*2026/01/16 10:37:57.06 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 00:41:30.000 END TIME : UTC 2025/06/26 00:41:53.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 118 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.14 2 Depth metres 0.15 35 3 Temperature 'deg C (ITS90)' 9.105 16.649 4 Conductivity S/m 3.36309 3.61451 5 Conductance:Specific S/m 4.03888 5.04495 6 Salinity PSS-78 25.61 32.04 7 Speed:Sound m/s 1483.5 1501.02 8 Density kg/m^3 1018.4 1024.943 $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 : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 198 LATITUDE : 48 55.18060 N ! (deg min) LONGITUDE : 125 1.54180 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_004130 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 118 118 MERGEHDR 1.3 2026/01/16 10:35:47 118 118 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:50 118 118 CALIB 12.1 2026/01/16 10:37:20 118 118 CLEAN 5.3 2026/01/16 10:37:57 118 118 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:50 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:20 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 10:37:42 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 16.649 3.36432 4.03888 25.61 1501.02 1018.400 0.45 0.45 16.614 3.36423 4.04216 25.63 1500.94 1018.425 0.75 0.75 16.571 3.36309 4.04496 25.65 1500.83 1018.450 1.05 1.05 16.552 3.36514 4.04929 25.68 1500.81 1018.478 1.35 1.35 16.532 3.36890 4.05582 25.72 1500.80 1018.518 1.65 1.65 16.479 3.37509 4.06843 25.81 1500.74 1018.596 1.95 1.95 16.426 3.38355 4.08383 25.91 1500.70 1018.690 2.25 2.25 16.425 3.39708 4.10027 26.03 1500.83 1018.780 2.55 2.55 16.415 3.40288 4.10824 26.08 1500.87 1018.826 2.85 2.85 16.373 3.40613 4.11633 26.14 1500.81 1018.878 3.15 3.15 16.289 3.41651 4.13732 26.28 1500.71 1019.008 3.45 3.45 16.177 3.42614 4.16029 26.44 1500.54 1019.153 3.75 3.75 15.914 3.45798 4.22591 26.89 1500.24 1019.555 4.05 4.05 15.510 3.51189 4.33461 27.63 1499.82 1020.214 4.35 4.35 14.899 3.58404 4.49137 28.71 1499.10 1021.167 4.65 4.65 14.324 3.61451 4.59585 29.41 1498.06 1021.828 4.95 4.95 13.844 3.60119 4.63542 29.66 1496.77 1022.115 5.25 5.25 13.369 3.59307 4.68225 29.95 1495.54 1022.438 5.55 5.55 13.037 3.58766 4.71604 30.16 1494.68 1022.667 5.85 5.85 12.738 3.57978 4.74300 30.33 1493.87 1022.853 6.15 6.15 12.422 3.57608 4.77810 30.55 1493.06 1023.085 6.45 6.45 12.175 3.57386 4.80682 30.73 1492.43 1023.271 6.75 6.74 11.980 3.56963 4.82648 30.85 1491.91 1023.402 7.05 7.04 11.799 3.56557 4.84465 30.96 1491.42 1023.522 7.35 7.34 11.613 3.55828 4.85930 31.04 1490.88 1023.622 7.65 7.64 11.500 3.55101 4.86443 31.07 1490.52 1023.663 7.95 7.94 11.384 3.54649 4.87371 31.12 1490.18 1023.726 8.25 8.24 11.292 3.54173 4.87948 31.15 1489.90 1023.768 8.55 8.54 11.229 3.54103 4.88705 31.20 1489.74 1023.817 8.85 8.84 11.131 3.53847 4.89677 31.26 1489.47 1023.880 9.15 9.13 11.055 3.53509 4.90239 31.29 1489.24 1023.919 9.45 9.43 11.013 3.53305 4.90526 31.30 1489.12 1023.940 9.75 9.73 10.959 3.52963 4.90786 31.32 1488.95 1023.960 10.05 10.03 10.901 3.52724 4.91247 31.34 1488.78 1023.991 10.35 10.33 10.852 3.52520 4.91628 31.36 1488.64 1024.018 10.65 10.63 10.817 3.52281 4.91778 31.37 1488.52 1024.030 10.95 10.93 10.781 3.52032 4.91922 31.38 1488.41 1024.042 11.25 11.23 10.738 3.51926 4.92365 31.40 1488.29 1024.072 11.55 11.52 10.705 3.51763 4.92600 31.41 1488.19 1024.088 11.85 11.82 10.679 3.51695 4.92857 31.43 1488.12 1024.106 12.15 12.12 10.662 3.51655 4.93043 31.44 1488.08 1024.119 12.45 12.42 10.648 3.51613 4.93179 31.45 1488.04 1024.129 12.75 12.72 10.624 3.51440 4.93265 31.45 1487.97 1024.136 13.05 13.02 10.584 3.51197 4.93473 31.46 1487.84 1024.152 13.35 13.32 10.535 3.50901 4.93743 31.47 1487.69 1024.172 13.65 13.61 10.507 3.50710 4.93864 31.48 1487.60 1024.182 13.95 13.91 10.483 3.50554 4.93975 31.48 1487.52 1024.191 14.25 14.21 10.455 3.50527 4.94327 31.51 1487.45 1024.214 14.55 14.51 10.439 3.50422 4.94399 31.51 1487.41 1024.220 14.85 14.81 10.420 3.50345 4.94551 31.52 1487.35 1024.232 15.15 15.11 10.398 3.50136 4.94566 31.52 1487.28 1024.235 15.45 15.41 10.379 3.50093 4.94769 31.53 1487.23 1024.249 15.75 15.70 10.359 3.50016 4.94941 31.54 1487.17 1024.261 16.05 16.00 10.337 3.49786 4.94935 31.53 1487.09 1024.264 16.35 16.30 10.312 3.49708 4.95170 31.55 1487.03 1024.280 16.65 16.60 10.291 3.49595 4.95303 31.55 1486.96 1024.290 16.95 16.90 10.276 3.49570 4.95476 31.56 1486.93 1024.302 17.25 17.20 10.268 3.49566 4.95590 31.57 1486.91 1024.310 17.55 17.50 10.257 3.49548 4.95721 31.58 1486.88 1024.319 17.85 17.79 10.246 3.49518 4.95828 31.58 1486.86 1024.327 18.15 18.09 10.226 3.49501 4.96084 31.60 1486.81 1024.344 18.45 18.39 10.202 3.49390 4.96269 31.61 1486.74 1024.357 18.75 18.69 10.181 3.49151 4.96219 31.60 1486.66 1024.357 19.05 18.99 10.159 3.49007 4.96320 31.61 1486.59 1024.365 19.35 19.29 10.146 3.48880 4.96336 31.61 1486.55 1024.368 19.65 19.59 10.131 3.48764 4.96370 31.61 1486.50 1024.372 19.95 19.88 10.104 3.48540 4.96441 31.61 1486.41 1024.379 20.25 20.18 10.080 3.48596 4.96858 31.64 1486.36 1024.405 20.55 20.48 10.065 3.48451 4.96863 31.63 1486.31 1024.408 20.85 20.78 10.048 3.48365 4.96986 31.64 1486.26 1024.417 21.15 21.08 10.033 3.48315 4.97126 31.65 1486.22 1024.427 21.45 21.38 10.014 3.48190 4.97220 31.65 1486.16 1024.435 21.75 21.68 9.994 3.48044 4.97291 31.65 1486.10 1024.441 22.05 21.97 9.973 3.47934 4.97426 31.66 1486.04 1024.451 22.35 22.27 9.958 3.47883 4.97574 31.67 1485.99 1024.461 22.65 22.57 9.947 3.47843 4.97674 31.68 1485.97 1024.469 22.95 22.87 9.939 3.47829 4.97767 31.68 1485.95 1024.476 23.25 23.17 9.933 3.47793 4.97798 31.68 1485.93 1024.479 23.55 23.47 9.929 3.47756 4.97807 31.68 1485.92 1024.481 23.85 23.76 9.906 3.47555 4.97849 31.68 1485.84 1024.486 24.15 24.06 9.872 3.47435 4.98153 31.70 1485.75 1024.506 24.45 24.36 9.842 3.47312 4.98414 31.71 1485.66 1024.524 24.75 24.66 9.825 3.47251 4.98568 31.72 1485.61 1024.535 25.05 24.96 9.814 3.47192 4.98635 31.72 1485.58 1024.540 25.35 25.26 9.800 3.47098 4.98699 31.73 1485.54 1024.546 25.65 25.56 9.782 3.46990 4.98804 31.73 1485.49 1024.554 25.95 25.85 9.773 3.46998 4.98948 31.74 1485.47 1024.564 26.25 26.15 9.770 3.46925 4.98883 31.74 1485.46 1024.562 26.55 26.45 9.767 3.46957 4.98978 31.74 1485.46 1024.568 26.85 26.75 9.760 3.46903 4.98999 31.74 1485.44 1024.571 27.15 27.05 9.758 3.46943 4.99077 31.75 1485.44 1024.577 27.45 27.35 9.751 3.46844 4.99035 31.74 1485.42 1024.576 27.75 27.65 9.739 3.46876 4.99258 31.76 1485.39 1024.590 28.05 27.94 9.721 3.46764 4.99360 31.76 1485.34 1024.598 28.35 28.24 9.691 3.46551 4.99476 31.77 1485.24 1024.608 28.65 28.54 9.652 3.46464 4.99917 31.79 1485.13 1024.635 28.95 28.84 9.598 3.46018 5.00053 31.79 1484.94 1024.647 29.25 29.14 9.544 3.45544 5.00156 31.79 1484.75 1024.657 29.55 29.44 9.500 3.45510 5.00739 31.83 1484.64 1024.693 29.85 29.73 9.472 3.45478 5.01102 31.85 1484.56 1024.716 30.15 30.03 9.452 3.45397 5.01273 31.86 1484.51 1024.727 30.45 30.33 9.433 3.45236 5.01313 31.86 1484.44 1024.732 30.75 30.63 9.414 3.45225 5.01574 31.88 1484.40 1024.748 31.05 30.93 9.400 3.45182 5.01715 31.88 1484.36 1024.758 31.35 31.23 9.385 3.45127 5.01850 31.89 1484.32 1024.768 31.65 31.53 9.387 3.45124 5.01819 31.89 1484.33 1024.767 31.95 31.82 9.383 3.44803 5.01412 31.86 1484.28 1024.746 32.25 32.12 9.332 3.44542 5.01786 31.88 1484.12 1024.771 32.55 32.42 9.268 3.44394 5.02495 31.92 1483.94 1024.814 32.85 32.72 9.242 3.44315 5.02766 31.93 1483.87 1024.831 33.15 33.02 9.203 3.44106 5.03034 31.95 1483.75 1024.849 33.45 33.32 9.161 3.43978 5.03465 31.97 1483.63 1024.876 33.75 33.61 9.139 3.43976 5.03788 31.99 1483.57 1024.896 34.05 33.91 9.131 3.43907 5.03812 31.99 1483.55 1024.899 34.35 34.21 9.126 3.43837 5.03770 31.99 1483.53 1024.898 34.65 34.51 9.117 3.43917 5.04030 32.01 1483.52 1024.914 34.95 34.81 9.105 3.43952 5.04260 32.02 1483.50 1024.929 35.14 35.00 9.107 3.44132 5.04495 32.04 1483.53 1024.943