MIRAI MR04-04 Conductivity-Temperature-Depth Profiler (CTD)

Last Modified: 2017-08-24
: MR04-04
: 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 MR04-04 cruise are presented in “System”.
The following software, developed and supplied by the Sea-Bird Electronics, Inc., was used in MR04-04.
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 : 042240
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.
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.
(3) 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.
: MR04-04
: 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
P00101.csv
P00201.csv
P00301.csv
P00401.csv
P00501.csv
P00601.csv
P00701.csv
P00801.csv
P00901.csv
P01001.csv
P01002.csv
P01101.csv
P01201.csv
P01301.csv
P01401.csv
P01501.csv
P01601.csv
P01602.csv
P01701.csv
P01801.csv
P01901.csv
P02001.csv
P02101.csv
P02201.csv
P02301.csv
P02401.csv
P02402.csv
P02501.csv
P02601.csv
P02701.csv
P02801.csv
P02901.csv
P03001.csv
P03101.csv
P03201.csv
P03301.csv
P03501.csv
P03601.csv
P03701.csv
P03801.csv
P03901.csv
P04001.csv
P04101.csv
PX1101.csv
PX1201.csv
PX3401.csv
Observation List
The list of observation is shown as follows.
Observation Time and Date Lat. [°] Lon. [°]
P00101 2004-08-10 00:00 35.0018 155.0003
P00201 2004-08-10 00:00 35.9868 155.0002
P00301 2004-08-11 00:00 36.9872 154.9977
P00401 2004-08-11 00:00 37.9955 154.9982
P00501 2004-08-11 00:00 38.9960 155.0020
P00601 2004-08-12 00:00 39.9917 155.0008
P00701 2004-08-12 00:00 40.9915 155.0032
P00801 2004-08-13 00:00 41.9925 155.0020
P00901 2004-08-13 00:00 42.9985 154.9547
P01001 2004-08-13 00:00 44.0002 154.9990
P01002 2004-08-13 00:00 44.0002 155.0010
P01101 2004-08-14 00:00 44.6147 154.3378
P01201 2004-08-15 00:00 45.2523 153.6615
P01301 2004-08-15 00:00 45.8667 152.9997
P01401 2004-08-15 00:00 46.3208 152.5135
P01501 2004-08-16 00:00 45.5075 157.4810
P01601 2004-08-16 00:00 47.0000 159.9973
P01602 2004-08-16 00:00 46.9967 159.9995
P01701 2004-08-17 00:00 48.0548 161.2843
P01801 2004-08-17 00:00 48.8338 160.0007
P01901 2004-08-18 00:00 49.4933 158.7663
P02001 2004-08-18 00:00 49.8713 158.0238
P02101 2004-08-18 00:00 50.2840 157.5163
P02201 2004-08-18 00:00 50.4982 156.9180
P02301 2004-08-19 00:00 49.5642 163.1742
P02401 2004-08-20 00:00 51.0022 165.0015
P02402 2004-08-20 00:00 50.9997 164.9982
P02501 2004-08-21 00:00 51.9890 166.1532
P02601 2004-08-21 00:00 52.8185 166.8190
P02701 2004-08-21 00:00 53.6652 167.3328
P02801 2004-08-22 00:00 54.1660 167.6652
P02901 2004-08-23 00:00 55.5477 164.8717
P03001 2004-08-23 00:00 55.6640 164.5533
P03101 2004-08-23 00:00 55.7668 164.2480
P03201 2004-08-23 00:00 55.8833 163.9152
P03301 2004-08-24 00:00 55.9975 163.5548
P03501 2004-08-25 00:00 56.9988 164.9937
P03601 2004-08-25 00:00 57.0003 167.4682
P03701 2004-08-25 00:00 56.9992 169.9755
P03801 2004-08-26 00:00 57.0010 172.4980
P03901 2004-08-26 00:00 56.9992 174.9625
P04001 2004-08-26 00:00 56.9997 177.4988
P04101 2004-08-27 00:00 57.0018 179.9983
PX1101 2004-08-18 00:00 50.3915 157.2163
PX1201 2004-08-20 00:00 50.2668 164.0647
PX3401 2004-08-24 00:00 56.9507 164.1643
: MR04-04
: Processed (PI)
: JAMSTEC

CTD WOCE-type1


Format Description for the Processed (PI) 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.
2014-07-24
An observation data was registerd.
2013-03-27
An observation data was registerd.
2012-11-25
An observation data was registerd.