*2026/01/16 09:57:47.06 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/11 22:32:46.000 END TIME : UTC 2024/01/11 22:33:01.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 80 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.95 2 Depth metres 0.15 23.88 3 Temperature 'deg C (ITS90)' 7.705 10.8 4 Conductivity S/m 2.01346 3.49153 5 Conductance:Specific S/m 3.07825 4.88179 6 Salinity PSS-78 18.5 31.1 7 Speed:Sound m/s 1460.93 1488.28 8 Density kg/m^3 1014.381 1023.898 $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 : 14 LATITUDE : 48 58.23190 N ! (deg min) LONGITUDE : 125 5.38380 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240111_223246 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 80 80 MERGEHDR 1.3 2026/01/16 09:53:44 80 80 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 80 80 CALIB 12.1 2026/01/16 09:56:45 80 80 CLEAN 5.3 2026/01/16 09:57:47 80 80 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 7.705 2.01346 3.07825 18.50 1460.93 1014.381 0.45 0.45 7.873 2.07634 3.15813 19.04 1462.27 1014.786 0.75 0.75 8.132 2.25905 3.40916 20.72 1465.37 1016.076 1.05 1.05 8.350 2.39482 3.59045 21.96 1467.74 1017.013 1.35 1.35 8.468 2.50173 3.73750 22.96 1469.43 1017.781 1.65 1.66 8.518 2.54041 3.78956 23.31 1470.07 1018.055 1.95 1.96 8.589 2.60728 3.88112 23.94 1471.11 1018.536 2.25 2.26 8.641 2.64685 3.93397 24.30 1471.76 1018.815 2.55 2.56 8.725 2.69194 3.99102 24.70 1472.58 1019.116 2.85 2.86 8.819 2.73616 4.04526 25.08 1473.41 1019.401 3.15 3.16 8.860 2.76788 4.08729 25.37 1473.92 1019.624 3.45 3.46 8.990 2.83126 4.16483 25.92 1475.09 1020.033 3.75 3.76 9.087 2.86961 4.20922 26.23 1475.84 1020.267 4.05 4.06 9.196 2.91230 4.25820 26.58 1476.68 1020.525 4.35 4.35 9.295 2.94049 4.28707 26.79 1477.31 1020.676 4.65 4.65 9.324 2.94571 4.29107 26.82 1477.46 1020.697 4.95 4.95 9.384 2.97121 4.32062 27.03 1477.95 1020.854 5.25 5.25 9.484 3.02196 4.38166 27.46 1478.86 1021.178 5.55 5.55 9.664 3.12271 4.50423 28.34 1480.59 1021.831 5.85 5.85 9.833 3.18708 4.57484 28.85 1481.84 1022.205 6.15 6.15 10.001 3.24011 4.62859 29.24 1482.94 1022.488 6.45 6.45 10.118 3.27336 4.66053 29.48 1483.65 1022.655 6.75 6.75 10.166 3.27684 4.65909 29.47 1483.83 1022.645 7.05 7.05 10.198 3.28208 4.66235 29.50 1483.98 1022.662 7.35 7.35 10.216 3.28634 4.66597 29.53 1484.09 1022.682 7.65 7.65 10.232 3.29213 4.67209 29.57 1484.20 1022.715 7.95 7.95 10.247 3.29684 4.67672 29.61 1484.30 1022.741 8.25 8.24 10.272 3.30181 4.68048 29.64 1484.43 1022.761 8.55 8.54 10.285 3.30780 4.68723 29.68 1484.54 1022.798 8.85 8.84 10.293 3.31169 4.69171 29.72 1484.62 1022.823 9.15 9.14 10.320 3.31411 4.69150 29.72 1484.72 1022.821 9.45 9.44 10.336 3.31807 4.69501 29.74 1484.82 1022.840 9.75 9.74 10.353 3.32453 4.70194 29.79 1484.94 1022.878 10.05 10.04 10.354 3.34104 4.72511 29.96 1485.15 1023.006 10.35 10.34 10.396 3.34712 4.72809 29.98 1485.34 1023.021 10.65 10.64 10.408 3.35199 4.73334 30.02 1485.43 1023.050 10.95 10.94 10.423 3.35672 4.73808 30.06 1485.53 1023.076 11.25 11.23 10.441 3.37492 4.76129 30.22 1485.80 1023.203 11.55 11.53 10.459 3.38239 4.76949 30.28 1485.94 1023.247 11.85 11.83 10.475 3.38507 4.77103 30.29 1486.02 1023.256 12.15 12.13 10.486 3.38552 4.77021 30.29 1486.06 1023.252 12.45 12.43 10.489 3.38602 4.77051 30.29 1486.08 1023.255 12.75 12.73 10.489 3.38643 4.77114 30.30 1486.09 1023.259 13.05 13.03 10.490 3.38714 4.77200 30.30 1486.10 1023.265 13.35 13.33 10.492 3.38749 4.77214 30.30 1486.12 1023.267 13.65 13.63 10.496 3.38742 4.77159 30.30 1486.13 1023.265 13.95 13.92 10.495 3.38766 4.77198 30.30 1486.14 1023.268 14.25 14.22 10.494 3.38942 4.77467 30.32 1486.16 1023.285 14.55 14.52 10.496 3.39260 4.77879 30.35 1486.21 1023.308 14.85 14.82 10.500 3.39602 4.78317 30.38 1486.26 1023.333 15.15 15.12 10.507 3.40218 4.79089 30.44 1486.36 1023.376 15.45 15.42 10.533 3.40932 4.79733 30.48 1486.52 1023.411 15.75 15.72 10.557 3.41478 4.80186 30.52 1486.65 1023.435 16.05 16.02 10.570 3.42253 4.81098 30.58 1486.78 1023.485 16.35 16.31 10.583 3.42977 4.81939 30.64 1486.91 1023.532 16.65 16.61 10.592 3.43236 4.82185 30.66 1486.97 1023.546 16.95 16.91 10.590 3.43330 4.82335 30.67 1486.98 1023.556 17.25 17.21 10.586 3.43381 4.82473 30.68 1486.98 1023.565 17.55 17.51 10.584 3.43454 4.82598 30.69 1486.99 1023.573 17.85 17.81 10.586 3.43469 4.82586 30.69 1487.00 1023.573 18.15 18.11 10.587 3.43496 4.82618 30.69 1487.01 1023.576 18.45 18.41 10.599 3.43752 4.82813 30.71 1487.07 1023.587 18.75 18.70 10.613 3.44625 4.83843 30.78 1487.22 1023.644 19.05 19.00 10.635 3.45865 4.85283 30.89 1487.43 1023.723 19.35 19.30 10.651 3.45971 4.85223 30.88 1487.49 1023.720 19.65 19.60 10.658 3.45960 4.85103 30.88 1487.51 1023.714 19.95 19.90 10.655 3.45976 4.85167 30.88 1487.51 1023.719 20.25 20.20 10.660 3.46099 4.85276 30.89 1487.54 1023.726 20.55 20.50 10.674 3.46319 4.85396 30.90 1487.61 1023.732 20.85 20.80 10.693 3.46914 4.85973 30.94 1487.73 1023.764 21.15 21.09 10.709 3.47649 4.86776 31.00 1487.86 1023.808 21.45 21.39 10.737 3.48311 4.87329 31.04 1488.02 1023.837 21.75 21.69 10.760 3.48913 4.87853 31.08 1488.15 1023.866 22.05 21.99 10.793 3.49023 4.87551 31.06 1488.26 1023.847 22.35 22.29 10.800 3.49076 4.87540 31.06 1488.28 1023.848 22.65 22.59 10.785 3.49153 4.87855 31.08 1488.26 1023.867 22.95 22.89 10.770 3.49028 4.87879 31.08 1488.21 1023.871 23.25 23.19 10.766 3.48943 4.87814 31.08 1488.20 1023.869 23.55 23.48 10.721 3.48711 4.88109 31.09 1488.06 1023.890 23.95 23.88 10.699 3.48554 4.88179 31.10 1487.99 1023.898