*2026/01/16 09:57:52.20 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/08 22:25:55.000 END TIME : UTC 2024/07/08 22:26:12.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 89 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.44 2 Depth metres 0.15 26.34 3 Temperature 'deg C (ITS90)' 9.313 21.713 4 Conductivity S/m 2.02778 3.74967 5 Conductance:Specific S/m 2.17047 5.10227 6 Salinity PSS-78 13.02 32.47 7 Speed:Sound m/s 1484.68 1503.5 8 Density kg/m^3 1007.673 1025.212 $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 : 157 LATITUDE : 49 37.76340 N ! (deg min) LONGITUDE : 126 3.87560 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240708_222555 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:01 89 89 MERGEHDR 1.3 2026/01/16 09:53:55 89 89 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:18 89 89 CALIB 12.1 2026/01/16 09:56:51 89 89 CLEAN 5.3 2026/01/16 09:57:52 89 89 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:51 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 21.621 2.03664 2.18425 13.11 1501.81 1007.762 0.45 0.46 21.713 2.02778 2.17047 13.02 1501.98 1007.673 0.75 0.76 21.673 2.02920 2.17385 13.04 1501.89 1007.700 1.05 1.06 21.617 2.04625 2.19475 13.18 1501.89 1007.818 1.35 1.37 21.231 2.22168 2.40280 14.54 1502.30 1008.944 1.65 1.67 20.332 2.64299 2.91515 17.96 1503.50 1011.745 1.95 1.97 19.578 2.80392 3.14499 19.51 1503.03 1013.099 2.25 2.27 18.949 2.88604 3.28341 20.44 1502.21 1013.955 2.55 2.57 18.611 2.99693 3.43594 21.48 1502.38 1014.824 2.85 2.87 17.839 3.13975 3.66460 23.04 1501.81 1016.188 3.15 3.18 17.237 3.30873 3.91685 24.78 1501.94 1017.648 3.45 3.48 16.802 3.37741 4.03981 25.62 1501.56 1018.391 3.75 3.78 16.226 3.58160 4.34390 27.74 1502.19 1020.139 4.05 4.08 15.605 3.74190 4.60772 29.58 1502.36 1021.687 4.35 4.37 14.733 3.74967 4.71863 30.31 1500.43 1022.438 4.65 4.67 13.890 3.72256 4.78596 30.73 1498.18 1022.934 4.95 4.97 13.306 3.68880 4.81497 30.89 1496.43 1023.174 5.25 5.27 12.959 3.66995 4.83404 31.00 1495.40 1023.325 5.55 5.57 12.509 3.64393 4.85745 31.12 1494.03 1023.509 5.85 5.87 12.092 3.62655 4.88854 31.30 1492.82 1023.728 6.15 6.17 11.852 3.61885 4.90999 31.43 1492.15 1023.873 6.45 6.47 11.612 3.61187 4.93266 31.57 1491.48 1024.023 6.75 6.76 11.441 3.60739 4.94959 31.67 1491.02 1024.134 7.05 7.06 11.332 3.60245 4.95763 31.71 1490.69 1024.190 7.35 7.36 11.235 3.59798 4.96477 31.75 1490.41 1024.240 7.65 7.66 11.111 3.59246 4.97419 31.80 1490.04 1024.304 7.95 7.96 10.969 3.58633 4.98533 31.87 1489.62 1024.379 8.25 8.26 10.853 3.57837 4.99040 31.89 1489.24 1024.418 8.55 8.56 10.758 3.57426 4.99790 31.93 1488.96 1024.468 8.85 8.85 10.681 3.57152 5.00476 31.97 1488.74 1024.514 9.15 9.15 10.615 3.56762 5.00864 31.99 1488.53 1024.541 9.45 9.45 10.556 3.56474 5.01280 32.01 1488.35 1024.570 9.75 9.75 10.507 3.56244 5.01647 32.03 1488.21 1024.595 10.05 10.05 10.490 3.56186 5.01812 32.04 1488.16 1024.607 10.35 10.35 10.436 3.55957 5.02258 32.07 1488.00 1024.637 10.65 10.65 10.387 3.55734 5.02637 32.09 1487.85 1024.663 10.95 10.94 10.340 3.55562 5.03062 32.11 1487.72 1024.691 11.25 11.24 10.297 3.55332 5.03339 32.13 1487.59 1024.710 11.55 11.54 10.266 3.55195 5.03601 32.14 1487.50 1024.728 11.85 11.84 10.220 3.55008 5.03992 32.16 1487.36 1024.754 12.15 12.14 10.179 3.54773 5.04247 32.17 1487.24 1024.772 12.45 12.44 10.118 3.54426 5.04616 32.19 1487.05 1024.798 12.75 12.73 10.075 3.54295 5.05050 32.22 1486.93 1024.826 13.05 13.03 10.053 3.54140 5.05143 32.22 1486.86 1024.834 13.35 13.33 10.042 3.54177 5.05368 32.24 1486.84 1024.848 13.65 13.63 10.012 3.54190 5.05815 32.26 1486.77 1024.876 13.95 13.93 9.985 3.53817 5.05675 32.25 1486.66 1024.871 14.25 14.23 9.948 3.53810 5.06193 32.28 1486.57 1024.904 14.55 14.52 9.914 3.53359 5.06046 32.27 1486.43 1024.899 14.85 14.82 9.884 3.53382 5.06507 32.30 1486.36 1024.927 15.15 15.12 9.854 3.53160 5.06633 32.30 1486.26 1024.938 15.45 15.42 9.814 3.53030 5.07019 32.32 1486.15 1024.963 15.75 15.72 9.793 3.52906 5.07146 32.33 1486.09 1024.972 16.05 16.02 9.782 3.53001 5.07447 32.35 1486.08 1024.991 16.35 16.31 9.765 3.52809 5.07413 32.34 1486.02 1024.991 16.65 16.61 9.701 3.52551 5.07981 32.37 1485.82 1025.027 16.95 16.91 9.697 3.52233 5.07583 32.35 1485.78 1025.007 17.25 17.21 9.683 3.52222 5.07767 32.36 1485.75 1025.019 17.55 17.51 9.689 3.52305 5.07800 32.36 1485.78 1025.022 17.85 17.81 9.660 3.52230 5.08129 32.38 1485.70 1025.043 18.15 18.10 9.647 3.52052 5.08053 32.37 1485.65 1025.041 18.45 18.40 9.646 3.52087 5.08118 32.38 1485.66 1025.045 18.75 18.70 9.639 3.52164 5.08334 32.39 1485.65 1025.059 19.05 19.00 9.612 3.52076 5.08601 32.40 1485.58 1025.077 19.35 19.30 9.586 3.51724 5.08472 32.39 1485.47 1025.072 19.65 19.60 9.580 3.51628 5.08428 32.39 1485.45 1025.071 19.95 19.89 9.586 3.51798 5.08586 32.40 1485.49 1025.081 20.25 20.19 9.560 3.51710 5.08845 32.41 1485.42 1025.098 20.55 20.49 9.530 3.51392 5.08829 32.41 1485.30 1025.100 20.85 20.79 9.526 3.51307 5.08764 32.40 1485.29 1025.098 21.15 21.09 9.530 3.51598 5.09118 32.43 1485.34 1025.118 21.45 21.39 9.516 3.51473 5.09139 32.43 1485.30 1025.121 21.75 21.68 9.462 3.51117 5.09419 32.44 1485.12 1025.141 22.05 21.98 9.460 3.51146 5.09493 32.45 1485.12 1025.146 22.35 22.28 9.476 3.50938 5.08959 32.41 1485.14 1025.117 22.65 22.58 9.467 3.51156 5.09412 32.44 1485.15 1025.144 22.95 22.88 9.416 3.50868 5.09742 32.46 1484.99 1025.166 23.25 23.18 9.413 3.50722 5.09585 32.44 1484.96 1025.159 23.55 23.47 9.415 3.50764 5.09607 32.45 1484.98 1025.161 23.85 23.77 9.429 3.50820 5.09485 32.44 1485.03 1025.155 24.15 24.07 9.415 3.50608 5.09384 32.43 1484.97 1025.152 24.45 24.37 9.385 3.50731 5.10012 32.47 1484.91 1025.189 24.75 24.67 9.396 3.50459 5.09452 32.43 1484.91 1025.159 25.05 24.97 9.368 3.50425 5.09811 32.45 1484.84 1025.181 25.35 25.26 9.373 3.50524 5.09882 32.46 1484.87 1025.186 25.65 25.56 9.363 3.50334 5.09757 32.45 1484.83 1025.181 25.95 25.86 9.340 3.50210 5.09914 32.46 1484.76 1025.192 26.25 26.16 9.313 3.50149 5.10227 32.47 1484.68 1025.212 26.44 26.34 9.330 3.50163 5.09994 32.46 1484.73 1025.199