*2026/01/16 10:37:42.90 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/20 23:03:53.000 END TIME : UTC 2025/01/20 23:04:20.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 140 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.94 2 Depth metres 0.15 41.94 3 Temperature 'deg C (ITS90)' 8.981 12.317 4 Conductivity S/m 1.95975 3.19385 5 Conductance:Specific S/m 2.88359 4.294 6 Salinity PSS-78 17.32 27.09 7 Speed:Sound m/s 1464.51 1489.09 8 Density kg/m^3 1013.318 1020.639 $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 : 1 LATITUDE : 49 8.54150 N ! (deg min) LONGITUDE : 125 41.30460 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250120_230353 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:22 140 140 MERGEHDR 1.3 2026/01/16 10:35:37 140 140 HDREDIT2 3.2 2026/01/16 10:36:07 ? ? REMOVECH 8.2 2026/01/16 10:36:36 140 140 CALIB 12.1 2026/01/16 10:37:09 140 140 CLEAN 5.3 2026/01/16 10:37:42 140 140 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:07 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 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 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 8.981 1.95975 2.88359 17.32 1464.51 1013.318 0.45 0.45 9.167 2.09020 3.05879 18.49 1466.65 1014.205 0.75 0.75 9.394 2.25243 3.27449 19.94 1469.29 1015.305 1.05 1.05 9.615 2.38489 3.44488 21.09 1471.54 1016.177 1.35 1.36 9.724 2.46635 3.55133 21.82 1472.83 1016.728 1.65 1.66 9.944 2.55008 3.64882 22.50 1474.48 1017.225 1.95 1.96 10.164 2.62722 3.73570 23.10 1476.04 1017.667 2.25 2.26 10.236 2.65805 3.77173 23.35 1476.61 1017.853 2.55 2.56 10.321 2.67785 3.79074 23.49 1477.09 1017.948 2.85 2.86 10.362 2.70263 3.82133 23.70 1477.51 1018.108 3.15 3.16 10.385 2.72279 3.84741 23.88 1477.81 1018.245 3.45 3.46 10.394 2.73224 3.85976 23.97 1477.95 1018.311 3.75 3.76 10.393 2.73756 3.86741 24.02 1478.02 1018.353 4.05 4.06 10.393 2.74741 3.88126 24.11 1478.14 1018.428 4.35 4.36 10.401 2.75743 3.89456 24.21 1478.28 1018.500 4.65 4.66 10.407 2.76907 3.91030 24.31 1478.44 1018.584 4.95 4.96 10.407 2.77844 3.92362 24.41 1478.55 1018.656 5.25 5.26 10.411 2.78721 3.93550 24.49 1478.67 1018.720 5.55 5.56 10.410 2.79143 3.94154 24.53 1478.72 1018.754 5.85 5.86 10.401 2.79364 3.94572 24.56 1478.73 1018.778 6.15 6.16 10.388 2.79521 3.94941 24.58 1478.71 1018.800 6.45 6.46 10.372 2.79512 3.95108 24.59 1478.67 1018.812 6.75 6.76 10.350 2.79416 3.95212 24.59 1478.60 1018.820 7.05 7.06 10.326 2.79231 3.95222 24.59 1478.52 1018.824 7.35 7.36 10.314 2.79225 3.95341 24.60 1478.49 1018.833 7.65 7.66 10.299 2.79262 3.95566 24.61 1478.45 1018.847 7.95 7.96 10.272 2.79577 3.96318 24.66 1478.42 1018.891 8.25 8.26 10.260 2.79704 3.96627 24.68 1478.40 1018.909 8.55 8.56 10.270 2.79793 3.96642 24.68 1478.45 1018.911 8.85 8.86 10.288 2.80232 3.97067 24.72 1478.55 1018.933 9.15 9.16 10.298 2.81044 3.98107 24.79 1478.68 1018.989 9.45 9.46 10.304 2.81973 3.99344 24.87 1478.81 1019.056 9.75 9.76 10.306 2.83085 4.00899 24.98 1478.96 1019.140 10.05 10.06 10.306 2.83306 4.01221 25.00 1478.98 1019.158 10.35 10.36 10.288 2.82712 4.00580 24.96 1478.87 1019.127 10.65 10.66 10.265 2.82033 3.99874 24.91 1478.73 1019.092 10.95 10.96 10.253 2.81776 3.99650 24.89 1478.67 1019.083 11.25 11.26 10.220 2.81688 3.99893 24.90 1478.57 1019.100 11.55 11.56 10.190 2.81940 4.00598 24.95 1478.52 1019.141 11.85 11.86 10.184 2.82121 4.00926 24.97 1478.53 1019.160 12.15 12.16 10.187 2.82561 4.01509 25.01 1478.59 1019.192 12.45 12.46 10.181 2.83372 4.02738 25.09 1478.67 1019.260 12.75 12.76 10.168 2.83922 4.03662 25.16 1478.71 1019.311 13.05 13.06 10.180 2.83478 4.02900 25.10 1478.69 1019.271 13.35 13.36 10.199 2.83159 4.02224 25.06 1478.72 1019.235 13.65 13.66 10.200 2.83581 4.02819 25.10 1478.77 1019.268 13.95 13.96 10.186 2.84441 4.04202 25.19 1478.84 1019.344 14.25 14.26 10.184 2.84617 4.04470 25.21 1478.86 1019.360 14.55 14.56 10.195 2.84782 4.04573 25.22 1478.92 1019.366 14.85 14.86 10.210 2.84853 4.04503 25.22 1478.97 1019.362 15.15 15.16 10.222 2.84897 4.04432 25.21 1479.01 1019.359 15.45 15.46 10.240 2.85120 4.04536 25.22 1479.10 1019.364 15.75 15.76 10.271 2.85200 4.04301 25.21 1479.20 1019.350 16.05 16.06 10.322 2.85634 4.04327 25.21 1479.40 1019.349 16.35 16.36 10.379 2.86379 4.04734 25.25 1479.65 1019.367 16.65 16.66 10.425 2.88548 4.07264 25.43 1480.04 1019.500 16.95 16.96 10.447 2.90579 4.09878 25.61 1480.35 1019.639 17.25 17.26 10.480 2.90767 4.09763 25.60 1480.46 1019.632 17.55 17.56 10.562 2.90216 4.08045 25.49 1480.63 1019.534 17.85 17.86 10.573 2.89868 4.07428 25.45 1480.63 1019.502 18.15 18.16 10.566 2.89629 4.07174 25.43 1480.59 1019.490 18.45 18.46 10.555 2.89894 4.07673 25.47 1480.59 1019.519 18.75 18.76 10.566 2.90961 4.09040 25.56 1480.75 1019.592 19.05 19.06 10.580 2.91395 4.09493 25.59 1480.85 1019.617 19.35 19.36 10.611 2.91756 4.09640 25.61 1480.98 1019.623 19.65 19.66 10.666 2.92284 4.09757 25.62 1481.20 1019.626 19.95 19.96 10.671 2.92945 4.10621 25.68 1481.30 1019.673 20.25 20.26 10.666 2.93315 4.11199 25.72 1481.33 1019.706 20.55 20.56 10.660 2.92756 4.10487 25.67 1481.25 1019.669 20.85 20.86 10.647 2.92464 4.10221 25.65 1481.19 1019.658 21.15 21.16 10.615 2.92064 4.10029 25.63 1481.06 1019.651 21.45 21.46 10.570 2.91885 4.10300 25.65 1480.91 1019.671 21.75 21.76 10.542 2.91544 4.10138 25.63 1480.80 1019.666 22.05 22.06 10.510 2.91340 4.10216 25.63 1480.69 1019.674 22.35 22.36 10.481 2.91252 4.10439 25.65 1480.60 1019.690 22.65 22.66 10.464 2.91291 4.10690 25.66 1480.57 1019.706 22.95 22.96 10.416 2.91328 4.11291 25.70 1480.44 1019.743 23.25 23.26 10.367 2.90942 4.11322 25.70 1480.26 1019.750 23.55 23.56 10.375 2.90560 4.10688 25.65 1480.25 1019.717 23.85 23.86 10.361 2.90681 4.11018 25.68 1480.23 1019.737 24.15 24.16 10.337 2.91074 4.11852 25.73 1480.21 1019.785 24.45 24.46 10.358 2.91563 4.12304 25.76 1480.33 1019.809 24.75 24.76 10.374 2.91849 4.12514 25.78 1480.42 1019.820 25.05 25.06 10.409 2.92269 4.12708 25.80 1480.57 1019.829 25.35 25.36 10.441 2.93143 4.13571 25.86 1480.76 1019.874 25.65 25.66 10.476 2.93530 4.13704 25.87 1480.91 1019.879 25.95 25.96 10.495 2.93827 4.13895 25.89 1481.00 1019.889 26.25 26.26 10.510 2.93924 4.13861 25.88 1481.06 1019.887 26.55 26.56 10.521 2.93939 4.13754 25.88 1481.10 1019.882 26.85 26.86 10.527 2.93961 4.13709 25.88 1481.12 1019.880 27.15 27.16 10.496 2.93936 4.14036 25.90 1481.04 1019.902 27.45 27.46 10.438 2.93641 4.14306 25.91 1480.85 1019.922 27.75 27.76 10.362 2.92586 4.13703 25.86 1480.51 1019.898 28.05 28.06 10.265 2.91212 4.12890 25.79 1480.09 1019.863 28.35 28.36 10.212 2.90486 4.12481 25.76 1479.86 1019.846 28.65 28.66 10.143 2.89840 4.12369 25.75 1479.59 1019.847 28.95 28.96 10.086 2.89777 4.12956 25.78 1479.43 1019.884 29.25 29.26 10.073 2.89827 4.13172 25.79 1479.40 1019.898 29.55 29.56 10.086 2.90251 4.13624 25.83 1479.49 1019.923 29.85 29.86 10.087 2.90738 4.14312 25.87 1479.56 1019.961 30.15 30.16 10.120 2.90932 4.14194 25.87 1479.68 1019.953 30.45 30.46 10.157 2.91269 4.14245 25.88 1479.83 1019.954 30.75 30.76 10.161 2.91738 4.14865 25.92 1479.90 1019.989 31.05 31.06 10.158 2.91858 4.15068 25.93 1479.91 1020.001 31.35 31.36 10.172 2.91594 4.14527 25.90 1479.92 1019.972 31.65 31.66 10.206 2.91561 4.14084 25.87 1480.02 1019.947 31.95 31.96 10.229 2.92776 4.15538 25.97 1480.23 1020.024 32.25 32.26 10.287 2.93635 4.16071 26.01 1480.50 1020.050 32.55 32.56 10.322 2.94967 4.17539 26.12 1480.76 1020.127 32.85 32.86 10.359 2.94891 4.16996 26.08 1480.86 1020.096 33.15 33.16 10.369 2.94484 4.16302 26.04 1480.84 1020.059 33.45 33.46 10.361 2.94185 4.15974 26.01 1480.79 1020.044 33.75 33.76 10.402 2.94368 4.15756 26.00 1480.93 1020.030 34.05 34.06 10.454 2.95580 4.16855 26.08 1481.22 1020.086 34.35 34.36 10.479 2.96483 4.17826 26.15 1481.41 1020.137 34.65 34.66 10.548 2.97107 4.17899 26.16 1481.67 1020.137 34.95 34.96 10.584 2.97237 4.17654 26.15 1481.79 1020.122 35.25 35.26 10.622 2.97382 4.17417 26.14 1481.92 1020.107 35.55 35.56 10.669 2.98100 4.17873 26.17 1482.14 1020.129 35.85 35.86 10.715 2.98422 4.17779 26.17 1482.31 1020.121 36.15 36.16 10.771 2.99024 4.17970 26.19 1482.54 1020.128 36.45 36.45 10.866 2.99497 4.17517 26.17 1482.86 1020.096 36.75 36.75 10.942 3.01365 4.19242 26.29 1483.29 1020.183 37.05 37.05 10.986 3.02414 4.20184 26.36 1483.53 1020.231 37.35 37.35 11.042 3.03313 4.20779 26.41 1483.80 1020.259 37.65 37.65 11.125 3.03572 4.20164 26.37 1484.06 1020.220 37.95 37.95 11.156 3.03663 4.19933 26.36 1484.16 1020.206 38.25 38.25 11.145 3.04999 4.21912 26.50 1484.29 1020.314 38.55 38.55 11.200 3.07195 4.24305 26.67 1484.69 1020.439 38.85 38.85 11.368 3.09410 4.25388 26.76 1485.40 1020.483 39.15 39.15 11.606 3.12737 4.27167 26.90 1486.43 1020.556 39.45 39.45 11.808 3.13200 4.25456 26.80 1487.02 1020.444 39.75 39.75 11.894 3.13246 4.24518 26.74 1487.26 1020.385 40.05 40.05 11.917 3.13019 4.23952 26.70 1487.30 1020.353 40.35 40.35 11.913 3.13490 4.24632 26.75 1487.35 1020.392 40.65 40.65 11.937 3.14121 4.25218 26.79 1487.48 1020.422 40.95 40.95 11.975 3.14503 4.25293 26.80 1487.63 1020.423 41.25 41.25 12.036 3.18067 4.29400 27.09 1488.20 1020.639 41.55 41.55 12.254 3.19030 4.28186 27.03 1488.88 1020.550 41.94 41.94 12.317 3.19385 4.27935 27.01 1489.09 1020.531