MIRAI MR00-K01 Conductivity-Temperature-Depth Profiler (CTD)

Last Modified: 2017-06-22
: MR00-K01
: Processed (DMO)-QCed
: 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 MR00-K01 cruise are presented in “System”.
The following software, developed and supplied by the Sea-Bird Electronics, Inc., was used in MR00-K01.
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 : 51190
Measurement range : up to 10500m
Accuracy : 0.015% F.S.
Resolution : 0.001% F.S.
• Pressure sensor
Model : SBE9plus, Sea-Bird Electronics,Inc.
Serial number : 79492
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 : 031524
Measurement range : -5.0 to +35degC
Accuracy : 0.001degC
Resolution : 0.0002degC
• Temperature sensor
Model : SBE3, Sea-Bird Electronics,Inc.
Serial number : 032453
Measurement range : -5.0 to +35degC
Accuracy : 0.001degC
Resolution : 0.0002degC
• Salinity sensor
Model : SBE4, Sea-Bird Electronics,Inc.
Serial number : 041202
Measurement range : 0.0 to 7 S/m
Accuracy : 0.0003 S/m
Resolution : 0.00004 S/m
• Salinity sensor
Model : SBE4, Sea-Bird Electronics,Inc.
Serial number : 042240
Measurement range : 0.0 to 7 S/m
Accuracy : 0.0003 S/m
Resolution : 0.00004 S/m
• DO sensor
Model : SBE13, Sea-Bird Electronics,Inc.
Serial number : 130540
Measurement range : 0 to 15ml/l
Accuracy : 0.1ml/l
Resolution : 0.01ml/l

Sensors used in each cast is as follows.
Cast name Serial number of sensor
Pressure Temperature Salinity Dissolved Oxygen
0001L01 51190 031524 041202 130540
0001L02 51190 031524 041202 130540
0001S01 79492 032453 042240 -
0001S02 79492 032453 042240 -
0021S01 79492 032453 042240 -
0021S02 79492 032453 042240 -
0021L01 51190 031524 041202 130540
0020S01 79492 032453 042240 -
0020L01 51190 031524 041202 130540
0020S02 79492 032453 042240 -
0020S03 79492 032453 042240 -
0019S01 79492 032453 042240 -
0019L01 51190 031524 041202 130540
0019S02 79492 032453 042240 -
0018S01 79492 032453 042240 -
0018L01 51190 031524 041202 130540
0018S02 79492 032453 042240 -
0002L01 51190 031524 041202 130540
0002S01 79492 032453 042240 -
0002L02 51190 031524 041202 130540
0002S02 79492 032453 042240 -
0004L01 51190 031524 041202 130540
0004S01 79492 032453 042240 -
0004S02 79492 032453 042240 -
0004S03 79492 032453 042240 -
0004L03 51190 031524 041202 130540
0004S04 79492 032453 042240 -
0004L04 51190 031524 041202 130540
0004L05 51190 031524 041202 130540
0016S01 79492 032453 042240 -
0016L01 51190 031524 041202 130540
0016S02 79492 032453 042240 -
0017S01 79492 032453 042240 -
0014S01 79492 032453 042240 -
0014S02 79492 032453 042240 -
0014S03 79492 032453 042240 -
0014S04 79492 032453 042240 -
0014S05 79492 032453 042240 -
0014L01 51190 031524 041202 130540
0014L02 51190 031524 041202 130540
0006L01 51190 031524 041202 130540
0006S01 79492 032453 042240 -
0006L02 51190 031524 041202 130540
0006S02 79492 032453 042240 -
0006S03 79492 032453 042240 -
0006S04 79492 032453 042240 -
0006L03 51190 031524 041202 130540
0006S06 79492 032453 042240 -
0007S01 79492 032453 042240 -
0007S02 79492 032453 042240 -
0007S03 79492 032453 042240 -
0007L01 51190 031524 041202 130540
0007L02 51190 031524 041202 130540
0007L03 51190 031524 041202 130540
0008S01 79492 032453 042240 -
0008L01 51190 031524 041202 130540
0008S02 79492 032453 042240 -
0008S03 79492 032453 042240 -
0008L02 51190 031524 041202 130540
0008S04 79492 032453 042240 -
0008L03 51190 031524 041202 130540
0008S05 79492 032453 042240 -
0015S01 79492 032453 042240 -
0015L01 51190 031524 041202 130540
0015S02 79492 032453 042240 -
0015L02 51190 031524 041202 130540
0015L03 51190 031524 041202 130540
0015S03 79492 032453 042240 -
0003S01 79492 032453 042240 -
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.
section Extract rows of data from file.
wildedit Mark a data value with badflag to eliminate wild points.
binavg Average data, basing bins on pressure, depth, scan number, or time range.
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) Water temperature data of this cruise was corrected since it had pressure dependency. Please refer to “data correction” in detail.

: MR00-K01
: Processed (DMO)-QCed
: 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
0001L01.dat
0001L02.dat
0001S01.dat
0001S02.dat
0002L01.dat
0002L02.dat
0002S01.dat
0002S02.dat
0003S01.dat
0004L01.dat
0004L03.dat
0004L04.dat
0004L05.dat
0004S01.dat
0004S02.dat
0004S03.dat
0004S04.dat
0006L01.dat
0006L02.dat
0006L03.dat
0006S01.dat
0006S02.dat
0006S03.dat
0006S04.dat
0006S06.dat
0007L01.dat
0007L02.dat
0007L03.dat
0007S01.dat
0007S02.dat
0007S03.dat
0008L01.dat
0008L02.dat
0008L03.dat
0008S01.dat
0008S02.dat
0008S03.dat
0008S04.dat
0008S05.dat
0014L01.dat
0014L02.dat
0014S01.dat
0014S02.dat
0014S03.dat
0014S04.dat
0014S05.dat
0015L01.dat
0015L02.dat
0015L03.dat
0015S01.dat
0015S02.dat
0015S03.dat
0016L01.dat
0016S01.dat
0016S02.dat
0017S01.dat
0018L01.dat
0018S01.dat
0018S02.dat
0019L01.dat
0019S01.dat
0019S02.dat
0020L01.dat
0020S01.dat
0020S02.dat
0020S03.dat
0021L01.dat
0021S01.dat
0021S02.dat
ex_read2.f (Sample Program)
Observation List
The list of observation is shown as follows.
Observation Time and Date Lat. [°] Lon. [°]
0001L01 2000-01-06 08:51 39.9936 142.5011
0001L02 2000-01-06 10:12 39.9843 142.5008
0001S01 2000-01-07 00:59 40.0021 142.4988
0001S02 2000-01-07 02:20 39.9818 142.4886
0002L01 2000-01-13 01:09 40.0031 147.5093
0002L02 2000-01-13 02:47 40.0136 147.5223
0002S01 2000-01-13 02:08 40.0071 147.5170
0002S02 2000-01-13 05:31 40.0188 147.5496
0003S01 2000-02-04 11:15 43.5003 155.0015
0004L01 2000-01-16 00:38 43.9976 155.0360
0004L03 2000-01-16 22:39 44.0013 154.9901
0004L04 2000-01-17 06:07 44.0155 154.9788
0004L05 2000-01-17 12:02 43.9940 154.9495
0004S01 2000-01-16 02:23 44.0103 155.0453
0004S02 2000-01-16 03:30 44.0000 155.0011
0004S03 2000-01-16 17:52 44.0000 155.0010
0004S04 2000-01-17 00:13 44.0006 154.9745
0006L01 2000-01-25 22:26 50.0088 164.9968
0006L02 2000-01-26 00:10 50.0155 164.9993
0006L03 2000-01-26 10:55 50.0243 164.9958
0006S01 2000-01-25 23:26 50.0168 165.0071
0006S02 2000-01-26 04:32 50.0334 165.0120
0006S03 2000-01-26 05:37 50.0381 165.0051
0006S04 2000-01-26 10:21 50.0220 165.0008
0006S06 2000-01-26 17:50 50.0001 165.0016
0007L01 2000-01-28 02:52 45.0058 165.0103
0007L02 2000-01-28 07:21 44.9973 165.0011
0007L03 2000-01-28 08:37 44.9945 165.0066
0007S01 2000-01-27 22:52 45.0008 165.0018
0007S02 2000-01-27 23:43 44.9973 164.9971
0007S03 2000-01-28 00:49 45.0043 165.0070
0008L01 2000-01-29 05:57 40.0136 165.0033
0008L02 2000-01-30 02:53 40.0043 165.0063
0008L03 2000-01-30 04:15 40.0031 164.9983
0008S01 2000-01-29 05:30 40.0080 165.0048
0008S02 2000-01-29 09:44 40.0165 165.0280
0008S03 2000-01-30 02:25 40.0066 165.0111
0008S04 2000-01-30 03:50 40.0063 165.0008
0008S05 2000-01-30 17:49 39.9990 165.0010
0014L01 2000-01-23 10:52 39.9995 155.0186
0014L02 2000-01-23 12:05 39.9971 155.0065
0014S01 2000-01-23 00:52 40.0001 154.9956
0014S02 2000-01-23 03:57 39.9730 154.9993
0014S03 2000-01-23 05:07 39.9791 155.0089
0014S04 2000-01-23 06:39 39.9823 155.0146
0014S05 2000-01-23 09:54 39.9981 155.0170
0015L01 2000-02-03 22:56 43.9946 154.9871
0015L02 2000-02-04 00:56 43.9958 154.9686
0015L03 2000-02-04 05:01 44.0008 154.9990
0015S01 2000-02-03 21:13 43.9996 154.9990
0015S02 2000-02-04 00:28 43.9971 154.9746
0015S03 2000-02-04 08:40 44.0041 155.0006
0016L01 2000-01-19 12:17 37.5073 147.5093
0016S01 2000-01-19 11:36 37.5013 147.5008
0016S02 2000-01-19 15:15 37.5158 147.5451
0017S01 2000-01-20 06:22 35.0020 147.5020
0018L01 2000-01-10 02:23 32.4970 147.5004
0018S01 2000-01-10 01:40 32.5001 147.4903
0018S02 2000-01-10 05:39 32.4745 147.5471
0019L01 2000-01-09 00:24 32.5051 142.4848
0019S01 2000-01-08 22:56 32.5038 142.4928
0019S02 2000-01-09 04:28 32.5213 142.4893
0020L01 2000-01-08 06:30 35.0215 142.5128
0020S01 2000-01-08 05:39 35.0071 142.5043
0020S02 2000-01-08 08:18 35.0378 142.5290
0020S03 2000-01-08 11:52 35.0454 142.5238
0021L01 2000-01-07 15:39 37.5140 142.4921
0021S01 2000-01-07 13:18 37.5070 142.4995
0021S02 2000-01-07 14:28 37.5130 142.4985
: MR00-K01
: Processed (DMO)-QCed

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.
2014-08-16
An observation data was registerd.
2014-07-12
An observation data was registerd.
2014-01-11
An observation data was registerd.
2013-03-26
An observation data was registerd.
2012-12-25
An observation data was registerd.