*2026/01/16 10:37:58.07 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/22 16:29:42.000 END TIME : UTC 2025/07/22 16:30:10.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 145 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 43.42 2 Depth metres 0.15 43.2 3 Temperature 'deg C (ITS90)' 9.215 16.137 4 Conductivity S/m 3.45681 3.92775 5 Conductance:Specific S/m 4.74977 5.05857 6 Salinity PSS-78 30.63 32.15 7 Speed:Sound m/s 1483.98 1505.18 8 Density kg/m^3 1022.359 1025.047 $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 : 223 LATITUDE : 49 52.22290 N ! (deg min) LONGITUDE : 126 52.40160 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250722_162942 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:34 145 145 MERGEHDR 1.3 2026/01/16 10:35:48 145 145 HDREDIT2 3.2 2026/01/16 10:36:19 ? ? REMOVECH 8.2 2026/01/16 10:36:51 145 145 CALIB 12.1 2026/01/16 10:37:22 145 145 CLEAN 5.3 2026/01/16 10:37:58 145 145 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:19 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 10:36:51 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:22 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 16.137 3.90779 4.74977 30.63 1505.18 1022.359 0.45 0.45 16.040 3.90692 4.75994 30.69 1504.96 1022.433 0.75 0.75 15.939 3.90913 4.77432 30.79 1504.76 1022.531 1.05 1.05 15.834 3.90622 4.78300 30.85 1504.50 1022.598 1.35 1.35 15.826 3.92399 4.80577 31.01 1504.67 1022.727 1.65 1.64 15.817 3.92775 4.81140 31.05 1504.69 1022.760 1.95 1.94 15.730 3.92208 4.81477 31.07 1504.44 1022.795 2.25 2.24 15.606 3.88540 4.78424 30.84 1503.80 1022.649 2.55 2.54 15.449 3.86576 4.77852 30.79 1503.25 1022.645 2.85 2.84 15.348 3.85768 4.78051 30.80 1502.94 1022.674 3.15 3.14 15.223 3.85291 4.78949 30.85 1502.61 1022.745 3.45 3.44 15.125 3.84913 4.79640 30.90 1502.36 1022.800 3.75 3.74 15.061 3.84247 4.79575 30.89 1502.15 1022.808 4.05 4.04 15.003 3.84050 4.80031 30.92 1502.00 1022.844 4.35 4.34 14.928 3.84053 4.80927 30.98 1501.83 1022.907 4.65 4.63 14.854 3.83298 4.80874 30.97 1501.59 1022.917 4.95 4.93 14.809 3.83229 4.81338 31.00 1501.48 1022.951 5.25 5.23 14.766 3.82918 4.81463 31.00 1501.36 1022.965 5.55 5.53 14.669 3.82823 4.82525 31.07 1501.13 1023.040 5.85 5.83 14.427 3.82217 4.84708 31.21 1500.52 1023.199 6.15 6.13 14.177 3.80338 4.85414 31.24 1499.74 1023.276 6.45 6.43 13.887 3.78332 4.86454 31.29 1498.86 1023.376 6.75 6.73 13.588 3.76010 4.87215 31.32 1497.91 1023.460 7.05 7.03 13.233 3.71213 4.85460 31.17 1496.55 1023.411 7.35 7.32 12.836 3.67448 4.85582 31.14 1495.19 1023.469 7.65 7.62 12.154 3.63922 4.89747 31.37 1493.15 1023.778 7.95 7.92 11.777 3.59103 4.88217 31.22 1491.67 1023.735 8.25 8.22 11.402 3.56782 4.90056 31.31 1490.48 1023.874 8.55 8.52 11.056 3.54558 4.91679 31.39 1489.36 1023.996 8.85 8.82 10.854 3.54011 4.93689 31.51 1488.79 1024.125 9.15 9.12 10.705 3.53665 4.95265 31.60 1488.38 1024.225 9.45 9.41 10.589 3.53329 4.96406 31.67 1488.05 1024.298 9.75 9.71 10.501 3.52636 4.96655 31.68 1487.75 1024.320 10.05 10.01 10.444 3.52228 4.96876 31.69 1487.57 1024.338 10.35 10.31 10.406 3.52000 4.97089 31.70 1487.45 1024.354 10.65 10.61 10.338 3.51873 4.97873 31.74 1487.26 1024.403 10.95 10.91 10.280 3.51704 4.98449 31.78 1487.10 1024.440 11.25 11.21 10.228 3.51310 4.98621 31.78 1486.93 1024.454 11.55 11.50 10.183 3.51209 4.99124 31.81 1486.80 1024.487 11.85 11.80 10.149 3.50760 4.98968 31.80 1486.67 1024.482 12.15 12.10 10.108 3.50420 4.99054 31.80 1486.53 1024.490 12.45 12.40 10.059 3.50155 4.99376 31.81 1486.37 1024.513 12.75 12.70 10.026 3.49761 4.99288 31.80 1486.25 1024.511 13.05 13.00 9.977 3.49522 4.99647 31.82 1486.10 1024.535 13.35 13.30 9.936 3.49526 5.00238 31.86 1486.00 1024.572 13.65 13.59 9.907 3.49434 5.00523 31.88 1485.92 1024.591 13.95 13.89 9.888 3.49317 5.00622 31.88 1485.86 1024.598 14.25 14.19 9.864 3.49038 5.00564 31.87 1485.77 1024.598 14.55 14.49 9.831 3.48846 5.00767 31.88 1485.66 1024.612 14.85 14.79 9.807 3.48746 5.00972 31.89 1485.59 1024.626 15.15 15.09 9.786 3.48612 5.01079 31.90 1485.53 1024.635 15.45 15.38 9.764 3.48613 5.01404 31.92 1485.48 1024.655 15.75 15.68 9.740 3.48378 5.01406 31.91 1485.39 1024.658 16.05 15.98 9.711 3.48241 5.01632 31.93 1485.30 1024.674 16.35 16.28 9.681 3.47878 5.01539 31.92 1485.19 1024.671 16.65 16.58 9.655 3.47746 5.01731 31.93 1485.11 1024.685 16.95 16.88 9.626 3.47697 5.02072 31.95 1485.03 1024.706 17.25 17.18 9.595 3.47586 5.02364 31.96 1484.94 1024.726 17.55 17.47 9.568 3.47327 5.02380 31.96 1484.85 1024.729 17.85 17.77 9.539 3.47186 5.02598 31.97 1484.76 1024.744 18.15 18.07 9.516 3.46998 5.02667 31.97 1484.68 1024.750 18.45 18.37 9.500 3.46919 5.02777 31.98 1484.64 1024.758 18.75 18.67 9.483 3.46762 5.02796 31.98 1484.58 1024.762 19.05 18.97 9.464 3.46758 5.03070 31.99 1484.53 1024.779 19.35 19.26 9.454 3.46702 5.03134 32.00 1484.51 1024.784 19.65 19.56 9.447 3.46692 5.03222 32.00 1484.49 1024.791 19.95 19.86 9.438 3.46551 5.03154 32.00 1484.45 1024.789 20.25 20.16 9.430 3.46465 5.03145 31.99 1484.43 1024.790 20.55 20.46 9.417 3.46475 5.03342 32.01 1484.40 1024.803 20.85 20.76 9.411 3.46476 5.03438 32.01 1484.39 1024.810 21.15 21.05 9.402 3.46478 5.03573 32.02 1484.37 1024.819 21.45 21.35 9.396 3.46512 5.03710 32.03 1484.36 1024.828 21.75 21.65 9.391 3.46506 5.03779 32.03 1484.35 1024.833 22.05 21.95 9.388 3.46502 5.03819 32.03 1484.35 1024.837 22.35 22.25 9.384 3.46515 5.03895 32.04 1484.35 1024.843 22.65 22.55 9.380 3.46446 5.03851 32.04 1484.33 1024.842 22.95 22.84 9.370 3.46438 5.03979 32.04 1484.31 1024.850 23.25 23.14 9.363 3.46372 5.03983 32.04 1484.29 1024.852 23.55 23.44 9.360 3.46422 5.04109 32.05 1484.29 1024.861 23.85 23.74 9.359 3.46481 5.04211 32.06 1484.30 1024.867 24.15 24.04 9.355 3.46282 5.03978 32.04 1484.27 1024.856 24.45 24.34 9.339 3.46261 5.04184 32.05 1484.23 1024.870 24.75 24.63 9.330 3.46250 5.04299 32.06 1484.21 1024.878 25.05 24.93 9.324 3.46210 5.04324 32.06 1484.20 1024.880 25.35 25.23 9.321 3.46214 5.04381 32.06 1484.19 1024.885 25.65 25.53 9.314 3.46149 5.04388 32.06 1484.17 1024.887 25.95 25.83 9.307 3.46204 5.04570 32.07 1484.17 1024.899 26.25 26.13 9.301 3.46121 5.04528 32.07 1484.15 1024.898 26.55 26.43 9.298 3.46130 5.04588 32.07 1484.15 1024.903 26.85 26.72 9.292 3.46073 5.04600 32.07 1484.13 1024.905 27.15 27.02 9.289 3.46039 5.04600 32.07 1484.12 1024.906 27.45 27.32 9.284 3.46021 5.04636 32.08 1484.11 1024.910 27.75 27.62 9.280 3.46043 5.04737 32.08 1484.10 1024.917 28.05 27.92 9.278 3.45979 5.04672 32.08 1484.10 1024.915 28.35 28.22 9.278 3.46027 5.04738 32.08 1484.11 1024.919 28.65 28.51 9.271 3.45955 5.04730 32.08 1484.09 1024.921 28.95 28.81 9.264 3.45923 5.04788 32.08 1484.07 1024.925 29.25 29.11 9.261 3.45920 5.04828 32.08 1484.07 1024.929 29.55 29.41 9.253 3.45965 5.05013 32.10 1484.05 1024.941 29.85 29.71 9.250 3.45812 5.04831 32.08 1484.03 1024.932 30.15 30.01 9.246 3.45853 5.04957 32.09 1484.03 1024.941 30.45 30.30 9.242 3.45822 5.04974 32.09 1484.02 1024.943 30.75 30.60 9.237 3.45776 5.04975 32.09 1484.01 1024.945 31.05 30.90 9.233 3.45741 5.04989 32.09 1484.00 1024.947 31.35 31.20 9.229 3.45681 5.04960 32.09 1483.98 1024.947 31.65 31.50 9.226 3.45694 5.05010 32.09 1483.99 1024.951 31.95 31.80 9.226 3.45719 5.05051 32.09 1483.99 1024.954 32.25 32.09 9.227 3.45757 5.05090 32.10 1484.00 1024.958 32.55 32.39 9.230 3.45706 5.04981 32.09 1484.01 1024.953 32.85 32.69 9.232 3.45723 5.04963 32.09 1484.02 1024.953 33.15 32.99 9.231 3.45851 5.05171 32.10 1484.04 1024.966 33.45 33.29 9.235 3.45972 5.05296 32.11 1484.07 1024.974 33.75 33.59 9.239 3.46077 5.05391 32.12 1484.10 1024.980 34.05 33.88 9.245 3.46106 5.05337 32.12 1484.12 1024.978 34.35 34.18 9.245 3.46073 5.05288 32.11 1484.12 1024.977 34.65 34.48 9.247 3.46074 5.05254 32.11 1484.14 1024.976 34.95 34.78 9.247 3.46035 5.05200 32.11 1484.13 1024.974 35.25 35.08 9.250 3.46092 5.05238 32.11 1484.15 1024.977 35.55 35.38 9.249 3.46099 5.05276 32.11 1484.16 1024.981 35.85 35.67 9.251 3.46120 5.05275 32.11 1484.17 1024.982 36.15 35.97 9.248 3.46059 5.05233 32.11 1484.16 1024.981 36.45 36.27 9.246 3.46090 5.05307 32.11 1484.16 1024.987 36.75 36.57 9.243 3.46109 5.05375 32.12 1484.16 1024.992 37.05 36.87 9.241 3.46101 5.05389 32.12 1484.16 1024.994 37.35 37.17 9.241 3.46098 5.05379 32.12 1484.17 1024.995 37.65 37.46 9.244 3.46197 5.05480 32.12 1484.19 1025.001 37.95 37.76 9.243 3.46157 5.05441 32.12 1484.19 1025.000 38.25 38.06 9.238 3.46186 5.05554 32.13 1484.18 1025.008 38.55 38.36 9.236 3.46224 5.05639 32.13 1484.19 1025.014 38.85 38.66 9.233 3.46164 5.05606 32.13 1484.18 1025.014 39.15 38.96 9.235 3.46218 5.05645 32.13 1484.19 1025.017 39.45 39.25 9.238 3.46146 5.05497 32.12 1484.20 1025.010 39.75 39.55 9.241 3.46147 5.05463 32.12 1484.21 1025.009 40.05 39.85 9.237 3.46111 5.05463 32.12 1484.20 1025.011 40.35 40.15 9.232 3.46076 5.05493 32.12 1484.18 1025.014 40.65 40.45 9.227 3.46055 5.05533 32.12 1484.17 1025.018 40.95 40.75 9.223 3.46070 5.05609 32.13 1484.17 1025.023 41.25 41.04 9.223 3.46028 5.05556 32.13 1484.17 1025.021 41.55 41.34 9.222 3.46067 5.05625 32.13 1484.18 1025.027 41.85 41.64 9.221 3.46090 5.05663 32.13 1484.18 1025.030 42.15 41.94 9.222 3.46066 5.05624 32.13 1484.19 1025.029 42.45 42.24 9.220 3.46099 5.05695 32.13 1484.19 1025.034 42.75 42.54 9.218 3.46151 5.05796 32.14 1484.20 1025.041 43.05 42.83 9.215 3.46134 5.05819 32.14 1484.19 1025.044 43.42 43.20 9.220 3.46213 5.05857 32.15 1484.22 1025.047