*2026/01/16 10:37:44.68 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/22 22:54:15.000 END TIME : UTC 2025/01/22 22:54:42.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 139 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.67 2 Depth metres 0.15 41.49 3 Temperature 'deg C (ITS90)' 8.283 10.355 4 Conductivity S/m 2.96472 3.51471 5 Conductance:Specific S/m 4.44887 4.97103 6 Salinity PSS-78 27.79 31.68 7 Speed:Sound m/s 1474.72 1487.74 8 Density kg/m^3 1021.577 1024.488 $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 : 21 LATITUDE : 48 57.89150 N ! (deg min) LONGITUDE : 125 3.33140 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250122_225415 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 139 139 MERGEHDR 1.3 2026/01/16 10:35:38 139 139 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 139 139 CALIB 12.1 2026/01/16 10:37:10 139 139 CLEAN 5.3 2026/01/16 10:37:44 139 139 $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 8.336 2.97076 4.45574 27.84 1474.90 1021.610 0.45 0.45 8.283 2.96780 4.45843 27.85 1474.72 1021.628 0.75 0.75 8.320 2.96472 4.44887 27.79 1474.79 1021.577 1.05 1.05 8.371 2.97463 4.45688 27.85 1475.07 1021.619 1.35 1.35 8.415 2.98710 4.46970 27.94 1475.36 1021.688 1.65 1.65 8.483 2.99426 4.47128 27.96 1475.64 1021.696 1.95 1.95 8.584 3.01059 4.48212 28.05 1476.14 1021.752 2.25 2.24 8.683 3.05556 4.53577 28.44 1476.99 1022.039 2.55 2.54 8.806 3.08075 4.55652 28.59 1477.66 1022.148 2.85 2.84 8.935 3.09980 4.56726 28.69 1478.26 1022.201 3.15 3.14 9.092 3.12633 4.58510 28.83 1479.03 1022.292 3.45 3.44 9.207 3.17257 4.63737 29.21 1479.92 1022.572 3.75 3.74 9.304 3.18045 4.63574 29.21 1480.29 1022.559 4.05 4.04 9.381 3.18735 4.63528 29.21 1480.59 1022.553 4.35 4.34 9.470 3.20147 4.64387 29.29 1481.01 1022.597 4.65 4.64 9.548 3.21286 4.64981 29.34 1481.36 1022.626 4.95 4.94 9.644 3.23430 4.66787 29.47 1481.89 1022.720 5.25 5.24 9.828 3.27889 4.70732 29.77 1482.93 1022.925 5.55 5.53 9.916 3.30978 4.73967 30.01 1483.55 1023.097 5.85 5.83 9.996 3.34250 4.77551 30.27 1484.16 1023.289 6.15 6.13 10.063 3.36515 4.79873 30.44 1484.62 1023.413 6.45 6.43 10.109 3.38300 4.81780 30.58 1484.96 1023.516 6.75 6.73 10.138 3.39451 4.83023 30.67 1485.18 1023.583 7.05 7.03 10.166 3.40035 4.83474 30.71 1485.33 1023.608 7.35 7.33 10.180 3.40226 4.83545 30.71 1485.39 1023.612 7.65 7.63 10.191 3.40665 4.84017 30.75 1485.48 1023.638 7.95 7.93 10.196 3.41231 4.84760 30.80 1485.57 1023.680 8.25 8.22 10.195 3.41590 4.85277 30.84 1485.61 1023.710 8.55 8.52 10.186 3.41712 4.85579 30.86 1485.61 1023.728 8.85 8.82 10.168 3.41435 4.85435 30.84 1485.53 1023.723 9.15 9.12 10.151 3.41309 4.85492 30.85 1485.48 1023.728 9.45 9.42 10.145 3.40971 4.85091 30.82 1485.43 1023.708 9.75 9.72 10.154 3.40893 4.84857 30.80 1485.44 1023.696 10.05 10.02 10.166 3.41441 4.85470 30.85 1485.55 1023.730 10.35 10.32 10.171 3.42199 4.86485 30.92 1485.66 1023.786 10.65 10.61 10.180 3.42603 4.86923 30.95 1485.73 1023.811 10.95 10.91 10.194 3.42668 4.86823 30.95 1485.78 1023.806 11.25 11.21 10.203 3.42652 4.86676 30.94 1485.81 1023.799 11.55 11.51 10.200 3.42581 4.86618 30.93 1485.80 1023.797 11.85 11.81 10.196 3.42486 4.86543 30.93 1485.78 1023.794 12.15 12.11 10.179 3.42277 4.86478 30.92 1485.72 1023.793 12.45 12.41 10.162 3.42054 4.86393 30.91 1485.65 1023.791 12.75 12.70 10.162 3.42293 4.86735 30.93 1485.68 1023.811 13.05 13.00 10.158 3.42397 4.86942 30.95 1485.69 1023.824 13.35 13.30 10.148 3.42101 4.86660 30.93 1485.63 1023.810 13.65 13.60 10.139 3.42103 4.86788 30.93 1485.61 1023.819 13.95 13.90 10.131 3.42184 4.87016 30.95 1485.61 1023.834 14.25 14.20 10.121 3.42021 4.86921 30.94 1485.57 1023.830 14.55 14.50 10.127 3.42074 4.86907 30.94 1485.60 1023.830 14.85 14.80 10.139 3.42491 4.87340 30.97 1485.68 1023.855 15.15 15.09 10.144 3.42623 4.87462 30.98 1485.71 1023.862 15.45 15.39 10.148 3.42801 4.87656 31.00 1485.75 1023.874 15.75 15.69 10.150 3.43027 4.87946 31.02 1485.79 1023.891 16.05 15.99 10.159 3.43248 4.88132 31.03 1485.84 1023.902 16.35 16.29 10.165 3.43599 4.88552 31.06 1485.91 1023.926 16.65 16.59 10.154 3.43706 4.88863 31.08 1485.90 1023.945 16.95 16.89 10.137 3.43515 4.88824 31.08 1485.83 1023.945 17.25 17.19 10.103 3.43302 4.88991 31.08 1485.73 1023.958 17.55 17.48 10.081 3.42790 4.88563 31.05 1485.61 1023.937 17.85 17.78 10.067 3.42523 4.88377 31.04 1485.55 1023.929 18.15 18.08 10.045 3.42632 4.88851 31.07 1485.51 1023.958 18.45 18.38 10.035 3.42856 4.89307 31.10 1485.51 1023.985 18.75 18.68 10.040 3.43075 4.89544 31.11 1485.56 1023.999 19.05 18.98 10.050 3.43286 4.89707 31.13 1485.62 1024.009 19.35 19.28 10.056 3.43589 4.90050 31.15 1485.67 1024.028 19.65 19.57 10.075 3.43690 4.89939 31.15 1485.74 1024.022 19.95 19.87 10.096 3.44017 4.90109 31.16 1485.84 1024.031 20.25 20.17 10.110 3.44246 4.90233 31.17 1485.91 1024.038 20.55 20.47 10.119 3.44471 4.90433 31.19 1485.96 1024.050 20.85 20.77 10.126 3.44679 4.90639 31.20 1486.01 1024.062 21.15 21.07 10.134 3.44737 4.90610 31.20 1486.04 1024.061 21.45 21.37 10.141 3.44615 4.90338 31.18 1486.05 1024.047 21.75 21.66 10.152 3.44552 4.90090 31.17 1486.08 1024.034 22.05 21.96 10.169 3.44854 4.90284 31.18 1486.16 1024.045 22.35 22.26 10.176 3.45095 4.90520 31.20 1486.21 1024.059 22.65 22.56 10.196 3.45751 4.91178 31.25 1486.35 1024.095 22.95 22.86 10.214 3.46205 4.91576 31.28 1486.45 1024.117 23.25 23.16 10.228 3.46497 4.91786 31.29 1486.53 1024.128 23.55 23.46 10.246 3.46938 4.92166 31.32 1486.64 1024.149 23.85 23.76 10.260 3.47078 4.92170 31.33 1486.69 1024.150 24.15 24.05 10.266 3.47107 4.92120 31.32 1486.72 1024.148 24.45 24.35 10.271 3.47092 4.92037 31.32 1486.73 1024.144 24.75 24.65 10.271 3.47152 4.92124 31.32 1486.74 1024.150 25.05 24.95 10.272 3.47124 4.92074 31.32 1486.75 1024.149 25.35 25.25 10.276 3.47244 4.92186 31.33 1486.78 1024.156 25.65 25.55 10.277 3.47268 4.92197 31.33 1486.79 1024.158 25.95 25.85 10.277 3.47342 4.92313 31.34 1486.80 1024.166 26.25 26.14 10.278 3.47371 4.92335 31.34 1486.81 1024.168 26.55 26.44 10.278 3.47619 4.92679 31.36 1486.85 1024.188 26.85 26.74 10.280 3.47735 4.92824 31.37 1486.87 1024.197 27.15 27.04 10.282 3.48025 4.93209 31.40 1486.92 1024.219 27.45 27.34 10.284 3.48115 4.93299 31.41 1486.94 1024.225 27.75 27.64 10.286 3.48163 4.93344 31.41 1486.95 1024.229 28.05 27.94 10.287 3.48219 4.93404 31.41 1486.97 1024.234 28.35 28.23 10.288 3.48221 4.93405 31.41 1486.97 1024.235 28.65 28.53 10.287 3.48289 4.93507 31.42 1486.99 1024.242 28.95 28.83 10.288 3.48262 4.93457 31.42 1486.99 1024.240 29.25 29.13 10.290 3.48327 4.93525 31.42 1487.01 1024.245 29.55 29.43 10.290 3.48340 4.93543 31.42 1487.01 1024.247 29.85 29.73 10.291 3.48403 4.93620 31.43 1487.03 1024.253 30.15 30.03 10.291 3.48402 4.93608 31.43 1487.03 1024.253 30.45 30.32 10.293 3.48495 4.93713 31.44 1487.06 1024.260 30.75 30.62 10.294 3.48529 4.93753 31.44 1487.07 1024.264 31.05 30.92 10.294 3.48578 4.93819 31.44 1487.08 1024.269 31.35 31.22 10.290 3.48616 4.93935 31.45 1487.08 1024.276 31.65 31.52 10.292 3.48624 4.93915 31.45 1487.09 1024.277 31.95 31.82 10.291 3.48710 4.94044 31.46 1487.10 1024.285 32.25 32.12 10.295 3.48807 4.94135 31.46 1487.13 1024.291 32.55 32.41 10.297 3.48938 4.94283 31.48 1487.15 1024.300 32.85 32.71 10.298 3.49006 4.94369 31.48 1487.17 1024.306 33.15 33.01 10.301 3.49090 4.94452 31.49 1487.19 1024.312 33.45 33.31 10.303 3.49524 4.95036 31.53 1487.25 1024.345 33.75 33.61 10.308 3.49644 4.95135 31.54 1487.28 1024.351 34.05 33.91 10.311 3.49769 4.95267 31.55 1487.31 1024.360 34.35 34.21 10.314 3.49804 4.95275 31.55 1487.33 1024.361 34.65 34.50 10.315 3.49926 4.95438 31.56 1487.35 1024.371 34.95 34.80 10.316 3.49953 4.95454 31.56 1487.36 1024.374 35.25 35.10 10.317 3.49960 4.95454 31.56 1487.37 1024.375 35.55 35.40 10.319 3.50066 4.95582 31.57 1487.39 1024.383 35.85 35.70 10.319 3.50083 4.95599 31.57 1487.40 1024.385 36.15 36.00 10.321 3.50101 4.95602 31.57 1487.41 1024.386 36.45 36.30 10.322 3.50138 4.95636 31.57 1487.42 1024.389 36.75 36.59 10.322 3.50154 4.95659 31.57 1487.43 1024.392 37.05 36.89 10.325 3.50237 4.95742 31.58 1487.45 1024.398 37.35 37.19 10.324 3.50378 4.95949 31.59 1487.47 1024.410 37.65 37.49 10.328 3.50498 4.96068 31.60 1487.50 1024.418 37.95 37.79 10.326 3.50541 4.96145 31.61 1487.51 1024.423 38.25 38.09 10.329 3.50645 4.96263 31.62 1487.53 1024.431 38.55 38.39 10.330 3.50579 4.96144 31.61 1487.53 1024.426 38.85 38.68 10.332 3.50642 4.96205 31.61 1487.55 1024.430 39.15 38.98 10.333 3.50687 4.96258 31.62 1487.56 1024.434 39.45 39.28 10.335 3.50960 4.96624 31.64 1487.60 1024.456 39.75 39.58 10.340 3.51119 4.96779 31.65 1487.64 1024.465 40.05 39.88 10.341 3.51309 4.97026 31.67 1487.67 1024.480 40.35 40.18 10.346 3.51332 4.96989 31.67 1487.69 1024.479 40.65 40.48 10.351 3.51367 4.96968 31.67 1487.71 1024.479 40.95 40.77 10.352 3.51469 4.97103 31.68 1487.73 1024.487 41.25 41.07 10.353 3.51471 4.97092 31.68 1487.74 1024.488 41.67 41.49 10.355 3.51413 4.96984 31.67 1487.74 1024.483