MIRAI MR98-K01 Conductivity-Temperature-Depth Profiler (CTD)

Last Modified: 2017-06-22
: MR98-K01
: 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 MR98-K01 cruise are presented in “System”.
The following software, developed and supplied by the Sea-Bird Electronics, Inc., was used in MR98-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 : 42410
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 : 42423
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 : 031359
Measurement range : -5.0 to +35degC
Accuracy : 0.001degC
Resolution : 0.0002degC
• Temperature sensor
Model : SBE3, Sea-Bird Electronics,Inc.
Serial number : 031525
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 : 041205
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 : 130338
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
98K101L142410031359041202130338
98K101S142423031525041205-
98K101S242423031525041205-
98K101S342423031525041205-
98K101S442423031525041205-
98K101S542423031525041205-
98K107L142410031359041202130338
98K1K1S142423031525041205-
98K1K1L142410031359041202130338
98K1K1L242410031359041202130338
98K1K1S242423031525041205-
98K1K1L342410031359041202130338
98K1K1L442410031359041202130338
98K1K1L542410031359041202130338
98K1K1S342423031525041205-
98K1K1S442423031525041205-
98K1K1S542423031525041205-
98K1K1S642423031525041205-
98K1K1S742423031525041205-
98K1K1S842423031525041205-
98K102L142410031359041202130338
98K102S142423031525041205-
98K102L242410031359041202130338
98K119S142423031525041205-
98K119L142410031359041202130338
98K119S242423031525041205-
98K119L242410031359041202130338
98K108L142410031359041202130338
98K108S142423031525041205-
98K108L242410031359041202130338
98K108S242423031525041205-
98K108L342410031359041202130338
98K109L142410031359041202130338
98K109S142423031525041205-
98K110S142423031525041205-
98K110L142410031359041202130338
98K110S242423031525041205-
98K110L242410031359041202130338
98K111L142410031359041202130338
98K111S142423031525041205-
98K111L242410031359041202130338
98K111S242423031525041205-
98K112S142423031525041205-
98K112L142410031359041202130338
98K112L242410031359041202130338
98K112S242423031525041205-
98K113S142423031525041205-
98K113S242423031525041205-
98K113L142410031359041202130338
98K114L142410031359041202130338
98K114S142423031525041205-
98K114L242410031359041202130338
98K114S242423031525041205-
98K115S142423031525041205-
98K115L142410031359041202130338
98K115S242423031525041205-
98K116L142410031359041202130338
98K116S142423031525041205-
98K116L242410031359041202130338
98K116S242423031525041205-
98K117S142423031525041205-
98K117L142410031359041202130338
98K117S342423031525041205-
98K117L242410031359041202130338
98K118S142423031525041205-
98K118L142410031359041202130338
98K118S242423031525041205-
98K120S142423031525041205-
98K120L142410031359041202130338
98K120S242423031525041205-
98K120L242410031359041202130338
98K120L342410031359041202130338
98K120L442410031359041202130338
98K1K2L142410031359041202130338
98K1K2L242410031359041202130338
98K1K2S142423031525041205-
98K1K2L342410031359041202130338
98K1K2S242423031525041205-
98K1K2L442410031359041202130338
98K1K2L542410031359041202130338
98K1K2S342423031525041205-
98K1K2S442423031525041205-
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.
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.
: MR98-K01
: 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
98K101L1.dat
98K101S1.dat
98K101S2.dat
98K101S3.dat
98K101S4.dat
98K101S5.dat
98K102L1.dat
98K102L2.dat
98K102S1.dat
98K107L1.dat
98K108L1.dat
98K108L2.dat
98K108L3.dat
98K108S1.dat
98K108S2.dat
98K109L1.dat
98K109S1.dat
98K110L1.dat
98K110L2.dat
98K110S1.dat
98K110S2.dat
98K111L1.dat
98K111L2.dat
98K111S1.dat
98K111S2.dat
98K112L1.dat
98K112L2.dat
98K112S1.dat
98K112S2.dat
98K113L1.dat
98K113S1.dat
98K113S2.dat
98K114L1.dat
98K114L2.dat
98K114S1.dat
98K114S2.dat
98K115L1.dat
98K115S1.dat
98K115S2.dat
98K116L1.dat
98K116L2.dat
98K116S1.dat
98K116S2.dat
98K117L1.dat
98K117L2.dat
98K117S1.dat
98K117S3.dat
98K118L1.dat
98K118S1.dat
98K118S2.dat
98K119L1.dat
98K119L2.dat
98K119S1.dat
98K119S2.dat
98K120L1.dat
98K120L2.dat
98K120L3.dat
98K120L4.dat
98K120S1.dat
98K120S2.dat
98K1K1L1.dat
98K1K1L2.dat
98K1K1L3.dat
98K1K1L4.dat
98K1K1L5.dat
98K1K1S1.dat
98K1K1S2.dat
98K1K1S3.dat
98K1K1S4.dat
98K1K1S5.dat
98K1K1S6.dat
98K1K1S7.dat
98K1K1S8.dat
98K1K2L1.dat
98K1K2L2.dat
98K1K2L3.dat
98K1K2L4.dat
98K1K2L5.dat
98K1K2S1.dat
98K1K2S2.dat
98K1K2S3.dat
98K1K2S4.dat
ex_read2.f (Sample Program)
Observation List
The list of observation is shown as follows.
Observation Time and Date Lat. [°] Lon. [°]
98K101L1 1998-11-03 09:16 41.9995 151.9960
98K101S1 1998-11-03 14:14 41.9723 151.9946
98K101S2 1998-11-03 17:59 41.9643 151.9983
98K101S3 1998-11-03 19:28 41.9555 152.0108
98K101S4 1998-11-03 20:13 41.9486 152.0186
98K101S5 1998-11-03 20:44 41.9413 152.0226
98K102L1 1998-11-10 14:00 48.0061 160.0053
98K102L2 1998-11-11 20:49 47.9248 159.4811
98K102S1 1998-11-11 19:20 47.9301 159.4723
98K107L1 1998-11-04 22:59 41.9973 157.8321
98K108L1 1998-11-19 14:37 39.9963 145.0086
98K108L2 1998-11-19 23:33 39.9971 145.0415
98K108L3 1998-11-20 01:40 39.9885 145.0508
98K108S1 1998-11-19 19:08 40.0058 145.0278
98K108S2 1998-11-20 00:53 39.9930 145.0493
98K109L1 1998-11-20 15:52 37.4870 144.9813
98K109S1 1998-11-20 18:49 37.4651 144.9701
98K110L1 1998-11-25 09:50 34.9920 145.0008
98K110L2 1998-11-25 13:52 34.9980 144.9953
98K110S1 1998-11-25 07:18 34.9961 145.0026
98K110S2 1998-11-25 12:59 35.0018 144.9960
98K111L1 1998-11-26 07:06 35.0001 149.9998
98K111L2 1998-11-26 13:41 35.0561 150.0040
98K111S1 1998-11-26 12:27 35.0463 150.0004
98K111S2 1998-11-26 14:44 35.0730 150.0178
98K112L1 1998-11-27 09:48 37.4784 149.9610
98K112L2 1998-11-27 13:56 37.5058 149.9970
98K112S1 1998-11-27 07:21 37.4963 149.9955
98K112S2 1998-11-27 17:46 37.4878 149.9418
98K113L1 1998-11-29 05:05 40.0465 149.9836
98K113S1 1998-11-28 21:17 40.0493 150.0001
98K113S2 1998-11-29 01:36 40.0480 149.9856
98K114L1 1998-11-30 00:57 39.9985 155.0001
98K114L2 1998-11-30 04:54 39.9903 155.0186
98K114S1 1998-11-30 03:46 39.9980 155.0038
98K114S2 1998-11-30 05:45 39.9766 155.0091
98K115L1 1998-11-30 21:52 37.5021 154.9995
98K115S1 1998-11-30 19:22 37.4970 154.9996
98K115S2 1998-12-01 00:21 37.5056 155.0023
98K116L1 1998-12-01 11:59 35.0006 154.9970
98K116L2 1998-12-01 15:38 35.0030 154.9976
98K116S1 1998-12-01 14:49 34.9978 154.9933
98K116S2 1998-12-01 16:48 35.0010 155.0015
98K117L1 1998-12-03 03:42 34.9931 160.0175
98K117L2 1998-12-03 08:09 34.9878 160.0486
98K117S1 1998-12-03 00:10 34.9876 160.0306
98K117S3 1998-12-03 07:03 34.9843 160.0410
98K118L1 1998-12-03 22:34 37.5013 159.9895
98K118S1 1998-12-03 20:21 37.5005 160.0000
98K118S2 1998-12-04 01:03 37.5013 159.9845
98K119L1 1998-11-16 19:33 39.9896 159.9866
98K119L2 1998-11-17 01:47 40.0076 159.9873
98K119S1 1998-11-16 14:55 39.9958 160.0070
98K119S2 1998-11-17 00:32 40.0215 159.9685
98K120L1 1998-12-05 06:02 40.0126 164.9860
98K120L2 1998-12-05 13:37 40.0596 164.9593
98K120L3 1998-12-08 04:00 39.9986 165.0088
98K120L4 1998-12-08 09:10 40.0075 164.9621
98K120S1 1998-12-05 05:07 40.0133 164.9930
98K120S2 1998-12-05 10:14 40.0580 164.9656
98K1K1L1 1998-11-07 10:45 43.9936 154.9845
98K1K1L2 1998-11-07 20:42 43.9973 154.8941
98K1K1L3 1998-11-08 02:26 44.0508 154.9068
98K1K1L4 1998-11-08 03:42 44.0491 154.9270
98K1K1L5 1998-11-08 05:34 44.0456 154.9506
98K1K1S1 1998-11-07 04:55 43.9886 154.9411
98K1K1S2 1998-11-08 01:36 44.0443 154.8966
98K1K1S3 1998-11-09 00:22 44.0394 154.9745
98K1K1S4 1998-11-09 01:36 44.0379 154.9683
98K1K1S5 1998-11-09 02:16 44.0385 154.9643
98K1K1S6 1998-11-09 06:24 44.0371 154.9731
98K1K1S7 1998-11-09 10:56 44.0476 154.9861
98K1K1S8 1998-11-09 12:39 44.0516 154.9858
98K1K2L1 1998-12-10 22:14 44.0041 154.9923
98K1K2L2 1998-12-11 02:04 44.0088 155.0075
98K1K2L3 1998-12-11 09:01 43.9996 155.0303
98K1K2L4 1998-12-11 10:36 43.9833 155.0370
98K1K2L5 1998-12-11 12:32 43.9833 155.0415
98K1K2S1 1998-12-11 05:47 44.0113 155.0186
98K1K2S2 1998-12-11 09:56 43.9906 155.0306
98K1K2S3 1998-12-12 04:01 44.0005 154.9986
98K1K2S4 1998-12-12 07:48 44.0038 154.9923
: MR98-K01
: 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.
2014-08-19
An observation data was registerd.
2014-07-12
An observation data was registerd.
2014-02-06
An observation data was registerd.
2013-03-27
An observation data was registerd.
2013-01-25
An observation data was registerd.