MIRAI MR04-07 Conductivity-Temperature-Depth Profiler (CTD)

Last Modified: 2017-08-24
: MR04-07
: Processed (PI)
: JAMSTEC
: Pressure, Temperature, Salinity, Dissolved oxygen
:
OCEANS > OCEAN CHEMISTRY > OXYGEN
OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
OCEANS > SALINITY/DENSITY > SALINITY

For Using Data

Shuichi Watanabe (JAMSTEC)
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 MR04-07 cruise are presented in “System”.
The following software, developed and supplied by the Sea-Bird Electronics, Inc., was used in MR04-07.
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 : 031359
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 : 430394
Measurement range : 120% of surface saturation
Accuracy : 2% of saturation

(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) The time and position presented in the header is at the starting time of cast.
: MR04-07
: Processed (PI)
: 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
001_02_ct1.csv
002_01_ct1.csv
002_02_ct1.csv
002_03_ct1.csv
003_01_ct1.csv
004_01_ct1.csv
005_01_ct1.csv
006_01_ct1.csv
006_02_ct1.csv
007_01_ct1.csv
008_01_ct1.csv
009_01_ct1.csv
010_01_ct1.csv
010_02_ct1.csv
010_03_ct1.csv
011_01_ct1.csv
012_01_ct1.csv
013_01_ct1.csv
013_02_ct1.csv
014_01_ct1.csv
015_01_ct1.csv
016_01_ct1.csv
017_01_ct1.csv
017_02_ct1.csv
018_01_ct1.csv
019_01_ct1.csv
019_02_ct1.csv
020_01_ct1.csv
021_01_ct1.csv
021_02_ct1.csv
022_01_ct1.csv
023_01_ct1.csv
023_02_ct1.csv
024_01_ct1.csv
025_01_ct1.csv
026_01_ct1.csv
026_02_ct1.csv
027_01_ct1.csv
028_01_ct1.csv
028_02_ct1.csv
029_01_ct1.csv
030_01_ct1.csv
031_01_ct1.csv
031_02_ct1.csv
032_01_ct1.csv
033_01_ct1.csv
033_02_ct1.csv
033_03_ct1.csv
Observation List
The list of observation is shown as follows.
Observation Time and Date Lat. [°] Lon. [°]
001_02_ct1 2004-11-20 13:05 35.0070 154.9990
002_01_ct1 2004-11-20 23:05 34.0110 155.0360
002_02_ct1 2004-11-21 01:02 34.0400 155.1140
002_03_ct1 2004-11-21 07:05 34.0120 155.0290
003_01_ct1 2004-11-21 16:03 33.0000 155.0020
004_01_ct1 2004-11-22 02:06 32.0010 154.9990
005_01_ct1 2004-11-22 10:03 31.0020 155.0020
006_01_ct1 2004-11-22 18:05 30.0020 155.0000
006_02_ct1 2004-11-23 01:02 29.9840 154.9880
007_01_ct1 2004-11-23 06:04 29.0000 155.0000
008_01_ct1 2004-11-23 17:01 27.5080 154.9980
009_01_ct1 2004-11-24 04:03 26.0010 154.9990
010_01_ct1 2004-11-24 23:04 24.4900 155.0310
010_02_ct1 2004-11-25 01:00 24.4900 155.0460
010_03_ct1 2004-11-25 07:03 24.5000 154.9940
011_01_ct1 2004-11-25 17:04 23.0020 154.9980
012_01_ct1 2004-11-26 04:05 21.5000 155.0000
013_01_ct1 2004-11-26 20:00 20.0000 155.0010
013_02_ct1 2004-11-27 02:03 19.9980 155.0010
014_01_ct1 2004-11-27 07:03 19.0040 154.9980
015_01_ct1 2004-11-27 16:00 18.0010 154.9960
016_01_ct1 2004-11-28 08:00 17.0000 154.9980
017_01_ct1 2004-11-28 20:03 15.9960 154.9990
017_02_ct1 2004-11-29 03:00 16.0010 155.0000
018_01_ct1 2004-11-29 08:01 15.0040 154.9990
019_01_ct1 2004-11-29 16:02 14.0040 154.9980
019_02_ct1 2004-11-30 04:02 13.9980 155.0020
020_01_ct1 2004-11-30 11:03 13.0000 154.9990
021_01_ct1 2004-11-30 19:05 12.0000 155.0000
021_02_ct1 2004-12-01 03:00 12.0010 154.9990
022_01_ct1 2004-12-01 07:04 11.0010 155.0020
023_01_ct1 2004-12-01 16:01 10.0010 154.9990
023_02_ct1 2004-12-02 03:00 10.0010 155.0010
024_01_ct1 2004-12-02 08:04 9.0000 155.0000
025_01_ct1 2004-12-02 16:05 8.0010 155.0000
026_01_ct1 2004-12-03 00:03 6.9970 155.0040
026_02_ct1 2004-12-03 05:03 7.0020 155.0020
027_01_ct1 2004-12-03 13:00 6.0010 155.0000
028_01_ct1 2004-12-03 20:01 5.0870 155.0000
028_02_ct1 2004-12-04 05:04 5.0830 155.0020
029_01_ct1 2004-12-04 10:01 4.0880 155.0000
030_01_ct1 2004-12-04 17:01 3.0020 155.0010
031_01_ct1 2004-12-05 00:03 2.0000 154.9980
031_02_ct1 2004-12-05 03:00 2.0020 155.0000
032_01_ct1 2004-12-05 09:03 1.0000 155.0010
033_01_ct1 2004-12-05 17:03 0.0000 155.0000
033_02_ct1 2004-12-06 01:02 0.0000 155.0020
033_03_ct1 2004-12-06 03:02 0.0020 155.0000
: MR04-07
: Processed (PI)
: JAMSTEC

CTD WOCE-type2


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'.

Related Information

Update History

2017-08-24
An observation data was registerd.
2014-07-25
An observation data was registerd.
2013-03-27
An observation data was registerd.
2012-11-25
An observation data was registerd.