*2026/01/16 09:57:50.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/26 17:18:34.000 END TIME : UTC 2024/04/26 17:18:54.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 103 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.88 2 Depth metres 0.15 30.79 3 Temperature 'deg C (ITS90)' 10.221 11.929 4 Conductivity S/m 2.90796 3.31437 5 Conductance:Specific S/m 3.95191 4.70459 6 Salinity PSS-78 24.72 29.79 7 Speed:Sound m/s 1483.83 1486.55 8 Density kg/m^3 1018.654 1022.992 $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 : 104 LATITUDE : 49 19.41340 N ! (deg min) LONGITUDE : 126 2.49200 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240426_171834 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:58 103 103 MERGEHDR 1.3 2026/01/16 09:53:51 103 103 HDREDIT2 3.2 2026/01/16 09:55:04 ? ? REMOVECH 8.2 2026/01/16 09:56:16 103 103 CALIB 12.1 2026/01/16 09:56:49 103 103 CLEAN 5.3 2026/01/16 09:57:50 103 103 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:04 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 09:56:16 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:49 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 11.792 2.90796 3.95191 24.72 1483.83 1018.654 0.45 0.45 11.915 2.96628 4.01771 25.18 1484.83 1018.993 0.75 0.75 11.929 2.99663 4.05728 25.45 1485.21 1019.205 1.05 1.05 11.888 3.04997 4.13415 25.98 1485.70 1019.623 1.35 1.35 11.879 3.07732 4.17223 26.25 1485.98 1019.830 1.65 1.65 11.827 3.10532 4.21609 26.55 1486.17 1020.073 1.95 1.95 11.702 3.13422 4.26987 26.91 1486.16 1020.377 2.25 2.25 11.526 3.20219 4.38349 27.69 1486.47 1021.011 2.55 2.55 11.402 3.23682 4.44591 28.11 1486.55 1021.362 2.85 2.85 11.253 3.24401 4.47406 28.29 1486.25 1021.531 3.15 3.15 11.098 3.24606 4.49623 28.43 1485.87 1021.667 3.45 3.45 11.007 3.24850 4.51089 28.53 1485.66 1021.756 3.75 3.75 10.907 3.25013 4.52572 28.62 1485.42 1021.847 4.05 4.05 10.822 3.25185 4.53884 28.70 1485.22 1021.927 4.35 4.34 10.754 3.25359 4.54996 28.78 1485.07 1021.995 4.65 4.64 10.709 3.25496 4.55766 28.82 1484.97 1022.042 4.95 4.94 10.672 3.25610 4.56388 28.86 1484.89 1022.080 5.25 5.24 10.657 3.25556 4.56508 28.87 1484.85 1022.089 5.55 5.54 10.645 3.25599 4.56723 28.88 1484.83 1022.103 5.85 5.84 10.636 3.25676 4.56954 28.90 1484.82 1022.117 6.15 6.14 10.612 3.25651 4.57224 28.92 1484.76 1022.135 6.45 6.44 10.573 3.25659 4.57731 28.95 1484.66 1022.167 6.75 6.74 10.520 3.25666 4.58426 28.99 1484.52 1022.211 7.05 7.04 10.485 3.25657 4.58871 29.02 1484.43 1022.239 7.35 7.34 10.463 3.25743 4.59266 29.04 1484.39 1022.263 7.65 7.64 10.440 3.26108 4.60082 29.10 1484.38 1022.311 7.95 7.93 10.422 3.26232 4.60493 29.12 1484.35 1022.336 8.25 8.23 10.412 3.26298 4.60716 29.14 1484.34 1022.350 8.55 8.53 10.417 3.26838 4.61409 29.19 1484.42 1022.389 8.85 8.83 10.427 3.27440 4.62129 29.24 1484.52 1022.429 9.15 9.13 10.438 3.27736 4.62404 29.26 1484.59 1022.444 9.45 9.43 10.454 3.27864 4.62375 29.26 1484.66 1022.442 9.75 9.73 10.465 3.27930 4.62330 29.26 1484.70 1022.440 10.05 10.03 10.468 3.27941 4.62308 29.25 1484.71 1022.440 10.35 10.33 10.470 3.27972 4.62322 29.26 1484.72 1022.442 10.65 10.63 10.469 3.27946 4.62294 29.25 1484.72 1022.442 10.95 10.93 10.469 3.28034 4.62419 29.26 1484.74 1022.450 11.25 11.22 10.461 3.28035 4.62525 29.27 1484.72 1022.458 11.55 11.52 10.454 3.28072 4.62669 29.28 1484.71 1022.467 11.85 11.82 10.449 3.28107 4.62791 29.29 1484.71 1022.476 12.15 12.12 10.450 3.28131 4.62813 29.29 1484.72 1022.478 12.45 12.42 10.445 3.28180 4.62940 29.30 1484.72 1022.487 12.75 12.72 10.443 3.28257 4.63072 29.30 1484.73 1022.495 13.05 13.02 10.446 3.28423 4.63278 29.32 1484.76 1022.508 13.35 13.32 10.446 3.28581 4.63499 29.33 1484.78 1022.521 13.65 13.62 10.445 3.28770 4.63778 29.35 1484.81 1022.537 13.95 13.92 10.446 3.28820 4.63831 29.36 1484.82 1022.542 14.25 14.22 10.448 3.28836 4.63834 29.36 1484.83 1022.543 14.55 14.51 10.445 3.28982 4.64072 29.37 1484.85 1022.557 14.85 14.81 10.440 3.29119 4.64336 29.39 1484.85 1022.573 15.15 15.11 10.440 3.29282 4.64562 29.41 1484.88 1022.587 15.45 15.41 10.441 3.29283 4.64558 29.41 1484.88 1022.588 15.75 15.71 10.440 3.29394 4.64717 29.42 1484.90 1022.598 16.05 16.01 10.435 3.29445 4.64856 29.43 1484.90 1022.607 16.35 16.31 10.430 3.29463 4.64947 29.43 1484.89 1022.614 16.65 16.61 10.422 3.29398 4.64963 29.43 1484.87 1022.617 16.95 16.91 10.418 3.29375 4.64982 29.43 1484.86 1022.619 17.25 17.21 10.414 3.29376 4.65035 29.44 1484.85 1022.624 17.55 17.51 10.406 3.29450 4.65243 29.45 1484.85 1022.637 17.85 17.80 10.409 3.29696 4.65552 29.47 1484.89 1022.655 18.15 18.10 10.408 3.29787 4.65689 29.48 1484.90 1022.664 18.45 18.40 10.405 3.29772 4.65712 29.48 1484.90 1022.666 18.75 18.70 10.401 3.29755 4.65742 29.48 1484.89 1022.670 19.05 19.00 10.387 3.29803 4.65989 29.50 1484.86 1022.685 19.35 19.30 10.374 3.29772 4.66127 29.51 1484.83 1022.695 19.65 19.60 10.371 3.29781 4.66170 29.51 1484.83 1022.699 19.95 19.90 10.367 3.29814 4.66279 29.52 1484.82 1022.707 20.25 20.20 10.348 3.29767 4.66456 29.53 1484.78 1022.719 20.55 20.50 10.331 3.29839 4.66780 29.55 1484.74 1022.739 20.85 20.79 10.322 3.29798 4.66844 29.55 1484.72 1022.745 21.15 21.09 10.316 3.29772 4.66888 29.55 1484.71 1022.749 21.45 21.39 10.305 3.29778 4.67039 29.56 1484.68 1022.759 21.75 21.69 10.306 3.29908 4.67212 29.58 1484.70 1022.770 22.05 21.99 10.299 3.29925 4.67328 29.58 1484.69 1022.778 22.35 22.29 10.291 3.30079 4.67647 29.60 1484.70 1022.797 22.65 22.59 10.288 3.30063 4.67675 29.61 1484.69 1022.800 22.95 22.89 10.284 3.30216 4.67942 29.62 1484.70 1022.816 23.25 23.19 10.285 3.30695 4.68609 29.67 1484.77 1022.854 23.55 23.49 10.280 3.30825 4.68862 29.69 1484.77 1022.869 23.85 23.78 10.283 3.31090 4.69196 29.71 1484.82 1022.889 24.15 24.08 10.274 3.31214 4.69483 29.73 1484.82 1022.906 24.45 24.38 10.270 3.31231 4.69560 29.73 1484.81 1022.912 24.75 24.68 10.269 3.31307 4.69688 29.74 1484.82 1022.920 25.05 24.98 10.269 3.31197 4.69533 29.73 1484.81 1022.913 25.35 25.28 10.264 3.31258 4.69679 29.74 1484.82 1022.923 25.65 25.58 10.265 3.31311 4.69739 29.75 1484.83 1022.927 25.95 25.88 10.262 3.31316 4.69790 29.75 1484.83 1022.932 26.25 26.18 10.258 3.31235 4.69733 29.74 1484.81 1022.930 26.55 26.48 10.255 3.31334 4.69910 29.76 1484.82 1022.941 26.85 26.77 10.245 3.31302 4.69993 29.76 1484.79 1022.948 27.15 27.07 10.242 3.31262 4.69978 29.76 1484.79 1022.948 27.45 27.37 10.234 3.31248 4.70064 29.76 1484.77 1022.955 27.75 27.67 10.237 3.31197 4.69961 29.76 1484.77 1022.950 28.05 27.97 10.240 3.31090 4.69767 29.74 1484.77 1022.941 28.35 28.27 10.231 3.31209 4.70058 29.76 1484.77 1022.959 28.65 28.57 10.221 3.31183 4.70156 29.77 1484.74 1022.966 28.95 28.87 10.221 3.31329 4.70351 29.78 1484.77 1022.978 29.25 29.17 10.227 3.31341 4.70292 29.78 1484.79 1022.976 29.55 29.46 10.230 3.31367 4.70298 29.78 1484.80 1022.977 29.85 29.76 10.230 3.31369 4.70292 29.78 1484.81 1022.978 30.15 30.06 10.229 3.31401 4.70354 29.78 1484.82 1022.983 30.45 30.36 10.226 3.31422 4.70425 29.79 1484.81 1022.988 30.88 30.79 10.225 3.31437 4.70459 29.79 1484.82 1022.992