*2026/01/16 09:57:57.33 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/26 20:39:35.000 END TIME : UTC 2024/11/26 20:39:56.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 109 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.59 2 Depth metres 0.15 32.48 3 Temperature 'deg C (ITS90)' 8.826 11.186 4 Conductivity S/m 2.54808 3.49526 5 Conductance:Specific S/m 3.76645 4.83056 6 Salinity PSS-78 23.19 30.78 7 Speed:Sound m/s 1471.07 1489.46 8 Density kg/m^3 1017.911 1023.61 $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 : 312 LATITUDE : 48 59.46060 N ! (deg min) LONGITUDE : 125 20.01140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241126_203935 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:10 109 109 MERGEHDR 1.3 2026/01/16 09:54:13 109 109 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:25 109 109 CALIB 12.1 2026/01/16 09:56:59 109 109 CLEAN 5.3 2026/01/16 09:57:57 109 109 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:15 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 09:56:25 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:59 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 8.826 2.54808 3.76645 23.19 1471.07 1017.911 0.45 0.45 9.315 2.71832 3.96087 24.56 1474.60 1018.914 0.75 0.75 9.384 2.77961 4.04203 25.12 1475.55 1019.343 1.05 1.05 9.505 2.84498 4.12250 25.68 1476.70 1019.766 1.35 1.35 9.679 2.90574 4.18946 26.16 1477.93 1020.115 1.65 1.65 9.840 2.94227 4.22261 26.41 1478.83 1020.283 1.95 1.95 9.907 3.03156 4.34239 27.24 1480.09 1020.925 2.25 2.25 9.931 3.03663 4.34668 27.27 1480.23 1020.948 2.55 2.55 9.997 3.06425 4.37787 27.50 1480.75 1021.112 2.85 2.85 10.061 3.09342 4.41144 27.74 1481.28 1021.291 3.15 3.15 10.123 3.09830 4.41059 27.74 1481.51 1021.283 3.45 3.45 10.170 3.10913 4.42017 27.81 1481.77 1021.333 3.75 3.75 10.214 3.11564 4.42390 27.84 1481.97 1021.351 4.05 4.05 10.236 3.12936 4.44062 27.96 1482.20 1021.441 4.35 4.35 10.241 3.14425 4.46105 28.10 1482.40 1021.553 4.65 4.64 10.258 3.15769 4.47797 28.22 1482.61 1021.644 4.95 4.94 10.288 3.17217 4.49466 28.34 1482.87 1021.734 5.25 5.24 10.308 3.18161 4.50545 28.42 1483.04 1021.792 5.55 5.54 10.346 3.19280 4.51647 28.50 1483.28 1021.850 5.85 5.84 10.382 3.21463 4.54270 28.68 1483.64 1021.991 6.15 6.14 10.397 3.24186 4.57926 28.94 1484.01 1022.190 6.45 6.44 10.420 3.25567 4.59586 29.06 1484.24 1022.280 6.75 6.74 10.438 3.25680 4.59507 29.06 1484.31 1022.276 7.05 7.04 10.448 3.27524 4.61982 29.23 1484.56 1022.411 7.35 7.34 10.471 3.28251 4.62699 29.28 1484.71 1022.450 7.65 7.64 10.514 3.28316 4.62241 29.26 1484.84 1022.423 7.95 7.94 10.540 3.28664 4.62387 29.27 1484.95 1022.430 8.25 8.24 10.563 3.29494 4.63260 29.33 1485.12 1022.477 8.55 8.53 10.588 3.30858 4.64838 29.45 1485.35 1022.562 8.85 8.83 10.601 3.32235 4.66610 29.57 1485.55 1022.659 9.15 9.13 10.614 3.32625 4.66986 29.60 1485.64 1022.680 9.45 9.43 10.634 3.32785 4.66951 29.60 1485.71 1022.678 9.75 9.73 10.654 3.33130 4.67166 29.62 1485.81 1022.689 10.05 10.03 10.670 3.33261 4.67142 29.62 1485.87 1022.688 10.35 10.33 10.680 3.33721 4.67652 29.65 1485.96 1022.716 10.65 10.63 10.692 3.34398 4.68442 29.71 1486.08 1022.760 10.95 10.93 10.703 3.34782 4.68849 29.74 1486.15 1022.782 11.25 11.23 10.717 3.35099 4.69105 29.76 1486.23 1022.796 11.55 11.52 10.740 3.35345 4.69142 29.76 1486.33 1022.798 11.85 11.82 10.752 3.36148 4.70114 29.83 1486.46 1022.851 12.15 12.12 10.760 3.36706 4.70787 29.88 1486.55 1022.889 12.45 12.42 10.773 3.37226 4.71343 29.92 1486.65 1022.919 12.75 12.72 10.793 3.37644 4.71664 29.95 1486.76 1022.937 13.05 13.02 10.804 3.38013 4.72036 29.97 1486.83 1022.957 13.35 13.32 10.810 3.38274 4.72311 29.99 1486.88 1022.973 13.65 13.62 10.820 3.38522 4.72534 30.01 1486.94 1022.986 13.95 13.92 10.825 3.38731 4.72762 30.03 1486.99 1022.999 14.25 14.22 10.827 3.38979 4.73072 30.05 1487.03 1023.017 14.55 14.51 10.832 3.39106 4.73194 30.06 1487.06 1023.025 14.85 14.81 10.839 3.39325 4.73403 30.07 1487.11 1023.037 15.15 15.11 10.838 3.39738 4.73994 30.11 1487.16 1023.070 15.45 15.41 10.836 3.40212 4.74684 30.16 1487.21 1023.110 15.75 15.71 10.861 3.40433 4.74650 30.16 1487.31 1023.107 16.05 16.01 10.886 3.40703 4.74706 30.17 1487.41 1023.109 16.35 16.31 10.882 3.41429 4.75761 30.24 1487.49 1023.169 16.65 16.61 10.893 3.41780 4.76111 30.27 1487.56 1023.188 16.95 16.91 10.904 3.41888 4.76109 30.27 1487.61 1023.188 17.25 17.20 10.912 3.42060 4.76240 30.28 1487.66 1023.196 17.55 17.50 10.914 3.42212 4.76427 30.29 1487.69 1023.207 17.85 17.80 10.923 3.42432 4.76622 30.31 1487.74 1023.219 18.15 18.10 10.931 3.42485 4.76585 30.31 1487.77 1023.217 18.45 18.40 10.945 3.42930 4.77015 30.34 1487.86 1023.241 18.75 18.70 10.957 3.43306 4.77386 30.36 1487.94 1023.261 19.05 19.00 10.996 3.44044 4.77889 30.40 1488.14 1023.287 19.35 19.30 11.024 3.44485 4.78134 30.42 1488.26 1023.299 19.65 19.60 11.041 3.44911 4.78496 30.45 1488.36 1023.319 19.95 19.89 11.053 3.44934 4.78376 30.44 1488.40 1023.312 20.25 20.19 11.063 3.45151 4.78543 30.46 1488.45 1023.322 20.55 20.49 11.070 3.45344 4.78709 30.47 1488.50 1023.332 20.85 20.79 11.081 3.45738 4.79108 30.50 1488.58 1023.354 21.15 21.09 11.090 3.46275 4.79743 30.54 1488.67 1023.389 21.45 21.39 11.098 3.46490 4.79935 30.56 1488.72 1023.400 21.75 21.69 11.105 3.46714 4.80152 30.57 1488.77 1023.413 22.05 21.99 11.114 3.46930 4.80327 30.59 1488.82 1023.423 22.35 22.28 11.112 3.46988 4.80436 30.60 1488.83 1023.430 22.65 22.58 11.096 3.46959 4.80607 30.61 1488.79 1023.442 22.95 22.88 11.091 3.46811 4.80464 30.59 1488.76 1023.436 23.25 23.18 11.084 3.46561 4.80219 30.58 1488.72 1023.425 23.55 23.48 11.080 3.46494 4.80179 30.57 1488.71 1023.424 23.85 23.78 11.065 3.46341 4.80160 30.57 1488.66 1023.426 24.15 24.08 11.045 3.46368 4.80467 30.59 1488.61 1023.446 24.45 24.38 11.035 3.46424 4.80682 30.60 1488.60 1023.460 24.75 24.68 11.043 3.46531 4.80717 30.61 1488.64 1023.462 25.05 24.97 11.044 3.46805 4.81082 30.63 1488.68 1023.483 25.35 25.27 11.054 3.47080 4.81328 30.65 1488.74 1023.497 25.65 25.57 11.068 3.47207 4.81327 30.65 1488.79 1023.497 25.95 25.87 11.079 3.47338 4.81362 30.66 1488.84 1023.499 26.25 26.17 11.086 3.47487 4.81466 30.66 1488.89 1023.506 26.55 26.47 11.099 3.47724 4.81622 30.68 1488.95 1023.514 26.85 26.77 11.108 3.47900 4.81748 30.69 1489.00 1023.522 27.15 27.07 11.124 3.48099 4.81810 30.69 1489.07 1023.525 27.45 27.36 11.135 3.48325 4.81972 30.70 1489.13 1023.534 27.75 27.66 11.149 3.48572 4.82138 30.72 1489.19 1023.543 28.05 27.96 11.154 3.48662 4.82190 30.72 1489.22 1023.547 28.35 28.26 11.159 3.48744 4.82231 30.73 1489.25 1023.550 28.65 28.56 11.165 3.48791 4.82223 30.73 1489.28 1023.550 28.95 28.86 11.168 3.48863 4.82283 30.73 1489.30 1023.555 29.25 29.16 11.169 3.48867 4.82269 30.73 1489.30 1023.555 29.55 29.46 11.170 3.48820 4.82196 30.72 1489.31 1023.552 29.85 29.75 11.170 3.48894 4.82292 30.73 1489.32 1023.559 30.15 30.05 11.171 3.48921 4.82318 30.73 1489.33 1023.561 30.45 30.35 11.173 3.49107 4.82554 30.75 1489.36 1023.575 30.75 30.65 11.175 3.49142 4.82567 30.75 1489.38 1023.577 31.05 30.95 11.178 3.49212 4.82627 30.75 1489.40 1023.582 31.35 31.25 11.181 3.49302 4.82714 30.76 1489.42 1023.587 31.65 31.55 11.185 3.49410 4.82814 30.77 1489.45 1023.594 31.95 31.85 11.186 3.49445 4.82851 30.77 1489.46 1023.597 32.25 32.14 11.179 3.49526 4.83056 30.78 1489.45 1023.610 32.59 32.48 11.185 3.49171 4.82477 30.74 1489.43 1023.579