*2026/01/16 09:57:57.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/11/26 15:34:58.000 END TIME : UTC 2024/11/26 15:35:13.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 77 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 23.05 2 Depth metres 0.15 22.97 3 Temperature 'deg C (ITS90)' 9.254 11.086 4 Conductivity S/m 2.8327 3.49278 5 Conductance:Specific S/m 4.11802 4.83952 6 Salinity PSS-78 25.64 30.84 7 Speed:Sound m/s 1475.91 1489.04 8 Density kg/m^3 1019.745 1023.629 $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 : 305 LATITUDE : 48 49.10600 N ! (deg min) LONGITUDE : 125 10.76870 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241126_153458 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:09 77 77 MERGEHDR 1.3 2026/01/16 09:54:12 77 77 HDREDIT2 3.2 2026/01/16 09:55:15 ? ? REMOVECH 8.2 2026/01/16 09:56:25 77 77 CALIB 12.1 2026/01/16 09:56:59 77 77 CLEAN 5.3 2026/01/16 09:57:57 77 77 $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 9.394 2.83270 4.11802 25.64 1476.22 1019.745 0.45 0.45 9.254 2.83998 4.14546 25.81 1475.91 1019.902 0.75 0.75 9.320 2.91350 4.24466 26.50 1477.00 1020.431 1.05 1.05 9.634 2.98015 4.30231 26.93 1478.70 1020.723 1.35 1.35 10.179 3.21914 4.57537 28.89 1483.08 1022.165 1.65 1.65 10.312 3.33791 4.72627 29.96 1484.87 1022.980 1.95 1.95 10.397 3.34855 4.73005 30.00 1485.22 1022.996 2.25 2.25 10.506 3.35399 4.72318 29.96 1485.58 1022.951 2.55 2.54 10.597 3.36120 4.72119 29.96 1485.90 1022.934 2.85 2.84 10.633 3.37297 4.73295 30.05 1486.14 1022.997 3.15 3.14 10.674 3.37926 4.73636 30.08 1486.33 1023.014 3.45 3.44 10.728 3.39270 4.74793 30.16 1486.63 1023.074 3.75 3.74 10.739 3.39861 4.75479 30.21 1486.74 1023.112 4.05 4.04 10.756 3.40196 4.75721 30.23 1486.82 1023.125 4.35 4.34 10.766 3.40685 4.76266 30.27 1486.91 1023.155 4.65 4.64 10.779 3.40896 4.76396 30.28 1486.98 1023.163 4.95 4.94 10.783 3.41040 4.76545 30.29 1487.01 1023.172 5.25 5.23 10.788 3.41238 4.76749 30.31 1487.05 1023.184 5.55 5.53 10.794 3.41464 4.76980 30.32 1487.10 1023.197 5.85 5.83 10.799 3.41668 4.77200 30.34 1487.14 1023.210 6.15 6.13 10.813 3.41795 4.77195 30.34 1487.19 1023.210 6.45 6.43 10.821 3.41959 4.77321 30.35 1487.24 1023.217 6.75 6.73 10.825 3.42024 4.77356 30.35 1487.26 1023.220 7.05 7.03 10.825 3.42203 4.77605 30.37 1487.29 1023.235 7.35 7.33 10.826 3.42317 4.77743 30.38 1487.31 1023.244 7.65 7.63 10.832 3.42281 4.77622 30.37 1487.32 1023.238 7.95 7.92 10.831 3.42354 4.77734 30.38 1487.34 1023.246 8.25 8.22 10.839 3.42419 4.77721 30.38 1487.37 1023.245 8.55 8.52 10.845 3.42534 4.77795 30.39 1487.40 1023.250 8.85 8.82 10.854 3.42881 4.78156 30.41 1487.47 1023.271 9.15 9.12 10.868 3.42739 4.77776 30.39 1487.50 1023.250 9.45 9.42 10.876 3.42999 4.78034 30.41 1487.55 1023.265 9.75 9.72 10.884 3.43136 4.78123 30.41 1487.59 1023.270 10.05 10.02 10.893 3.43523 4.78541 30.44 1487.67 1023.294 10.35 10.32 10.900 3.43614 4.78576 30.45 1487.70 1023.296 10.65 10.61 10.907 3.43818 4.78764 30.46 1487.75 1023.307 10.95 10.91 10.914 3.43897 4.78779 30.46 1487.78 1023.309 11.25 11.21 10.912 3.44314 4.79384 30.50 1487.83 1023.343 11.55 11.51 10.918 3.44527 4.79604 30.52 1487.87 1023.356 11.85 11.81 10.924 3.44718 4.79795 30.53 1487.91 1023.367 12.15 12.11 10.928 3.44909 4.79997 30.55 1487.95 1023.379 12.45 12.41 10.941 3.44886 4.79799 30.54 1487.99 1023.369 12.75 12.71 10.951 3.45156 4.80040 30.55 1488.05 1023.382 13.05 13.01 10.956 3.45190 4.80022 30.55 1488.07 1023.382 13.35 13.30 10.958 3.45199 4.79999 30.55 1488.08 1023.382 13.65 13.60 10.962 3.45319 4.80120 30.56 1488.11 1023.389 13.95 13.90 10.961 3.45497 4.80379 30.58 1488.14 1023.405 14.25 14.20 10.970 3.45518 4.80281 30.57 1488.17 1023.400 14.55 14.50 10.985 3.45627 4.80235 30.57 1488.22 1023.398 14.85 14.80 10.990 3.45753 4.80345 30.58 1488.25 1023.404 15.15 15.10 10.987 3.45905 4.80593 30.60 1488.27 1023.420 15.45 15.40 10.990 3.46007 4.80697 30.60 1488.29 1023.426 15.75 15.69 10.986 3.46150 4.80949 30.62 1488.31 1023.442 16.05 15.99 10.981 3.46174 4.81056 30.63 1488.30 1023.449 16.35 16.29 10.991 3.46468 4.81323 30.65 1488.37 1023.464 16.65 16.59 11.001 3.46722 4.81550 30.66 1488.42 1023.477 16.95 16.89 11.004 3.46750 4.81546 30.66 1488.44 1023.478 17.25 17.19 11.016 3.46959 4.81678 30.67 1488.50 1023.486 17.55 17.49 11.024 3.47250 4.81964 30.70 1488.56 1023.502 17.85 17.79 11.028 3.47244 4.81902 30.69 1488.58 1023.499 18.15 18.09 11.034 3.47357 4.81979 30.70 1488.61 1023.504 18.45 18.38 11.030 3.47442 4.82153 30.71 1488.61 1023.515 18.75 18.68 11.033 3.47485 4.82171 30.71 1488.63 1023.517 19.05 18.98 11.036 3.47541 4.82207 30.71 1488.65 1023.520 19.35 19.28 11.036 3.47683 4.82412 30.73 1488.67 1023.533 19.65 19.58 11.041 3.47740 4.82423 30.73 1488.69 1023.534 19.95 19.88 11.057 3.47989 4.82548 30.74 1488.77 1023.541 20.25 20.18 11.061 3.48254 4.82871 30.76 1488.81 1023.560 20.55 20.48 11.065 3.48606 4.83301 30.79 1488.87 1023.584 20.85 20.77 11.071 3.48944 4.83689 30.82 1488.93 1023.606 21.15 21.07 11.074 3.48995 4.83714 30.82 1488.95 1023.609 21.45 21.37 11.074 3.48915 4.83609 30.82 1488.95 1023.604 21.75 21.67 11.068 3.48873 4.83633 30.82 1488.93 1023.607 22.05 21.97 11.070 3.49083 4.83895 30.84 1488.96 1023.623 22.35 22.27 11.078 3.49177 4.83926 30.84 1489.00 1023.625 22.65 22.57 11.082 3.49223 4.83925 30.84 1489.02 1023.626 23.05 22.97 11.086 3.49278 4.83952 30.84 1489.04 1023.629