*2026/01/16 09:57:49.15 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/24 00:36:06.000 END TIME : UTC 2024/04/24 00:36:33.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 136 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.54 2 Depth metres 0.15 40.35 3 Temperature 'deg C (ITS90)' 9.928 11.974 4 Conductivity S/m 3.12462 3.50939 5 Conductance:Specific S/m 4.2254 5.0237 6 Salinity PSS-78 26.63 32 7 Speed:Sound m/s 1485.93 1487.47 8 Density kg/m^3 1020.102 1024.804 $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 : 83 LATITUDE : 48 57.69220 N ! (deg min) LONGITUDE : 125 4.11850 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240424_003606 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:57 136 136 MERGEHDR 1.3 2026/01/16 09:53:49 136 136 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:15 136 136 CALIB 12.1 2026/01/16 09:56:48 136 136 CLEAN 5.3 2026/01/16 09:57:49 136 136 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:03 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 09:56:15 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:48 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 11.940 3.15171 4.26594 26.90 1486.96 1020.323 0.45 0.45 11.974 3.12462 4.22540 26.63 1486.75 1020.102 0.75 0.75 11.912 3.15251 4.27028 26.93 1486.91 1020.352 1.05 1.05 11.852 3.15238 4.27705 26.97 1486.75 1020.396 1.35 1.35 11.718 3.15105 4.29085 27.06 1486.39 1020.486 1.65 1.65 11.636 3.15259 4.30261 27.13 1486.19 1020.559 1.95 1.95 11.604 3.15382 4.30804 27.17 1486.12 1020.593 2.25 2.25 11.589 3.15981 4.31802 27.24 1486.16 1020.650 2.55 2.55 11.536 3.18955 4.36489 27.56 1486.36 1020.910 2.85 2.85 11.483 3.20645 4.39446 27.76 1486.42 1021.077 3.15 3.15 11.349 3.25089 4.47178 28.29 1486.58 1021.511 3.45 3.45 11.297 3.31828 4.57097 28.98 1487.23 1022.057 3.75 3.74 11.262 3.34167 4.60773 29.23 1487.42 1022.262 4.05 4.04 11.115 3.37872 4.67779 29.71 1487.47 1022.659 4.35 4.34 10.991 3.39191 4.71223 29.94 1487.31 1022.860 4.65 4.64 10.912 3.39642 4.72879 30.05 1487.17 1022.959 4.95 4.94 10.810 3.40821 4.75875 30.25 1487.05 1023.133 5.25 5.24 10.734 3.41730 4.78163 30.40 1486.97 1023.266 5.55 5.54 10.698 3.42092 4.79143 30.47 1486.93 1023.324 5.85 5.84 10.646 3.42479 4.80392 30.55 1486.84 1023.398 6.15 6.14 10.611 3.42829 4.81352 30.61 1486.80 1023.454 6.45 6.44 10.584 3.43127 4.82140 30.66 1486.77 1023.501 6.75 6.73 10.563 3.43289 4.82643 30.70 1486.74 1023.531 7.05 7.03 10.555 3.43332 4.82822 30.71 1486.73 1023.543 7.35 7.33 10.549 3.43366 4.82952 30.72 1486.72 1023.552 7.65 7.63 10.539 3.43450 4.83196 30.73 1486.71 1023.568 7.95 7.93 10.509 3.43606 4.83826 30.77 1486.66 1023.606 8.25 8.23 10.474 3.43688 4.84424 30.81 1486.58 1023.642 8.55 8.53 10.456 3.43951 4.85042 30.85 1486.57 1023.679 8.85 8.83 10.436 3.44254 4.85746 30.90 1486.56 1023.721 9.15 9.12 10.401 3.44393 4.86414 30.94 1486.50 1023.761 9.45 9.42 10.374 3.44524 4.86975 30.98 1486.45 1023.795 9.75 9.72 10.348 3.44587 4.87426 31.01 1486.39 1023.823 10.05 10.02 10.319 3.44845 4.88180 31.06 1486.35 1023.868 10.35 10.32 10.309 3.44961 4.88488 31.08 1486.35 1023.887 10.65 10.62 10.296 3.44966 4.88672 31.09 1486.32 1023.899 10.95 10.92 10.277 3.45034 4.89041 31.11 1486.28 1023.922 11.25 11.21 10.258 3.45030 4.89291 31.13 1486.24 1023.938 11.55 11.51 10.229 3.45207 4.89948 31.17 1486.19 1023.978 11.85 11.81 10.182 3.45282 4.90704 31.22 1486.08 1024.024 12.15 12.11 10.153 3.45230 4.91033 31.24 1486.01 1024.045 12.45 12.41 10.145 3.45226 4.91144 31.24 1485.99 1024.053 12.75 12.71 10.116 3.45526 4.91980 31.30 1485.96 1024.103 13.05 13.01 10.096 3.45978 4.92899 31.36 1485.97 1024.156 13.35 13.31 10.078 3.46276 4.93582 31.41 1485.96 1024.196 13.65 13.60 10.064 3.46425 4.93987 31.43 1485.95 1024.220 13.95 13.90 10.055 3.46460 4.94161 31.44 1485.94 1024.232 14.25 14.20 10.045 3.46646 4.94570 31.47 1485.94 1024.256 14.55 14.50 10.039 3.46691 4.94722 31.48 1485.93 1024.266 14.85 14.80 10.033 3.46756 4.94905 31.49 1485.93 1024.278 15.15 15.10 10.031 3.47129 4.95463 31.53 1485.97 1024.310 15.45 15.40 10.030 3.47258 4.95664 31.55 1485.99 1024.323 15.75 15.69 10.029 3.47300 4.95735 31.55 1486.00 1024.328 16.05 15.99 10.029 3.47275 4.95690 31.55 1486.00 1024.327 16.35 16.29 10.027 3.47291 4.95743 31.55 1486.00 1024.331 16.65 16.59 10.024 3.47376 4.95914 31.56 1486.01 1024.342 16.95 16.89 10.022 3.47483 4.96088 31.58 1486.02 1024.353 17.25 17.19 10.020 3.47904 4.96719 31.62 1486.07 1024.389 17.55 17.49 10.013 3.48009 4.96978 31.64 1486.07 1024.405 17.85 17.78 10.007 3.48122 4.97215 31.65 1486.08 1024.420 18.15 18.08 10.004 3.48467 4.97758 31.69 1486.12 1024.451 18.45 18.38 10.006 3.48661 4.98003 31.71 1486.15 1024.466 18.75 18.68 9.999 3.48797 4.98298 31.73 1486.15 1024.484 19.05 18.98 9.999 3.48852 4.98375 31.73 1486.17 1024.489 19.35 19.28 9.998 3.49001 4.98604 31.75 1486.19 1024.503 19.65 19.57 9.998 3.49049 4.98674 31.75 1486.20 1024.508 19.95 19.87 9.999 3.49214 4.98893 31.77 1486.22 1024.521 20.25 20.17 9.994 3.49364 4.99181 31.79 1486.23 1024.539 20.55 20.47 9.994 3.49403 4.99232 31.79 1486.24 1024.543 20.85 20.77 9.994 3.49435 4.99274 31.80 1486.25 1024.547 21.15 21.07 9.993 3.49497 4.99388 31.80 1486.26 1024.554 21.45 21.37 9.995 3.49618 4.99530 31.81 1486.29 1024.563 21.75 21.66 9.993 3.49714 4.99693 31.82 1486.30 1024.573 22.05 21.96 9.994 3.49780 4.99773 31.83 1486.31 1024.579 22.35 22.26 9.992 3.49733 4.99738 31.83 1486.31 1024.579 22.65 22.56 9.992 3.49716 4.99707 31.82 1486.31 1024.578 22.95 22.86 9.990 3.49845 4.99918 31.84 1486.33 1024.591 23.25 23.16 9.991 3.49877 4.99946 31.84 1486.34 1024.594 23.55 23.46 9.992 3.49887 4.99947 31.84 1486.35 1024.595 23.85 23.75 9.992 3.49837 4.99883 31.84 1486.34 1024.593 24.15 24.05 9.992 3.49864 4.99923 31.84 1486.35 1024.596 24.45 24.35 9.988 3.49836 4.99939 31.84 1486.34 1024.599 24.75 24.65 9.986 3.49891 5.00044 31.85 1486.35 1024.606 25.05 24.95 9.987 3.49882 5.00019 31.84 1486.36 1024.606 25.35 25.25 9.988 3.49912 5.00049 31.85 1486.37 1024.609 25.65 25.54 9.988 3.49895 5.00020 31.84 1486.37 1024.608 25.95 25.84 9.986 3.49958 5.00144 31.85 1486.38 1024.617 26.25 26.14 9.984 3.50045 5.00286 31.86 1486.39 1024.626 26.55 26.44 9.984 3.50116 5.00397 31.87 1486.40 1024.633 26.85 26.74 9.987 3.50164 5.00428 31.87 1486.42 1024.636 27.15 27.04 9.988 3.50152 5.00390 31.87 1486.43 1024.635 27.45 27.34 9.990 3.50222 5.00456 31.88 1486.45 1024.640 27.75 27.63 9.989 3.50283 5.00566 31.88 1486.45 1024.647 28.05 27.93 9.984 3.50284 5.00640 31.89 1486.45 1024.653 28.35 28.23 9.984 3.50275 5.00617 31.89 1486.45 1024.653 28.65 28.53 9.982 3.50293 5.00678 31.89 1486.45 1024.658 28.95 28.83 9.981 3.50258 5.00640 31.89 1486.45 1024.657 29.25 29.13 9.979 3.50275 5.00697 31.89 1486.45 1024.661 29.55 29.42 9.978 3.50328 5.00777 31.90 1486.46 1024.667 29.85 29.72 9.978 3.50378 5.00859 31.90 1486.47 1024.673 30.15 30.02 9.973 3.50455 5.01037 31.91 1486.47 1024.684 30.45 30.32 9.968 3.50556 5.01258 31.93 1486.48 1024.698 30.75 30.62 9.963 3.50544 5.01312 31.93 1486.47 1024.703 31.05 30.92 9.963 3.50575 5.01355 31.93 1486.48 1024.706 31.35 31.22 9.960 3.50617 5.01450 31.94 1486.48 1024.713 31.65 31.51 9.961 3.50585 5.01400 31.94 1486.48 1024.711 31.95 31.81 9.962 3.50604 5.01412 31.94 1486.49 1024.713 32.25 32.11 9.962 3.50584 5.01384 31.94 1486.49 1024.713 32.55 32.41 9.961 3.50577 5.01377 31.93 1486.50 1024.714 32.85 32.71 9.961 3.50620 5.01439 31.94 1486.51 1024.719 33.15 33.01 9.960 3.50634 5.01475 31.94 1486.51 1024.722 33.45 33.30 9.964 3.50661 5.01465 31.94 1486.53 1024.722 33.75 33.60 9.971 3.50699 5.01410 31.94 1486.56 1024.720 34.05 33.90 9.969 3.50730 5.01490 31.94 1486.56 1024.726 34.35 34.20 9.959 3.50662 5.01537 31.94 1486.53 1024.730 34.65 34.50 9.958 3.50665 5.01552 31.95 1486.53 1024.733 34.95 34.80 9.961 3.50698 5.01561 31.95 1486.55 1024.734 35.25 35.10 9.960 3.50705 5.01584 31.95 1486.55 1024.737 35.55 35.39 9.958 3.50687 5.01585 31.95 1486.55 1024.738 35.85 35.69 9.958 3.50681 5.01581 31.95 1486.55 1024.739 36.15 35.99 9.955 3.50692 5.01628 31.95 1486.55 1024.743 36.45 36.29 9.954 3.50718 5.01679 31.95 1486.56 1024.747 36.75 36.59 9.954 3.50705 5.01663 31.95 1486.56 1024.748 37.05 36.89 9.955 3.50770 5.01751 31.96 1486.57 1024.754 37.35 37.18 9.958 3.50761 5.01682 31.95 1486.59 1024.751 37.65 37.48 9.958 3.50759 5.01689 31.95 1486.59 1024.753 37.95 37.78 9.954 3.50866 5.01900 31.97 1486.60 1024.766 38.25 38.08 9.954 3.50876 5.01914 31.97 1486.60 1024.768 38.55 38.38 9.949 3.50883 5.01999 31.97 1486.60 1024.774 38.85 38.68 9.950 3.50867 5.01950 31.97 1486.60 1024.773 39.15 38.97 9.944 3.50901 5.02086 31.98 1486.60 1024.782 39.45 39.27 9.939 3.50877 5.02125 31.98 1486.59 1024.786 39.75 39.57 9.936 3.50881 5.02179 31.98 1486.58 1024.790 40.05 39.87 9.935 3.50860 5.02160 31.98 1486.58 1024.790 40.35 40.17 9.934 3.50916 5.02258 31.99 1486.59 1024.797 40.54 40.35 9.928 3.50939 5.02370 32.00 1486.58 1024.804