*2026/01/16 10:37:45.10 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 00:45:16.000 END TIME : UTC 2025/01/23 00:45:37.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 110 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 32.86 2 Depth metres 0.15 32.72 3 Temperature 'deg C (ITS90)' 9.097 10.312 4 Conductivity S/m 3.1651 3.49665 5 Conductance:Specific S/m 4.63902 4.95661 6 Salinity PSS-78 29.21 31.57 7 Speed:Sound m/s 1479.49 1487.18 8 Density kg/m^3 1022.571 1024.379 $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 : 24 LATITUDE : 48 52.98630 N ! (deg min) LONGITUDE : 125 7.25730 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_004516 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 110 110 MERGEHDR 1.3 2026/01/16 10:35:38 110 110 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 110 110 CALIB 12.1 2026/01/16 10:37:10 110 110 CLEAN 5.3 2026/01/16 10:37:45 110 110 $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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:10 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 9.116 3.16528 4.63902 29.21 1479.53 1022.571 0.45 0.45 9.104 3.16510 4.64037 29.22 1479.50 1022.580 0.75 0.75 9.097 3.16512 4.64132 29.22 1479.49 1022.587 1.05 1.05 9.101 3.16602 4.64218 29.23 1479.51 1022.593 1.35 1.35 9.111 3.16582 4.64046 29.22 1479.54 1022.584 1.65 1.64 9.151 3.16878 4.63936 29.21 1479.69 1022.578 1.95 1.94 9.161 3.17974 4.65400 29.32 1479.86 1022.658 2.25 2.24 9.172 3.17376 4.64381 29.25 1479.82 1022.603 2.55 2.54 9.200 3.17756 4.64561 29.26 1479.95 1022.613 2.85 2.84 9.222 3.18383 4.65173 29.31 1480.09 1022.646 3.15 3.14 9.267 3.19049 4.65529 29.34 1480.30 1022.665 3.45 3.44 9.322 3.21176 4.67888 29.51 1480.72 1022.792 3.75 3.74 9.376 3.23355 4.70320 29.69 1481.14 1022.923 4.05 4.04 9.451 3.24761 4.71333 29.77 1481.52 1022.975 4.35 4.34 9.504 3.25378 4.71504 29.79 1481.75 1022.983 4.65 4.64 9.528 3.25509 4.71369 29.78 1481.83 1022.975 4.95 4.93 9.545 3.25645 4.71338 29.78 1481.90 1022.974 5.25 5.23 9.561 3.26063 4.71715 29.81 1482.00 1022.995 5.55 5.53 9.569 3.26205 4.71813 29.82 1482.04 1023.001 5.85 5.83 9.580 3.26337 4.71864 29.82 1482.09 1023.004 6.15 6.13 9.596 3.26594 4.72004 29.83 1482.17 1023.012 6.45 6.43 9.618 3.27111 4.72455 29.87 1482.30 1023.037 6.75 6.73 9.736 3.30680 4.75991 30.13 1483.05 1023.224 7.05 7.03 9.823 3.37259 4.84248 30.72 1484.10 1023.673 7.35 7.33 9.877 3.39923 4.87310 30.94 1484.57 1023.839 7.65 7.62 10.000 3.41217 4.87450 30.97 1485.05 1023.840 7.95 7.92 10.060 3.41487 4.86999 30.94 1485.25 1023.812 8.25 8.22 10.094 3.41631 4.86733 30.93 1485.36 1023.796 8.55 8.52 10.113 3.41774 4.86671 30.93 1485.43 1023.793 8.85 8.82 10.114 3.41652 4.86485 30.91 1485.42 1023.784 9.15 9.12 10.113 3.41619 4.86458 30.91 1485.42 1023.784 9.45 9.42 10.102 3.41586 4.86557 30.92 1485.39 1023.791 9.75 9.71 10.101 3.41664 4.86689 30.92 1485.40 1023.800 10.05 10.01 10.092 3.41790 4.86987 30.94 1485.40 1023.818 10.35 10.31 10.051 3.41624 4.87330 30.96 1485.28 1023.841 10.65 10.61 10.031 3.41254 4.87078 30.94 1485.18 1023.830 10.95 10.91 10.011 3.40533 4.86322 30.89 1485.05 1023.791 11.25 11.21 9.991 3.40290 4.86256 30.88 1484.97 1023.790 11.55 11.51 10.005 3.40376 4.86180 30.88 1485.02 1023.786 11.85 11.81 10.029 3.40827 4.86498 30.90 1485.15 1023.803 12.15 12.10 10.055 3.42126 4.87979 31.01 1485.38 1023.884 12.45 12.40 10.079 3.43395 4.89459 31.12 1485.60 1023.965 12.75 12.70 10.108 3.43951 4.89845 31.15 1485.75 1023.986 13.05 13.00 10.158 3.44083 4.89342 31.12 1485.89 1023.956 13.35 13.30 10.200 3.44444 4.89271 31.12 1486.05 1023.950 13.65 13.60 10.203 3.44676 4.89555 31.14 1486.09 1023.967 13.95 13.90 10.195 3.44962 4.90069 31.17 1486.11 1023.997 14.25 14.20 10.197 3.44763 4.89760 31.15 1486.10 1023.981 14.55 14.49 10.191 3.44382 4.89306 31.12 1486.04 1023.958 14.85 14.79 10.179 3.44291 4.89346 31.12 1486.00 1023.962 15.15 15.09 10.165 3.44138 4.89312 31.12 1485.95 1023.963 15.45 15.39 10.148 3.44051 4.89434 31.12 1485.90 1023.972 15.75 15.69 10.142 3.44109 4.89600 31.13 1485.90 1023.983 16.05 15.99 10.155 3.44311 4.89705 31.14 1485.96 1023.989 16.35 16.29 10.173 3.44586 4.89847 31.15 1486.05 1023.997 16.65 16.58 10.209 3.44966 4.89883 31.16 1486.19 1023.997 16.95 16.88 10.238 3.45868 4.90755 31.23 1486.38 1024.044 17.25 17.18 10.255 3.46099 4.90854 31.23 1486.46 1024.050 17.55 17.48 10.266 3.46052 4.90634 31.22 1486.48 1024.038 17.85 17.78 10.266 3.45726 4.90166 31.19 1486.45 1024.014 18.15 18.08 10.266 3.45867 4.90368 31.20 1486.47 1024.026 18.45 18.38 10.283 3.45850 4.90103 31.18 1486.52 1024.012 18.75 18.68 10.290 3.46280 4.90622 31.22 1486.59 1024.041 19.05 18.97 10.291 3.46517 4.90947 31.24 1486.63 1024.060 19.35 19.27 10.295 3.46954 4.91503 31.28 1486.70 1024.092 19.65 19.57 10.306 3.47139 4.91612 31.29 1486.75 1024.098 19.95 19.87 10.312 3.47105 4.91489 31.29 1486.77 1024.092 20.25 20.17 10.303 3.47069 4.91562 31.29 1486.74 1024.098 20.55 20.47 10.287 3.46752 4.91329 31.27 1486.67 1024.088 20.85 20.77 10.278 3.46594 4.91229 31.26 1486.63 1024.084 21.15 21.06 10.267 3.46565 4.91345 31.27 1486.61 1024.093 21.45 21.36 10.258 3.46648 4.91589 31.28 1486.60 1024.108 21.75 21.66 10.251 3.46778 4.91867 31.30 1486.60 1024.125 22.05 21.96 10.245 3.46892 4.92110 31.32 1486.60 1024.140 22.35 22.26 10.244 3.46843 4.92056 31.32 1486.60 1024.138 22.65 22.56 10.248 3.46879 4.92054 31.32 1486.62 1024.139 22.95 22.86 10.249 3.46958 4.92159 31.32 1486.63 1024.146 23.25 23.15 10.247 3.47015 4.92260 31.33 1486.64 1024.153 23.55 23.45 10.250 3.47196 4.92474 31.35 1486.68 1024.166 23.85 23.75 10.256 3.47381 4.92661 31.36 1486.72 1024.177 24.15 24.05 10.258 3.47538 4.92844 31.37 1486.75 1024.188 24.45 24.35 10.263 3.47723 4.93047 31.39 1486.79 1024.201 24.75 24.65 10.262 3.47829 4.93212 31.40 1486.80 1024.211 25.05 24.95 10.271 3.47982 4.93301 31.41 1486.85 1024.216 25.35 25.24 10.278 3.47967 4.93176 31.40 1486.87 1024.210 25.65 25.54 10.278 3.48122 4.93394 31.41 1486.90 1024.224 25.95 25.84 10.279 3.48189 4.93483 31.42 1486.91 1024.230 26.25 26.14 10.281 3.48277 4.93569 31.43 1486.93 1024.235 26.55 26.44 10.285 3.48396 4.93695 31.43 1486.96 1024.244 26.85 26.74 10.284 3.48540 4.93904 31.45 1486.98 1024.256 27.15 27.04 10.287 3.48646 4.94021 31.46 1487.00 1024.264 27.45 27.33 10.290 3.48727 4.94087 31.46 1487.03 1024.268 27.75 27.63 10.292 3.48718 4.94049 31.46 1487.04 1024.268 28.05 27.93 10.292 3.48806 4.94174 31.47 1487.05 1024.276 28.35 28.23 10.292 3.48887 4.94291 31.48 1487.07 1024.283 28.65 28.53 10.293 3.48990 4.94425 31.49 1487.08 1024.292 28.95 28.83 10.292 3.48998 4.94447 31.49 1487.09 1024.295 29.25 29.13 10.293 3.49019 4.94455 31.49 1487.10 1024.296 29.55 29.42 10.292 3.49008 4.94464 31.49 1487.10 1024.298 29.85 29.72 10.290 3.49067 4.94563 31.50 1487.11 1024.305 30.15 30.02 10.289 3.49121 4.94656 31.50 1487.12 1024.311 30.45 30.32 10.282 3.49068 4.94683 31.50 1487.10 1024.315 30.75 30.62 10.282 3.49222 4.94895 31.52 1487.12 1024.327 31.05 30.92 10.283 3.49324 4.95025 31.53 1487.14 1024.336 31.35 31.22 10.282 3.49387 4.95136 31.53 1487.15 1024.343 31.65 31.51 10.280 3.49452 4.95249 31.54 1487.16 1024.351 31.95 31.81 10.279 3.49524 4.95366 31.55 1487.17 1024.359 32.25 32.11 10.277 3.49520 4.95390 31.55 1487.17 1024.361 32.55 32.41 10.276 3.49594 4.95508 31.56 1487.18 1024.369 32.86 32.72 10.273 3.49665 4.95661 31.57 1487.18 1024.379