*2026/01/16 10:37:53.33 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/07 19:28:54.000 END TIME : UTC 2025/05/07 19:29:19.200 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 37.94 2 Depth metres 0.15 37.84 3 Temperature 'deg C (ITS90)' 9.7 15.238 4 Conductivity S/m 0.62563 3.43729 5 Conductance:Specific S/m 0.77864 4.94159 6 Salinity PSS-78 4.28 31.4 7 Speed:Sound m/s 1469.52 1488.63 8 Density kg/m^3 1002.375 1024.347 $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 : 127 LATITUDE : 49 10.76150 N ! (deg min) LONGITUDE : 124 49.24560 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250507_192854 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 127 127 MERGEHDR 1.3 2026/01/16 10:35:43 127 127 HDREDIT2 3.2 2026/01/16 10:36:14 ? ? REMOVECH 8.2 2026/01/16 10:36:40 127 127 CALIB 12.1 2026/01/16 10:37:16 127 127 CLEAN 5.3 2026/01/16 10:37:53 127 127 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:14 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 10:36:40 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:16 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 15.114 0.62780 0.78253 4.30 1471.45 1002.401 0.45 0.46 15.174 0.62563 0.77864 4.28 1471.64 1002.375 0.75 0.76 15.201 0.62774 0.78076 4.29 1471.75 1002.381 1.05 1.07 15.225 0.62867 0.78145 4.30 1471.84 1002.382 1.35 1.37 15.238 0.63076 0.78379 4.31 1471.91 1002.392 1.65 1.68 15.210 0.63242 0.78640 4.33 1471.83 1002.410 1.95 1.98 15.164 0.63357 0.78874 4.34 1471.69 1002.429 2.25 2.29 15.044 0.63515 0.79307 4.37 1471.31 1002.469 2.55 2.59 14.854 0.63856 0.80112 4.41 1470.72 1002.536 2.85 2.90 14.276 0.72249 0.91977 5.11 1469.52 1003.165 3.15 3.20 13.452 1.62747 2.11623 12.54 1475.36 1009.004 3.45 3.50 12.870 3.07497 4.05987 25.54 1488.63 1019.119 3.75 3.80 12.126 3.23618 4.35842 27.56 1488.45 1020.818 4.05 4.10 11.472 3.26752 4.47947 28.35 1487.11 1021.544 4.35 4.40 10.939 3.29220 4.58026 29.01 1486.01 1022.144 4.65 4.70 10.577 3.30744 4.64826 29.44 1485.25 1022.546 4.95 5.00 10.308 3.31693 4.69711 29.76 1484.66 1022.835 5.25 5.30 10.128 3.32749 4.73629 30.01 1484.32 1023.063 5.55 5.60 10.001 3.33645 4.76623 30.21 1484.10 1023.237 5.85 5.90 9.922 3.34801 4.79353 30.39 1484.04 1023.393 6.15 6.20 9.873 3.35621 4.81211 30.51 1484.01 1023.499 6.45 6.49 9.839 3.35969 4.82180 30.58 1483.97 1023.556 6.75 6.79 9.818 3.36293 4.82934 30.63 1483.96 1023.600 7.05 7.09 9.805 3.36471 4.83366 30.66 1483.95 1023.625 7.35 7.39 9.797 3.36925 4.84135 30.71 1483.99 1023.669 7.65 7.69 9.791 3.37477 4.85012 30.77 1484.05 1023.719 7.95 7.99 9.784 3.37638 4.85330 30.79 1484.06 1023.738 8.25 8.29 9.782 3.37706 4.85466 30.80 1484.06 1023.747 8.55 8.59 9.779 3.37806 4.85642 30.81 1484.07 1023.758 8.85 8.88 9.777 3.37895 4.85802 30.82 1484.08 1023.768 9.15 9.18 9.775 3.37936 4.85895 30.83 1484.09 1023.775 9.45 9.48 9.772 3.38118 4.86198 30.85 1484.11 1023.793 9.75 9.78 9.772 3.38205 4.86312 30.86 1484.12 1023.800 10.05 10.08 9.773 3.38445 4.86648 30.88 1484.16 1023.820 10.35 10.38 9.775 3.38959 4.87361 30.93 1484.23 1023.860 10.65 10.68 9.776 3.39184 4.87673 30.95 1484.27 1023.879 10.95 10.98 9.777 3.39168 4.87632 30.95 1484.27 1023.878 11.25 11.27 9.775 3.39248 4.87776 30.96 1484.28 1023.887 11.55 11.57 9.772 3.39276 4.87863 30.97 1484.28 1023.893 11.85 11.87 9.769 3.39381 4.88048 30.98 1484.29 1023.905 12.15 12.17 9.766 3.39467 4.88220 30.99 1484.30 1023.916 12.45 12.47 9.759 3.39688 4.88628 31.02 1484.32 1023.940 12.75 12.77 9.751 3.39868 4.89009 31.04 1484.32 1023.962 13.05 13.07 9.743 3.40015 4.89322 31.06 1484.32 1023.981 13.35 13.36 9.736 3.40134 4.89603 31.08 1484.32 1023.998 13.65 13.66 9.728 3.40136 4.89720 31.09 1484.31 1024.007 13.95 13.96 9.720 3.40312 4.90077 31.11 1484.31 1024.028 14.25 14.26 9.716 3.40408 4.90277 31.13 1484.32 1024.041 14.55 14.56 9.712 3.40497 4.90466 31.14 1484.32 1024.052 14.85 14.86 9.708 3.40571 4.90625 31.15 1484.33 1024.063 15.15 15.16 9.707 3.40683 4.90806 31.16 1484.34 1024.074 15.45 15.46 9.705 3.40761 4.90937 31.17 1484.35 1024.083 15.75 15.75 9.704 3.40720 4.90901 31.17 1484.35 1024.082 16.05 16.05 9.703 3.40838 4.91082 31.18 1484.37 1024.093 16.35 16.35 9.701 3.40901 4.91200 31.19 1484.37 1024.101 16.65 16.65 9.700 3.40880 4.91176 31.19 1484.38 1024.101 16.95 16.95 9.701 3.41012 4.91363 31.20 1484.40 1024.113 17.25 17.25 9.701 3.41129 4.91528 31.21 1484.42 1024.123 17.55 17.55 9.701 3.41110 4.91492 31.21 1484.42 1024.122 17.85 17.84 9.701 3.41211 4.91647 31.22 1484.44 1024.132 18.15 18.14 9.701 3.41228 4.91663 31.22 1484.45 1024.134 18.45 18.44 9.701 3.41269 4.91729 31.23 1484.45 1024.139 18.75 18.74 9.701 3.41208 4.91642 31.22 1484.45 1024.135 19.05 19.04 9.700 3.41249 4.91710 31.22 1484.46 1024.141 19.35 19.34 9.700 3.41269 4.91738 31.23 1484.47 1024.143 19.65 19.64 9.700 3.41293 4.91779 31.23 1484.47 1024.147 19.95 19.93 9.700 3.41278 4.91755 31.23 1484.48 1024.147 20.25 20.23 9.701 3.41228 4.91671 31.22 1484.48 1024.143 20.55 20.53 9.701 3.41402 4.91918 31.24 1484.50 1024.158 20.85 20.83 9.700 3.41431 4.91975 31.24 1484.51 1024.163 21.15 21.13 9.700 3.41539 4.92124 31.25 1484.53 1024.172 21.45 21.43 9.701 3.41728 4.92389 31.27 1484.56 1024.188 21.75 21.73 9.705 3.41827 4.92477 31.28 1484.59 1024.194 22.05 22.02 9.708 3.41901 4.92534 31.28 1484.61 1024.198 22.35 22.32 9.709 3.41982 4.92637 31.29 1484.63 1024.205 22.65 22.62 9.709 3.41922 4.92562 31.28 1484.62 1024.202 22.95 22.92 9.708 3.41931 4.92586 31.28 1484.62 1024.205 23.25 23.22 9.708 3.41941 4.92593 31.29 1484.63 1024.206 23.55 23.52 9.710 3.42013 4.92673 31.29 1484.65 1024.212 23.85 23.82 9.712 3.42030 4.92668 31.29 1484.66 1024.213 24.15 24.12 9.714 3.42145 4.92807 31.30 1484.69 1024.222 24.45 24.41 9.714 3.42212 4.92898 31.31 1484.70 1024.228 24.75 24.71 9.716 3.42231 4.92905 31.31 1484.71 1024.229 25.05 25.01 9.716 3.42287 4.92976 31.31 1484.72 1024.234 25.35 25.31 9.717 3.42362 4.93078 31.32 1484.74 1024.241 25.65 25.61 9.716 3.42316 4.93021 31.32 1484.74 1024.240 25.95 25.91 9.716 3.42393 4.93127 31.32 1484.75 1024.247 26.25 26.21 9.716 3.42388 4.93127 31.32 1484.76 1024.248 26.55 26.50 9.717 3.42505 4.93286 31.33 1484.78 1024.258 26.85 26.80 9.717 3.42438 4.93181 31.33 1484.77 1024.253 27.15 27.10 9.718 3.42411 4.93136 31.32 1484.78 1024.252 27.45 27.40 9.720 3.42427 4.93132 31.32 1484.79 1024.253 27.75 27.70 9.721 3.42465 4.93162 31.33 1484.80 1024.256 28.05 28.00 9.724 3.42502 4.93173 31.33 1484.82 1024.257 28.35 28.30 9.717 3.42481 4.93253 31.33 1484.80 1024.264 28.65 28.59 9.717 3.42462 4.93220 31.33 1484.80 1024.263 28.95 28.89 9.716 3.42490 4.93268 31.33 1484.81 1024.267 29.25 29.19 9.717 3.42446 4.93194 31.33 1484.81 1024.264 29.55 29.49 9.718 3.42512 4.93277 31.33 1484.83 1024.270 29.85 29.79 9.719 3.42532 4.93289 31.33 1484.84 1024.272 30.15 30.09 9.720 3.42567 4.93329 31.34 1484.85 1024.275 30.45 30.39 9.720 3.42521 4.93256 31.33 1484.85 1024.272 30.75 30.68 9.721 3.42534 4.93262 31.33 1484.86 1024.274 31.05 30.98 9.722 3.42596 4.93343 31.34 1484.87 1024.280 31.35 31.28 9.722 3.42554 4.93279 31.33 1484.87 1024.277 31.65 31.58 9.722 3.42588 4.93326 31.34 1484.88 1024.281 31.95 31.88 9.723 3.42601 4.93328 31.34 1484.89 1024.283 32.25 32.18 9.725 3.42583 4.93286 31.33 1484.90 1024.281 32.55 32.48 9.725 3.42623 4.93330 31.34 1484.91 1024.285 32.85 32.77 9.727 3.42706 4.93426 31.34 1484.93 1024.292 33.15 33.07 9.730 3.42747 4.93444 31.34 1484.95 1024.294 33.45 33.37 9.734 3.42888 4.93597 31.36 1484.98 1024.303 33.75 33.67 9.737 3.42892 4.93560 31.35 1484.99 1024.302 34.05 33.97 9.740 3.42964 4.93609 31.36 1485.01 1024.306 34.35 34.27 9.746 3.43140 4.93788 31.37 1485.05 1024.317 34.65 34.57 9.749 3.43186 4.93801 31.37 1485.07 1024.318 34.95 34.86 9.753 3.43187 4.93757 31.37 1485.09 1024.317 35.25 35.16 9.754 3.43290 4.93880 31.38 1485.11 1024.325 35.55 35.46 9.757 3.43464 4.94098 31.39 1485.14 1024.338 35.85 35.76 9.760 3.43350 4.93884 31.38 1485.14 1024.327 36.15 36.06 9.762 3.43380 4.93905 31.38 1485.15 1024.330 36.45 36.36 9.763 3.43564 4.94155 31.40 1485.18 1024.345 36.75 36.66 9.766 3.43521 4.94050 31.39 1485.19 1024.340 37.05 36.95 9.770 3.43640 4.94159 31.40 1485.22 1024.347 37.35 37.25 9.772 3.43609 4.94081 31.39 1485.23 1024.344 37.65 37.55 9.775 3.43622 4.94065 31.39 1485.24 1024.344 37.94 37.84 9.791 3.43729 4.93989 31.39 1485.30 1024.340