*2026/01/16 10:37:55.05 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/28 23:04:45.000 END TIME : UTC 2025/05/28 23:05:09.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 124 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.2 2 Depth metres 0.15 37.05 3 Temperature 'deg C (ITS90)' 9.808 13.46 4 Conductivity S/m 3.1043 3.51777 5 Conductance:Specific S/m 4.0357 4.95622 6 Salinity PSS-78 25.42 31.51 7 Speed:Sound m/s 1485.48 1491.02 8 Density kg/m^3 1018.898 1024.424 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 169 LATITUDE : 49 51.63520 N ! (deg min) LONGITUDE : 126 59.01990 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250528_230445 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:31 124 124 MERGEHDR 1.3 2026/01/16 10:35:45 124 124 HDREDIT2 3.2 2026/01/16 10:36:16 ? ? REMOVECH 8.2 2026/01/16 10:36:43 124 124 CALIB 12.1 2026/01/16 10:37:18 124 124 CLEAN 5.3 2026/01/16 10:37:55 124 124 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:16 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 10:36:43 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:18 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 10:37:42 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 13.460 3.10430 4.03570 25.42 1490.44 1018.898 0.45 0.45 13.196 3.10886 4.06958 25.63 1489.80 1019.116 0.75 0.75 13.033 3.14910 4.13995 26.11 1489.81 1019.517 1.05 1.05 12.944 3.18891 4.20209 26.54 1490.02 1019.864 1.35 1.35 12.943 3.25487 4.28918 27.15 1490.73 1020.335 1.65 1.65 12.892 3.27331 4.31931 27.35 1490.81 1020.506 1.95 1.95 12.773 3.31949 4.39398 27.87 1491.02 1020.927 2.25 2.25 12.643 3.33771 4.43331 28.13 1490.89 1021.157 2.55 2.55 12.555 3.36064 4.47426 28.41 1490.93 1021.392 2.85 2.85 12.475 3.37353 4.50108 28.60 1490.87 1021.549 3.15 3.15 12.364 3.39723 4.54616 28.90 1490.86 1021.808 3.45 3.45 12.287 3.40242 4.56247 29.01 1490.73 1021.907 3.75 3.75 12.222 3.40694 4.57657 29.11 1490.62 1021.993 4.05 4.04 12.138 3.40946 4.59024 29.19 1490.44 1022.078 4.35 4.34 12.043 3.41141 4.60465 29.29 1490.23 1022.168 4.65 4.64 11.939 3.44032 4.65678 29.64 1490.30 1022.466 4.95 4.94 11.867 3.47116 4.70765 30.00 1490.47 1022.753 5.25 5.24 11.802 3.47697 4.72391 30.11 1490.38 1022.850 5.55 5.54 11.764 3.47922 4.73187 30.16 1490.31 1022.899 5.85 5.84 11.720 3.48215 4.74142 30.22 1490.24 1022.957 6.15 6.14 11.668 3.48722 4.75518 30.31 1490.17 1023.039 6.45 6.44 11.631 3.49143 4.76567 30.38 1490.14 1023.102 6.75 6.74 11.587 3.49580 4.77732 30.46 1490.08 1023.172 7.05 7.03 11.545 3.50230 4.79175 30.56 1490.06 1023.256 7.35 7.33 11.508 3.50437 4.79945 30.61 1489.99 1023.303 7.65 7.63 11.472 3.50621 4.80665 30.66 1489.93 1023.348 7.95 7.93 11.413 3.50933 4.81885 30.74 1489.82 1023.422 8.25 8.23 11.387 3.51191 4.82584 30.78 1489.79 1023.464 8.55 8.53 11.370 3.51286 4.82933 30.81 1489.76 1023.486 8.85 8.83 11.341 3.51331 4.83384 30.83 1489.70 1023.515 9.15 9.13 11.316 3.51409 4.83820 30.86 1489.65 1023.542 9.45 9.42 11.303 3.51498 4.84119 30.88 1489.63 1023.561 9.75 9.72 11.291 3.51554 4.84350 30.90 1489.62 1023.576 10.05 10.02 11.282 3.51487 4.84383 30.90 1489.59 1023.580 10.35 10.32 11.272 3.51565 4.84627 30.91 1489.58 1023.596 10.65 10.62 11.263 3.51595 4.84779 30.92 1489.57 1023.606 10.95 10.92 11.252 3.51682 4.85048 30.94 1489.55 1023.623 11.25 11.22 11.237 3.51764 4.85363 30.96 1489.53 1023.643 11.55 11.52 11.221 3.51777 4.85600 30.98 1489.49 1023.659 11.85 11.81 11.205 3.51723 4.85741 30.99 1489.45 1023.669 12.15 12.11 11.188 3.51690 4.85915 31.00 1489.41 1023.682 12.45 12.41 11.175 3.51602 4.85973 31.00 1489.37 1023.687 12.75 12.71 11.161 3.51556 4.86103 31.01 1489.34 1023.697 13.05 13.01 11.146 3.51565 4.86313 31.02 1489.30 1023.711 13.35 13.31 11.137 3.51472 4.86308 31.02 1489.28 1023.713 13.65 13.61 11.128 3.51588 4.86584 31.04 1489.27 1023.730 13.95 13.91 11.119 3.51561 4.86669 31.04 1489.25 1023.737 14.25 14.20 11.108 3.51598 4.86869 31.05 1489.23 1023.750 14.55 14.50 11.096 3.51595 4.87030 31.06 1489.21 1023.761 14.85 14.80 11.078 3.51560 4.87224 31.07 1489.16 1023.775 15.15 15.10 11.062 3.51517 4.87379 31.08 1489.12 1023.786 15.45 15.40 11.048 3.51477 4.87519 31.09 1489.08 1023.796 15.75 15.70 11.029 3.51366 4.87619 31.10 1489.03 1023.805 16.05 16.00 11.011 3.51345 4.87834 31.11 1488.99 1023.819 16.35 16.29 10.993 3.51329 4.88046 31.12 1488.95 1023.834 16.65 16.59 10.976 3.51309 4.88253 31.14 1488.90 1023.848 16.95 16.89 10.954 3.51290 4.88525 31.15 1488.85 1023.866 17.25 17.19 10.934 3.51265 4.88758 31.17 1488.80 1023.882 17.55 17.49 10.920 3.51268 4.88954 31.18 1488.77 1023.895 17.85 17.79 10.905 3.51184 4.89048 31.18 1488.73 1023.903 18.15 18.09 10.891 3.51182 4.89238 31.20 1488.70 1023.916 18.45 18.39 10.878 3.51131 4.89340 31.20 1488.66 1023.924 18.75 18.68 10.863 3.51088 4.89479 31.21 1488.63 1023.934 19.05 18.98 10.849 3.50982 4.89523 31.21 1488.58 1023.939 19.35 19.28 10.833 3.50882 4.89603 31.21 1488.54 1023.946 19.65 19.58 10.820 3.50917 4.89831 31.23 1488.51 1023.961 19.95 19.88 10.808 3.50773 4.89801 31.22 1488.47 1023.961 20.25 20.18 10.797 3.50783 4.89968 31.23 1488.45 1023.973 20.55 20.48 10.786 3.50620 4.89886 31.23 1488.40 1023.970 20.85 20.77 10.775 3.50495 4.89864 31.22 1488.37 1023.971 21.15 21.07 10.766 3.50496 4.89982 31.23 1488.35 1023.980 21.45 21.37 10.755 3.50470 4.90105 31.24 1488.32 1023.989 21.75 21.67 10.744 3.50405 4.90159 31.24 1488.29 1023.994 22.05 21.97 10.733 3.50341 4.90213 31.24 1488.26 1023.999 22.35 22.27 10.726 3.50372 4.90354 31.25 1488.25 1024.008 22.65 22.57 10.721 3.50287 4.90312 31.25 1488.23 1024.008 22.95 22.86 10.713 3.50287 4.90420 31.26 1488.22 1024.016 23.25 23.16 10.701 3.50184 4.90440 31.26 1488.18 1024.019 23.55 23.46 10.685 3.50081 4.90522 31.26 1488.13 1024.026 23.85 23.76 10.665 3.49936 4.90587 31.26 1488.07 1024.032 24.15 24.06 10.647 3.49887 4.90761 31.27 1488.02 1024.045 24.45 24.36 10.632 3.49762 4.90801 31.27 1487.97 1024.049 24.75 24.66 10.625 3.49750 4.90882 31.28 1487.96 1024.056 25.05 24.96 10.613 3.49658 4.90912 31.28 1487.92 1024.059 25.35 25.25 10.601 3.49655 4.91071 31.29 1487.90 1024.070 25.65 25.55 10.591 3.49582 4.91117 31.29 1487.87 1024.075 25.95 25.85 10.582 3.49549 4.91184 31.29 1487.85 1024.081 26.25 26.15 10.574 3.49477 4.91201 31.29 1487.82 1024.083 26.55 26.45 10.565 3.49506 4.91364 31.30 1487.81 1024.094 26.85 26.75 10.553 3.49417 4.91402 31.31 1487.77 1024.099 27.15 27.05 10.533 3.49232 4.91424 31.30 1487.70 1024.103 27.45 27.34 10.515 3.48952 4.91274 31.29 1487.63 1024.097 27.75 27.64 10.500 3.48822 4.91304 31.29 1487.58 1024.101 28.05 27.94 10.474 3.48759 4.91575 31.31 1487.51 1024.119 28.35 28.24 10.442 3.48603 4.91797 31.32 1487.41 1024.135 28.65 28.54 10.413 3.48462 4.91998 31.33 1487.33 1024.150 28.95 28.84 10.370 3.48243 4.92285 31.34 1487.20 1024.170 29.25 29.14 10.320 3.47725 4.92255 31.34 1487.01 1024.173 29.55 29.43 10.265 3.47457 4.92643 31.36 1486.84 1024.200 29.85 29.73 10.220 3.46907 4.92491 31.34 1486.66 1024.196 30.15 30.03 10.165 3.46550 4.92744 31.35 1486.49 1024.215 30.45 30.33 10.111 3.46031 4.92763 31.35 1486.29 1024.221 30.75 30.63 10.062 3.45882 4.93236 31.37 1486.15 1024.251 31.05 30.93 10.021 3.45707 4.93572 31.39 1486.03 1024.274 31.35 31.23 9.992 3.45670 4.93924 31.41 1485.95 1024.296 31.65 31.52 9.977 3.45641 4.94096 31.42 1485.92 1024.308 31.95 31.82 9.966 3.45622 4.94227 31.43 1485.89 1024.317 32.25 32.12 9.954 3.45573 4.94328 31.44 1485.86 1024.325 32.55 32.42 9.940 3.45508 4.94424 31.44 1485.82 1024.332 32.85 32.72 9.925 3.45443 4.94555 31.45 1485.78 1024.342 33.15 33.02 9.910 3.45374 4.94663 31.45 1485.73 1024.350 33.45 33.32 9.902 3.45276 4.94641 31.45 1485.71 1024.350 33.75 33.61 9.907 3.45221 4.94486 31.44 1485.72 1024.343 34.05 33.91 9.902 3.44995 4.94235 31.42 1485.68 1024.330 34.35 34.21 9.881 3.45001 4.94537 31.44 1485.63 1024.350 34.65 34.51 9.862 3.45072 4.94917 31.46 1485.60 1024.373 34.95 34.81 9.847 3.44997 4.95013 31.47 1485.56 1024.380 35.25 35.11 9.839 3.45142 4.95337 31.49 1485.56 1024.400 35.55 35.41 9.833 3.45038 4.95272 31.49 1485.53 1024.398 35.85 35.70 9.828 3.44991 4.95274 31.48 1485.52 1024.400 36.15 36.00 9.824 3.44989 4.95335 31.49 1485.51 1024.405 36.45 36.30 9.819 3.45067 4.95520 31.50 1485.51 1024.416 36.75 36.60 9.812 3.45076 4.95622 31.51 1485.50 1024.424 37.20 37.05 9.808 3.44953 4.95514 31.50 1485.48 1024.420