*2026/01/16 09:47:05.22 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/12/01 21:46:46.000 END TIME : UTC 2023/12/01 21:47:02.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 83 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 24.76 2 Depth metres 0.15 24.75 3 Temperature 'deg C (ITS90)' 10.082 11.655 4 Conductivity S/m 2.08621 3.15464 5 Conductance:Specific S/m 2.97331 4.30363 6 Salinity PSS-78 17.99 27.13 7 Speed:Sound m/s 1469.52 1486.61 8 Density kg/m^3 1013.696 1020.66 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 98 LATITUDE : 49 8.94190 N ! (deg min) LONGITUDE : 125 47.85850 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231201_214646 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:53 83 83 MERGEHDR 1.3 2026/01/15 13:41:48 83 83 HDREDIT2 3.2 2026/01/15 14:00:57 ? ? REMOVECH 8.2 2026/01/15 14:01:18 83 83 CALIB 12.1 2026/01/16 09:46:09 83 83 CLEAN 5.3 2026/01/16 09:47:05 83 83 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:57 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:09 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 09:47:01 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 10.082 2.08621 2.97331 17.99 1469.52 1013.696 0.45 0.45 10.171 2.23333 3.17500 19.33 1471.48 1014.729 0.75 0.75 10.256 2.28875 3.24589 19.81 1472.39 1015.090 1.05 1.05 10.332 2.37868 3.36620 20.62 1473.65 1015.710 1.35 1.36 10.389 2.41958 3.41857 20.98 1474.30 1015.980 1.65 1.66 10.433 2.46098 3.47273 21.35 1474.91 1016.261 1.95 1.96 10.491 2.48837 3.50562 21.57 1475.40 1016.429 2.25 2.26 10.586 2.55361 3.58798 22.14 1476.43 1016.854 2.55 2.56 10.721 2.65904 3.72197 23.06 1478.04 1017.550 2.85 2.86 10.822 2.69165 3.75696 23.30 1478.71 1017.727 3.15 3.16 10.866 2.69663 3.75931 23.32 1478.90 1017.736 3.45 3.46 10.896 2.71996 3.78872 23.52 1479.25 1017.891 3.75 3.76 10.936 2.73343 3.80323 23.63 1479.53 1017.965 4.05 4.06 10.970 2.74141 3.81073 23.68 1479.72 1018.003 4.35 4.36 11.017 2.74834 3.81528 23.72 1479.94 1018.024 4.65 4.66 11.067 2.77132 3.84189 23.90 1480.35 1018.161 4.95 4.96 11.091 2.80040 3.87968 24.16 1480.75 1018.361 5.25 5.26 11.106 2.82094 3.90652 24.35 1481.03 1018.504 5.55 5.56 11.147 2.83153 3.91670 24.42 1481.27 1018.555 5.85 5.86 11.168 2.85039 3.94046 24.59 1481.55 1018.681 6.15 6.16 11.172 2.86068 3.95429 24.68 1481.68 1018.756 6.45 6.46 11.185 2.87166 3.96800 24.78 1481.85 1018.829 6.75 6.76 11.210 2.88792 3.98770 24.91 1482.11 1018.933 7.05 7.06 11.255 2.89807 3.99679 24.98 1482.35 1018.978 7.35 7.36 11.302 2.92613 4.03025 25.21 1482.81 1019.154 7.65 7.66 11.328 2.93912 4.04530 25.32 1483.03 1019.233 7.95 7.96 11.356 2.96046 4.07151 25.50 1483.35 1019.372 8.25 8.26 11.408 2.99465 4.11262 25.79 1483.89 1019.588 8.55 8.56 11.460 3.03364 4.16022 26.13 1484.48 1019.840 8.85 8.86 11.515 3.05503 4.18321 26.29 1484.88 1019.959 9.15 9.16 11.538 3.06242 4.19070 26.34 1485.03 1019.998 9.45 9.46 11.556 3.06860 4.19714 26.39 1485.15 1020.032 9.75 9.76 11.565 3.07775 4.20857 26.47 1485.28 1020.094 10.05 10.06 11.579 3.08644 4.21888 26.54 1485.42 1020.150 10.35 10.36 11.592 3.09286 4.22618 26.59 1485.53 1020.189 10.65 10.66 11.601 3.09716 4.23093 26.63 1485.61 1020.215 10.95 10.96 11.602 3.09609 4.22941 26.62 1485.61 1020.208 11.25 11.26 11.602 3.10259 4.23825 26.68 1485.69 1020.257 11.55 11.56 11.615 3.10633 4.24188 26.71 1485.77 1020.276 11.85 11.86 11.625 3.10703 4.24172 26.71 1485.81 1020.276 12.15 12.16 11.621 3.10672 4.24168 26.70 1485.80 1020.277 12.45 12.46 11.619 3.10636 4.24141 26.70 1485.80 1020.277 12.75 12.76 11.625 3.10818 4.24329 26.72 1485.83 1020.288 13.05 13.06 11.628 3.10951 4.24477 26.73 1485.86 1020.297 13.35 13.36 11.630 3.11072 4.24612 26.74 1485.89 1020.305 13.65 13.66 11.625 3.11037 4.24624 26.74 1485.88 1020.308 13.95 13.96 11.618 3.11042 4.24709 26.74 1485.86 1020.314 14.25 14.26 11.614 3.11048 4.24767 26.74 1485.86 1020.319 14.55 14.56 11.626 3.11168 4.24795 26.75 1485.91 1020.321 14.85 14.86 11.628 3.11156 4.24754 26.74 1485.92 1020.319 15.15 15.16 11.624 3.11213 4.24873 26.75 1485.92 1020.328 15.45 15.46 11.620 3.11371 4.25132 26.77 1485.93 1020.343 15.75 15.76 11.624 3.11388 4.25114 26.77 1485.95 1020.343 16.05 16.06 11.621 3.11377 4.25130 26.77 1485.94 1020.346 16.35 16.36 11.614 3.11318 4.25137 26.77 1485.92 1020.348 16.65 16.66 11.613 3.11336 4.25166 26.77 1485.93 1020.351 16.95 16.96 11.631 3.11650 4.25386 26.79 1486.01 1020.362 17.25 17.26 11.637 3.12492 4.26474 26.86 1486.13 1020.422 17.55 17.56 11.641 3.12719 4.26730 26.88 1486.17 1020.436 17.85 17.86 11.641 3.12492 4.26427 26.86 1486.15 1020.421 18.15 18.16 11.638 3.12427 4.26366 26.86 1486.14 1020.419 18.45 18.46 11.631 3.12214 4.26158 26.84 1486.10 1020.410 18.75 18.76 11.621 3.11551 4.25368 26.79 1486.01 1020.370 19.05 19.05 11.617 3.12187 4.26290 26.85 1486.07 1020.421 19.35 19.35 11.633 3.13331 4.27666 26.95 1486.25 1020.495 19.65 19.65 11.641 3.13054 4.27188 26.91 1486.24 1020.470 19.95 19.95 11.647 3.13344 4.27522 26.94 1486.29 1020.489 20.25 20.25 11.644 3.13418 4.27648 26.95 1486.30 1020.497 20.55 20.55 11.645 3.13680 4.27997 26.97 1486.34 1020.517 20.85 20.85 11.649 3.13467 4.27666 26.95 1486.33 1020.500 21.15 21.15 11.644 3.13670 4.27999 26.97 1486.34 1020.520 21.45 21.45 11.644 3.13679 4.28013 26.97 1486.35 1020.522 21.75 21.75 11.642 3.14253 4.28817 27.03 1486.41 1020.567 22.05 22.05 11.641 3.14521 4.29187 27.05 1486.45 1020.588 22.35 22.35 11.652 3.14850 4.29515 27.08 1486.52 1020.606 22.65 22.65 11.655 3.15055 4.29760 27.09 1486.55 1020.620 22.95 22.95 11.653 3.15369 4.30207 27.12 1486.59 1020.646 23.25 23.25 11.635 3.15272 4.30286 27.13 1486.54 1020.653 23.55 23.55 11.644 3.15362 4.30306 27.13 1486.57 1020.654 23.85 23.85 11.651 3.15464 4.30363 27.13 1486.61 1020.658 24.15 24.15 11.647 3.15434 4.30362 27.13 1486.60 1020.660 24.45 24.45 11.645 3.14913 4.29679 27.09 1486.54 1020.624 24.76 24.75 11.648 3.14442 4.29002 27.04 1486.50 1020.589