MIRAI MR09-03 Leg2 Expendable Conductivity-Temperature-Depth Profiler (XCTD)

Last Modified: 2019-08-31
: MR09-03 Leg2
: Processed (DMO)-QCed
: JAMSTEC
: Depth, Temperature, Salinity
:
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:
Expendable conductivity temperature depth measurements (XCTD) ( - MR11-E02)
Using XCTD (eXpendable Conductivity Temperature Depth profiler) system, the vertical distribution of water temperature and salinity are observed during free fall of its probe part in the seawater. Observed temperature and conductivity are transmitted to the data processor on board by the digital signal. The digital signal is converted to the temperature, conductivity and depth by data processor as binary data. Binary data is transmitted from data processor to PC. The PC calculates salinity from temperature, conductivity and depth, and those properties are recorded in PC as the ASCII files.

(1) Launcher
Hand launcher
Manufacturer : Sippican,Inc.
Operation area : Rear upper deck

Automatic launcher
Manufacturer : Tsurumi Seiki Co., LTD.
Location : Port side of rear upper deck (4m from the sea level). The control panel is installed in the investigation room.

(2) Converter
Manufacturer : Tsurumi Seiki Co., LTD.
Location : Investigation room
Sampling rate : 40 msec

(3) XCTD probe specifications
Probe Type TSK XCTD-1 TSK XCTD-2 TSK XCTD-3 TSK XCTD-4
Temperature range [deg-C] -2 to 35
Temperature accuracy [deg-C] +/- 0.02
Temperature resolution [deg-C] 0.01
Conductivity range [mS/cm] 0 to 60
Conductivity accuracy [mS/cm] +/- 0.03
Conductivity resolution [mS/cm] 0.015
Measurment depth [m] 1000 1850 1000 1850
Depth accuracy [m] 5 or +/- 2% of depth; whichever is larger
Maximum elapsed time [sec] 300 600 200 502
Rated ship speed [knot] 12 3.5 20 6

Since XCTD carries no pressure sensor, we need to estimate depth from the elapsed time. The fall-rate equation is as follows.

Z = at + 10E-3 * bt2

Where Z(m) is the depth and t(sec) is the elapsed time.

In addition, coefficients of the fall-rate equation are different by probe types.

Probe Type TSK XCTD-1 TSK XCTD-2 TSK XCTD-3 TSK XCTD-4
Coefficient-a 3.42543 3.43898 5.07598 3.68081
Coefficient-b -0.47 -0.31 -0.72 -0.47
* Coefficients listed above are supplied by Sippican, Inc., in USA.

The list of an XCTD type used in each cast is as follows.

Cast name Probe Serial No. Probe Type Launcher Converter
200909121631 08069536 XCTD-1 Auto MK-130
200909150309 08069546 XCTD-1 Auto MK-130
200909150357 08069544 XCTD-1 Auto MK-130
200909150449 08069535 XCTD-1 Auto MK-130
200909150547 08069620 XCTD-1 Auto MK-130
200909150636 08069545 XCTD-1 Auto MK-130
200909150726 08069622 XCTD-1 Auto MK-130
200909160407 08069541 XCTD-1 Auto MK-130
200909161441 08069621 XCTD-1 Auto MK-130
200909170040 08069542 XCTD-1 Auto MK-130
200909180738 09022814 XCTD-2 Auto MK-130
200909181227 09012812 XCTD-2 Auto MK-130
200909181348 09012813 XCTD-2 Auto MK-130
200909182258 09022822 XCTD-2 Auto MK-130
200909190012 09022819 XCTD-2 Auto MK-130
200909190113 09022820 XCTD-2 Auto MK-130
200909190556 09022818 XCTD-2 Auto MK-130
200909190653 09022815 XCTD-2 Auto MK-130
200909190749 09022823 XCTD-2 Auto MK-130
200909191208 09022821 XCTD-2 Auto MK-130
200909191258 09022817 XCTD-2 Auto MK-130
200909191348 09022816 XCTD-2 Auto MK-130
200909192159 09022845 XCTD-2 Auto MK-130
200909192250 09022847 XCTD-2 Auto MK-130
200909192343 09022846 XCTD-2 Auto MK-130
200909200449 09022843 XCTD-2 Auto MK-130
200909200554 09022842 XCTD-2 Auto MK-130
200909200653 09022844 XCTD-2 Auto MK-130
200909200751 09022840 XCTD-2 Auto MK-130
200909201437 09022841 XCTD-2 Auto MK-130
200909201610 09022839 XCTD-2 Hand MK-130
200909201732 09022836 XCTD-2 Hand MK-130
200909211059 08069543 XCTD-1 Auto MK-130
200909211159 08069539 XCTD-1 Auto MK-130
200909220059 08069537 XCTD-1 Auto MK-130
200909220403 08069540 XCTD-1 Auto MK-130
200909221227 09064410 XCTD-1 Auto MK-130
200909221525 09064413 XCTD-1 Auto MK-130
200909222149 09064411 XCTD-1 Auto MK-130
200909222224 09064414 XCTD-1 Auto MK-130
200909222301 09064404 XCTD-1 Auto MK-130
200909222338 09064407 XCTD-1 Auto MK-130
200909231100 09064415 XCTD-1 Auto MK-130
200909231235 09064412 XCTD-1 Auto MK-130
200909231319 09064408 XCTD-1 Auto MK-130
200909231427 09064406 XCTD-1 Auto MK-130
200909231536 09064405 XCTD-1 Auto MK-130
200909232104 09064438 XCTD-1 Auto MK-130
200909232213 09064409 XCTD-1 Auto MK-130
200909240217 09064437 XCTD-1 Auto MK-130
200909241114 09064439 XCTD-1 Auto MK-130
200909241950 09064436 XCTD-1 Auto MK-130
200909242024 09064428 XCTD-1 Auto MK-130
200909242107 09064429 XCTD-1 Auto MK-130
200909242222 09064435 XCTD-1 Auto MK-130
200909242337 09064433 XCTD-1 Auto MK-130
200909250051 09064431 XCTD-1 Auto MK-130
200909250215 09064434 XCTD-1 Auto MK-130
200909250322 09064432 XCTD-1 Auto MK-130
200909251234 09064440 XCTD-1 Auto MK-130
200909251607 09064441 XCTD-1 Auto MK-130
200909251646 09064442 XCTD-1 Auto MK-130
200909251739 09064430 XCTD-1 Auto MK-130
200909251804 09022826 XCTD-2 Auto MK-130
200909251857 09022837 XCTD-2 Auto MK-130
200909251959 09022832 XCTD-2 Auto MK-130
200909252055 09022829 XCTD-2 Auto MK-130
200909252152 09022838 XCTD-2 Auto MK-130
200909260317 09022825 XCTD-2 Auto MK-130
200909260412 09022831 XCTD-2 Auto MK-130
200909260510 09022827 XCTD-2 Auto MK-130
200909261001 09022824 XCTD-2 Auto MK-130
200909261055 09022828 XCTD-2 Auto MK-130
200909261152 09022835 XCTD-2 Auto MK-130
200909262121 09022830 XCTD-2 Auto MK-130
200909262215 09022834 XCTD-2 Auto MK-130
200909262311 09022833 XCTD-2 Auto MK-130
200909270349 09064446 XCTD-1 Auto MK-130
200909270431 09064445 XCTD-1 Auto MK-130
200909271652 09064448 XCTD-1 Auto MK-130
200909272050 09064450 XCTD-1 Auto MK-130
200909280055 09064451 XCTD-1 Auto MK-130
200909280204 09064444 XCTD-1 Auto MK-130
200909280312 09064443 XCTD-1 Auto MK-130
200909280419 09064447 XCTD-1 Auto MK-130
200909280529 09064550 XCTD-1 Auto MK-130
200909280641 09064553 XCTD-1 Auto MK-130
200909280751 09064449 XCTD-1 Auto MK-130
200909280936 09064552 XCTD-1 Auto MK-130
200909281129 09064549 XCTD-1 Auto MK-130
200910070828 09064551 XCTD-1 Auto MK-130
200910080222 09064548 XCTD-1 Auto MK-130
200910082340 09064557 XCTD-1 Auto MK-130
200910082344 09064559 XCTD-1 Auto MK-130
200910090235 09064556 XCTD-1 Auto MK-130
200910090533 09064558 XCTD-1 Auto MK-130
200910090829 09064555 XCTD-1 Auto MK-130
200910091121 09064554 XCTD-1 Auto MK-130
200910091724 09064545 XCTD-1 Auto MK-130
200910100234 09064542 XCTD-1 Auto MK-130
200910100520 09064547 XCTD-1 Auto MK-130
200910100824 09064546 XCTD-1 Auto MK-130
(1) For sensor's stablility, values of less than 1 m for temperature and less than 3 m for salinity are replaced by missing values, respectively, based on manufacturer's recommendation.

(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.
: MR09-03 Leg2
: Processed (DMO)-QCed
: JAMSTEC
: Depth, Temperature, Salinity
:
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
200909121631.dat
200909150309.dat
200909150357.dat
200909150449.dat
200909150547.dat
200909150636.dat
200909150726.dat
200909160407.dat
200909161441.dat
200909170040.dat
200909180738.dat
200909181227.dat
200909181348.dat
200909182258.dat
200909190012.dat
200909190113.dat
200909190556.dat
200909190653.dat
200909190749.dat
200909191208.dat
200909191258.dat
200909191348.dat
200909192159.dat
200909192250.dat
200909192343.dat
200909200449.dat
200909200554.dat
200909200653.dat
200909200751.dat
200909201437.dat
200909201610.dat
200909201732.dat
200909211059.dat
200909211159.dat
200909220059.dat
200909220403.dat
200909221227.dat
200909221525.dat
200909222149.dat
200909222224.dat
200909222301.dat
200909222338.dat
200909231100.dat
200909231235.dat
200909231319.dat
200909231427.dat
200909231536.dat
200909232104.dat
200909232213.dat
200909240217.dat
200909241114.dat
200909241950.dat
200909242024.dat
200909242107.dat
200909242222.dat
200909242337.dat
200909250051.dat
200909250215.dat
200909250322.dat
200909251234.dat
200909251607.dat
200909251646.dat
200909251739.dat
200909251804.dat
200909251857.dat
200909251959.dat
200909252055.dat
200909252152.dat
200909260317.dat
200909260412.dat
200909260510.dat
200909261001.dat
200909261055.dat
200909261152.dat
200909262121.dat
200909262215.dat
200909262311.dat
200909270349.dat
200909270431.dat
200909271652.dat
200909272050.dat
200909280055.dat
200909280204.dat
200909280312.dat
200909280419.dat
200909280529.dat
200909280641.dat
200909280751.dat
200909280936.dat
200909281129.dat
200910070828.dat
200910080222.dat
200910082340.dat
200910082344.dat
200910090235.dat
200910090533.dat
200910090829.dat
200910091121.dat
200910091724.dat
200910100234.dat
200910100520.dat
200910100824.dat
ex_read2.f (Sample Program)
Observation List
The list of observation is shown as follows.
Observation Time and Date Lat. [°] Lon. [°]
200909121631 2009-09-12 16:32 75.1245 -172.7251
200909150309 2009-09-15 03:10 75.6648 -165.6675
200909150357 2009-09-15 03:59 75.8268 -165.6313
200909150449 2009-09-15 04:50 75.9976 -165.6795
200909150547 2009-09-15 05:48 76.1663 -165.7203
200909150636 2009-09-15 06:37 76.3306 -165.7206
200909150726 2009-09-15 07:27 76.4970 -165.7185
200909160407 2009-09-16 04:08 75.9993 -164.7558
200909161441 2009-09-16 14:43 76.0006 -162.3533
200909170040 2009-09-17 00:42 76.0005 -161.0183
200909180738 2009-09-18 07:40 76.0003 -154.2588
200909181227 2009-09-18 12:28 75.9990 -152.6713
200909181348 2009-09-18 13:49 75.9996 -151.8381
200909182258 2009-09-18 22:59 76.1240 -150.7556
200909190012 2009-09-19 00:14 76.2481 -150.5000
200909190113 2009-09-19 01:14 76.3736 -150.2546
200909190556 2009-09-19 05:57 76.6233 -150.0048
200909190653 2009-09-19 06:54 76.7496 -149.9961
200909190749 2009-09-19 07:50 76.8746 -149.9998
200909191208 2009-09-19 12:09 77.1250 -150.0018
200909191258 2009-09-19 12:59 77.2500 -149.9968
200909191348 2009-09-19 13:49 77.3735 -150.0008
200909192159 2009-09-19 22:00 77.6248 -150.0130
200909192250 2009-09-19 22:51 77.7486 -150.0310
200909192343 2009-09-19 23:44 77.8741 -149.9875
200909200449 2009-09-20 04:50 78.1248 -150.3776
200909200554 2009-09-20 05:56 78.2498 -150.7491
200909200653 2009-09-20 06:54 78.3741 -151.1216
200909200751 2009-09-20 07:52 78.4995 -151.4981
200909201437 2009-09-20 14:38 78.6246 -151.5021
200909201610 2009-09-20 16:11 78.7491 -151.5393
200909201732 2009-09-20 17:33 78.8738 -151.5745
200909211059 2009-09-21 11:00 78.3333 -152.3611
200909211159 2009-09-21 12:00 78.3180 -152.8791
200909220059 2009-09-22 01:00 78.0446 -153.0728
200909220403 2009-09-22 04:04 77.9599 -153.5698
200909221227 2009-09-22 12:28 77.6841 -154.3343
200909221525 2009-09-22 15:26 77.6023 -153.5125
200909222149 2009-09-22 21:50 77.4980 -152.5198
200909222224 2009-09-22 22:25 77.4530 -152.0186
200909222301 2009-09-22 23:02 77.3944 -151.5195
200909222338 2009-09-22 23:39 77.3636 -151.0166
200909231100 2009-09-23 11:01 77.1568 -151.9871
200909231235 2009-09-23 12:36 77.1493 -152.9890
200909231319 2009-09-23 13:21 77.1330 -153.4890
200909231427 2009-09-23 14:28 77.1061 -154.2403
200909231536 2009-09-23 15:37 77.0846 -154.9871
200909232104 2009-09-23 21:06 77.0750 -156.9805
200909232213 2009-09-23 22:14 77.0846 -157.9835
200909240217 2009-09-24 02:18 77.0833 -159.9796
200909241114 2009-09-24 11:15 77.0856 -163.0815
200909241950 2009-09-24 19:51 77.0836 -162.0208
200909242024 2009-09-24 20:26 77.0795 -161.5188
200909242107 2009-09-24 21:08 76.9990 -161.0155
200909242222 2009-09-24 22:23 76.8998 -160.0181
200909242337 2009-09-24 23:38 76.7933 -159.0168
200909250051 2009-09-25 00:52 76.7016 -158.0186
200909250215 2009-09-25 02:16 76.5901 -156.8988
200909250322 2009-09-25 03:24 76.5021 -156.0181
200909251234 2009-09-25 12:35 76.2501 -153.5046
200909251607 2009-09-25 16:08 76.1503 -152.5168
200909251646 2009-09-25 16:47 76.1016 -152.0170
200909251739 2009-09-25 17:40 76.0520 -151.4758
200909251804 2009-09-25 18:06 76.0010 -151.5041
200909251857 2009-09-25 18:58 76.0003 -151.0058
200909251959 2009-09-25 20:00 75.8761 -151.2468
200909252055 2009-09-25 20:57 75.7513 -151.4968
200909252152 2009-09-25 21:53 75.6261 -151.7470
200909260317 2009-09-26 03:19 75.3764 -152.2495
200909260412 2009-09-26 04:13 75.2505 -152.4995
200909260510 2009-09-26 05:11 75.1251 -152.7913
200909261001 2009-09-26 10:02 74.8755 -153.2565
200909261055 2009-09-26 10:56 74.7506 -153.4856
200909261152 2009-09-26 11:53 74.6246 -153.7536
200909262121 2009-09-26 21:22 74.3773 -154.2381
200909262215 2009-09-26 22:16 74.2516 -154.4731
200909262311 2009-09-26 23:13 74.1268 -154.7324
200909270349 2009-09-27 03:50 73.8788 -155.2020
200909270431 2009-09-27 04:32 73.7520 -155.4178
200909271652 2009-09-27 16:53 73.5120 -155.9503
200909272050 2009-09-27 20:51 73.5410 -157.5001
200909280055 2009-09-28 00:57 73.3360 -159.6430
200909280204 2009-09-28 02:06 73.1695 -159.1480
200909280312 2009-09-28 03:14 73.0020 -158.6496
200909280419 2009-09-28 04:20 72.8351 -158.1825
200909280529 2009-09-28 05:30 72.6665 -157.7041
200909280641 2009-09-28 06:42 72.5018 -157.2290
200909280751 2009-09-28 07:53 72.3336 -156.7788
200909280936 2009-09-28 09:37 72.1670 -156.6125
200909281129 2009-09-28 11:30 72.0000 -156.0551
200910070828 2009-10-07 08:29 72.0013 -168.0103
200910080222 2009-10-08 02:23 73.0036 -165.9715
200910082340 2009-10-08 23:41 73.4416 -164.0710
200910082344 2009-10-08 23:45 73.4389 -164.1140
200910090235 2009-10-09 02:37 73.0033 -164.0825
200910090533 2009-10-09 05:34 72.5056 -164.0120
200910090829 2009-10-09 08:30 71.9938 -163.9730
200910091121 2009-10-09 11:22 71.5010 -164.0091
200910091724 2009-10-09 17:25 72.5025 -162.9856
200910100234 2009-10-10 02:35 72.9970 -162.0485
200910100520 2009-10-10 05:21 72.5018 -162.0183
200910100824 2009-10-10 08:25 71.9943 -162.0693
: MR09-03 Leg2
: Processed (DMO)-QCed
: JAMSTEC

XCTD 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 XCTD
3 8 - 22 Cruise ID a15
4 33 - 40 Date i8 YYYYMMDD (UTC)
5 42 - 45 Time i4 hhmm (UTC)
6 47 - 55 Latitude i2,a1,f5.2,a1 dd-mm.mmN(S)
7 57 - 66 Longitude i3,a1,f5.2,a1 ddd-mm.mmE(W)
8 68 - 71 Number of data lines i4
9 72 - 73 Terminator - CR+LF
  1. Data part
No. Column Content Unit Format Remarks
1 1 - 11 Depth m f11.1
2 12 - 22 Temperature deg-C f11.2 ITS-90
3 23 - 33 Salinity PSU f11.3 PSS-78
4 45 - 55 Flag - i11 1 - 7 : space
8 : flag of depth
9 : flag of temperature
10 : flag of salinity
11 : space
* reference : 'Definition of Quality Control Flags'
5 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

2019-08-31
An observation data was registerd.
2017-06-14
An observation data was registerd.
2014-08-06
An observation data was registerd.
2014-02-18
An observation data was registerd.
2012-09-28
An observation data was registerd.