*2026/01/16 09:57:55.53 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/15 16:53:22.000 END TIME : UTC 2024/10/15 16:53:42.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 103 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.75 2 Depth metres 0.15 30.67 3 Temperature 'deg C (ITS90)' 13.122 13.52 4 Conductivity S/m 2.7834 3.6067 5 Conductance:Specific S/m 3.6484 4.69341 6 Salinity PSS-78 22.72 30.02 7 Speed:Sound m/s 1486.2 1496.23 8 Density kg/m^3 1016.879 1022.6 $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 : 261 LATITUDE : 49 14.58420 N ! (deg min) LONGITUDE : 125 50.97000 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241015_165322 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:07 103 103 MERGEHDR 1.3 2026/01/16 09:54:07 103 103 HDREDIT2 3.2 2026/01/16 09:55:12 ? ? REMOVECH 8.2 2026/01/16 09:56:23 103 103 CALIB 12.1 2026/01/16 09:56:56 103 103 CLEAN 5.3 2026/01/16 09:57:55 103 103 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:12 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 09:56:23 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:56 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 13.145 2.78340 3.64840 22.72 1486.20 1016.879 0.45 0.45 13.165 2.93663 3.84729 24.09 1487.88 1017.932 0.75 0.75 13.122 2.98542 3.91564 24.56 1488.29 1018.304 1.05 1.05 13.142 3.03334 3.97634 24.98 1488.86 1018.626 1.35 1.35 13.375 3.16855 4.12838 26.05 1490.92 1019.412 1.65 1.65 13.417 3.30937 4.30713 27.31 1492.54 1020.372 1.95 1.95 13.403 3.34233 4.35171 27.62 1492.86 1020.617 2.25 2.25 13.429 3.35488 4.36502 27.71 1493.07 1020.686 2.55 2.55 13.462 3.37454 4.38691 27.87 1493.36 1020.802 2.85 2.85 13.478 3.40992 4.43102 28.18 1493.79 1021.041 3.15 3.15 13.480 3.43463 4.46288 28.41 1494.07 1021.215 3.45 3.45 13.482 3.46868 4.50692 28.72 1494.44 1021.456 3.75 3.75 13.490 3.49668 4.54238 28.97 1494.77 1021.650 4.05 4.05 13.497 3.52672 4.58047 29.24 1495.12 1021.858 4.35 4.35 13.502 3.55373 4.61494 29.48 1495.43 1022.047 4.65 4.65 13.507 3.55930 4.62159 29.53 1495.50 1022.084 4.95 4.95 13.509 3.56159 4.62441 29.55 1495.54 1022.101 5.25 5.24 13.507 3.56254 4.62580 29.56 1495.55 1022.110 5.55 5.54 13.509 3.56336 4.62666 29.57 1495.57 1022.116 5.85 5.84 13.505 3.56793 4.63309 29.61 1495.61 1022.153 6.15 6.14 13.506 3.56975 4.63535 29.63 1495.64 1022.166 6.45 6.44 13.507 3.57081 4.63653 29.64 1495.66 1022.174 6.75 6.74 13.508 3.57114 4.63683 29.64 1495.67 1022.176 7.05 7.04 13.509 3.57239 4.63835 29.65 1495.69 1022.186 7.35 7.34 13.511 3.57281 4.63874 29.65 1495.70 1022.189 7.65 7.64 13.512 3.57378 4.63978 29.66 1495.72 1022.196 7.95 7.94 13.514 3.57561 4.64199 29.68 1495.75 1022.209 8.25 8.24 13.518 3.57580 4.64176 29.67 1495.76 1022.208 8.55 8.54 13.518 3.57724 4.64358 29.69 1495.79 1022.220 8.85 8.83 13.518 3.57666 4.64279 29.68 1495.79 1022.217 9.15 9.13 13.520 3.57713 4.64323 29.68 1495.80 1022.220 9.45 9.43 13.520 3.57876 4.64537 29.70 1495.82 1022.233 9.75 9.73 13.520 3.57958 4.64634 29.71 1495.84 1022.240 10.05 10.03 13.520 3.58065 4.64777 29.72 1495.85 1022.249 10.35 10.33 13.517 3.58226 4.65020 29.73 1495.87 1022.264 10.65 10.63 13.514 3.58799 4.65809 29.79 1495.93 1022.309 10.95 10.93 13.511 3.58894 4.65966 29.80 1495.93 1022.319 11.25 11.23 13.507 3.59066 4.66236 29.82 1495.95 1022.335 11.55 11.53 13.505 3.59166 4.66386 29.83 1495.96 1022.345 11.85 11.83 13.505 3.59269 4.66519 29.84 1495.98 1022.354 12.15 12.13 13.503 3.59254 4.66533 29.84 1495.97 1022.356 12.45 12.42 13.502 3.59215 4.66492 29.84 1495.97 1022.355 12.75 12.72 13.500 3.59289 4.66608 29.84 1495.98 1022.363 13.05 13.02 13.499 3.59293 4.66626 29.84 1495.98 1022.365 13.35 13.32 13.500 3.59334 4.66674 29.85 1495.99 1022.369 13.65 13.62 13.498 3.59351 4.66709 29.85 1496.00 1022.373 13.95 13.92 13.497 3.59381 4.66762 29.85 1496.00 1022.377 14.25 14.22 13.498 3.59441 4.66826 29.86 1496.02 1022.381 14.55 14.52 13.497 3.59405 4.66799 29.86 1496.01 1022.382 14.85 14.82 13.498 3.59481 4.66881 29.86 1496.03 1022.387 15.15 15.12 13.499 3.59384 4.66749 29.85 1496.03 1022.381 15.45 15.42 13.499 3.59416 4.66782 29.85 1496.03 1022.384 15.75 15.71 13.499 3.59417 4.66784 29.85 1496.04 1022.385 16.05 16.01 13.500 3.59453 4.66818 29.86 1496.05 1022.388 16.35 16.31 13.498 3.59468 4.66861 29.86 1496.05 1022.392 16.65 16.61 13.498 3.59503 4.66910 29.86 1496.06 1022.396 16.95 16.91 13.499 3.59504 4.66906 29.86 1496.07 1022.397 17.25 17.21 13.498 3.59510 4.66915 29.86 1496.07 1022.399 17.55 17.51 13.498 3.59536 4.66948 29.87 1496.08 1022.402 17.85 17.81 13.496 3.59544 4.66987 29.87 1496.08 1022.406 18.15 18.11 13.492 3.59512 4.66997 29.87 1496.07 1022.408 18.45 18.41 13.488 3.59565 4.67109 29.88 1496.07 1022.416 18.75 18.71 13.493 3.59538 4.67021 29.87 1496.09 1022.412 19.05 19.00 13.492 3.59562 4.67055 29.87 1496.09 1022.415 19.35 19.30 13.493 3.59518 4.66988 29.87 1496.09 1022.413 19.65 19.60 13.488 3.59547 4.67092 29.87 1496.09 1022.420 19.95 19.90 13.481 3.59534 4.67156 29.88 1496.08 1022.426 20.25 20.20 13.472 3.59579 4.67327 29.89 1496.06 1022.438 20.55 20.50 13.471 3.59616 4.67389 29.89 1496.07 1022.443 20.85 20.80 13.471 3.59588 4.67355 29.89 1496.07 1022.442 21.15 21.10 13.462 3.59588 4.67454 29.90 1496.06 1022.450 21.45 21.40 13.461 3.59635 4.67535 29.90 1496.06 1022.456 21.75 21.70 13.459 3.59670 4.67605 29.91 1496.07 1022.461 22.05 22.00 13.455 3.59842 4.67869 29.93 1496.08 1022.477 22.35 22.29 13.444 3.59939 4.68132 29.94 1496.07 1022.495 22.65 22.59 13.442 3.60034 4.68285 29.95 1496.08 1022.504 22.95 22.89 13.446 3.60256 4.68521 29.97 1496.12 1022.518 23.25 23.19 13.448 3.60332 4.68593 29.98 1496.14 1022.523 23.55 23.49 13.449 3.60365 4.68622 29.98 1496.15 1022.526 23.85 23.79 13.448 3.60425 4.68718 29.99 1496.16 1022.532 24.15 24.09 13.449 3.60447 4.68738 29.99 1496.16 1022.535 24.45 24.39 13.446 3.60500 4.68834 29.99 1496.17 1022.542 24.75 24.69 13.444 3.60583 4.68970 30.00 1496.18 1022.551 25.05 24.99 13.444 3.60541 4.68917 30.00 1496.18 1022.549 25.35 25.29 13.447 3.60550 4.68892 30.00 1496.19 1022.548 25.65 25.58 13.446 3.60584 4.68954 30.00 1496.20 1022.553 25.95 25.88 13.445 3.60557 4.68925 30.00 1496.20 1022.553 26.25 26.18 13.443 3.60560 4.68958 30.00 1496.20 1022.556 26.55 26.48 13.443 3.60587 4.68993 30.00 1496.20 1022.560 26.85 26.78 13.442 3.60568 4.68981 30.00 1496.20 1022.560 27.15 27.08 13.443 3.60513 4.68898 30.00 1496.20 1022.557 27.45 27.38 13.444 3.60614 4.69016 30.00 1496.22 1022.564 27.75 27.68 13.439 3.60670 4.69140 30.01 1496.22 1022.573 28.05 27.98 13.441 3.60638 4.69085 30.01 1496.23 1022.571 28.35 28.28 13.441 3.60620 4.69055 30.01 1496.23 1022.571 28.65 28.58 13.438 3.60588 4.69051 30.01 1496.23 1022.572 28.95 28.87 13.426 3.60575 4.69176 30.01 1496.20 1022.582 29.25 29.17 13.419 3.60587 4.69284 30.02 1496.19 1022.590 29.55 29.47 13.421 3.60597 4.69273 30.02 1496.20 1022.590 29.85 29.77 13.421 3.60628 4.69311 30.02 1496.21 1022.594 30.15 30.07 13.419 3.60609 4.69313 30.02 1496.21 1022.595 30.45 30.37 13.414 3.60545 4.69292 30.02 1496.19 1022.596 30.75 30.67 13.411 3.60562 4.69341 30.02 1496.19 1022.600