*2026/01/16 09:57:47.33 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/31 17:41:25.000 END TIME : UTC 2024/01/31 17:41:44.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 97 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.06 2 Depth metres 0.15 28.94 3 Temperature 'deg C (ITS90)' 9.405 9.851 4 Conductivity S/m 3.23912 3.34586 5 Conductance:Specific S/m 4.65809 4.86243 6 Salinity PSS-78 29.42 30.8 7 Speed:Sound m/s 1481.89 1483.02 8 Density kg/m^3 1022.643 1023.899 $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 : 25 LATITUDE : 49 50.22000 N ! (deg min) LONGITUDE : 126 55.96400 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240131_174125 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 97 97 MERGEHDR 1.3 2026/01/16 09:53:44 97 97 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 97 97 CALIB 12.1 2026/01/16 09:56:45 97 97 CLEAN 5.3 2026/01/16 09:57:47 97 97 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 9.613 3.25171 4.69726 29.68 1481.94 1022.861 0.45 0.45 9.641 3.24034 4.67697 29.54 1481.89 1022.750 0.75 0.75 9.674 3.24810 4.68381 29.59 1482.07 1022.787 1.05 1.05 9.717 3.24462 4.67301 29.52 1482.15 1022.727 1.35 1.35 9.769 3.23912 4.65809 29.42 1482.23 1022.643 1.65 1.64 9.793 3.25210 4.67353 29.53 1482.45 1022.727 1.95 1.94 9.851 3.25659 4.67213 29.53 1482.67 1022.717 2.25 2.24 9.848 3.26319 4.68208 29.60 1482.75 1022.773 2.55 2.54 9.776 3.26705 4.69729 29.70 1482.61 1022.862 2.85 2.84 9.750 3.26770 4.70169 29.72 1482.55 1022.889 3.15 3.14 9.723 3.26864 4.70670 29.76 1482.50 1022.919 3.45 3.44 9.688 3.26036 4.69957 29.70 1482.30 1022.884 3.75 3.74 9.676 3.26053 4.70139 29.71 1482.28 1022.895 4.05 4.04 9.665 3.26000 4.70219 29.72 1482.25 1022.902 4.35 4.34 9.646 3.26352 4.70975 29.77 1482.25 1022.945 4.65 4.63 9.633 3.26746 4.71722 29.82 1482.27 1022.988 4.95 4.93 9.624 3.27056 4.72292 29.86 1482.28 1023.021 5.25 5.23 9.615 3.27323 4.72808 29.89 1482.30 1023.051 5.55 5.53 9.604 3.27734 4.73555 29.94 1482.32 1023.094 5.85 5.83 9.587 3.28099 4.74313 29.99 1482.33 1023.138 6.15 6.13 9.568 3.28657 4.75371 30.06 1482.35 1023.198 6.45 6.43 9.559 3.29027 4.76032 30.11 1482.38 1023.236 6.75 6.73 9.548 3.29415 4.76749 30.16 1482.40 1023.277 7.05 7.03 9.541 3.29714 4.77273 30.19 1482.42 1023.307 7.35 7.32 9.539 3.29776 4.77401 30.20 1482.43 1023.316 7.65 7.62 9.537 3.29868 4.77556 30.21 1482.44 1023.326 7.95 7.92 9.536 3.30135 4.77957 30.24 1482.48 1023.349 8.25 8.22 9.535 3.30145 4.77987 30.24 1482.48 1023.352 8.55 8.52 9.535 3.30214 4.78091 30.25 1482.49 1023.359 8.85 8.82 9.533 3.30281 4.78212 30.26 1482.50 1023.367 9.15 9.12 9.531 3.30387 4.78397 30.27 1482.51 1023.378 9.45 9.42 9.529 3.30511 4.78603 30.28 1482.53 1023.391 9.75 9.71 9.528 3.30650 4.78816 30.30 1482.55 1023.404 10.05 10.01 9.529 3.30708 4.78886 30.30 1482.56 1023.409 10.35 10.31 9.527 3.30795 4.79032 30.31 1482.57 1023.418 10.65 10.61 9.524 3.31009 4.79393 30.34 1482.60 1023.439 10.95 10.91 9.522 3.31135 4.79599 30.35 1482.61 1023.452 11.25 11.21 9.521 3.31194 4.79696 30.36 1482.62 1023.459 11.55 11.51 9.520 3.31219 4.79744 30.36 1482.63 1023.463 11.85 11.81 9.519 3.31284 4.79856 30.37 1482.64 1023.470 12.15 12.10 9.519 3.31299 4.79883 30.37 1482.64 1023.473 12.45 12.40 9.519 3.31339 4.79937 30.38 1482.65 1023.477 12.75 12.70 9.519 3.31436 4.80079 30.39 1482.67 1023.486 13.05 13.00 9.514 3.31511 4.80251 30.40 1482.67 1023.497 13.35 13.30 9.512 3.31676 4.80520 30.42 1482.69 1023.513 13.65 13.60 9.512 3.31756 4.80643 30.42 1482.70 1023.521 13.95 13.90 9.509 3.31801 4.80739 30.43 1482.71 1023.528 14.25 14.20 9.509 3.31843 4.80802 30.43 1482.72 1023.533 14.55 14.49 9.509 3.31869 4.80843 30.44 1482.72 1023.536 14.85 14.79 9.508 3.31896 4.80894 30.44 1482.73 1023.540 15.15 15.09 9.508 3.31952 4.80977 30.45 1482.74 1023.546 15.45 15.39 9.506 3.32094 4.81206 30.46 1482.76 1023.560 15.75 15.69 9.506 3.32092 4.81215 30.46 1482.76 1023.562 16.05 15.99 9.504 3.32206 4.81400 30.47 1482.78 1023.573 16.35 16.29 9.505 3.32274 4.81484 30.48 1482.79 1023.579 16.65 16.59 9.506 3.32344 4.81571 30.49 1482.81 1023.585 16.95 16.88 9.503 3.32375 4.81662 30.49 1482.81 1023.592 17.25 17.18 9.502 3.32429 4.81758 30.50 1482.82 1023.598 17.55 17.48 9.501 3.32445 4.81792 30.50 1482.82 1023.601 17.85 17.78 9.499 3.32416 4.81777 30.50 1482.82 1023.602 18.15 18.08 9.496 3.32460 4.81877 30.51 1482.82 1023.609 18.45 18.38 9.495 3.32487 4.81931 30.51 1482.83 1023.613 18.75 18.68 9.493 3.32468 4.81937 30.51 1482.82 1023.615 19.05 18.98 9.495 3.32543 4.82022 30.52 1482.84 1023.621 19.35 19.27 9.493 3.32573 4.82092 30.52 1482.85 1023.626 19.65 19.57 9.491 3.32572 4.82110 30.52 1482.85 1023.628 19.95 19.87 9.489 3.32655 4.82264 30.53 1482.85 1023.638 20.25 20.17 9.485 3.32752 4.82462 30.55 1482.86 1023.650 20.55 20.47 9.477 3.32748 4.82572 30.55 1482.84 1023.658 20.85 20.77 9.475 3.32767 4.82626 30.56 1482.85 1023.662 21.15 21.07 9.474 3.32728 4.82579 30.55 1482.84 1023.661 21.45 21.37 9.474 3.32752 4.82608 30.55 1482.85 1023.664 21.75 21.66 9.472 3.32739 4.82628 30.55 1482.85 1023.667 22.05 21.96 9.471 3.32786 4.82710 30.56 1482.86 1023.672 22.35 22.26 9.470 3.32802 4.82748 30.56 1482.86 1023.676 22.65 22.56 9.465 3.32786 4.82783 30.56 1482.85 1023.679 22.95 22.86 9.463 3.32829 4.82876 30.57 1482.86 1023.686 23.25 23.16 9.455 3.32942 4.83156 30.59 1482.85 1023.703 23.55 23.46 9.436 3.33695 4.84516 30.68 1482.90 1023.779 23.85 23.76 9.429 3.34110 4.85223 30.73 1482.94 1023.820 24.15 24.05 9.424 3.34250 4.85493 30.75 1482.95 1023.836 24.45 24.35 9.421 3.34291 4.85588 30.75 1482.95 1023.843 24.75 24.65 9.419 3.34306 4.85641 30.76 1482.95 1023.847 25.05 24.95 9.415 3.34356 4.85770 30.77 1482.95 1023.856 25.35 25.25 9.413 3.34334 4.85772 30.77 1482.95 1023.857 25.65 25.55 9.410 3.34317 4.85781 30.77 1482.94 1023.859 25.95 25.85 9.410 3.34422 4.85935 30.78 1482.96 1023.869 26.25 26.15 9.410 3.34411 4.85923 30.78 1482.96 1023.869 26.55 26.44 9.410 3.34416 4.85932 30.78 1482.97 1023.871 26.85 26.74 9.411 3.34421 4.85917 30.78 1482.98 1023.872 27.15 27.04 9.411 3.34442 4.85947 30.78 1482.99 1023.875 27.45 27.34 9.412 3.34527 4.86067 30.79 1483.00 1023.882 27.75 27.64 9.411 3.34565 4.86134 30.79 1483.01 1023.887 28.05 27.94 9.410 3.34581 4.86171 30.79 1483.01 1023.891 28.35 28.24 9.411 3.34506 4.86046 30.78 1483.01 1023.885 28.65 28.53 9.405 3.34537 4.86172 30.79 1483.01 1023.893 29.06 28.94 9.405 3.34586 4.86243 30.80 1483.02 1023.899