*2026/01/16 10:37:43.15 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/21 17:11:15.000 END TIME : UTC 2025/01/21 17:11:42.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 136 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.54 2 Depth metres 0.15 40.53 3 Temperature 'deg C (ITS90)' 6.381 11.67 4 Conductivity S/m 1.45423 3.16876 5 Conductance:Specific S/m 2.3171 4.36932 6 Salinity PSS-78 13.49 27.54 7 Speed:Sound m/s 1449.31 1487.09 8 Density kg/m^3 1010.577 1021.181 $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 : 4 LATITUDE : 49 7.50650 N ! (deg min) LONGITUDE : 125 44.69790 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250121_171115 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:22 136 136 MERGEHDR 1.3 2026/01/16 10:35:37 136 136 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 136 136 CALIB 12.1 2026/01/16 10:37:09 136 136 CLEAN 5.3 2026/01/16 10:37:43 136 136 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 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 6.381 1.45423 2.31710 13.49 1449.31 1010.577 0.45 0.45 7.489 1.63836 2.52142 14.87 1455.59 1011.564 0.75 0.76 8.362 2.25010 3.37229 20.50 1466.00 1015.873 1.05 1.06 8.044 2.41108 3.64829 22.31 1466.99 1017.329 1.35 1.36 7.953 2.50853 3.80618 23.36 1467.93 1018.164 1.65 1.66 8.240 2.53942 3.81987 23.49 1469.20 1018.227 1.95 1.96 8.603 2.57344 3.82921 23.59 1470.74 1018.261 2.25 2.26 8.786 2.60628 3.85705 23.80 1471.70 1018.401 2.55 2.56 8.940 2.64170 3.89166 24.05 1472.60 1018.577 2.85 2.86 9.150 2.68022 3.92418 24.29 1473.70 1018.739 3.15 3.16 9.322 2.69579 3.92722 24.33 1474.40 1018.746 3.45 3.46 9.425 2.70684 3.93150 24.37 1474.84 1018.764 3.75 3.76 9.434 2.71272 3.93898 24.42 1474.94 1018.804 4.05 4.06 9.455 2.70284 3.92226 24.31 1474.89 1018.715 4.35 4.36 9.453 2.70684 3.92827 24.35 1474.93 1018.749 4.65 4.66 9.458 2.70578 3.92619 24.33 1474.94 1018.739 4.95 4.96 9.384 2.70769 3.93741 24.40 1474.75 1018.804 5.25 5.26 9.340 2.71548 3.95382 24.51 1474.72 1018.896 5.55 5.56 9.322 2.71685 3.95793 24.54 1474.69 1018.920 5.85 5.86 9.325 2.72465 3.96896 24.61 1474.80 1018.979 6.15 6.16 9.323 2.72986 3.97674 24.66 1474.86 1019.022 6.45 6.46 9.340 2.73186 3.97763 24.67 1474.94 1019.027 6.75 6.76 9.371 2.73998 3.98591 24.73 1475.13 1019.071 7.05 7.06 9.411 2.74747 3.99215 24.78 1475.34 1019.103 7.35 7.36 9.462 2.75165 3.99226 24.78 1475.55 1019.101 7.65 7.66 9.501 2.75394 3.99112 24.78 1475.69 1019.094 7.95 7.96 9.515 2.75461 3.99050 24.78 1475.75 1019.091 8.25 8.26 9.535 2.75605 3.99020 24.78 1475.83 1019.090 8.55 8.56 9.558 2.75751 3.98968 24.78 1475.92 1019.087 8.85 8.86 9.585 2.75813 3.98746 24.76 1476.01 1019.074 9.15 9.16 9.618 2.76300 3.99066 24.79 1476.17 1019.090 9.45 9.46 9.667 2.77197 3.99804 24.84 1476.42 1019.128 9.75 9.76 9.700 2.77914 4.00452 24.89 1476.61 1019.161 10.05 10.06 9.715 2.78564 4.01220 24.94 1476.73 1019.203 10.35 10.36 9.746 2.79318 4.01939 25.00 1476.92 1019.240 10.65 10.66 9.788 2.80547 4.03223 25.09 1477.19 1019.307 10.95 10.96 9.840 2.81027 4.03316 25.10 1477.40 1019.309 11.25 11.26 9.885 2.82273 4.04572 25.19 1477.68 1019.374 11.55 11.56 9.904 2.83298 4.05821 25.28 1477.86 1019.441 11.85 11.86 9.944 2.84962 4.07739 25.41 1478.18 1019.542 12.15 12.16 9.994 2.85260 4.07587 25.41 1478.36 1019.531 12.45 12.46 10.020 2.85908 4.08204 25.45 1478.52 1019.564 12.75 12.76 10.070 2.86473 4.08430 25.47 1478.73 1019.573 13.05 13.06 10.096 2.87730 4.09924 25.58 1478.96 1019.653 13.35 13.36 10.133 2.88234 4.10203 25.60 1479.13 1019.666 13.65 13.66 10.131 2.88591 4.10734 25.64 1479.17 1019.696 13.95 13.96 10.146 2.88756 4.10789 25.64 1479.24 1019.699 14.25 14.26 10.167 2.88917 4.10775 25.64 1479.32 1019.698 14.55 14.56 10.162 2.88750 4.10597 25.63 1479.29 1019.690 14.85 14.86 10.141 2.88672 4.10728 25.64 1479.23 1019.700 15.15 15.16 10.122 2.88533 4.10760 25.64 1479.16 1019.704 15.45 15.46 10.100 2.88531 4.11016 25.65 1479.10 1019.721 15.75 15.76 10.077 2.88484 4.11214 25.66 1479.04 1019.735 16.05 16.06 10.055 2.88222 4.11105 25.65 1478.95 1019.732 16.35 16.36 10.043 2.88139 4.11124 25.65 1478.91 1019.735 16.65 16.66 10.037 2.88154 4.11215 25.66 1478.90 1019.742 16.95 16.96 10.035 2.88115 4.11175 25.66 1478.90 1019.741 17.25 17.26 10.032 2.88091 4.11183 25.66 1478.89 1019.743 17.55 17.56 10.026 2.88018 4.11154 25.65 1478.87 1019.743 17.85 17.86 10.008 2.87870 4.11149 25.65 1478.80 1019.745 18.15 18.16 9.972 2.87657 4.11269 25.66 1478.68 1019.756 18.45 18.46 9.927 2.87645 4.11781 25.69 1478.56 1019.788 18.75 18.76 9.880 2.87552 4.12201 25.71 1478.42 1019.815 19.05 19.06 9.846 2.86940 4.11726 25.68 1478.25 1019.793 19.35 19.36 9.818 2.86759 4.11796 25.68 1478.16 1019.800 19.65 19.66 9.795 2.86670 4.11941 25.68 1478.08 1019.811 19.95 19.96 9.772 2.86539 4.12020 25.69 1478.01 1019.818 20.25 20.26 9.747 2.86379 4.12091 25.69 1477.92 1019.825 20.55 20.56 9.724 2.86364 4.12349 25.70 1477.86 1019.841 20.85 20.86 9.712 2.86395 4.12527 25.72 1477.83 1019.853 21.15 21.16 9.710 2.86342 4.12474 25.71 1477.83 1019.852 21.45 21.46 9.708 2.86349 4.12509 25.71 1477.83 1019.855 21.75 21.76 9.706 2.86266 4.12413 25.71 1477.82 1019.851 22.05 22.06 9.706 2.86304 4.12475 25.71 1477.82 1019.856 22.35 22.36 9.707 2.86378 4.12561 25.72 1477.84 1019.862 22.65 22.66 9.712 2.86412 4.12556 25.72 1477.86 1019.862 22.95 22.96 9.716 2.86513 4.12650 25.72 1477.89 1019.868 23.25 23.26 9.723 2.86575 4.12663 25.73 1477.92 1019.870 23.55 23.56 9.738 2.86746 4.12731 25.73 1477.99 1019.874 23.85 23.86 9.751 2.86970 4.12895 25.74 1478.06 1019.883 24.15 24.16 9.750 2.87279 4.13346 25.77 1478.10 1019.909 24.45 24.46 9.756 2.87569 4.13700 25.80 1478.16 1019.928 24.75 24.76 9.762 2.87612 4.13683 25.80 1478.19 1019.928 25.05 25.06 9.761 2.87626 4.13714 25.80 1478.19 1019.931 25.35 25.36 9.755 2.87606 4.13761 25.80 1478.17 1019.936 25.65 25.66 9.741 2.87544 4.13835 25.81 1478.13 1019.942 25.95 25.96 9.718 2.87427 4.13941 25.81 1478.06 1019.950 26.25 26.26 9.687 2.87151 4.13920 25.81 1477.94 1019.953 26.55 26.56 9.660 2.87033 4.14067 25.81 1477.85 1019.964 26.85 26.86 9.629 2.86778 4.14067 25.81 1477.74 1019.967 27.15 27.16 9.600 2.86489 4.13997 25.80 1477.63 1019.966 27.45 27.46 9.570 2.86067 4.13754 25.78 1477.49 1019.957 27.75 27.75 9.514 2.85736 4.13940 25.79 1477.30 1019.971 28.05 28.05 9.465 2.85657 4.14419 25.82 1477.15 1020.001 28.35 28.35 9.447 2.85628 4.14596 25.83 1477.10 1020.013 28.65 28.65 9.429 2.85692 4.14904 25.85 1477.06 1020.032 28.95 28.95 9.412 2.85861 4.15346 25.87 1477.04 1020.058 29.25 29.25 9.402 2.85984 4.15649 25.89 1477.03 1020.076 29.55 29.55 9.399 2.86132 4.15900 25.91 1477.05 1020.091 29.85 29.85 9.404 2.86305 4.16095 25.93 1477.09 1020.103 30.15 30.15 9.417 2.86681 4.16485 25.95 1477.17 1020.124 30.45 30.45 9.435 2.87109 4.16884 25.98 1477.28 1020.146 30.75 30.75 9.447 2.87566 4.17399 26.02 1477.38 1020.174 31.05 31.05 9.468 2.87752 4.17421 26.02 1477.46 1020.175 31.35 31.35 9.480 2.88038 4.17687 26.04 1477.54 1020.190 31.65 31.65 9.474 2.88043 4.17764 26.05 1477.53 1020.195 31.95 31.95 9.462 2.87878 4.17669 26.04 1477.48 1020.192 32.25 32.25 9.448 2.87855 4.17816 26.05 1477.44 1020.203 32.55 32.55 9.437 2.87792 4.17853 26.05 1477.40 1020.206 32.85 32.85 9.425 2.87682 4.17837 26.05 1477.36 1020.208 33.15 33.15 9.412 2.87518 4.17764 26.04 1477.31 1020.206 33.45 33.45 9.395 2.87357 4.17730 26.04 1477.25 1020.206 33.75 33.75 9.376 2.87300 4.17884 26.04 1477.19 1020.217 34.05 34.05 9.358 2.87288 4.18079 26.05 1477.14 1020.230 34.35 34.35 9.345 2.87348 4.18330 26.07 1477.11 1020.245 34.65 34.65 9.340 2.87422 4.18496 26.08 1477.11 1020.256 34.95 34.95 9.343 2.87625 4.18749 26.10 1477.15 1020.270 35.25 35.25 9.357 2.87707 4.18701 26.10 1477.21 1020.268 35.55 35.55 9.366 2.88134 4.19209 26.13 1477.29 1020.296 35.85 35.85 9.390 2.88555 4.19537 26.16 1477.41 1020.314 36.15 36.15 9.415 2.89011 4.19891 26.18 1477.55 1020.332 36.45 36.45 9.428 2.89126 4.19893 26.19 1477.60 1020.333 36.75 36.75 9.444 2.89354 4.20033 26.20 1477.68 1020.341 37.05 37.05 9.443 2.89549 4.20325 26.22 1477.71 1020.358 37.35 37.35 9.457 2.90092 4.20947 26.26 1477.82 1020.392 37.65 37.65 9.514 2.90400 4.20694 26.25 1478.02 1020.376 37.95 37.95 9.546 2.90651 4.20672 26.25 1478.15 1020.374 38.25 38.25 9.567 2.90767 4.20588 26.25 1478.22 1020.369 38.55 38.55 9.580 2.90992 4.20752 26.26 1478.29 1020.379 38.85 38.85 9.594 2.93822 4.24671 26.53 1478.68 1020.589 39.15 39.15 9.752 2.99563 4.31005 26.99 1479.82 1020.921 39.45 39.45 10.087 3.04763 4.34291 27.25 1481.38 1021.075 39.75 39.74 10.581 3.10930 4.36932 27.48 1483.47 1021.181 40.05 40.04 11.132 3.15726 4.36907 27.54 1485.52 1021.132 40.35 40.34 11.582 3.16620 4.32759 27.29 1486.82 1020.865 40.54 40.53 11.670 3.16876 4.32062 27.25 1487.09 1020.819