*2026/01/16 09:57:54.03 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/15 22:59:05.000 END TIME : UTC 2024/08/15 22:59:24.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 98 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 29.39 2 Depth metres 0.15 29.26 3 Temperature 'deg C (ITS90)' 9.616 18.336 4 Conductivity S/m 3.50103 4.0042 5 Conductance:Specific S/m 4.5735 5.05693 6 Salinity PSS-78 29.47 32.2 7 Speed:Sound m/s 1485.51 1510.51 8 Density kg/m^3 1020.965 1024.959 $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 : 220 LATITUDE : 48 57.93050 N ! (deg min) LONGITUDE : 125 3.46480 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240815_225905 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 98 98 MERGEHDR 1.3 2026/01/16 09:54:02 98 98 HDREDIT2 3.2 2026/01/16 09:55:10 ? ? REMOVECH 8.2 2026/01/16 09:56:21 98 98 CALIB 12.1 2026/01/16 09:56:54 98 98 CLEAN 5.3 2026/01/16 09:57:54 98 98 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:10 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:54 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 18.336 3.96394 4.57350 29.47 1510.51 1020.965 0.45 0.45 18.305 3.96252 4.57515 29.48 1510.44 1020.982 0.75 0.75 18.287 3.96234 4.57681 29.49 1510.40 1020.996 1.05 1.05 18.270 3.96249 4.57877 29.51 1510.37 1021.011 1.35 1.35 18.246 3.96434 4.58350 29.54 1510.34 1021.043 1.65 1.65 18.188 3.96505 4.59047 29.59 1510.23 1021.095 1.95 1.95 18.112 3.96758 4.60151 29.66 1510.10 1021.172 2.25 2.25 17.981 3.97763 4.62719 29.84 1509.92 1021.341 2.55 2.55 17.826 3.99762 4.66724 30.12 1509.78 1021.594 2.85 2.85 17.326 4.00420 4.73017 30.55 1508.77 1022.040 3.15 3.14 16.816 3.98264 4.76214 30.75 1507.46 1022.315 3.45 3.44 16.523 3.94570 4.75124 30.66 1506.46 1022.311 3.75 3.74 15.618 3.90390 4.80561 31.00 1504.04 1022.771 4.05 4.04 14.804 3.79060 4.76159 30.63 1501.02 1022.662 4.35 4.34 14.164 3.72607 4.75703 30.55 1498.86 1022.735 4.65 4.64 13.586 3.71147 4.80930 30.87 1497.34 1023.105 4.95 4.94 12.959 3.70280 4.87741 31.30 1495.76 1023.563 5.25 5.24 12.527 3.68724 4.91274 31.52 1494.56 1023.811 5.55 5.54 12.424 3.67541 4.91055 31.49 1494.18 1023.812 5.85 5.83 12.264 3.66214 4.91373 31.50 1493.65 1023.848 6.15 6.13 12.023 3.64915 4.92825 31.58 1492.92 1023.956 6.45 6.43 11.841 3.63554 4.93404 31.60 1492.32 1024.008 6.75 6.73 11.764 3.63091 4.93812 31.62 1492.08 1024.040 7.05 7.03 11.676 3.62841 4.94659 31.67 1491.84 1024.096 7.35 7.33 11.609 3.62414 4.94976 31.69 1491.64 1024.122 7.65 7.63 11.572 3.62150 4.95123 31.69 1491.52 1024.135 7.95 7.92 11.533 3.62272 4.95817 31.74 1491.44 1024.178 8.25 8.22 11.514 3.62277 4.96079 31.75 1491.40 1024.196 8.55 8.52 11.502 3.62182 4.96109 31.75 1491.36 1024.200 8.85 8.82 11.487 3.62034 4.96112 31.75 1491.31 1024.203 9.15 9.12 11.467 3.61946 4.96261 31.76 1491.26 1024.214 9.45 9.42 11.422 3.61617 4.96432 31.77 1491.11 1024.229 9.75 9.72 11.395 3.61440 4.96558 31.77 1491.03 1024.240 10.05 10.02 11.385 3.61323 4.96523 31.77 1491.00 1024.240 10.35 10.31 11.365 3.61290 4.96751 31.78 1490.95 1024.256 10.65 10.61 11.348 3.61094 4.96714 31.78 1490.89 1024.256 10.95 10.91 11.330 3.60934 4.96741 31.78 1490.83 1024.261 11.25 11.21 11.286 3.60729 4.97062 31.80 1490.70 1024.284 11.55 11.51 11.226 3.60226 4.97186 31.80 1490.50 1024.297 11.85 11.81 11.211 3.59895 4.96942 31.78 1490.43 1024.286 12.15 12.11 11.162 3.59632 4.97249 31.80 1490.28 1024.309 12.45 12.40 11.134 3.59550 4.97522 31.81 1490.21 1024.328 12.75 12.70 11.114 3.59354 4.97526 31.81 1490.14 1024.331 13.05 13.00 11.072 3.58888 4.97466 31.80 1489.98 1024.333 13.35 13.30 10.959 3.58423 4.98383 31.85 1489.65 1024.394 13.65 13.60 10.923 3.58304 4.98713 31.87 1489.55 1024.417 13.95 13.90 10.890 3.57931 4.98643 31.86 1489.43 1024.417 14.25 14.19 10.845 3.57609 4.98822 31.87 1489.29 1024.432 14.55 14.49 10.803 3.57444 4.99177 31.89 1489.17 1024.456 14.85 14.79 10.765 3.56675 4.98631 31.85 1488.99 1024.430 15.15 15.09 10.733 3.56004 4.98149 31.81 1488.83 1024.407 15.45 15.39 10.694 3.55310 4.97712 31.77 1488.65 1024.388 15.75 15.69 10.672 3.56598 4.99826 31.92 1488.76 1024.507 16.05 15.99 10.650 3.56417 4.99888 31.92 1488.68 1024.514 16.35 16.28 10.613 3.56094 4.99955 31.92 1488.56 1024.522 16.65 16.58 10.580 3.55994 5.00268 31.94 1488.47 1024.543 16.95 16.88 10.556 3.55858 5.00420 31.95 1488.40 1024.554 17.25 17.18 10.540 3.55777 5.00533 31.95 1488.35 1024.563 17.55 17.48 10.526 3.55709 5.00638 31.96 1488.31 1024.571 17.85 17.78 10.508 3.55584 5.00704 31.96 1488.26 1024.577 18.15 18.08 10.491 3.55465 5.00784 31.97 1488.20 1024.584 18.45 18.37 10.468 3.55365 5.00970 31.98 1488.14 1024.597 18.75 18.67 10.435 3.55244 5.01256 31.99 1488.05 1024.617 19.05 18.97 10.410 3.54980 5.01237 31.99 1487.96 1024.619 19.35 19.27 10.383 3.54667 5.01188 31.98 1487.85 1024.619 19.65 19.57 10.337 3.54458 5.01537 32.00 1487.72 1024.643 19.95 19.87 10.306 3.54222 5.01641 32.00 1487.62 1024.652 20.25 20.16 10.265 3.53992 5.01906 32.02 1487.49 1024.671 20.55 20.46 10.216 3.53823 5.02368 32.04 1487.35 1024.701 20.85 20.76 10.178 3.53448 5.02375 32.04 1487.21 1024.706 21.15 21.06 10.136 3.53218 5.02642 32.05 1487.08 1024.724 21.45 21.36 10.084 3.52849 5.02871 32.06 1486.91 1024.742 21.75 21.66 10.046 3.52567 5.03004 32.07 1486.78 1024.753 22.05 21.96 10.022 3.52304 5.02977 32.06 1486.70 1024.754 22.35 22.25 9.996 3.52182 5.03175 32.07 1486.62 1024.768 22.65 22.55 9.960 3.52092 5.03560 32.09 1486.52 1024.793 22.95 22.85 9.952 3.51970 5.03500 32.09 1486.49 1024.791 23.25 23.15 9.941 3.52015 5.03725 32.10 1486.47 1024.806 23.55 23.45 9.924 3.51812 5.03686 32.10 1486.41 1024.806 23.85 23.75 9.916 3.51806 5.03793 32.10 1486.39 1024.813 24.15 24.04 9.908 3.51764 5.03840 32.11 1486.37 1024.818 24.45 24.34 9.899 3.51676 5.03853 32.10 1486.34 1024.820 24.75 24.64 9.890 3.51674 5.03971 32.11 1486.33 1024.829 25.05 24.94 9.872 3.51593 5.04123 32.12 1486.27 1024.839 25.35 25.24 9.850 3.51478 5.04279 32.13 1486.21 1024.851 25.65 25.54 9.831 3.51350 5.04359 32.13 1486.15 1024.857 25.95 25.83 9.808 3.51248 5.04552 32.14 1486.08 1024.871 26.25 26.13 9.794 3.51099 5.04546 32.14 1486.03 1024.873 26.55 26.43 9.780 3.50979 5.04576 32.14 1485.99 1024.876 26.85 26.73 9.767 3.50913 5.04670 32.14 1485.95 1024.883 27.15 27.03 9.754 3.50979 5.04941 32.16 1485.93 1024.900 27.45 27.33 9.767 3.50799 5.04503 32.13 1485.95 1024.877 27.75 27.63 9.727 3.50787 5.05067 32.17 1485.85 1024.911 28.05 27.92 9.723 3.50648 5.04921 32.16 1485.83 1024.905 28.35 28.22 9.696 3.50538 5.05155 32.17 1485.75 1024.921 28.65 28.52 9.683 3.50378 5.05118 32.16 1485.70 1024.921 28.95 28.82 9.642 3.50221 5.05489 32.18 1485.58 1024.945 29.39 29.26 9.616 3.50103 5.05693 32.20 1485.51 1024.959