*2026/01/16 10:37:57.48 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 20:13:45.000 END TIME : UTC 2025/06/26 20:14:10.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 127 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.92 2 Depth metres 0.15 37.74 3 Temperature 'deg C (ITS90)' 8.85 15.412 4 Conductivity S/m 3.42756 3.64129 5 Conductance:Specific S/m 4.34654 5.06406 6 Salinity PSS-78 27.71 32.13 7 Speed:Sound m/s 1482.73 1499.55 8 Density kg/m^3 1020.278 1025.07 $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 : 208 LATITUDE : 48 56.25070 N ! (deg min) LONGITUDE : 125 6.14890 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_201345 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 127 127 MERGEHDR 1.3 2026/01/16 10:35:47 127 127 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:50 127 127 CALIB 12.1 2026/01/16 10:37:21 127 127 CLEAN 5.3 2026/01/16 10:37:57 127 127 $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 10:37:21 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 15.412 3.51304 4.34654 27.71 1499.53 1020.278 0.45 0.45 15.212 3.54675 4.41010 28.15 1499.40 1020.658 0.75 0.75 15.043 3.59962 4.49472 28.74 1499.55 1021.148 1.05 1.05 14.760 3.63095 4.56606 29.23 1499.21 1021.583 1.35 1.35 14.458 3.63974 4.61218 29.54 1498.59 1021.883 1.65 1.65 14.270 3.63984 4.63437 29.68 1498.15 1022.034 1.95 1.95 13.972 3.64129 4.67163 29.92 1497.46 1022.283 2.25 2.25 13.520 3.61010 4.68602 29.99 1496.05 1022.426 2.55 2.54 13.190 3.58945 4.69951 30.06 1495.03 1022.544 2.85 2.84 12.994 3.57082 4.69915 30.04 1494.35 1022.568 3.15 3.14 12.473 3.55437 4.74261 30.30 1492.89 1022.871 3.45 3.44 11.932 3.54536 4.79987 30.66 1491.46 1023.246 3.75 3.74 11.551 3.53265 4.83252 30.85 1490.37 1023.466 4.05 4.04 11.282 3.52248 4.85433 30.97 1489.58 1023.613 4.35 4.34 11.110 3.51555 4.86789 31.05 1489.07 1023.704 4.65 4.64 10.972 3.50207 4.86784 31.04 1488.57 1023.717 4.95 4.94 10.840 3.49152 4.87095 31.04 1488.12 1023.746 5.25 5.23 10.705 3.48879 4.88556 31.13 1487.75 1023.839 5.55 5.53 10.539 3.48866 4.90815 31.27 1487.33 1023.978 5.85 5.83 10.427 3.48718 4.92160 31.35 1487.03 1024.061 6.15 6.13 10.342 3.47489 4.91613 31.30 1486.67 1024.039 6.45 6.43 10.242 3.47144 4.92509 31.35 1486.38 1024.096 6.75 6.73 10.159 3.46350 4.92546 31.35 1486.07 1024.105 7.05 7.03 10.118 3.45853 4.92423 31.33 1485.91 1024.103 7.35 7.32 10.088 3.45466 4.92287 31.32 1485.79 1024.099 7.65 7.62 10.030 3.45138 4.92634 31.34 1485.61 1024.123 7.95 7.92 9.975 3.45086 4.93328 31.38 1485.47 1024.166 8.25 8.22 9.926 3.44995 4.93898 31.41 1485.33 1024.202 8.55 8.52 9.881 3.44748 4.94180 31.43 1485.19 1024.221 8.85 8.82 9.862 3.44384 4.93926 31.41 1485.10 1024.210 9.15 9.12 9.848 3.44312 4.94013 31.41 1485.06 1024.217 9.45 9.41 9.833 3.45109 4.95371 31.50 1485.13 1024.293 9.75 9.71 9.822 3.45228 4.95703 31.53 1485.12 1024.314 10.05 10.01 9.817 3.45241 4.95800 31.53 1485.11 1024.321 10.35 10.31 9.810 3.45086 4.95668 31.52 1485.08 1024.315 10.65 10.61 9.800 3.45093 4.95826 31.53 1485.06 1024.326 10.95 10.91 9.788 3.45060 4.95948 31.54 1485.03 1024.334 11.25 11.21 9.785 3.44999 4.95898 31.53 1485.02 1024.333 11.55 11.50 9.783 3.45050 4.96008 31.54 1485.02 1024.340 11.85 11.80 9.778 3.44841 4.95771 31.52 1484.99 1024.329 12.15 12.10 9.771 3.44928 4.95995 31.54 1484.99 1024.343 12.45 12.40 9.764 3.44877 4.96028 31.54 1484.97 1024.346 12.75 12.70 9.757 3.44905 4.96168 31.55 1484.96 1024.356 13.05 13.00 9.748 3.44839 4.96197 31.55 1484.93 1024.359 13.35 13.30 9.735 3.44828 4.96373 31.56 1484.90 1024.371 13.65 13.59 9.721 3.44594 4.96228 31.55 1484.84 1024.365 13.95 13.89 9.707 3.44629 4.96489 31.56 1484.81 1024.382 14.25 14.19 9.682 3.44483 4.96634 31.57 1484.74 1024.392 14.55 14.49 9.653 3.44379 4.96895 31.59 1484.65 1024.409 14.85 14.79 9.624 3.44271 4.97154 31.60 1484.57 1024.427 15.15 15.09 9.603 3.44230 4.97400 31.61 1484.51 1024.443 15.45 15.39 9.581 3.44059 4.97468 31.62 1484.44 1024.449 15.75 15.68 9.566 3.44032 4.97652 31.63 1484.40 1024.461 16.05 15.98 9.551 3.43990 4.97797 31.63 1484.36 1024.471 16.35 16.28 9.541 3.43936 4.97868 31.64 1484.34 1024.477 16.65 16.58 9.528 3.43959 4.98080 31.65 1484.31 1024.490 16.95 16.88 9.519 3.43929 4.98169 31.66 1484.29 1024.497 17.25 17.18 9.510 3.43931 4.98310 31.66 1484.27 1024.507 17.55 17.48 9.502 3.43962 4.98464 31.67 1484.26 1024.517 17.85 17.77 9.498 3.43928 4.98476 31.67 1484.25 1024.519 18.15 18.07 9.493 3.43993 4.98642 31.69 1484.25 1024.530 18.45 18.37 9.488 3.43936 4.98626 31.68 1484.23 1024.530 18.75 18.67 9.485 3.43908 4.98629 31.68 1484.23 1024.532 19.05 18.97 9.483 3.43903 4.98655 31.68 1484.23 1024.535 19.35 19.27 9.477 3.43894 4.98731 31.69 1484.21 1024.541 19.65 19.56 9.469 3.43862 4.98794 31.69 1484.19 1024.546 19.95 19.86 9.456 3.43941 4.99096 31.71 1484.17 1024.564 20.25 20.16 9.442 3.43819 4.99126 31.71 1484.13 1024.568 20.55 20.46 9.433 3.43730 4.99129 31.71 1484.10 1024.570 20.85 20.76 9.424 3.43780 4.99336 31.72 1484.08 1024.583 21.15 21.06 9.410 3.43659 4.99355 31.72 1484.04 1024.586 21.45 21.36 9.396 3.43612 4.99488 31.73 1484.00 1024.595 21.75 21.65 9.383 3.43651 4.99734 31.75 1483.98 1024.611 22.05 21.95 9.373 3.43591 4.99804 31.75 1483.95 1024.616 22.35 22.25 9.369 3.43549 4.99798 31.75 1483.94 1024.618 22.65 22.55 9.353 3.43544 5.00017 31.76 1483.90 1024.632 22.95 22.85 9.342 3.43511 5.00136 31.77 1483.87 1024.640 23.25 23.15 9.336 3.43521 5.00234 31.77 1483.86 1024.647 23.55 23.45 9.333 3.43476 5.00217 31.77 1483.85 1024.647 23.85 23.74 9.327 3.43477 5.00304 31.78 1483.84 1024.654 24.15 24.04 9.318 3.43427 5.00365 31.78 1483.82 1024.659 24.45 24.34 9.313 3.43451 5.00468 31.79 1483.81 1024.666 24.75 24.64 9.312 3.43429 5.00456 31.79 1483.81 1024.667 25.05 24.94 9.309 3.43470 5.00559 31.79 1483.81 1024.674 25.35 25.24 9.306 3.43390 5.00479 31.79 1483.80 1024.671 25.65 25.53 9.297 3.43332 5.00532 31.79 1483.77 1024.675 25.95 25.83 9.289 3.43362 5.00684 31.80 1483.76 1024.685 26.25 26.13 9.281 3.43425 5.00891 31.81 1483.76 1024.698 26.55 26.43 9.275 3.43314 5.00828 31.81 1483.73 1024.697 26.85 26.73 9.269 3.43295 5.00877 31.81 1483.72 1024.701 27.15 27.03 9.264 3.43345 5.01029 31.82 1483.72 1024.711 27.45 27.32 9.257 3.43261 5.01011 31.82 1483.69 1024.711 27.75 27.62 9.248 3.43273 5.01151 31.82 1483.68 1024.721 28.05 27.92 9.238 3.43204 5.01200 31.83 1483.64 1024.725 28.35 28.22 9.233 3.43171 5.01231 31.83 1483.63 1024.728 28.65 28.52 9.226 3.43198 5.01378 31.84 1483.62 1024.738 28.95 28.82 9.215 3.43158 5.01470 31.84 1483.59 1024.745 29.25 29.12 9.203 3.43163 5.01657 31.85 1483.57 1024.757 29.55 29.41 9.196 3.43094 5.01653 31.85 1483.55 1024.758 29.85 29.71 9.189 3.43091 5.01763 31.86 1483.53 1024.766 30.15 30.01 9.178 3.43096 5.01931 31.87 1483.51 1024.777 30.45 30.31 9.168 3.43083 5.02050 31.88 1483.49 1024.785 30.75 30.61 9.158 3.43020 5.02106 31.88 1483.46 1024.790 31.05 30.91 9.147 3.43008 5.02251 31.89 1483.43 1024.800 31.35 31.20 9.134 3.42893 5.02276 31.89 1483.39 1024.803 31.65 31.50 9.116 3.43047 5.02765 31.92 1483.36 1024.832 31.95 31.80 9.095 3.42956 5.02941 31.93 1483.30 1024.844 32.25 32.10 9.079 3.42920 5.03129 31.94 1483.26 1024.856 32.55 32.40 9.047 3.42936 5.03621 31.97 1483.18 1024.886 32.85 32.70 9.005 3.42888 5.04170 32.00 1483.07 1024.919 33.15 33.00 8.973 3.42883 5.04645 32.03 1482.99 1024.948 33.45 33.29 8.936 3.42832 5.05112 32.06 1482.90 1024.977 33.75 33.59 8.908 3.42828 5.05520 32.08 1482.83 1025.001 34.05 33.89 8.905 3.42821 5.05568 32.08 1482.82 1025.005 34.35 34.19 8.906 3.42850 5.05583 32.08 1482.84 1025.007 34.65 34.49 8.900 3.42820 5.05631 32.09 1482.82 1025.012 34.95 34.79 8.891 3.42799 5.05731 32.09 1482.80 1025.019 35.25 35.08 8.890 3.42851 5.05831 32.10 1482.81 1025.026 35.55 35.38 8.884 3.42822 5.05875 32.10 1482.79 1025.029 35.85 35.68 8.875 3.42790 5.05961 32.11 1482.77 1025.036 36.15 35.98 8.867 3.42807 5.06103 32.11 1482.76 1025.045 36.45 36.28 8.862 3.42810 5.06180 32.12 1482.75 1025.051 36.75 36.58 8.859 3.42795 5.06204 32.12 1482.74 1025.054 37.05 36.87 8.857 3.42840 5.06311 32.13 1482.75 1025.061 37.35 37.17 8.853 3.42756 5.06236 32.12 1482.73 1025.058 37.65 37.47 8.851 3.42784 5.06318 32.13 1482.73 1025.064 37.92 37.74 8.850 3.42833 5.06406 32.13 1482.74 1025.070