*2026/01/16 10:37:53.47 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/07 22:36:33.000 END TIME : UTC 2025/05/07 22:36:57.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 124 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.19 2 Depth metres 0.15 37.05 3 Temperature 'deg C (ITS90)' 9.104 14.757 4 Conductivity S/m 2.08757 3.42318 5 Conductance:Specific S/m 2.62544 5.01871 6 Salinity PSS-78 15.9 31.85 7 Speed:Sound m/s 1483.28 1489.51 8 Density kg/m^3 1011.348 1024.805 $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 : 131 LATITUDE : 48 58.94220 N ! (deg min) LONGITUDE : 124 58.51490 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250507_223633 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:29 124 124 MERGEHDR 1.3 2026/01/16 10:35:43 124 124 HDREDIT2 3.2 2026/01/16 10:36:14 ? ? REMOVECH 8.2 2026/01/16 10:36:40 124 124 CALIB 12.1 2026/01/16 10:37:16 124 124 CLEAN 5.3 2026/01/16 10:37:53 124 124 $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 14.757 2.08757 2.62544 15.90 1483.72 1011.348 0.45 0.45 14.523 2.13558 2.70171 16.40 1483.51 1011.773 0.75 0.76 14.293 2.17960 2.77353 16.87 1483.28 1012.176 1.05 1.06 14.196 2.25709 2.87927 17.57 1483.77 1012.732 1.35 1.36 14.206 2.27247 2.89811 17.70 1483.96 1012.828 1.65 1.66 14.213 2.33206 2.97359 18.20 1484.58 1013.216 1.95 1.96 14.164 2.37512 3.03225 18.59 1484.87 1013.527 2.25 2.27 13.964 2.41040 3.09313 18.99 1484.66 1013.872 2.55 2.57 13.554 2.46162 3.19239 19.64 1484.03 1014.446 2.85 2.87 13.002 2.61469 3.44025 21.29 1484.06 1015.815 3.15 3.17 12.640 2.92958 3.89161 24.36 1486.43 1018.247 3.45 3.47 12.366 3.19518 4.27552 27.01 1488.62 1020.341 3.75 3.77 12.065 3.34403 4.51105 28.63 1489.51 1021.653 4.05 4.07 11.573 3.37561 4.61494 29.31 1488.61 1022.272 4.35 4.37 11.152 3.38398 4.68016 29.73 1487.64 1022.670 4.65 4.67 10.756 3.38918 4.73937 30.10 1486.68 1023.030 4.95 4.96 10.497 3.39210 4.77797 30.35 1486.05 1023.263 5.25 5.26 10.336 3.39556 4.80466 30.52 1485.68 1023.423 5.55 5.56 10.199 3.39271 4.81931 30.60 1485.30 1023.514 5.85 5.86 10.096 3.39170 4.83204 30.68 1485.02 1023.592 6.15 6.16 9.998 3.39081 4.84435 30.75 1484.76 1023.668 6.45 6.46 9.953 3.39247 4.85295 30.81 1484.67 1023.719 6.75 6.76 9.913 3.39300 4.85926 30.85 1484.58 1023.758 7.05 7.06 9.852 3.39408 4.86924 30.91 1484.44 1023.818 7.35 7.35 9.782 3.39416 4.87923 30.97 1484.26 1023.878 7.65 7.65 9.718 3.39558 4.89030 31.04 1484.11 1023.944 7.95 7.95 9.683 3.39702 4.89730 31.09 1484.05 1023.986 8.25 8.25 9.651 3.39842 4.90384 31.13 1483.98 1024.025 8.55 8.55 9.619 3.39876 4.90881 31.16 1483.91 1024.055 8.85 8.85 9.599 3.40021 4.91378 31.19 1483.88 1024.085 9.15 9.15 9.576 3.40189 4.91948 31.23 1483.85 1024.119 9.45 9.44 9.548 3.40414 4.92664 31.28 1483.81 1024.161 9.75 9.74 9.530 3.40416 4.92928 31.29 1483.76 1024.178 10.05 10.04 9.520 3.40394 4.93033 31.30 1483.74 1024.185 10.35 10.34 9.511 3.40412 4.93194 31.31 1483.72 1024.196 10.65 10.64 9.500 3.40411 4.93346 31.32 1483.70 1024.206 10.95 10.94 9.491 3.40397 4.93462 31.32 1483.68 1024.214 11.25 11.24 9.480 3.40357 4.93563 31.33 1483.65 1024.222 11.55 11.54 9.471 3.40397 4.93750 31.34 1483.64 1024.234 11.85 11.83 9.462 3.40374 4.93841 31.35 1483.62 1024.240 12.15 12.13 9.450 3.40367 4.94002 31.36 1483.59 1024.251 12.45 12.43 9.441 3.40291 4.94016 31.35 1483.56 1024.254 12.75 12.73 9.436 3.40430 4.94297 31.37 1483.57 1024.271 13.05 13.03 9.427 3.40539 4.94575 31.39 1483.57 1024.288 13.35 13.33 9.416 3.40572 4.94794 31.41 1483.54 1024.302 13.65 13.63 9.407 3.40699 4.95096 31.43 1483.54 1024.320 13.95 13.92 9.399 3.40637 4.95124 31.43 1483.52 1024.323 14.25 14.22 9.388 3.40668 4.95325 31.44 1483.50 1024.336 14.55 14.52 9.380 3.40663 4.95436 31.45 1483.48 1024.344 14.85 14.82 9.376 3.40544 4.95320 31.44 1483.46 1024.339 15.15 15.12 9.370 3.40691 4.95619 31.46 1483.47 1024.357 15.45 15.42 9.367 3.40713 4.95701 31.46 1483.47 1024.363 15.75 15.71 9.366 3.40751 4.95772 31.47 1483.47 1024.368 16.05 16.01 9.365 3.40831 4.95897 31.48 1483.49 1024.376 16.35 16.31 9.364 3.40855 4.95949 31.48 1483.49 1024.380 16.65 16.61 9.362 3.40901 4.96045 31.49 1483.50 1024.387 16.95 16.91 9.360 3.40987 4.96199 31.50 1483.51 1024.397 17.25 17.21 9.359 3.41051 4.96308 31.50 1483.52 1024.404 17.55 17.51 9.358 3.41110 4.96407 31.51 1483.53 1024.411 17.85 17.80 9.356 3.41149 4.96485 31.51 1483.53 1024.417 18.15 18.10 9.356 3.41229 4.96612 31.52 1483.55 1024.425 18.45 18.40 9.355 3.41226 4.96613 31.52 1483.55 1024.426 18.75 18.70 9.355 3.41274 4.96680 31.53 1483.56 1024.431 19.05 19.00 9.353 3.41277 4.96722 31.53 1483.56 1024.435 19.35 19.30 9.349 3.41309 4.96820 31.54 1483.56 1024.442 19.65 19.60 9.345 3.41401 4.97018 31.55 1483.56 1024.454 19.95 19.89 9.342 3.41331 4.96954 31.54 1483.55 1024.452 20.25 20.19 9.339 3.41448 4.97175 31.56 1483.56 1024.466 20.55 20.49 9.338 3.41528 4.97304 31.57 1483.57 1024.474 20.85 20.79 9.337 3.41623 4.97458 31.58 1483.59 1024.484 21.15 21.09 9.335 3.41847 4.97814 31.60 1483.62 1024.505 21.45 21.39 9.334 3.41809 4.97772 31.60 1483.61 1024.504 21.75 21.69 9.333 3.41902 4.97926 31.61 1483.63 1024.514 22.05 21.98 9.330 3.42013 4.98124 31.62 1483.64 1024.526 22.35 22.28 9.330 3.42152 4.98334 31.64 1483.66 1024.539 22.65 22.58 9.327 3.42227 4.98484 31.65 1483.67 1024.548 22.95 22.88 9.322 3.42121 4.98395 31.64 1483.65 1024.545 23.25 23.18 9.318 3.42151 4.98496 31.65 1483.64 1024.552 23.55 23.48 9.315 3.42210 4.98634 31.66 1483.65 1024.561 23.85 23.77 9.313 3.42232 4.98692 31.66 1483.65 1024.566 24.15 24.07 9.309 3.42192 4.98698 31.66 1483.64 1024.568 24.45 24.37 9.305 3.42196 4.98759 31.66 1483.63 1024.572 24.75 24.67 9.302 3.42109 4.98671 31.66 1483.62 1024.569 25.05 24.97 9.300 3.42113 4.98706 31.66 1483.62 1024.572 25.35 25.27 9.297 3.42136 4.98789 31.67 1483.62 1024.578 25.65 25.57 9.292 3.42194 4.98938 31.68 1483.62 1024.588 25.95 25.86 9.289 3.42188 4.98970 31.68 1483.62 1024.591 26.25 26.16 9.286 3.42229 4.99077 31.68 1483.62 1024.598 26.55 26.46 9.283 3.42139 4.98995 31.68 1483.60 1024.595 26.85 26.76 9.281 3.42202 4.99112 31.69 1483.61 1024.603 27.15 27.06 9.280 3.42204 4.99136 31.69 1483.61 1024.606 27.45 27.36 9.276 3.42226 4.99217 31.69 1483.61 1024.612 27.75 27.66 9.272 3.42141 4.99159 31.69 1483.59 1024.610 28.05 27.95 9.265 3.42177 4.99309 31.70 1483.59 1024.620 28.35 28.25 9.262 3.42224 4.99418 31.70 1483.59 1024.627 28.65 28.55 9.258 3.42147 4.99364 31.70 1483.57 1024.626 28.95 28.85 9.250 3.42118 4.99437 31.70 1483.55 1024.631 29.25 29.15 9.242 3.42141 4.99596 31.71 1483.54 1024.642 29.55 29.45 9.233 3.42179 4.99783 31.72 1483.53 1024.654 29.85 29.74 9.228 3.42247 4.99951 31.74 1483.53 1024.664 30.15 30.04 9.218 3.42189 5.00015 31.74 1483.50 1024.670 30.45 30.34 9.209 3.42273 5.00264 31.76 1483.49 1024.685 30.75 30.64 9.200 3.42201 5.00296 31.76 1483.46 1024.688 31.05 30.94 9.192 3.42254 5.00486 31.77 1483.45 1024.701 31.35 31.24 9.184 3.42281 5.00638 31.78 1483.44 1024.711 31.65 31.54 9.179 3.42174 5.00567 31.77 1483.42 1024.708 31.95 31.83 9.169 3.42245 5.00808 31.79 1483.41 1024.723 32.25 32.13 9.163 3.42170 5.00797 31.79 1483.38 1024.724 32.55 32.43 9.159 3.42160 5.00838 31.79 1483.38 1024.728 32.85 32.73 9.155 3.42188 5.00936 31.79 1483.38 1024.735 33.15 33.03 9.152 3.42141 5.00911 31.79 1483.37 1024.735 33.45 33.33 9.151 3.42224 5.01041 31.80 1483.38 1024.743 33.75 33.62 9.155 3.42224 5.00990 31.80 1483.39 1024.741 34.05 33.92 9.154 3.42318 5.01145 31.81 1483.41 1024.751 34.35 34.22 9.151 3.42261 5.01100 31.80 1483.40 1024.750 34.65 34.52 9.147 3.42161 5.01010 31.80 1483.38 1024.747 34.95 34.82 9.142 3.42266 5.01244 31.81 1483.38 1024.761 35.25 35.12 9.131 3.42215 5.01333 31.82 1483.35 1024.768 35.55 35.41 9.125 3.42243 5.01451 31.82 1483.35 1024.776 35.85 35.71 9.121 3.42309 5.01603 31.83 1483.35 1024.786 36.15 36.01 9.120 3.42315 5.01640 31.84 1483.35 1024.789 36.45 36.31 9.114 3.42185 5.01525 31.83 1483.33 1024.784 36.75 36.61 9.104 3.42315 5.01871 31.85 1483.32 1024.805 37.19 37.05 9.105 3.42275 5.01799 31.85 1483.32 1024.803