MIRAI MR02-K03 Conductivity-Temperature-Depth Profiler (CTD)

Last Modified: 2017-06-22
: MR02-K03
: 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 MR02-K03 cruise are presented in “System”.
The following software, developed and supplied by the Sea-Bird Electronics, Inc., was used in MR02-K03.
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 : 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 : 031464
Measurement range : -5.0 to +35degC
Accuracy : 0.001degC
Resolution : 0.0002degC
• Salinity sensor
Model : SBE4, Sea-Bird Electronics,Inc.
Serial number : 041203
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 : 430205
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
001m01 79492 031464 041203 430205
002m01 79492 031464 041203 430205
p11m01 79492 031464 041203 430205
p12m01 79492 031464 041203 430205
p16m01 79492 031464 041203 430205
p15m01 79492 031464 041203 430205
p14m01 79492 031464 041203 430205
p13m01 79492 031464 041203 430205
p08m01 79492 031464 041203 430205
p07m01 79492 031464 041203 430205
p06m01 79492 031464 041203 430205
p01m01 79492 031464 041203 430205
p02m01 79492 031464 041203 430205
p03m01 79492 031464 041203 430205
os1m01 79492 031464 041203 430205
os2m01 79492 031464 041203 430205
os3m01 79492 031464 041203 430205
os4m01 79492 031464 041203 430205
os5m01 79492 031464 041203 430205
os6m01 79492 031464 041203 430205
ae8m01 79492 031464 041203 430205
ae7m01 79492 031464 041203 430205
ae6m01 79492 031464 041203 430205
ae5m01 79492 031464 041203 430205
ae4m01 79492 031464 041203 430205
ae3m01 79492 031464 041203 430205
ae2m01 79492 031464 041203 430205
ae1m01 79492 031464 041203 430205
201m01 79492 031464 041203 430205
203m01 79492 031464 041203 430205
204m01 79492 031464 041203 430205
205m01 79492 031464 041203 430205
207m01 79492 031464 041203 430205
208m01 79492 031464 041203 430205
208m02 79492 031464 041203 430205
209m01 79492 031464 041203 430205
210m01 79492 031464 041203 430205
211m01 79492 031464 041203 430205
210m02 79492 031464 041203 430205
211m02 79492 031464 041203 430205
212m01 79492 031464 041203 430205
212m02 79492 031464 041203 430205
213m01 79492 031464 041203 430205
214m01 79492 031464 041203 430205
214m02 79492 031464 041203 430205
215m01 79492 031464 041203 430205
216m01 79492 031464 041203 430205
216m02 79492 031464 041203 430205
217m01 79492 031464 041203 430205
218m01 79492 031464 041203 430205
218m02 79492 031464 041203 430205
219m01 79492 031464 041203 430205
220m01 79492 031464 041203 430205
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.
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.
loopedit Mark a scan with badflag if scan fails pressure reversal or minimum velocity tests.
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 (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.
: MR02-K03
: 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
001m01.dat
002m01.dat
201m01.dat
203m01.dat
204m01.dat
205m01.dat
207m01.dat
208m01.dat
208m02.dat
209m01.dat
210m01.dat
210m02.dat
211m01.dat
211m02.dat
212m01.dat
212m02.dat
213m01.dat
214m01.dat
214m02.dat
215m01.dat
216m01.dat
216m02.dat
217m01.dat
218m01.dat
218m02.dat
219m01.dat
220m01.dat
ae1m01.dat
ae2m01.dat
ae3m01.dat
ae4m01.dat
ae5m01.dat
ae6m01.dat
ae7m01.dat
ae8m01.dat
os1m01.dat
os2m01.dat
os3m01.dat
os4m01.dat
os5m01.dat
os6m01.dat
p01m01.dat
p02m01.dat
p03m01.dat
p06m01.dat
p07m01.dat
p08m01.dat
p11m01.dat
p12m01.dat
p13m01.dat
p14m01.dat
p15m01.dat
p16m01.dat
ex_read2.f (Sample Program)
Observation List
The list of observation is shown as follows.
Observation Time and Date Lat. [°] Lon. [°]
001m01 2002-05-27 04:03 30.7755 134.3779
002m01 2002-05-28 04:11 28.1088 130.6593
201m01 2002-06-08 01:58 31.2648 144.4915
203m01 2002-06-10 03:13 34.2036 146.5686
204m01 2002-06-11 01:52 35.4218 146.4856
205m01 2002-06-13 06:53 37.6614 150.0120
207m01 2002-06-14 23:05 32.2518 146.5021
208m01 2002-06-15 04:10 32.5000 146.5016
208m02 2002-06-15 08:16 32.4880 146.5130
209m01 2002-06-15 11:07 32.7503 146.4985
210m01 2002-06-15 15:58 32.9996 146.5015
210m02 2002-06-16 02:32 33.0005 146.5001
211m01 2002-06-15 21:42 33.2493 146.5031
211m02 2002-06-16 04:25 33.2501 146.5010
212m01 2002-06-16 06:40 33.4975 146.5029
212m02 2002-06-16 10:15 33.4675 146.5486
213m01 2002-06-16 12:16 33.7456 146.5038
214m01 2002-06-16 18:00 33.9963 146.5029
214m02 2002-06-16 22:29 33.9993 146.5021
215m01 2002-06-17 01:18 34.2451 146.5023
216m01 2002-06-17 06:25 34.4946 146.5001
216m02 2002-06-17 10:25 34.5000 146.5006
217m01 2002-06-17 12:58 34.7475 146.4998
218m01 2002-06-17 18:08 34.9981 146.5018
218m02 2002-06-17 21:42 34.9981 146.5015
219m01 2002-06-18 00:15 35.2455 146.5003
220m01 2002-06-18 05:03 35.4990 146.5004
ae1m01 2002-06-03 21:45 28.1338 129.8258
ae2m01 2002-06-03 19:55 28.0160 129.9088
ae3m01 2002-06-03 17:25 27.8348 130.0003
ae4m01 2002-06-03 14:55 27.6941 130.0880
ae5m01 2002-06-03 11:26 27.5560 130.1731
ae6m01 2002-06-03 07:39 27.4150 130.2581
ae7m01 2002-06-03 02:26 27.2775 130.3466
ae8m01 2002-06-02 21:48 27.1336 130.4416
os1m01 2002-06-01 14:24 26.0768 127.9571
os2m01 2002-06-01 15:31 26.0183 128.0023
os3m01 2002-06-01 18:08 25.8796 128.0560
os4m01 2002-06-01 21:25 25.7101 128.1336
os5m01 2002-06-01 23:59 25.5500 128.2070
os6m01 2002-06-02 04:25 25.3785 128.2851
p01m01 2002-05-31 23:28 26.1228 128.0183
p02m01 2002-06-01 02:13 26.0243 128.1353
p03m01 2002-06-01 06:27 25.8848 128.2763
p06m01 2002-05-31 10:52 26.4310 128.2406
p07m01 2002-05-31 08:54 26.2951 128.3595
p08m01 2002-05-31 05:23 26.2175 128.5714
p11m01 2002-05-29 08:10 27.9726 129.8700
p12m01 2002-05-29 10:48 27.8808 129.7756
p13m01 2002-05-30 00:04 27.6678 129.7233
p14m01 2002-05-29 19:37 27.5961 130.0578
p15m01 2002-05-29 15:57 27.6681 130.1365
p16m01 2002-05-29 13:31 27.7886 130.1578
: MR02-K03
: 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.
2014-07-18
An observation data was registerd.
2014-02-06
An observation data was registerd.
2014-02-05
An observation data was registerd.
2013-03-27
An observation data was registerd.
2012-12-25
An observation data was registerd.