MIRAI MR08-03 Conductivity-Temperature-Depth Profiler (CTD)

Last Modified: 2017-06-22
: MR08-03
: Processed (DMO)-QCed
: JAMSTEC
: Pressure, Temperature, Salinity, Dissolved oxygen
:
OCEANS > OCEAN CHEMISTRY > OXYGEN
OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
OCEANS > SALINITY/DENSITY > SALINITY

For Using Data

Data Management Office
See Terms and Conditions about constrain of use.
See Terms and Conditions about data citation.
Instrument:
Water sampling system with CTD (30 litters * 24 bottles)
Instrument:
Water sampling system with CTD (12 litters * 36 bottles)
Instrument:
Water sampling system with CTD (12 litters * 12 bottles)
Instrument:
Conductivity temperature depth measurements (CTD)
CTD(Conductivity-Temperature-Depth profiler) is used to observe the vertical profiles of temperature and conductivity.
Usually, this system is operated with multicylinder water sampler.
Observed signal is transmitted from sensor to the operation room on board using wire cable, and electric power is supplied from vessel to sensor.
Details of sensors attached to CTD system for MR08-03 cruise are presented in “System”.
The following software, developed and supplied by the Sea-Bird Electronics, Inc., was used in MR08-03.
SEASAVE(ver 5.27b) for data acquisition
SEASOFT(ver 5.27b) for data processing
Data presented on this website is averaged over 1db.

• Pressure sensor
Model : SBE9plus, Sea-Bird Electronics,Inc.
Serial number : 79511
Measurement range : up to 10500m
Accuracy : 0.015% F.S.
Resolution : 0.001% F.S.
• Temperature sensor
Model : SBE3, Sea-Bird Electronics,Inc.
Serial number : 034421
Measurement range : -5.0 to +35degC
Accuracy : 0.001degC
Resolution : 0.0002degC
• Salinity sensor
Model : SBE4, Sea-Bird Electronics,Inc.
Serial number : 041206
Measurement range : 0.0 to 7 S/m
Accuracy : 0.0003 S/m
Resolution : 0.00004 S/m
• DO sensor
Model : SBE43, Sea-Bird Electronics,Inc.
Serial number : 430394
Measurement range : 120% of surface saturation
Accuracy : 2% of saturation

Sensors used in each cast is as follows.
Cast name Serial number of sensor
Pressure Temperature Salinity Dissolved Oxygen
C01M01 79511 034421 041206 430394
C01M02 79511 034421 041206 430394
C01M03 79511 034421 041206 430394
C01M04 79511 034421 041206 430394
C02M01 79511 034421 041206 430394
C03M01 79511 034421 041206 430394
C04M01 79511 034421 041206 430394
C04M02 79511 034421 041206 430394
C05M01 79511 034421 041206 430394
C06M01 79511 034421 041206 430394
C08M01 79511 034421 041206 430394
C07M01 79511 034421 041206 430394
C07M02 79511 034421 041206 430394
C07M03 79511 034421 041206 430394
C07M04 79511 034421 041206 430394
C09M01 79511 034421 041206 430394
C09M02 79511 034421 041206 430394
C10M01 79511 034421 041206 430394
C11M01 79511 034421 041206 430394
C11M02 79511 034421 041206 430394
C11M03 79511 034421 041206 430394
C11M04 79511 034421 041206 430394
C18M01 79511 034421 041206 430394
C18M02 79511 034421 041206 430394
C18M03 79511 034421 041206 430394
C18M04 79511 034421 041206 430394
C18M05 79511 034421 041206 430394
C17M01 79511 034421 041206 430394
C16M01 79511 034421 041206 430394
C15M01 79511 034421 041206 430394
C15M02 79511 034421 041206 430394
C12M01 79511 034421 041206 430394
C12M02 79511 034421 041206 430394
C12M03 79511 034421 041206 430394
C12M04 79511 034421 041206 430394
C12M05 79511 034421 041206 430394
C13M01 79511 034421 041206 430394
C14M01 79511 034421 041206 430394
C18M06 79511 034421 041206 430394
C18M07 79511 034421 041206 430394
C18M08 79511 034421 041206 430394
C18M09 79511 034421 041206 430394
C18M10 79511 034421 041206 430394
C18M11 79511 034421 041206 430394
C18M12 79511 034421 041206 430394
C18M13 79511 034421 041206 430394
C19M01 79511 034421 041206 430394
C20M01 79511 034421 041206 430394
C20M02 79511 034421 041206 430394
C21M01 79511 034421 041206 430394
C22M01 79511 034421 041206 430394
C23M01 79511 034421 041206 430394
C22M02 79511 034421 041206 430394
C22M04 79511 034421 041206 430394
C22M05 79511 034421 041206 430394
C24M01 79511 034421 041206 430394
C24M02 79511 034421 041206 430394
C25M01 79511 034421 041206 430394
C26M01 79511 034421 041206 430394
C26M02 79511 034421 041206 430394
C26M03 79511 034421 041206 430394
C26M04 79511 034421 041206 430394
C26M05 79511 034421 041206 430394
C27M01 79511 034421 041206 430394
C28M01 79511 034421 041206 430394
C29M02 79511 034421 041206 430394
C32M01 79511 034421 041206 430394
C31M01 79511 034421 041206 430394
C30M01 79511 034421 041206 430394
C32M02 79511 034421 041206 430394
C32M03 79511 034421 041206 430394
C32M04 79511 034421 041206 430394
C33M01 79511 034421 041206 430394
C34M01 79511 034421 041206 430394
C34M02 79511 034421 041206 430394
C34M03 79511 034421 041206 430394
C34M04 79511 034421 041206 430394
C34M05 79511 034421 041206 430394
C34M06 79511 034421 041206 430394
Calibration Information is as follows.
(1) Data processing sequence for SEASOFT is as follows;
command function
datcnv Convert raw data to engineering units, and store converted data in file.
alignctd Align data relative to pressure(typically used for conductivity, temperature, and oxygen).
wildedit Mark a data value with badflag to eliminate wild points.
celltm Perform conductivity thermal mass correction.
filter Low-pass filter columns of data.
wfilter Median filter removes spikes of fluorometer data.
section Extract rows of data from file.
loopedit Mark a scan with badflag if scan fails pressure reversal or minimum velocity tests.
derive Calculate oxygen. (with oxygen sensor)
binavg Average data, basing bins on pressure, depth, scan number, or time range.
derive Calculate salinity, density, etc..
split Split data in file into upcast and downcast files.
(2) Quality control
QCed data were added flag according to the NODC (National Oceanographic Data Center) quality control procedure.
1) The gradient check of adjacent depth data
2) The density inversion check
3) The broad range check set up at given ocean space and depth
Please see the site of NODC of the following link for quality control procedure in detail.
In addition, an abnormal value is identified by a visual check, and the data after visual QC is released.
(1) In this cruise, there is extra data (fluorescence intensity, transmittance, distance to bottom) in additional to temperature, salinity, dissolved oxygen that has been opened to the public. Please contact us from "Contact Us" above if necessary.
: MR08-03
: Processed (DMO)-QCed
: JAMSTEC
: Pressure, Temperature, Salinity, Dissolved oxygen
:
OCEANS > OCEAN CHEMISTRY > OXYGEN
OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
OCEANS > SALINITY/DENSITY > SALINITY

Observation Map

  1. Clicking the icon displays a balloon with observation information.
  2. Then click the observation name, figures will be displayed.
Imagery reproduced from ...

Figures

Data List

File names
C01M01.dat
C01M02.dat
C01M03.dat
C01M04.dat
C02M01.dat
C03M01.dat
C04M01.dat
C04M02.dat
C05M01.dat
C06M01.dat
C07M01.dat
C07M02.dat
C07M03.dat
C07M04.dat
C08M01.dat
C09M01.dat
C09M02.dat
C10M01.dat
C11M01.dat
C11M02.dat
C11M03.dat
C11M04.dat
C12M01.dat
C12M02.dat
C12M03.dat
C12M04.dat
C12M05.dat
C13M01.dat
C14M01.dat
C15M01.dat
C15M02.dat
C16M01.dat
C17M01.dat
C18M01.dat
C18M02.dat
C18M03.dat
C18M04.dat
C18M05.dat
C18M06.dat
C18M07.dat
C18M08.dat
C18M09.dat
C18M10.dat
C18M11.dat
C18M12.dat
C18M13.dat
C19M01.dat
C20M01.dat
C20M02.dat
C21M01.dat
C22M01.dat
C22M02.dat
C22M04.dat
C22M05.dat
C23M01.dat
C24M01.dat
C24M02.dat
C25M01.dat
C26M01.dat
C26M02.dat
C26M03.dat
C26M04.dat
C26M05.dat
C27M01.dat
C28M01.dat
C29M02.dat
C30M01.dat
C31M01.dat
C32M01.dat
C32M02.dat
C32M03.dat
C32M04.dat
C33M01.dat
C34M01.dat
C34M02.dat
C34M03.dat
C34M04.dat
C34M05.dat
C34M06.dat
ex_read2.f (Sample Program)
Observation List
The list of observation is shown as follows.
Observation Time and Date Lat. [°] Lon. [°]
C01M01 2008-07-04 19:50 5.0320 146.9653
C01M02 2008-07-05 02:50 5.0313 146.9656
C01M03 2008-07-05 04:05 4.9791 147.0225
C01M04 2008-07-05 07:50 5.0323 146.9650
C02M01 2008-07-06 03:20 4.5214 146.9981
C03M01 2008-07-06 06:06 4.0051 146.9998
C04M01 2008-07-06 08:53 3.5165 147.0010
C04M02 2008-07-06 19:50 3.4981 147.0010
C05M01 2008-07-06 22:43 3.0021 147.0013
C06M01 2008-07-07 01:40 2.5021 147.0028
C07M01 2008-07-07 19:50 2.0050 147.0056
C07M02 2008-07-08 02:52 2.0078 147.0043
C07M03 2008-07-08 04:07 2.0626 146.9763
C07M04 2008-07-08 07:50 2.0040 147.0065
C08M01 2008-07-07 07:08 1.5035 147.0068
C09M01 2008-07-09 05:45 1.0016 146.9998
C09M02 2008-07-09 06:28 1.0001 146.9985
C10M01 2008-07-09 09:07 0.4991 146.9991
C11M01 2008-07-10 02:56 0.0433 146.9810
C11M02 2008-07-10 19:52 -0.0041 147.0423
C11M03 2008-07-11 02:50 -0.0050 147.0440
C11M04 2008-07-11 07:50 -0.0056 147.0396
C12M01 2008-07-15 18:51 -4.9985 155.9993
C12M02 2008-07-15 23:23 -4.9685 156.0073
C12M03 2008-07-16 01:50 -4.9985 156.0008
C12M04 2008-07-16 03:10 -5.0425 156.0046
C12M05 2008-07-16 06:51 -4.9983 156.0100
C13M01 2008-07-17 01:59 -4.5018 155.9998
C14M01 2008-07-17 04:45 -4.0178 155.9996
C15M01 2008-07-15 07:34 -3.4956 155.9995
C15M02 2008-07-15 08:06 -3.4986 156.0008
C16M01 2008-07-15 04:54 -2.9976 155.9995
C17M01 2008-07-15 02:15 -2.4993 155.9996
C18M01 2008-07-13 18:51 -1.9721 155.9843
C18M02 2008-07-13 23:34 -1.9910 156.0200
C18M03 2008-07-14 01:50 -1.9720 155.9826
C18M04 2008-07-14 03:35 -1.9383 155.8126
C18M05 2008-07-14 06:51 -1.9730 155.9831
C18M06 2008-07-17 18:53 -1.9728 155.9840
C18M07 2008-07-17 21:50 -1.9740 155.9836
C18M08 2008-07-18 00:53 -1.9740 155.9821
C18M09 2008-07-18 03:54 -1.9741 155.9833
C18M10 2008-07-18 06:50 -1.9768 155.9840
C18M11 2008-07-18 09:51 -1.9750 155.9853
C18M12 2008-07-18 12:50 -1.9746 155.9826
C18M13 2008-07-18 15:51 -1.9748 155.9830
C19M01 2008-07-18 18:50 -1.4993 155.9991
C20M01 2008-07-18 21:50 -1.0001 156.0000
C20M02 2008-07-18 22:37 -0.9986 155.9988
C21M01 2008-07-19 01:54 -0.4995 155.9996
C22M01 2008-07-19 04:50 0.0066 156.0238
C22M02 2008-07-19 18:50 -0.0161 156.0000
C22M04 2008-07-19 23:50 -0.0055 155.9703
C22M05 2008-07-20 06:50 -0.0093 155.9828
C23M01 2008-07-19 07:51 0.5005 155.9995
C24M01 2008-07-21 04:07 0.9870 155.9995
C24M02 2008-07-21 04:50 1.0025 155.9955
C25M01 2008-07-21 07:38 1.4980 155.9998
C26M01 2008-07-21 18:50 1.9835 155.9996
C26M02 2008-07-22 00:03 1.9698 155.9980
C26M03 2008-07-22 01:50 1.9838 156.0006
C26M04 2008-07-22 03:06 2.0425 156.0218
C26M05 2008-07-22 06:50 1.9840 156.0018
C27M01 2008-07-23 03:28 2.5071 156.0000
C28M01 2008-07-23 05:56 2.9985 155.9996
C29M02 2008-07-23 08:27 3.4898 155.9993
C30M01 2008-07-24 07:39 4.0083 156.0000
C31M01 2008-07-24 04:56 4.5066 156.0003
C32M01 2008-07-24 01:58 5.0111 155.9996
C32M02 2008-07-24 18:50 5.0223 155.9560
C32M03 2008-07-25 01:52 5.0223 155.9553
C32M04 2008-07-25 07:03 5.0240 155.9590
C33M01 2008-07-25 18:22 6.5020 156.0001
C34M01 2008-07-26 06:55 7.9713 156.0081
C34M02 2008-07-26 18:50 7.9556 156.0135
C34M03 2008-07-27 01:50 7.9570 156.0135
C34M04 2008-07-27 02:54 7.9586 156.0068
C34M05 2008-07-27 04:04 7.9643 156.0093
C34M06 2008-07-27 07:18 7.9551 156.0050
: MR08-03
: Processed (DMO)-QCed
: JAMSTEC

CTD DMO


Format Description for the Corrected Data
Provided in the Exchange Format of CCHDO (CLIVAR and Carbon Hydrographic Data Office). Please see the following link for details of Exchange Format.
Data in following cruise is not expressed with Exchange Format. Please see the site of each cruise for format.
MR02-K05 Leg1
MR04-05
Format Description for the QCed Data
Each data file contains one line header (meta data) followed by data lines for each cast.
The number of data lines are recorded in the header.
  1. Header part
No. Column Content Format Remarks
1 1 Header ID a1 fixed as '#'
2 3 - 6 Data ID a4 CTD
3 8 - 22 Cruise ID a15 MRYY-(K)XX(_legx)
4 24 - 31 Cast name a8
5 33 - 40 Date i8 YYYYMMDD (UTC)
6 42 - 45 Time i4 hhmm (UTC)
7 47 - 55 Latitude i2,a1,f5.2,a1 dd-mm.mmN(S)
8 57 - 66 Longitude i3,a1,f5.2,a1 ddd-mm.mmE(W)
9 68 - 71 Number of data lines i4
10 72 - 73 Terminator - CR+LF
  1. Data part
No. Column Content Unit Format Remarks
1 1 - 11 Pressure dbar f11.3
2 12 - 22 Temperature deg-C f11.4 ITS-90
3 23 - 33 Salinity PSU f11.4 PSS-78
4 34 - 44 Dissolved oxygen umol/kg f11.3
5 45 - 55 Flag - i11 1 - 7 : space
8 : flag of pressure
9 : flag of temperature
10 : flag of salinity
11 : flag of dissolved oxygen
* reference : 'Definition of Quality Control Flags'
6 56 - 57 Terminator - - CR+LF
  1. Each contents of the data part is stored in 11 bytes.
  2. Missing value is presented by '-5', and error value is presented by '-9'.

Definition of Quality Control Flags
  1. Depth Flags
  2. 0 - accepted value
    1 - error in recorded depth ( same or less than previous depth )
    2 - density inversion

  3. Observed Level Flags
  4. N - missing value
    0 - accepted value
    1 - range outlier ( outside of broad range check )
    2 - failed inversion check
    3 - failed gradient check
    4 - zero anomaly
    5 - failed combined gradient and inversion checks
    6 - failed range and inversion checks
    7 - failed range and gradient checks
    8 - failed range and zero anomaly checks
    9 - failed range and combined gradient and inversion checks
    A - failed visual check

    QCed data were added flag according to the NODC (National Oceanographic Data Center) quality control procedure, additionally visually checked. Please see the site of NODC of the following link for quality control procedure.

Related Information

Update History

2017-06-22
An observation data was registerd.
2014-07-31
An observation data was registerd.
2014-02-15
An observation data was registerd.
2014-02-13
An observation data was registerd.
2013-03-26
An observation data was registerd.
2012-10-27
An observation data was registerd.