*2026/01/16 09:57:48.48 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/23 01:41:40.000 END TIME : UTC 2024/04/23 01:42:04.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 121 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.28 2 Depth metres 0.15 36.13 3 Temperature 'deg C (ITS90)' 9.986 11.914 4 Conductivity S/m 3.25319 3.50583 5 Conductance:Specific S/m 4.40701 5.01007 6 Salinity PSS-78 27.89 31.91 7 Speed:Sound m/s 1486.12 1488.05 8 Density kg/m^3 1021.09 1024.706 $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 : 70 LATITUDE : 48 57.41870 N ! (deg min) LONGITUDE : 125 2.08070 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240423_014140 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:56 121 121 MERGEHDR 1.3 2026/01/16 09:53:48 121 121 HDREDIT2 3.2 2026/01/16 09:55:03 ? ? REMOVECH 8.2 2026/01/16 09:56:14 121 121 CALIB 12.1 2026/01/16 09:56:47 121 121 CLEAN 5.3 2026/01/16 09:57:48 121 121 $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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:47 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 11.914 3.25370 4.40715 27.89 1488.04 1021.090 0.45 0.45 11.913 3.25363 4.40720 27.89 1488.04 1021.091 0.75 0.75 11.909 3.25319 4.40701 27.89 1488.03 1021.092 1.05 1.05 11.909 3.25385 4.40790 27.89 1488.05 1021.098 1.35 1.35 11.901 3.25456 4.40982 27.91 1488.04 1021.111 1.65 1.65 11.885 3.25632 4.41419 27.93 1488.02 1021.137 1.95 1.95 11.864 3.25928 4.42067 27.98 1488.01 1021.176 2.25 2.25 11.850 3.26104 4.42478 28.01 1487.99 1021.201 2.55 2.55 11.833 3.26406 4.43094 28.05 1487.99 1021.237 2.85 2.85 11.813 3.26838 4.43916 28.10 1487.99 1021.285 3.15 3.14 11.786 3.26980 4.44433 28.14 1487.94 1021.318 3.45 3.44 11.757 3.27453 4.45435 28.20 1487.92 1021.376 3.75 3.74 11.719 3.27683 4.46203 28.25 1487.86 1021.423 4.05 4.04 11.643 3.28039 4.47615 28.35 1487.70 1021.509 4.35 4.34 11.562 3.28959 4.49861 28.50 1487.60 1021.641 4.65 4.64 11.436 3.32708 4.56567 28.95 1487.71 1022.020 4.95 4.94 11.338 3.34377 4.60087 29.19 1487.66 1022.222 5.25 5.24 11.203 3.36213 4.64344 29.48 1487.53 1022.469 5.55 5.54 11.083 3.37558 4.67753 29.70 1487.38 1022.667 5.85 5.84 10.995 3.38554 4.70276 29.87 1487.27 1022.814 6.15 6.14 10.926 3.38696 4.71380 29.94 1487.12 1022.882 6.45 6.44 10.878 3.38807 4.72170 29.99 1487.01 1022.930 6.75 6.73 10.840 3.39060 4.73014 30.05 1486.95 1022.981 7.05 7.03 10.797 3.39160 4.73723 30.09 1486.86 1023.025 7.35 7.33 10.741 3.39692 4.75215 30.19 1486.78 1023.112 7.65 7.63 10.705 3.40305 4.76545 30.28 1486.76 1023.189 7.95 7.93 10.687 3.40590 4.77197 30.33 1486.75 1023.228 8.25 8.23 10.655 3.40956 4.78134 30.39 1486.72 1023.283 8.55 8.53 10.614 3.41908 4.80020 30.52 1486.73 1023.391 8.85 8.83 10.553 3.43082 4.82495 30.68 1486.72 1023.533 9.15 9.13 10.486 3.45235 4.86444 30.95 1486.81 1023.756 9.45 9.42 10.422 3.45464 4.87641 31.03 1486.68 1023.828 9.75 9.72 10.373 3.45461 4.88318 31.07 1486.56 1023.870 10.05 10.02 10.344 3.45492 4.88752 31.10 1486.50 1023.898 10.35 10.32 10.322 3.45414 4.88949 31.11 1486.44 1023.911 10.65 10.62 10.289 3.45422 4.89421 31.14 1486.36 1023.941 10.95 10.92 10.264 3.45624 4.90054 31.18 1486.32 1023.979 11.25 11.22 10.242 3.45741 4.90524 31.21 1486.28 1024.007 11.55 11.51 10.220 3.45802 4.90913 31.24 1486.24 1024.032 11.85 11.81 10.203 3.45729 4.91055 31.24 1486.19 1024.042 12.15 12.11 10.181 3.45817 4.91486 31.27 1486.15 1024.068 12.45 12.41 10.170 3.45881 4.91731 31.29 1486.13 1024.084 12.75 12.71 10.159 3.46030 4.92098 31.31 1486.13 1024.106 13.05 13.01 10.154 3.46166 4.92358 31.33 1486.14 1024.122 13.35 13.31 10.151 3.46251 4.92516 31.34 1486.15 1024.132 13.65 13.61 10.143 3.46451 4.92912 31.37 1486.16 1024.156 13.95 13.90 10.135 3.46567 4.93188 31.39 1486.15 1024.173 14.25 14.20 10.117 3.46707 4.93646 31.42 1486.13 1024.201 14.55 14.50 10.105 3.46852 4.94015 31.44 1486.12 1024.223 14.85 14.80 10.093 3.47217 4.94706 31.49 1486.14 1024.263 15.15 15.10 10.085 3.47412 4.95095 31.51 1486.15 1024.286 15.45 15.40 10.078 3.47617 4.95490 31.54 1486.16 1024.310 15.75 15.70 10.072 3.47759 4.95776 31.56 1486.17 1024.327 16.05 15.99 10.071 3.47807 4.95859 31.57 1486.17 1024.333 16.35 16.29 10.070 3.47873 4.95969 31.57 1486.18 1024.340 16.65 16.59 10.067 3.47887 4.96033 31.58 1486.18 1024.345 16.95 16.89 10.064 3.47950 4.96159 31.59 1486.19 1024.354 17.25 17.19 10.064 3.47960 4.96185 31.59 1486.19 1024.357 17.55 17.49 10.064 3.47977 4.96203 31.59 1486.20 1024.359 17.85 17.79 10.064 3.48035 4.96286 31.59 1486.21 1024.365 18.15 18.08 10.063 3.47999 4.96246 31.59 1486.21 1024.364 18.45 18.38 10.063 3.48035 4.96296 31.59 1486.22 1024.368 18.75 18.68 10.064 3.48082 4.96345 31.60 1486.23 1024.372 19.05 18.98 10.064 3.48173 4.96476 31.61 1486.25 1024.380 19.35 19.28 10.064 3.48158 4.96466 31.61 1486.25 1024.381 19.65 19.58 10.059 3.48282 4.96711 31.62 1486.26 1024.396 19.95 19.88 10.057 3.48292 4.96748 31.62 1486.26 1024.399 20.25 20.17 10.053 3.48394 4.96958 31.64 1486.27 1024.412 20.55 20.47 10.048 3.48620 4.97344 31.67 1486.29 1024.435 20.85 20.77 10.036 3.48851 4.97852 31.70 1486.29 1024.465 21.15 21.07 10.022 3.49168 4.98502 31.74 1486.30 1024.503 21.45 21.37 10.016 3.49254 4.98703 31.76 1486.30 1024.516 21.75 21.67 10.013 3.49254 4.98756 31.76 1486.29 1024.521 22.05 21.96 10.008 3.49340 4.98947 31.77 1486.30 1024.533 22.35 22.26 10.004 3.49366 4.99034 31.78 1486.29 1024.539 22.65 22.56 9.998 3.49433 4.99212 31.79 1486.29 1024.550 22.95 22.86 9.996 3.49433 4.99241 31.79 1486.29 1024.553 23.25 23.16 9.994 3.49465 4.99327 31.80 1486.29 1024.560 23.55 23.46 9.992 3.49473 4.99356 31.80 1486.30 1024.562 23.85 23.76 9.993 3.49539 4.99440 31.81 1486.31 1024.568 24.15 24.05 9.992 3.49479 4.99375 31.80 1486.30 1024.566 24.45 24.35 9.991 3.49499 4.99411 31.80 1486.31 1024.569 24.75 24.65 9.991 3.49552 4.99492 31.81 1486.32 1024.575 25.05 24.95 9.991 3.49654 4.99634 31.82 1486.34 1024.584 25.35 25.25 9.991 3.49689 4.99689 31.82 1486.35 1024.589 25.65 25.55 9.991 3.49797 4.99845 31.83 1486.37 1024.598 25.95 25.84 9.989 3.49951 5.00095 31.85 1486.38 1024.614 26.25 26.14 9.988 3.50003 5.00181 31.86 1486.39 1024.620 26.55 26.44 9.987 3.50039 5.00235 31.86 1486.40 1024.624 26.85 26.74 9.987 3.50131 5.00376 31.87 1486.42 1024.633 27.15 27.04 9.988 3.50064 5.00270 31.86 1486.41 1024.628 27.45 27.34 9.987 3.50101 5.00323 31.87 1486.42 1024.633 27.75 27.64 9.988 3.50138 5.00371 31.87 1486.43 1024.636 28.05 27.93 9.987 3.50125 5.00365 31.87 1486.43 1024.637 28.35 28.23 9.988 3.50162 5.00410 31.87 1486.45 1024.641 28.65 28.53 9.988 3.50154 5.00391 31.87 1486.45 1024.641 28.95 28.83 9.988 3.50173 5.00416 31.87 1486.46 1024.644 29.25 29.13 9.988 3.50227 5.00490 31.88 1486.47 1024.649 29.55 29.43 9.987 3.50223 5.00500 31.88 1486.47 1024.651 29.85 29.72 9.988 3.50250 5.00534 31.88 1486.48 1024.654 30.15 30.02 9.989 3.50309 5.00596 31.88 1486.50 1024.659 30.45 30.32 9.988 3.50271 5.00562 31.88 1486.49 1024.658 30.75 30.62 9.988 3.50303 5.00606 31.88 1486.50 1024.662 31.05 30.92 9.988 3.50316 5.00622 31.89 1486.51 1024.664 31.35 31.22 9.987 3.50346 5.00676 31.89 1486.51 1024.668 31.65 31.52 9.988 3.50368 5.00697 31.89 1486.52 1024.671 31.95 31.81 9.987 3.50385 5.00735 31.89 1486.53 1024.674 32.25 32.11 9.990 3.50426 5.00757 31.89 1486.55 1024.677 32.55 32.41 9.989 3.50440 5.00781 31.90 1486.55 1024.679 32.85 32.71 9.991 3.50479 5.00820 31.90 1486.56 1024.682 33.15 33.01 9.992 3.50510 5.00838 31.90 1486.58 1024.685 33.45 33.31 9.990 3.50496 5.00849 31.90 1486.57 1024.687 33.75 33.60 9.990 3.50488 5.00836 31.90 1486.58 1024.687 34.05 33.90 9.989 3.50461 5.00820 31.90 1486.58 1024.688 34.35 34.20 9.986 3.50458 5.00850 31.90 1486.57 1024.691 34.65 34.50 9.987 3.50494 5.00892 31.90 1486.58 1024.694 34.95 34.80 9.988 3.50517 5.00915 31.90 1486.59 1024.697 35.25 35.10 9.988 3.50498 5.00881 31.90 1486.60 1024.696 35.55 35.40 9.989 3.50567 5.00974 31.91 1486.61 1024.703 35.85 35.69 9.988 3.50583 5.01007 31.91 1486.62 1024.706 36.28 36.13 9.989 3.50577 5.00979 31.91 1486.63 1024.706