*2026/01/16 09:57:47.50 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/02/01 19:22:50.000 END TIME : UTC 2024/02/01 19:23:07.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 90 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.95 2 Depth metres 0.15 26.93 3 Temperature 'deg C (ITS90)' 7.507 10.664 4 Conductivity S/m 0.7352E-01 3.44402 5 Conductance:Specific S/m 0.11309 4.8508 6 Salinity PSS-78 0.55 30.85 7 Speed:Sound m/s 1437.78 1487.23 8 Density kg/m^3 1000.316 1023.758 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 32 LATITUDE : 50 6.72980 N ! (deg min) LONGITUDE : 127 6.97470 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240201_192250 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:55 90 90 MERGEHDR 1.3 2026/01/16 09:53:45 90 90 HDREDIT2 3.2 2026/01/16 09:55:01 ? ? REMOVECH 8.2 2026/01/16 09:56:13 90 90 CALIB 12.1 2026/01/16 09:56:45 90 90 CLEAN 5.3 2026/01/16 09:57:47 90 90 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:01 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 09:57:46 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 7.507 0.07352 0.11309 0.55 1437.78 1000.316 0.45 0.46 7.595 0.08229 0.12624 0.62 1438.24 1000.365 0.75 0.76 7.636 0.08791 0.13469 0.66 1438.47 1000.399 1.05 1.07 7.643 0.10729 0.16434 0.81 1438.70 1000.520 1.35 1.38 7.757 0.17746 0.27088 1.37 1439.90 1000.958 1.65 1.68 7.846 0.21619 0.32909 1.68 1440.67 1001.201 1.95 1.99 8.127 0.49948 0.75388 4.07 1444.82 1003.055 2.25 2.29 8.494 0.96380 1.43875 8.14 1451.37 1006.216 2.55 2.59 8.648 1.11446 1.65604 9.48 1453.64 1007.249 2.85 2.90 8.847 1.67807 2.47887 14.68 1460.81 1011.290 3.15 3.20 9.003 1.99206 2.92922 17.62 1465.01 1013.563 3.45 3.50 9.168 2.10505 3.08049 18.63 1466.88 1014.330 3.75 3.80 9.223 2.27400 3.32234 20.24 1469.05 1015.578 4.05 4.10 9.261 2.37983 3.47311 21.25 1470.44 1016.362 4.35 4.40 9.288 2.41289 3.51861 21.56 1470.92 1016.600 4.65 4.70 9.302 2.44621 3.56571 21.88 1471.36 1016.847 4.95 5.01 9.329 2.47629 3.60670 22.16 1471.81 1017.061 5.25 5.31 9.336 2.53638 3.69347 22.74 1472.55 1017.518 5.55 5.61 9.330 2.60604 3.79558 23.43 1473.38 1018.059 5.85 5.91 9.338 2.62431 3.82127 23.61 1473.63 1018.195 6.15 6.21 9.344 2.65224 3.86134 23.88 1473.98 1018.408 6.45 6.51 9.346 2.71850 3.95753 24.54 1474.79 1018.920 6.75 6.81 9.372 2.75983 4.01471 24.93 1475.37 1019.224 7.05 7.11 9.407 2.81486 4.09058 25.45 1476.15 1019.628 7.35 7.41 9.441 2.87635 4.17581 26.04 1476.99 1020.083 7.65 7.71 9.475 2.92554 4.24301 26.51 1477.69 1020.443 7.95 8.01 9.517 2.97004 4.30235 26.92 1478.36 1020.760 8.25 8.31 9.569 2.99861 4.33710 27.16 1478.86 1020.945 8.55 8.61 9.622 3.04704 4.40041 27.61 1479.60 1021.285 8.85 8.90 9.666 3.07242 4.43153 27.83 1480.03 1021.452 9.15 9.20 9.714 3.10782 4.47626 28.15 1480.60 1021.692 9.45 9.50 9.738 3.12355 4.49584 28.28 1480.86 1021.798 9.75 9.80 9.754 3.13211 4.50610 28.36 1481.02 1021.854 10.05 10.10 9.771 3.14054 4.51608 28.43 1481.17 1021.908 10.35 10.40 9.798 3.15594 4.53469 28.56 1481.43 1022.009 10.65 10.70 9.841 3.17792 4.56063 28.75 1481.82 1022.148 10.95 11.00 9.886 3.19914 4.58518 28.92 1482.21 1022.280 11.25 11.30 9.938 3.21927 4.60709 29.08 1482.60 1022.397 11.55 11.60 10.006 3.24116 4.62947 29.25 1483.05 1022.515 11.85 11.90 10.065 3.26691 4.65836 29.45 1483.52 1022.670 12.15 12.20 10.107 3.27702 4.66719 29.52 1483.76 1022.716 12.45 12.49 10.165 3.29912 4.69091 29.69 1484.19 1022.843 12.75 12.79 10.219 3.32429 4.71951 29.90 1484.64 1022.997 13.05 13.09 10.265 3.34441 4.74177 30.06 1485.01 1023.116 13.35 13.39 10.348 3.35481 4.74537 30.10 1485.35 1023.131 13.65 13.69 10.420 3.37361 4.76229 30.22 1485.77 1023.220 13.95 13.99 10.456 3.38593 4.77484 30.32 1486.02 1023.287 14.25 14.29 10.517 3.40308 4.79083 30.44 1486.38 1023.371 14.55 14.59 10.575 3.41406 4.79842 30.50 1486.67 1023.410 14.85 14.89 10.605 3.42763 4.81346 30.61 1486.91 1023.491 15.15 15.18 10.641 3.43267 4.81557 30.62 1487.07 1023.501 15.45 15.48 10.664 3.43598 4.81713 30.64 1487.18 1023.509 15.75 15.78 10.664 3.43527 4.81620 30.63 1487.17 1023.505 16.05 16.08 10.650 3.43338 4.81541 30.62 1487.12 1023.503 16.35 16.38 10.642 3.43317 4.81618 30.63 1487.10 1023.510 16.65 16.68 10.639 3.43506 4.81922 30.65 1487.12 1023.528 16.95 16.98 10.641 3.43547 4.81952 30.65 1487.13 1023.531 17.25 17.28 10.645 3.43767 4.82210 30.67 1487.17 1023.546 17.55 17.57 10.652 3.44029 4.82480 30.69 1487.23 1023.561 17.85 17.87 10.644 3.43935 4.82454 30.69 1487.20 1023.562 18.15 18.17 10.626 3.43704 4.82376 30.68 1487.13 1023.560 18.45 18.47 10.619 3.43653 4.82401 30.68 1487.11 1023.563 18.75 18.77 10.606 3.43715 4.82660 30.70 1487.09 1023.580 19.05 19.07 10.606 3.43764 4.82729 30.70 1487.10 1023.585 19.35 19.37 10.614 3.43971 4.82909 30.72 1487.15 1023.595 19.65 19.67 10.626 3.44209 4.83082 30.73 1487.22 1023.605 19.95 19.96 10.622 3.44382 4.83378 30.75 1487.23 1023.623 20.25 20.26 10.603 3.43841 4.82877 30.71 1487.12 1023.598 20.55 20.56 10.575 3.43648 4.82988 30.72 1487.03 1023.608 20.85 20.86 10.546 3.43596 4.83316 30.74 1486.96 1023.629 21.15 21.16 10.511 3.43350 4.83442 30.74 1486.84 1023.640 21.45 21.46 10.475 3.42864 4.83243 30.72 1486.70 1023.633 21.75 21.76 10.463 3.42379 4.82721 30.68 1486.61 1023.607 22.05 22.06 10.453 3.42666 4.83270 30.72 1486.63 1023.639 22.35 22.35 10.457 3.43503 4.84398 30.80 1486.74 1023.702 22.65 22.65 10.492 3.44083 4.84734 30.83 1486.91 1023.719 22.95 22.95 10.516 3.44312 4.84732 30.83 1487.00 1023.718 23.25 23.25 10.527 3.44386 4.84679 30.83 1487.04 1023.716 23.55 23.55 10.530 3.44402 4.84671 30.83 1487.06 1023.716 23.85 23.85 10.526 3.44394 4.84706 30.83 1487.05 1023.720 24.15 24.15 10.519 3.44333 4.84717 30.83 1487.03 1023.722 24.45 24.44 10.515 3.44119 4.84466 30.81 1487.00 1023.710 24.75 24.74 10.501 3.43597 4.83926 30.77 1486.90 1023.683 25.05 25.04 10.462 3.43608 4.84471 30.81 1486.81 1023.717 25.35 25.34 10.447 3.43631 4.84708 30.82 1486.78 1023.732 25.65 25.64 10.446 3.43878 4.85077 30.85 1486.81 1023.754 25.95 25.94 10.459 3.43874 4.84884 30.83 1486.85 1023.744 26.25 26.24 10.461 3.43883 4.84881 30.83 1486.86 1023.745 26.55 26.54 10.460 3.43933 4.84956 30.84 1486.87 1023.750 26.95 26.93 10.463 3.44048 4.85080 30.85 1486.90 1023.758