*2026/01/16 10:37:54.04 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/08 23:59:09.000 END TIME : UTC 2025/05/08 23:59:35.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 134 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.91 2 Depth metres 0.15 39.74 3 Temperature 'deg C (ITS90)' 9.124 13.858 4 Conductivity S/m 2.95629 3.44452 5 Conductance:Specific S/m 3.81875 5.04704 6 Salinity PSS-78 23.93 32.05 7 Speed:Sound m/s 1483.38 1490.45 8 Density kg/m^3 1017.707 1024.973 $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 : 145 LATITUDE : 48 57.23940 N ! (deg min) LONGITUDE : 125 2.02010 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250508_235909 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 134 134 MERGEHDR 1.3 2026/01/16 10:35:44 134 134 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 134 134 CALIB 12.1 2026/01/16 10:37:17 134 134 CLEAN 5.3 2026/01/16 10:37:54 134 134 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:41 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:17 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 13.858 2.97453 3.82741 24.00 1490.11 1017.730 0.45 0.45 13.708 2.95629 3.81875 23.93 1489.53 1017.707 0.75 0.75 13.507 2.96637 3.85177 24.14 1489.11 1017.911 1.05 1.05 13.323 3.04184 3.96870 24.94 1489.43 1018.562 1.35 1.35 13.307 3.09107 4.03463 25.40 1489.91 1018.918 1.65 1.65 13.310 3.11359 4.06365 25.60 1490.17 1019.074 1.95 1.95 13.245 3.12846 4.08998 25.78 1490.16 1019.225 2.25 2.25 13.183 3.14583 4.11945 25.98 1490.19 1019.393 2.55 2.55 13.150 3.17254 4.15800 26.24 1490.40 1019.606 2.85 2.85 13.098 3.18937 4.18569 26.43 1490.45 1019.763 3.15 3.15 13.024 3.19578 4.20234 26.55 1490.33 1019.864 3.45 3.45 12.915 3.20720 4.22941 26.73 1490.18 1020.025 3.75 3.75 12.706 3.23216 4.28604 27.11 1489.91 1020.358 4.05 4.05 12.508 3.27328 4.36347 27.63 1489.86 1020.802 4.35 4.35 12.227 3.31578 4.45344 28.24 1489.62 1021.324 4.65 4.65 11.748 3.37238 4.58856 29.15 1489.03 1022.113 4.95 4.95 11.498 3.37875 4.62869 29.40 1488.47 1022.359 5.25 5.25 11.255 3.38899 4.67385 29.70 1487.97 1022.630 5.55 5.55 10.948 3.39958 4.72845 30.05 1487.31 1022.958 5.85 5.85 10.679 3.40759 4.77530 30.35 1486.72 1023.238 6.15 6.14 10.411 3.40787 4.81195 30.58 1486.04 1023.461 6.45 6.44 10.186 3.40614 4.84026 30.75 1485.44 1023.634 6.75 6.74 10.026 3.40532 4.86118 30.88 1485.02 1023.761 7.05 7.04 9.922 3.40512 4.87536 30.96 1484.75 1023.847 7.35 7.34 9.865 3.40619 4.88485 31.02 1484.62 1023.904 7.65 7.64 9.817 3.40795 4.89415 31.08 1484.52 1023.959 7.95 7.94 9.776 3.40863 4.90077 31.12 1484.43 1023.999 8.25 8.24 9.734 3.40714 4.90461 31.14 1484.31 1024.024 8.55 8.53 9.695 3.40635 4.90898 31.17 1484.20 1024.052 8.85 8.83 9.667 3.40676 4.91359 31.20 1484.14 1024.080 9.15 9.13 9.631 3.40388 4.91454 31.20 1484.01 1024.089 9.45 9.43 9.610 3.40200 4.91477 31.20 1483.94 1024.092 9.75 9.73 9.594 3.40092 4.91550 31.20 1483.89 1024.099 10.05 10.03 9.575 3.39962 4.91630 31.21 1483.83 1024.105 10.35 10.33 9.559 3.39961 4.91857 31.22 1483.79 1024.120 10.65 10.62 9.545 3.40008 4.92120 31.24 1483.77 1024.136 10.95 10.92 9.531 3.40341 4.92807 31.28 1483.78 1024.176 11.25 11.22 9.510 3.40814 4.93787 31.35 1483.79 1024.232 11.55 11.52 9.488 3.41279 4.94780 31.42 1483.79 1024.290 11.85 11.82 9.454 3.41380 4.95419 31.46 1483.72 1024.328 12.15 12.12 9.423 3.41232 4.95650 31.47 1483.62 1024.343 12.45 12.42 9.402 3.41017 4.95638 31.46 1483.55 1024.345 12.75 12.71 9.389 3.40940 4.95718 31.47 1483.51 1024.351 13.05 13.01 9.375 3.40996 4.95997 31.49 1483.49 1024.369 13.35 13.31 9.371 3.41120 4.96229 31.50 1483.50 1024.383 13.65 13.61 9.369 3.41280 4.96499 31.52 1483.51 1024.399 13.95 13.91 9.358 3.41291 4.96668 31.53 1483.49 1024.410 14.25 14.21 9.353 3.41319 4.96780 31.54 1483.49 1024.418 14.55 14.51 9.340 3.41164 4.96739 31.53 1483.44 1024.418 14.85 14.80 9.326 3.40916 4.96590 31.52 1483.38 1024.411 15.15 15.10 9.319 3.41148 4.97027 31.55 1483.39 1024.437 15.45 15.40 9.317 3.41577 4.97683 31.59 1483.44 1024.474 15.75 15.70 9.319 3.41908 4.98128 31.63 1483.50 1024.500 16.05 16.00 9.322 3.42277 4.98620 31.66 1483.56 1024.528 16.35 16.30 9.327 3.42354 4.98661 31.66 1483.58 1024.532 16.65 16.60 9.330 3.42432 4.98734 31.67 1483.61 1024.537 16.95 16.89 9.331 3.42466 4.98771 31.67 1483.62 1024.540 17.25 17.19 9.334 3.42480 4.98741 31.67 1483.63 1024.539 17.55 17.49 9.336 3.42511 4.98771 31.67 1483.64 1024.542 17.85 17.79 9.337 3.42536 4.98786 31.67 1483.66 1024.544 18.15 18.09 9.338 3.42537 4.98773 31.67 1483.66 1024.545 18.45 18.39 9.338 3.42575 4.98824 31.68 1483.67 1024.549 18.75 18.69 9.334 3.42775 4.99182 31.70 1483.69 1024.570 19.05 18.98 9.323 3.43113 4.99824 31.74 1483.71 1024.607 19.35 19.28 9.319 3.43152 4.99945 31.75 1483.71 1024.615 19.65 19.58 9.310 3.43172 5.00105 31.76 1483.69 1024.626 19.95 19.88 9.301 3.43196 5.00265 31.77 1483.68 1024.636 20.25 20.18 9.293 3.43298 5.00534 31.79 1483.68 1024.653 20.55 20.48 9.288 3.43325 5.00648 31.80 1483.67 1024.661 20.85 20.77 9.285 3.43298 5.00657 31.80 1483.66 1024.663 21.15 21.07 9.280 3.43264 5.00678 31.80 1483.65 1024.665 21.45 21.37 9.275 3.43285 5.00778 31.80 1483.65 1024.672 21.75 21.67 9.271 3.43262 5.00803 31.81 1483.64 1024.675 22.05 21.97 9.268 3.43216 5.00788 31.80 1483.63 1024.676 22.35 22.27 9.261 3.43279 5.00973 31.82 1483.62 1024.688 22.65 22.57 9.254 3.43215 5.00982 31.82 1483.60 1024.690 22.95 22.86 9.251 3.43262 5.01100 31.82 1483.60 1024.698 23.25 23.16 9.246 3.43283 5.01195 31.83 1483.60 1024.704 23.55 23.46 9.241 3.43313 5.01324 31.84 1483.59 1024.713 23.85 23.76 9.237 3.43306 5.01374 31.84 1483.59 1024.717 24.15 24.06 9.234 3.43317 5.01422 31.84 1483.59 1024.721 24.45 24.36 9.232 3.43346 5.01504 31.85 1483.59 1024.727 24.75 24.65 9.229 3.43332 5.01523 31.85 1483.58 1024.729 25.05 24.95 9.225 3.43309 5.01548 31.85 1483.58 1024.732 25.35 25.25 9.221 3.43333 5.01643 31.86 1483.57 1024.739 25.65 25.55 9.220 3.43279 5.01573 31.85 1483.57 1024.736 25.95 25.85 9.218 3.43357 5.01717 31.86 1483.58 1024.746 26.25 26.15 9.217 3.43408 5.01811 31.87 1483.59 1024.752 26.55 26.44 9.216 3.43405 5.01817 31.87 1483.59 1024.754 26.85 26.74 9.215 3.43422 5.01856 31.87 1483.59 1024.757 27.15 27.04 9.215 3.43399 5.01828 31.87 1483.59 1024.757 27.45 27.34 9.214 3.43416 5.01867 31.87 1483.60 1024.760 27.75 27.64 9.213 3.43441 5.01919 31.87 1483.60 1024.765 28.05 27.94 9.212 3.43493 5.02010 31.88 1483.61 1024.771 28.35 28.24 9.211 3.43555 5.02110 31.89 1483.62 1024.778 28.65 28.53 9.211 3.43601 5.02182 31.89 1483.63 1024.783 28.95 28.83 9.209 3.43614 5.02220 31.89 1483.64 1024.786 29.25 29.13 9.209 3.43661 5.02301 31.90 1483.64 1024.792 29.55 29.43 9.208 3.43639 5.02276 31.90 1483.65 1024.792 29.85 29.73 9.207 3.43713 5.02402 31.91 1483.66 1024.800 30.15 30.03 9.207 3.43733 5.02435 31.91 1483.66 1024.803 30.45 30.32 9.207 3.43912 5.02690 31.93 1483.69 1024.819 30.75 30.62 9.206 3.44052 5.02912 31.94 1483.71 1024.832 31.05 30.92 9.206 3.44059 5.02923 31.94 1483.72 1024.834 31.35 31.22 9.204 3.44086 5.02990 31.95 1483.72 1024.839 31.65 31.52 9.201 3.44094 5.03045 31.95 1483.72 1024.844 31.95 31.82 9.197 3.44138 5.03165 31.96 1483.72 1024.852 32.25 32.11 9.196 3.44108 5.03143 31.96 1483.72 1024.852 32.55 32.41 9.195 3.44125 5.03185 31.96 1483.72 1024.855 32.85 32.71 9.192 3.44148 5.03251 31.96 1483.72 1024.860 33.15 33.01 9.192 3.44138 5.03245 31.96 1483.72 1024.861 33.45 33.31 9.192 3.44233 5.03376 31.97 1483.74 1024.870 33.75 33.61 9.191 3.44216 5.03369 31.97 1483.74 1024.871 34.05 33.91 9.189 3.44278 5.03494 31.98 1483.75 1024.879 34.35 34.20 9.186 3.44240 5.03483 31.98 1483.74 1024.880 34.65 34.50 9.184 3.44277 5.03567 31.98 1483.74 1024.886 34.95 34.80 9.184 3.44231 5.03502 31.98 1483.74 1024.884 35.25 35.10 9.182 3.44223 5.03514 31.98 1483.74 1024.885 35.55 35.40 9.181 3.44305 5.03649 31.99 1483.75 1024.894 35.85 35.70 9.178 3.44317 5.03711 31.99 1483.75 1024.899 36.15 35.99 9.179 3.44341 5.03732 31.99 1483.76 1024.901 36.45 36.29 9.180 3.44342 5.03716 31.99 1483.77 1024.902 36.75 36.59 9.177 3.44302 5.03698 31.99 1483.76 1024.902 37.05 36.89 9.174 3.44199 5.03597 31.98 1483.75 1024.898 37.35 37.19 9.166 3.44223 5.03754 31.99 1483.73 1024.908 37.65 37.49 9.152 3.44277 5.04029 32.01 1483.71 1024.925 37.95 37.78 9.141 3.44354 5.04310 32.03 1483.69 1024.943 38.25 38.08 9.138 3.44409 5.04442 32.04 1483.70 1024.951 38.55 38.38 9.138 3.44339 5.04340 32.03 1483.69 1024.947 38.85 38.68 9.136 3.44444 5.04520 32.04 1483.71 1024.958 39.15 38.98 9.132 3.44382 5.04479 32.04 1483.69 1024.957 39.45 39.28 9.129 3.44401 5.04559 32.04 1483.69 1024.963 39.75 39.57 9.124 3.44449 5.04703 32.05 1483.69 1024.973 39.91 39.74 9.124 3.44452 5.04704 32.05 1483.69 1024.973