*2026/01/16 09:57:52.35 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/09 16:00:53.000 END TIME : UTC 2024/07/09 16:01:15.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 112 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 33.31 2 Depth metres 0.15 33.15 3 Temperature 'deg C (ITS90)' 9.592 17.337 4 Conductivity S/m 3.50326 3.73777 5 Conductance:Specific S/m 4.4143 5.06661 6 Salinity PSS-78 28.29 32.26 7 Speed:Sound m/s 1485.41 1506.19 8 Density kg/m^3 1020.298 1025.03 $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 : 161 LATITUDE : 49 51.69430 N ! (deg min) LONGITUDE : 126 42.39030 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240709_160053 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:02 112 112 MERGEHDR 1.3 2026/01/16 09:53:55 112 112 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 112 112 CALIB 12.1 2026/01/16 09:56:51 112 112 CLEAN 5.3 2026/01/16 09:57:52 112 112 $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 09:56:19 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 17.337 3.73777 4.41430 28.29 1506.19 1020.298 0.45 0.45 17.266 3.73609 4.41977 28.33 1506.02 1020.343 0.75 0.75 17.144 3.73513 4.43140 28.40 1505.74 1020.431 1.05 1.05 17.019 3.73639 4.44609 28.50 1505.48 1020.536 1.35 1.35 16.696 3.73217 4.47544 28.70 1504.71 1020.758 1.65 1.65 16.489 3.72738 4.49205 28.80 1504.20 1020.888 1.95 1.95 16.219 3.72296 4.51611 28.96 1503.55 1021.070 2.25 2.25 15.922 3.71604 4.54044 29.12 1502.80 1021.256 2.55 2.55 15.276 3.70922 4.60470 29.54 1501.25 1021.718 2.85 2.85 14.767 3.69722 4.64859 29.82 1499.94 1022.042 3.15 3.14 14.285 3.65661 4.65398 29.82 1498.39 1022.146 3.45 3.44 13.911 3.62066 4.65251 29.78 1497.12 1022.193 3.75 3.74 13.547 3.61492 4.68900 30.01 1496.19 1022.445 4.05 4.04 13.209 3.61060 4.72478 30.24 1495.33 1022.687 4.35 4.34 12.926 3.60610 4.75409 30.42 1494.60 1022.885 4.65 4.64 12.676 3.60249 4.78090 30.59 1493.95 1023.064 4.95 4.94 12.481 3.60274 4.80612 30.75 1493.49 1023.227 5.25 5.24 12.429 3.59999 4.80914 30.77 1493.33 1023.251 5.55 5.54 12.347 3.59795 4.81688 30.82 1493.12 1023.304 5.85 5.84 12.234 3.59512 4.82769 30.88 1492.81 1023.377 6.15 6.13 12.158 3.59371 4.83575 30.93 1492.61 1023.431 6.45 6.43 11.927 3.58084 4.84855 31.00 1491.90 1023.528 6.75 6.73 11.647 3.56593 4.86528 31.09 1491.04 1023.649 7.05 7.03 11.444 3.55453 4.87674 31.15 1490.41 1023.733 7.35 7.33 11.282 3.55176 4.89462 31.26 1489.98 1023.848 7.65 7.63 11.139 3.55028 4.91204 31.37 1489.61 1023.959 7.95 7.93 11.038 3.54926 4.92428 31.44 1489.35 1024.036 8.25 8.22 10.935 3.54569 4.93342 31.49 1489.05 1024.097 8.55 8.52 10.871 3.54102 4.93572 31.50 1488.84 1024.116 8.85 8.82 10.806 3.53788 4.94039 31.53 1488.65 1024.148 9.15 9.12 10.707 3.53350 4.94793 31.57 1488.35 1024.199 9.45 9.42 10.584 3.52801 4.95727 31.62 1487.98 1024.261 9.75 9.72 10.411 3.52358 4.97530 31.73 1487.49 1024.375 10.05 10.02 10.225 3.51850 4.99428 31.84 1486.97 1024.494 10.35 10.31 10.110 3.51591 5.00705 31.92 1486.64 1024.574 10.65 10.61 10.063 3.51402 5.01096 31.94 1486.51 1024.600 10.95 10.91 10.035 3.51336 5.01403 31.96 1486.43 1024.620 11.25 11.21 9.996 3.51322 5.01952 31.99 1486.34 1024.654 11.55 11.51 9.967 3.51155 5.02130 32.00 1486.25 1024.667 11.85 11.81 9.938 3.51087 5.02438 32.02 1486.17 1024.687 12.15 12.11 9.912 3.50994 5.02683 32.03 1486.10 1024.703 12.45 12.40 9.898 3.51074 5.02995 32.05 1486.08 1024.723 12.75 12.70 9.873 3.51034 5.03308 32.07 1486.01 1024.743 13.05 13.00 9.853 3.50994 5.03533 32.08 1485.96 1024.757 13.35 13.30 9.847 3.50950 5.03557 32.08 1485.95 1024.760 13.65 13.60 9.833 3.50928 5.03728 32.09 1485.91 1024.772 13.95 13.90 9.805 3.50808 5.03959 32.10 1485.83 1024.788 14.25 14.19 9.754 3.50691 5.04533 32.14 1485.69 1024.824 14.55 14.49 9.722 3.50563 5.04814 32.15 1485.60 1024.842 14.85 14.79 9.706 3.50515 5.04975 32.16 1485.56 1024.853 15.15 15.09 9.693 3.50547 5.05214 32.18 1485.53 1024.869 15.45 15.39 9.693 3.50570 5.05251 32.18 1485.54 1024.872 15.75 15.69 9.687 3.50543 5.05296 32.18 1485.52 1024.876 16.05 15.98 9.682 3.50484 5.05283 32.18 1485.51 1024.877 16.35 16.28 9.676 3.50552 5.05469 32.19 1485.51 1024.889 16.65 16.58 9.672 3.50543 5.05515 32.20 1485.50 1024.893 16.95 16.88 9.678 3.50557 5.05453 32.19 1485.52 1024.890 17.25 17.18 9.668 3.50491 5.05495 32.19 1485.49 1024.894 17.55 17.48 9.662 3.50515 5.05624 32.20 1485.48 1024.903 17.85 17.77 9.651 3.50480 5.05728 32.21 1485.46 1024.911 18.15 18.07 9.647 3.50467 5.05773 32.21 1485.45 1024.915 18.45 18.37 9.640 3.50432 5.05817 32.21 1485.43 1024.919 18.75 18.67 9.630 3.50432 5.05969 32.22 1485.41 1024.929 19.05 18.97 9.630 3.50437 5.05967 32.22 1485.42 1024.930 19.35 19.27 9.630 3.50443 5.05983 32.22 1485.42 1024.932 19.65 19.56 9.629 3.50453 5.06014 32.22 1485.43 1024.935 19.95 19.86 9.629 3.50491 5.06065 32.23 1485.44 1024.939 20.25 20.16 9.630 3.50432 5.05968 32.22 1485.44 1024.935 20.55 20.46 9.630 3.50397 5.05915 32.22 1485.44 1024.933 20.85 20.76 9.622 3.50401 5.06033 32.22 1485.42 1024.942 21.15 21.06 9.623 3.50402 5.06019 32.22 1485.43 1024.942 21.45 21.35 9.620 3.50394 5.06053 32.22 1485.43 1024.945 21.75 21.65 9.622 3.50431 5.06079 32.23 1485.44 1024.948 22.05 21.95 9.625 3.50404 5.05997 32.22 1485.45 1024.945 22.35 22.25 9.622 3.50353 5.05967 32.22 1485.44 1024.944 22.65 22.55 9.623 3.50419 5.06044 32.22 1485.46 1024.950 22.95 22.85 9.619 3.50409 5.06089 32.23 1485.45 1024.954 23.25 23.15 9.622 3.50432 5.06087 32.23 1485.46 1024.955 23.55 23.44 9.621 3.50413 5.06065 32.22 1485.46 1024.955 23.85 23.74 9.622 3.50384 5.06015 32.22 1485.47 1024.953 24.15 24.04 9.621 3.50402 5.06054 32.22 1485.47 1024.957 24.45 24.34 9.622 3.50362 5.05983 32.22 1485.47 1024.954 24.75 24.64 9.622 3.50406 5.06039 32.22 1485.49 1024.958 25.05 24.94 9.621 3.50349 5.05977 32.22 1485.48 1024.956 25.35 25.23 9.621 3.50406 5.06054 32.22 1485.49 1024.962 25.65 25.53 9.622 3.50351 5.05960 32.22 1485.49 1024.958 25.95 25.83 9.622 3.50434 5.06079 32.22 1485.51 1024.966 26.25 26.13 9.622 3.50370 5.05992 32.22 1485.50 1024.962 26.55 26.43 9.622 3.50395 5.06034 32.22 1485.51 1024.966 26.85 26.73 9.618 3.50326 5.05992 32.22 1485.50 1024.965 27.15 27.02 9.616 3.50417 5.06150 32.23 1485.51 1024.975 27.45 27.32 9.616 3.50346 5.06051 32.22 1485.50 1024.971 27.75 27.62 9.615 3.50365 5.06085 32.22 1485.51 1024.974 28.05 27.92 9.615 3.50389 5.06117 32.23 1485.52 1024.977 28.35 28.22 9.616 3.50373 5.06087 32.22 1485.52 1024.977 28.65 28.52 9.616 3.50363 5.06064 32.22 1485.53 1024.976 28.95 28.81 9.615 3.50393 5.06132 32.23 1485.53 1024.982 29.25 29.11 9.614 3.50347 5.06081 32.22 1485.53 1024.980 29.55 29.41 9.615 3.50413 5.06154 32.23 1485.54 1024.985 29.85 29.71 9.618 3.50418 5.06124 32.23 1485.56 1024.985 30.15 30.01 9.622 3.50412 5.06059 32.22 1485.57 1024.982 30.45 30.31 9.620 3.50445 5.06130 32.23 1485.58 1024.988 30.75 30.60 9.618 3.50373 5.06060 32.22 1485.57 1024.985 31.05 30.90 9.618 3.50411 5.06116 32.22 1485.57 1024.989 31.35 31.20 9.618 3.50364 5.06049 32.22 1485.57 1024.987 31.65 31.50 9.619 3.50411 5.06096 32.22 1485.59 1024.991 31.95 31.80 9.619 3.50369 5.06039 32.22 1485.59 1024.989 32.25 32.10 9.618 3.50390 5.06082 32.22 1485.59 1024.993 32.55 32.39 9.608 3.50342 5.06156 32.23 1485.57 1024.998 32.85 32.69 9.594 3.50421 5.06473 32.25 1485.54 1025.018 33.15 32.99 9.597 3.50382 5.06371 32.24 1485.55 1025.013 33.31 33.15 9.592 3.50529 5.06661 32.26 1485.56 1025.030