*2026/01/16 09:57:56.27 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/10/16 22:44:32.000 END TIME : UTC 2024/10/16 22:44:52.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 101 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.15 2 Depth metres 0.15 30.02 3 Temperature 'deg C (ITS90)' 10.411 12.663 4 Conductivity S/m 3.15346 3.56695 5 Conductance:Specific S/m 4.19003 5.02414 6 Salinity PSS-78 26.43 32.07 7 Speed:Sound m/s 1488.23 1491.93 8 Density kg/m^3 1019.834 1024.729 $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 : 278 LATITUDE : 48 57.45210 N ! (deg min) LONGITUDE : 125 2.02390 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241016_224432 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:08 101 101 MERGEHDR 1.3 2026/01/16 09:54:09 101 101 HDREDIT2 3.2 2026/01/16 09:55:13 ? ? REMOVECH 8.2 2026/01/16 09:56:24 101 101 CALIB 12.1 2026/01/16 09:56:57 101 101 CLEAN 5.3 2026/01/16 09:57:56 101 101 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:13 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 09:56:24 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:57 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 12.630 3.15346 4.19003 26.43 1488.80 1019.834 0.45 0.45 12.597 3.16326 4.20676 26.54 1488.82 1019.929 0.75 0.75 12.597 3.19342 4.24689 26.82 1489.16 1020.147 1.05 1.05 12.602 3.20023 4.25543 26.88 1489.25 1020.194 1.35 1.35 12.637 3.20630 4.25947 26.92 1489.42 1020.213 1.65 1.65 12.663 3.21783 4.27188 27.00 1489.61 1020.278 1.95 1.95 12.637 3.30788 4.39445 27.86 1490.54 1020.946 2.25 2.25 12.580 3.36938 4.48291 28.48 1491.08 1021.435 2.55 2.55 12.551 3.44629 4.58886 29.22 1491.87 1022.017 2.85 2.85 12.530 3.45576 4.60404 29.33 1491.93 1022.104 3.15 3.15 12.441 3.47030 4.63442 29.53 1491.87 1022.282 3.45 3.44 12.332 3.48804 4.67160 29.79 1491.80 1022.499 3.75 3.74 12.290 3.49494 4.68622 29.89 1491.78 1022.585 4.05 4.04 12.206 3.50942 4.71622 30.09 1491.74 1022.760 4.35 4.34 12.011 3.51893 4.75395 30.34 1491.37 1022.990 4.65 4.64 11.838 3.52952 4.79061 30.58 1491.06 1023.210 4.95 4.94 11.719 3.54149 4.82236 30.79 1490.91 1023.398 5.25 5.24 11.617 3.55135 4.84936 30.97 1490.77 1023.558 5.55 5.54 11.489 3.55550 4.87200 31.12 1490.51 1023.697 5.85 5.84 11.405 3.55767 4.88622 31.21 1490.33 1023.784 6.15 6.13 11.364 3.55854 4.89292 31.26 1490.24 1023.826 6.45 6.43 11.324 3.55962 4.89981 31.30 1490.16 1023.869 6.75 6.73 11.294 3.56016 4.90454 31.33 1490.10 1023.899 7.05 7.03 11.273 3.56082 4.90839 31.36 1490.06 1023.924 7.35 7.33 11.243 3.56155 4.91341 31.39 1490.00 1023.956 7.65 7.63 11.191 3.56214 4.92134 31.44 1489.88 1024.005 7.95 7.93 11.158 3.56294 4.92694 31.47 1489.81 1024.040 8.25 8.23 11.133 3.56411 4.93191 31.51 1489.77 1024.071 8.55 8.52 11.098 3.56476 4.93763 31.54 1489.69 1024.107 8.85 8.82 11.064 3.56450 4.94196 31.57 1489.61 1024.135 9.15 9.12 11.023 3.56532 4.94869 31.61 1489.52 1024.177 9.45 9.42 10.989 3.56610 4.95436 31.65 1489.45 1024.213 9.75 9.72 10.961 3.56695 4.95941 31.68 1489.40 1024.244 10.05 10.02 10.915 3.56686 4.96575 31.72 1489.28 1024.284 10.35 10.32 10.872 3.56654 4.97122 31.75 1489.18 1024.319 10.65 10.61 10.833 3.56540 4.97496 31.78 1489.07 1024.344 10.95 10.91 10.785 3.56460 4.98055 31.81 1488.95 1024.380 11.25 11.21 10.763 3.56445 4.98345 31.83 1488.89 1024.399 11.55 11.51 10.749 3.56379 4.98440 31.83 1488.86 1024.407 11.85 11.81 10.739 3.56415 4.98635 31.85 1488.84 1024.420 12.15 12.11 10.729 3.56389 4.98733 31.85 1488.82 1024.427 12.45 12.41 10.722 3.56369 4.98803 31.86 1488.80 1024.433 12.75 12.70 10.709 3.56345 4.98961 31.87 1488.77 1024.444 13.05 13.00 10.699 3.56317 4.99063 31.87 1488.75 1024.452 13.35 13.30 10.691 3.56220 4.99037 31.87 1488.72 1024.452 13.65 13.60 10.679 3.56241 4.99227 31.88 1488.70 1024.465 13.95 13.90 10.665 3.56172 4.99330 31.89 1488.66 1024.473 14.25 14.20 10.661 3.56157 4.99366 31.89 1488.65 1024.476 14.55 14.49 10.652 3.56140 4.99472 31.89 1488.63 1024.484 14.85 14.79 10.643 3.56144 4.99597 31.90 1488.62 1024.493 15.15 15.09 10.637 3.56119 4.99645 31.90 1488.60 1024.497 15.45 15.39 10.634 3.56128 4.99705 31.91 1488.60 1024.502 15.75 15.69 10.632 3.56111 4.99706 31.91 1488.60 1024.504 16.05 15.99 10.632 3.56132 4.99743 31.91 1488.60 1024.507 16.35 16.29 10.630 3.56065 4.99664 31.90 1488.60 1024.504 16.65 16.58 10.627 3.56110 4.99774 31.91 1488.60 1024.512 16.95 16.88 10.625 3.56088 4.99772 31.91 1488.60 1024.513 17.25 17.18 10.624 3.56126 4.99845 31.92 1488.60 1024.518 17.55 17.48 10.622 3.56067 4.99783 31.91 1488.60 1024.516 17.85 17.78 10.617 3.56102 4.99901 31.92 1488.59 1024.525 18.15 18.08 10.612 3.56100 4.99974 31.92 1488.58 1024.530 18.45 18.38 10.609 3.56115 5.00029 31.93 1488.58 1024.535 18.75 18.67 10.609 3.56100 5.00021 31.93 1488.59 1024.536 19.05 18.97 10.607 3.56091 5.00036 31.93 1488.58 1024.538 19.35 19.27 10.605 3.56080 5.00043 31.93 1488.58 1024.540 19.65 19.57 10.604 3.56147 5.00150 31.93 1488.59 1024.547 19.95 19.87 10.603 3.56111 5.00115 31.93 1488.59 1024.546 20.25 20.17 10.601 3.56128 5.00160 31.93 1488.59 1024.550 20.55 20.46 10.599 3.56128 5.00198 31.94 1488.59 1024.554 20.85 20.76 10.596 3.56183 5.00314 31.94 1488.60 1024.562 21.15 21.06 10.594 3.56172 5.00320 31.94 1488.60 1024.563 21.45 21.36 10.593 3.56155 5.00322 31.94 1488.60 1024.565 21.75 21.66 10.589 3.56153 5.00368 31.95 1488.59 1024.569 22.05 21.96 10.586 3.56205 5.00484 31.95 1488.59 1024.577 22.35 22.26 10.583 3.56196 5.00514 31.96 1488.59 1024.580 22.65 22.55 10.578 3.56175 5.00557 31.96 1488.58 1024.584 22.95 22.85 10.573 3.56183 5.00639 31.96 1488.57 1024.590 23.25 23.15 10.568 3.56200 5.00727 31.97 1488.57 1024.597 23.55 23.45 10.560 3.56189 5.00826 31.97 1488.55 1024.604 23.85 23.75 10.550 3.56177 5.00953 31.98 1488.53 1024.613 24.15 24.05 10.541 3.56184 5.01084 31.99 1488.51 1024.622 24.45 24.35 10.533 3.56141 5.01144 31.99 1488.49 1024.627 24.75 24.64 10.522 3.56110 5.01248 32.00 1488.47 1024.635 25.05 24.94 10.509 3.56088 5.01405 32.01 1488.43 1024.646 25.35 25.24 10.497 3.56083 5.01565 32.02 1488.41 1024.657 25.65 25.54 10.484 3.56027 5.01677 32.02 1488.37 1024.666 25.95 25.84 10.471 3.56018 5.01845 32.04 1488.34 1024.677 26.25 26.14 10.464 3.55974 5.01878 32.04 1488.33 1024.681 26.55 26.43 10.456 3.55970 5.01995 32.04 1488.31 1024.689 26.85 26.73 10.454 3.55960 5.02006 32.04 1488.31 1024.691 27.15 27.03 10.458 3.55929 5.01900 32.04 1488.32 1024.686 27.45 27.33 10.457 3.55916 5.01900 32.04 1488.32 1024.687 27.75 27.63 10.451 3.55944 5.02023 32.04 1488.31 1024.696 28.05 27.93 10.444 3.55939 5.02111 32.05 1488.30 1024.703 28.35 28.23 10.442 3.55914 5.02104 32.05 1488.30 1024.703 28.65 28.52 10.438 3.55934 5.02191 32.05 1488.30 1024.710 28.95 28.82 10.435 3.55874 5.02156 32.05 1488.28 1024.709 29.25 29.12 10.420 3.55830 5.02298 32.06 1488.25 1024.720 29.55 29.42 10.416 3.55866 5.02409 32.07 1488.25 1024.727 29.85 29.72 10.412 3.55825 5.02414 32.07 1488.23 1024.729 30.15 30.02 10.411 3.55767 5.02340 32.06 1488.23 1024.726