*2026/01/16 09:57:53.00 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/07/10 18:15:55.000 END TIME : UTC 2024/07/10 18:16:20.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 129 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 38.6 2 Depth metres 0.15 38.42 3 Temperature 'deg C (ITS90)' 9.27 19.787 4 Conductivity S/m 3.47705 3.76968 5 Conductance:Specific S/m 3.88175 5.11943 6 Salinity PSS-78 24.61 32.59 7 Speed:Sound m/s 1484.86 1509.29 8 Density kg/m^3 1016.911 1025.361 $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 : 176 LATITUDE : 49 41.73690 N ! (deg min) LONGITUDE : 126 29.51940 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240710_181555 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:03 129 129 MERGEHDR 1.3 2026/01/16 09:53:57 129 129 HDREDIT2 3.2 2026/01/16 09:55:07 ? ? REMOVECH 8.2 2026/01/16 09:56:19 129 129 CALIB 12.1 2026/01/16 09:56:52 129 129 CLEAN 5.3 2026/01/16 09:57:53 129 129 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:07 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 09:56:19 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:52 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 19.787 3.47705 3.88175 24.61 1509.29 1016.911 0.45 0.45 19.568 3.47880 3.90282 24.75 1508.82 1017.075 0.75 0.75 19.401 3.48133 3.92029 24.87 1508.47 1017.206 1.05 1.05 19.032 3.62730 4.11896 26.26 1508.96 1018.353 1.35 1.35 18.700 3.71575 4.25144 27.19 1509.03 1019.141 1.65 1.65 18.326 3.74325 4.31986 27.66 1508.46 1019.591 1.95 1.95 17.909 3.75439 4.37481 28.03 1507.65 1019.977 2.25 2.25 17.699 3.75815 4.40070 28.21 1507.23 1020.161 2.55 2.55 17.306 3.76479 4.44943 28.54 1506.42 1020.505 2.85 2.85 16.824 3.76416 4.50001 28.88 1505.34 1020.875 3.15 3.15 16.356 3.76038 4.54633 29.18 1504.25 1021.215 3.45 3.45 16.033 3.76585 4.58877 29.47 1503.57 1021.506 3.75 3.75 15.264 3.76968 4.68118 30.08 1501.86 1022.145 4.05 4.05 14.645 3.74835 4.72737 30.37 1500.21 1022.498 4.35 4.35 14.172 3.73398 4.76608 30.61 1498.96 1022.783 4.65 4.65 13.611 3.72719 4.82658 31.00 1497.57 1023.197 4.95 4.95 13.091 3.70307 4.86085 31.20 1496.08 1023.455 5.25 5.24 12.403 3.68147 4.92135 31.57 1494.19 1023.872 5.55 5.54 12.116 3.66992 4.94389 31.70 1493.37 1024.030 5.85 5.84 11.997 3.66186 4.94887 31.72 1492.99 1024.071 6.15 6.14 11.892 3.65798 4.95766 31.77 1492.70 1024.132 6.45 6.44 11.825 3.65648 4.96471 31.82 1492.52 1024.179 6.75 6.74 11.763 3.65337 4.96877 31.84 1492.34 1024.209 7.05 7.04 11.707 3.65119 4.97349 31.87 1492.18 1024.242 7.35 7.33 11.652 3.64560 4.97331 31.86 1491.99 1024.248 7.65 7.63 11.612 3.64081 4.97216 31.85 1491.84 1024.246 7.95 7.93 11.553 3.63601 4.97365 31.85 1491.64 1024.262 8.25 8.23 11.472 3.63396 4.98184 31.90 1491.43 1024.316 8.55 8.53 11.389 3.63189 4.99036 31.95 1491.20 1024.372 8.85 8.83 11.305 3.62247 4.98900 31.93 1490.89 1024.374 9.15 9.13 11.262 3.62174 4.99390 31.96 1490.78 1024.406 9.45 9.42 11.214 3.61989 4.99797 31.98 1490.65 1024.434 9.75 9.72 11.166 3.61798 5.00193 32.01 1490.51 1024.461 10.05 10.02 11.135 3.61686 5.00466 32.02 1490.42 1024.480 10.35 10.32 11.100 3.61476 5.00660 32.03 1490.32 1024.495 10.65 10.62 11.056 3.61181 5.00858 32.04 1490.18 1024.511 10.95 10.92 11.000 3.60807 5.01120 32.05 1490.00 1024.532 11.25 11.21 10.955 3.60328 5.01082 32.05 1489.84 1024.535 11.55 11.51 10.911 3.60053 5.01306 32.06 1489.70 1024.552 11.85 11.81 10.870 3.59575 5.01227 32.05 1489.54 1024.552 12.15 12.11 10.820 3.59432 5.01718 32.07 1489.41 1024.585 12.45 12.41 10.785 3.59369 5.02121 32.10 1489.32 1024.611 12.75 12.71 10.760 3.59232 5.02286 32.11 1489.24 1024.624 13.05 13.01 10.735 3.59200 5.02587 32.13 1489.18 1024.644 13.35 13.30 10.702 3.58832 5.02543 32.12 1489.06 1024.645 13.65 13.60 10.682 3.58720 5.02657 32.12 1489.00 1024.654 13.95 13.90 10.674 3.58620 5.02630 32.12 1488.98 1024.655 14.25 14.20 10.656 3.58176 5.02261 32.09 1488.88 1024.637 14.55 14.50 10.635 3.57806 5.02045 32.07 1488.79 1024.628 14.85 14.80 10.610 3.57949 5.02598 32.11 1488.75 1024.661 15.15 15.09 10.587 3.58024 5.03032 32.14 1488.70 1024.689 15.45 15.39 10.571 3.58041 5.03279 32.15 1488.67 1024.705 15.75 15.69 10.545 3.57915 5.03464 32.16 1488.60 1024.718 16.05 15.99 10.539 3.57886 5.03516 32.17 1488.58 1024.723 16.35 16.29 10.524 3.57870 5.03696 32.18 1488.55 1024.735 16.65 16.59 10.506 3.57797 5.03852 32.19 1488.50 1024.746 16.95 16.89 10.498 3.57785 5.03944 32.19 1488.48 1024.753 17.25 17.18 10.471 3.57622 5.04099 32.20 1488.40 1024.765 17.55 17.48 10.474 3.57540 5.03952 32.19 1488.40 1024.758 17.85 17.78 10.460 3.57539 5.04138 32.20 1488.37 1024.771 18.15 18.08 10.444 3.57463 5.04271 32.21 1488.33 1024.780 18.45 18.38 10.424 3.57257 5.04264 32.20 1488.26 1024.783 18.75 18.68 10.396 3.57098 5.04434 32.21 1488.17 1024.795 19.05 18.97 10.358 3.56799 5.04551 32.22 1488.05 1024.806 19.35 19.27 10.319 3.56406 5.04547 32.21 1487.91 1024.809 19.65 19.57 10.269 3.55852 5.04489 32.20 1487.72 1024.811 19.95 19.87 10.206 3.55392 5.04725 32.21 1487.51 1024.830 20.25 20.17 10.141 3.55248 5.05460 32.25 1487.33 1024.876 20.55 20.47 10.086 3.54806 5.05618 32.26 1487.14 1024.890 20.85 20.76 10.062 3.54612 5.05691 32.26 1487.06 1024.896 21.15 21.06 10.033 3.54448 5.05883 32.27 1486.97 1024.910 21.45 21.36 10.009 3.54369 5.06111 32.28 1486.91 1024.926 21.75 21.66 9.978 3.54313 5.06483 32.30 1486.83 1024.949 22.05 21.96 9.963 3.54236 5.06592 32.31 1486.78 1024.958 22.35 22.26 9.943 3.54129 5.06730 32.32 1486.72 1024.968 22.65 22.55 9.927 3.54181 5.07025 32.33 1486.70 1024.986 22.95 22.85 9.909 3.54019 5.07061 32.33 1486.63 1024.991 23.25 23.15 9.882 3.53862 5.07221 32.34 1486.55 1025.002 23.55 23.45 9.864 3.53836 5.07448 32.36 1486.51 1025.017 23.85 23.75 9.859 3.53726 5.07369 32.35 1486.49 1025.015 24.15 24.05 9.842 3.53636 5.07481 32.35 1486.44 1025.023 24.45 24.34 9.831 3.53654 5.07669 32.37 1486.42 1025.035 24.75 24.64 9.826 3.53583 5.07637 32.36 1486.40 1025.035 25.05 24.94 9.805 3.53590 5.07959 32.38 1486.35 1025.055 25.35 25.24 9.788 3.53465 5.08031 32.39 1486.30 1025.062 25.65 25.54 9.773 3.53426 5.08183 32.39 1486.26 1025.072 25.95 25.84 9.763 3.53292 5.08145 32.39 1486.22 1025.072 26.25 26.13 9.744 3.53165 5.08241 32.39 1486.16 1025.080 26.55 26.43 9.721 3.52975 5.08309 32.40 1486.08 1025.086 26.85 26.73 9.680 3.52825 5.08686 32.42 1485.97 1025.110 27.15 27.03 9.667 3.52820 5.08873 32.43 1485.94 1025.123 27.45 27.33 9.660 3.52734 5.08852 32.43 1485.91 1025.123 27.75 27.63 9.654 3.52731 5.08927 32.43 1485.90 1025.129 28.05 27.92 9.645 3.52695 5.09006 32.43 1485.88 1025.135 28.35 28.22 9.640 3.52673 5.09051 32.44 1485.87 1025.139 28.65 28.52 9.635 3.52700 5.09163 32.44 1485.87 1025.147 28.95 28.82 9.616 3.52574 5.09269 32.45 1485.81 1025.155 29.25 29.12 9.599 3.52519 5.09436 32.46 1485.76 1025.166 29.55 29.42 9.559 3.52208 5.09577 32.46 1485.62 1025.177 29.85 29.71 9.553 3.52191 5.09643 32.47 1485.61 1025.183 30.15 30.01 9.535 3.52017 5.09658 32.46 1485.55 1025.186 30.45 30.31 9.520 3.51934 5.09756 32.47 1485.50 1025.193 30.75 30.61 9.503 3.51886 5.09932 32.48 1485.46 1025.205 31.05 30.91 9.490 3.51883 5.10127 32.49 1485.43 1025.218 31.35 31.21 9.481 3.51822 5.10164 32.49 1485.41 1025.222 31.65 31.50 9.472 3.51781 5.10242 32.50 1485.38 1025.228 31.95 31.80 9.468 3.51742 5.10241 32.50 1485.37 1025.229 32.25 32.10 9.461 3.51717 5.10307 32.50 1485.36 1025.234 32.55 32.40 9.458 3.51718 5.10355 32.50 1485.35 1025.238 32.85 32.70 9.442 3.51643 5.10483 32.51 1485.31 1025.248 33.15 33.00 9.427 3.51590 5.10633 32.52 1485.27 1025.258 33.45 33.29 9.429 3.51517 5.10497 32.51 1485.27 1025.251 33.75 33.59 9.412 3.51399 5.10579 32.51 1485.21 1025.258 34.05 33.89 9.413 3.51438 5.10613 32.51 1485.23 1025.261 34.35 34.19 9.389 3.51359 5.10853 32.53 1485.16 1025.277 34.65 34.49 9.378 3.51351 5.11005 32.54 1485.14 1025.287 34.95 34.79 9.377 3.51249 5.10883 32.53 1485.12 1025.282 35.25 35.08 9.360 3.51105 5.10924 32.53 1485.07 1025.286 35.55 35.38 9.330 3.50932 5.11118 32.54 1484.97 1025.299 35.85 35.68 9.308 3.50995 5.11535 32.56 1484.93 1025.325 36.15 35.98 9.309 3.51034 5.11576 32.57 1484.94 1025.328 36.45 36.28 9.298 3.50897 5.11538 32.56 1484.90 1025.328 36.75 36.57 9.290 3.50916 5.11687 32.57 1484.89 1025.338 37.05 36.87 9.284 3.50891 5.11743 32.57 1484.88 1025.343 37.35 37.17 9.279 3.50873 5.11792 32.58 1484.86 1025.347 37.65 37.47 9.286 3.51045 5.11941 32.59 1484.91 1025.356 37.95 37.77 9.293 3.50901 5.11619 32.57 1484.91 1025.339 38.25 38.07 9.282 3.50781 5.11612 32.56 1484.88 1025.340 38.60 38.42 9.270 3.50886 5.11943 32.58 1484.86 1025.361