:10, 4.227
# alignctd_in = R0600102.CNV
# alignctd_cond_advSecs = 0.000, 0.000
# alignctd_temp_advSecs = 0.500, 0.000
# alignctd_oxygen_current_advSecs = 0.000, 0.000
# alignctd_oxygen_temp_advSecs = 0.000, 0.000
# alignctd_wetstar_advSecs = 1.000
# loopedit_date = Oct 24 1997 01:22:58, 4.227
# loopedit_in = R0600102.CNV
# loopedit_minVelocity = 0.100
# loopedit_excl_bad_scans = yes
# binavg_date = Oct 24 1997 01:25:38, 4.227
# binavg_in = R0600102.CNV
# binavg_bintype = Pressure Bins
# binavg_binsize = 1.00
# binavg_excl_bad_scans = yes
# binavg_downcast_only = no
# binavg_skipover = 0
# binavg_surface_bin = no, min = 0.000, max = 0.000, value = 0.000
# derive_date = Oct 24 1997 01:27:59, 4.227
# derive_in = R0600102.CNV TM_12.CON
# file_type = ascii
*END*
----------------------------------------------------
----------------------------------------------------
CTD Salinity Calibration:
/aesops/REVELLE/R06/CTD/R0600102.cnf_tm
/aesops/REVELLE/R06/CTD/R0600103.cnf_tm
/aesops/REVELLE/R06/CTD/R0600302.cnf_tm
/aesops/REVELLE/R06/CTD/R0600303.cnf_tm
/aesops/REVELLE/R06/CTD/R0600802.cnf_tm
/aesops/REVELLE/R06/CTD/R0600803.cnf_tm
/aesops/REVELLE/R06/CTD/R0600804.cnf_tm
/aesops/REVELLE/R06/CTD/R0601202.cnf_tm
/aesops/REVELLE/R06/CTD/R0601203.cnf_tm
Spikey data were removed from:
R0600303.cnf_tm pressure range 137 - 156
R0600803.cnf_tm pressure range 102 - 110
R0600804.cnf_tm pressure range 116 - 120
Conductivity Sensor 2257:
To correct the CTD conductivities the
following correction is used:
Cor Sal = Obs Sal - Sal Cor
Conductivity STDEV= 0.01 MEAN= -0.01
Salinity STDEV= 0.01 MEAN= -0.01
Therefore, a correction of .01 was applied to the shipboard
Conductivities and Salinities.
and Salinities.
The reported Conductivities and Salinities are good to +/- .01.
The raw data files may be requested from:
DR.JOHN M. MORRISON
NORTH CAROLINA STATE UNIVERSITY
DEPARTMENT OF MARINE, EARTH AND ATMOSPHERIC SCIENCES
JORDAN HALL RM. 1125
BOX 8208
RALEIGH, NC 27695-8208
Phone: 919-515-7449
Fax: 919-515-7802
Email: John_Morrison@ncsu.edu