Revelle Leg KIWI09, 13 Feb.-19 Mar. 1998; APFZ Process 2
US JGOFS Antarctic Environments Southern Ocean Process Study (AESOPS)
Revelle Leg KIWI09, 13 Feb.-19 Mar. 1998; APFZ Process 2
John M. Morrison
15 June 1999
This "readme" file pertains to the CTD data taken during R/V Roger Revelle Cruise
RR09 (KIWI09RR), 13 February - 19 March 1998.
Dr. Wilford Gardner of the Deptartment of Oceanography at Texas A & M University
(wgardner@ocean.tamu.edu) was the chief scientist during this leg. This cruise was
the process study leg aboard 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 on this leg. 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 a separate files.
TRACE METAL CASTS CTD CALIBRATION
---------------------------------------------------------------------------------
This the setup, processing and calibation information for the
setup of the Trace Metal Rosette CTD for cruise RR09.
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NOTE NOTE NOTE NOTE NOTE NOTE
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All of the casts made with the TM Rosette CTD were mostly within the high
salinity gradient surface region. Because of the slow time constant response
of the SeaCat CTD the conductivity data are quit noisy. No effort has been made
to clean up this data as it would basicly made the profile worthless. Therefore,
the TM Rosette CTD data reported here has been calibrated for conductivity
difference between the bottles and, but otherwise are basicly
"raw" data which might be at least of some use in identifying the conductivity
(salinity) gradients in the upper layer. LET THE USER BEWARE!!!!!!
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SEA-BIRD Processing Information: Example R0900202.cnf_tm
Before calibration of the CTD sensors with the water samples,
standard SEA-BIRD processing was carried out on all the files.
(The same basic processing steps were carried out on all files,
therefore, only one example is given as representative of the
entire cruise.)
Sea-Bird SBE 19 Data File:
* FileName = G:\R0900202.HEX
* Software Version 4.227
* Temperature SN = 2216
* Conductivity SN = 2216
* System UpLoad Time = Feb 18 1998 13:36:36
* Command Line = seasave -c12_tm -d150m -l
** Ship: R/V Roger Revelle
** Cruisenumber: KIWI09-RR
** Cruisename: JGOFS S.O. Process II
# nquan = 12
# nvalues = 748
# 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 = 2.000, 376.000
# span 1 = 3.4520, 6.6396
# span 2 = 31.470819, 34.083355
# span 3 = 2.722e-03, 2.131e-01
# span 4 = 0.00000, 0.00000
# span 5 = 0.0000, 0.0000
# span 6 = 33.9931, 35.1844
# span 7 = 1.983, 372.540
# span 8 = 26.6753, 27.8496
# span 9 = 26.6751, 27.8488
# span 10 = 3.4302, 6.6359
# span 11 = 0.000e+00, 0.000e+00
# interval = decibars: 1
# start_time = Feb 18 1998 13:36:36
# bad_flag = -9.990e-29
# sensor 0 = Frequency 0 temperature, 2216, 30-May-97s
# sensor 1 = Frequency 1 conductivity, 2216, 30-May-97s, cpcor = -9.5700e-08
# sensor 2 = Extrnl Volt 0 irradiance (PAR), UWQ, May 21, 1996
# sensor 3 = Pressure Voltage, 178053, 06 June 1997
# datcnv_date = Feb 25 1998 06:58:24, 4.227
# datcnv_in = R0900202.HEX 12_TM.CON
# datcnv_skipover = 0
# alignctd_date = Feb 25 1998 06:59:10, 4.227
# alignctd_in = R0900202.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 = 0.000
# filter_date = Feb 25 1998 06:59:51, 4.227
# filter_in = R0900202.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
# loopedit_date = Feb 25 1998 07:00:32, 4.227
# loopedit_in = R0900202.CNV
# loopedit_minVelocity = 0.100
# loopedit_excl_bad_scans = yes
# binavg_date = Feb 25 1998 07:01:01, 4.227
# binavg_in = R0900202.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 = Feb 25 1998 07:01:24, 4.227
# derive_in = R0900202.CNV 12_TM.CON
# file_type = ascii
*END*
------------------------------------------------------------------
CALIBRATIONS:
The conductivity and oxygen sensors were calibrated by curve
fitting the differences between the CTD observations and
laboratory measurements of water samples taken by the
SEA-BIRD water sampler.
CTD Setup #1:
Temperture Sensor: 2216
Conductivity Sensor: 2216
Stations:
/aesops/REVELLE/R09/CTD/R0900002.cnf_tm
/aesops/REVELLE/R09/CTD/R0900202.cnf_tm
/aesops/REVELLE/R09/CTD/R0900203.cnf_tm
/aesops/REVELLE/R09/CTD/R0900206.cnf_tm
/aesops/REVELLE/R09/CTD/R0900210.cnf_tm
/aesops/REVELLE/R09/CTD/R0900302.cnf_tm
/aesops/REVELLE/R09/CTD/R0900401.cnf_tm
/aesops/REVELLE/R09/CTD/R0900403.cnf_tm
/aesops/REVELLE/R09/CTD/R0900405.cnf_tm
/aesops/REVELLE/R09/CTD/R0900406.cnf_tm
/aesops/REVELLE/R09/CTD/R0900408.cnf_tm
/aesops/REVELLE/R09/CTD/R0900502.cnf_tm
/aesops/REVELLE/R09/CTD/R0900602.cnf_tm
/aesops/REVELLE/R09/CTD/R0900701.cnf_tm
/aesops/REVELLE/R09/CTD/R0900703.cnf_tm
/aesops/REVELLE/R09/CTD/R0900704.cnf_tm
/aesops/REVELLE/R09/CTD/R0900705.cnf_tm
/aesops/REVELLE/R09/CTD/R0900707.cnf_tm
/aesops/REVELLE/R09/CTD/R0900802.cnf_tm
/aesops/REVELLE/R09/CTD/R0900901.cnf_tm
/aesops/REVELLE/R09/CTD/R0900903.cnf_tm
/aesops/REVELLE/R09/CTD/R0900907.cnf_tm
/aesops/REVELLE/R09/CTD/R0900908.cnf_tm
/aesops/REVELLE/R09/CTD/R0900910.cnf_tm
/aesops/REVELLE/R09/CTD/R0901202.cnf_tm
/aesops/REVELLE/R09/CTD/R0901301.cnf_tm
/aesops/REVELLE/R09/CTD/R0901303.cnf_tm
/aesops/REVELLE/R09/CTD/R0901304.cnf_tm
/aesops/REVELLE/R09/CTD/R0901305.cnf_tm
/aesops/REVELLE/R09/CTD/R0901307.cnf_tm
/aesops/REVELLE/R09/CTD/R0901310.cnf_tm
/aesops/REVELLE/R09/CTD/R0901312.cnf_tm
/aesops/REVELLE/R09/CTD/R0901314.cnf_tm
/aesops/REVELLE/R09/CTD/R0901402.cnf_tm
/aesops/REVELLE/R09/CTD/R0901403.cnf_tm
/aesops/REVELLE/R09/CTD/R0901501.cnf_tm
/aesops/REVELLE/R09/CTD/R0901504.cnf_tm
/aesops/REVELLE/R09/CTD/R0901807.cnf_tm
/aesops/REVELLE/R09/CTD/R0901902.cnf_tm
/aesops/REVELLE/R09/CTD/R0902004.cnf_tm
/aesops/REVELLE/R09/CTD/R0902005.cnf_tm
/aesops/REVELLE/R09/CTD/R0902007.cnf_tm
/aesops/REVELLE/R09/CTD/R0902602.cnf_tm
/aesops/REVELLE/R09/CTD/R0902701.cnf_tm
/aesops/REVELLE/R09/CTD/R0902802.cnf_tm
/aesops/REVELLE/R09/CTD/R0902902.cnf_tm
/aesops/REVELLE/R09/CTD/R0902903.cnf_tm
/aesops/REVELLE/R09/CTD/R0902905.cnf_tm
Temperature Calibration: Temperatures are asssumed to be
good to +/- .01 Deg Centigrade
Salinity Calibration:
To correct the CTD conductivities the
following correction is used:
Cor Sal = Obs Sal - Sal Cor
Sal Cor = 0.01
Standard Deviation of Correction = 0.01
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