*2026/01/16 10:37:57.27 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/06/26 17:24:28.000 END TIME : UTC 2025/06/26 17:24:57.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 148 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 44.23 2 Depth metres 0.15 44.03 3 Temperature 'deg C (ITS90)' 8.852 15.462 4 Conductivity S/m 3.42968 3.78101 5 Conductance:Specific S/m 4.66343 5.06571 6 Salinity PSS-78 29.97 32.14 7 Speed:Sound m/s 1482.87 1502.3 8 Density kg/m^3 1022 1025.106 $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 : 203 LATITUDE : 48 55.96770 N ! (deg min) LONGITUDE : 125 23.58040 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250626_172428 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:33 148 148 MERGEHDR 1.3 2026/01/16 10:35:47 148 148 HDREDIT2 3.2 2026/01/16 10:36:18 ? ? REMOVECH 8.2 2026/01/16 10:36:50 148 148 CALIB 12.1 2026/01/16 10:37:20 148 148 CLEAN 5.3 2026/01/16 10:37:57 148 148 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:18 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 10:36:50 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:20 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 15.462 3.77383 4.66343 29.97 1502.30 1022.000 0.45 0.45 15.435 3.77152 4.66371 29.97 1502.22 1022.007 0.75 0.75 15.405 3.77175 4.66738 29.99 1502.16 1022.033 1.05 1.05 15.385 3.77414 4.67276 30.03 1502.14 1022.068 1.35 1.35 15.346 3.77372 4.67666 30.06 1502.05 1022.097 1.65 1.65 15.304 3.77554 4.68380 30.10 1501.98 1022.144 1.95 1.94 15.292 3.77668 4.68658 30.12 1501.97 1022.162 2.25 2.24 15.307 3.77968 4.68863 30.14 1502.04 1022.173 2.55 2.54 15.321 3.78101 4.68861 30.14 1502.09 1022.171 2.85 2.84 15.295 3.77864 4.68870 30.14 1502.01 1022.177 3.15 3.14 15.195 3.77692 4.69827 30.20 1501.76 1022.248 3.45 3.44 15.043 3.76980 4.70719 30.25 1501.35 1022.322 3.75 3.74 14.785 3.75643 4.72092 30.33 1500.62 1022.440 4.05 4.04 14.535 3.72245 4.70785 30.22 1499.68 1022.408 4.35 4.34 14.291 3.70376 4.71325 30.24 1498.92 1022.475 4.65 4.64 14.137 3.69516 4.72075 30.28 1498.47 1022.540 4.95 4.94 13.990 3.69021 4.73230 30.36 1498.07 1022.626 5.25 5.24 13.746 3.67750 4.74564 30.43 1497.36 1022.735 5.55 5.53 13.545 3.67521 4.76739 30.57 1496.87 1022.883 5.85 5.83 13.375 3.67095 4.78302 30.67 1496.42 1022.993 6.15 6.13 13.233 3.65352 4.77797 30.62 1495.89 1022.985 6.45 6.43 13.062 3.64963 4.79433 30.72 1495.44 1023.098 6.75 6.73 12.914 3.64055 4.80106 30.76 1494.99 1023.155 7.05 7.03 12.765 3.62958 4.80552 30.77 1494.51 1023.199 7.35 7.33 12.675 3.62374 4.80921 30.79 1494.23 1023.231 7.65 7.63 12.615 3.62081 4.81305 30.81 1494.06 1023.261 7.95 7.93 12.509 3.61788 4.82266 30.87 1493.77 1023.327 8.25 8.22 12.383 3.61375 4.83338 30.94 1493.43 1023.402 8.55 8.52 12.238 3.60374 4.83880 30.96 1492.96 1023.449 8.85 8.82 12.130 3.58725 4.83069 30.89 1492.51 1023.418 9.15 9.12 12.015 3.58088 4.83706 30.93 1492.16 1023.466 9.45 9.42 11.865 3.57282 4.84581 30.97 1491.71 1023.531 9.75 9.72 11.778 3.56437 4.84575 30.96 1491.40 1023.541 10.05 10.02 11.727 3.55932 4.84570 30.96 1491.22 1023.547 10.35 10.32 11.667 3.56056 4.85532 31.02 1491.09 1023.608 10.65 10.61 11.614 3.56002 4.86157 31.06 1490.95 1023.649 10.95 10.91 11.581 3.56039 4.86650 31.09 1490.88 1023.680 11.25 11.21 11.549 3.56031 4.87054 31.12 1490.81 1023.707 11.55 11.51 11.505 3.55893 4.87461 31.14 1490.68 1023.735 11.85 11.81 11.422 3.55152 4.87547 31.14 1490.40 1023.749 12.15 12.11 11.334 3.54764 4.88199 31.17 1490.14 1023.794 12.45 12.41 11.238 3.54232 4.88754 31.20 1489.84 1023.835 12.75 12.71 11.175 3.53376 4.88426 31.17 1489.59 1023.824 13.05 13.00 11.129 3.52932 4.88432 31.17 1489.42 1023.829 13.35 13.30 11.042 3.52738 4.89341 31.22 1489.19 1023.888 13.65 13.60 10.958 3.52653 4.90367 31.28 1488.97 1023.953 13.95 13.90 10.898 3.52239 4.90609 31.29 1488.77 1023.973 14.25 14.20 10.825 3.51719 4.90888 31.31 1488.53 1023.996 14.55 14.50 10.704 3.51175 4.91793 31.36 1488.17 1024.057 14.85 14.80 10.612 3.50841 4.92590 31.40 1487.90 1024.109 15.15 15.10 10.572 3.50297 4.92381 31.38 1487.74 1024.102 15.45 15.39 10.546 3.50037 4.92369 31.38 1487.65 1024.104 15.75 15.69 10.515 3.49899 4.92603 31.39 1487.56 1024.121 16.05 15.99 10.475 3.49825 4.93059 31.42 1487.45 1024.150 16.35 16.29 10.432 3.49774 4.93584 31.45 1487.34 1024.184 16.65 16.59 10.399 3.49599 4.93796 31.46 1487.24 1024.199 16.95 16.89 10.377 3.49437 4.93872 31.46 1487.17 1024.206 17.25 17.19 10.354 3.49347 4.94073 31.47 1487.10 1024.220 17.55 17.48 10.331 3.49297 4.94314 31.49 1487.04 1024.236 17.85 17.78 10.302 3.49205 4.94604 31.50 1486.96 1024.256 18.15 18.08 10.271 3.49087 4.94869 31.52 1486.87 1024.274 18.45 18.38 10.257 3.48945 4.94859 31.52 1486.83 1024.275 18.75 18.68 10.244 3.48803 4.94838 31.51 1486.78 1024.276 19.05 18.98 10.228 3.48695 4.94916 31.52 1486.73 1024.283 19.35 19.28 10.210 3.48715 4.95191 31.53 1486.69 1024.301 19.65 19.57 10.201 3.48659 4.95234 31.54 1486.67 1024.305 19.95 19.87 10.189 3.48636 4.95370 31.54 1486.64 1024.315 20.25 20.17 10.178 3.48631 4.95529 31.55 1486.61 1024.325 20.55 20.47 10.163 3.48569 4.95651 31.56 1486.57 1024.334 20.85 20.77 10.132 3.48458 4.95933 31.58 1486.48 1024.353 21.15 21.07 10.103 3.48120 4.95852 31.57 1486.38 1024.352 21.45 21.37 10.073 3.47962 4.96053 31.58 1486.28 1024.366 21.75 21.66 10.046 3.47927 4.96385 31.60 1486.22 1024.388 22.05 21.96 10.024 3.47859 4.96596 31.61 1486.16 1024.402 22.35 22.26 10.001 3.47770 4.96800 31.62 1486.09 1024.416 22.65 22.56 9.976 3.47686 4.97040 31.63 1486.02 1024.432 22.95 22.86 9.945 3.47554 4.97280 31.65 1485.93 1024.448 23.25 23.16 9.909 3.47386 4.97555 31.66 1485.82 1024.467 23.55 23.46 9.887 3.47252 4.97684 31.67 1485.75 1024.477 23.85 23.75 9.862 3.47177 4.97926 31.68 1485.69 1024.493 24.15 24.05 9.829 3.46899 4.97996 31.68 1485.57 1024.500 24.45 24.35 9.781 3.46698 4.98406 31.70 1485.43 1024.527 24.75 24.65 9.756 3.46556 4.98563 31.71 1485.35 1024.538 25.05 24.95 9.743 3.46633 4.98852 31.73 1485.33 1024.556 25.35 25.25 9.733 3.46534 4.98859 31.73 1485.30 1024.559 25.65 25.54 9.720 3.46477 4.98958 31.73 1485.26 1024.566 25.95 25.84 9.709 3.46453 4.99087 31.74 1485.23 1024.575 26.25 26.14 9.695 3.46413 4.99226 31.75 1485.20 1024.585 26.55 26.44 9.680 3.46394 4.99409 31.76 1485.16 1024.597 26.85 26.74 9.669 3.46300 4.99437 31.76 1485.13 1024.600 27.15 27.04 9.660 3.46267 4.99526 31.77 1485.10 1024.607 27.45 27.34 9.652 3.46256 4.99625 31.77 1485.09 1024.614 27.75 27.63 9.641 3.46188 4.99679 31.77 1485.06 1024.619 28.05 27.93 9.637 3.46087 4.99590 31.77 1485.04 1024.616 28.35 28.23 9.632 3.46043 4.99595 31.77 1485.03 1024.618 28.65 28.53 9.620 3.45964 4.99666 31.77 1484.99 1024.623 28.95 28.83 9.600 3.45846 4.99782 31.78 1484.93 1024.632 29.25 29.13 9.576 3.45748 4.99984 31.79 1484.86 1024.646 29.55 29.42 9.557 3.45611 5.00055 31.79 1484.80 1024.652 29.85 29.72 9.543 3.45527 5.00140 31.79 1484.75 1024.659 30.15 30.02 9.517 3.45445 5.00397 31.81 1484.68 1024.676 30.45 30.32 9.486 3.45388 5.00761 31.83 1484.60 1024.699 30.75 30.62 9.463 3.45307 5.00976 31.84 1484.54 1024.713 31.05 30.92 9.434 3.45065 5.01049 31.84 1484.43 1024.720 31.35 31.22 9.417 3.44985 5.01191 31.85 1484.38 1024.730 31.65 31.51 9.406 3.44937 5.01275 31.85 1484.35 1024.736 31.95 31.81 9.398 3.44847 5.01258 31.85 1484.33 1024.737 32.25 32.11 9.384 3.44797 5.01395 31.86 1484.29 1024.746 32.55 32.41 9.368 3.44765 5.01584 31.87 1484.25 1024.759 32.85 32.71 9.360 3.44818 5.01770 31.88 1484.24 1024.771 33.15 33.01 9.357 3.44730 5.01695 31.88 1484.22 1024.768 33.45 33.30 9.355 3.44770 5.01770 31.88 1484.23 1024.774 33.75 33.60 9.354 3.44814 5.01853 31.89 1484.24 1024.779 34.05 33.90 9.353 3.44781 5.01818 31.88 1484.24 1024.779 34.35 34.20 9.350 3.44702 5.01744 31.88 1484.22 1024.776 34.65 34.50 9.346 3.44767 5.01909 31.89 1484.22 1024.787 34.95 34.80 9.335 3.44697 5.01962 31.89 1484.19 1024.792 35.25 35.10 9.323 3.44623 5.02034 31.89 1484.16 1024.797 35.55 35.39 9.314 3.44582 5.02097 31.90 1484.13 1024.802 35.85 35.69 9.308 3.44546 5.02136 31.90 1484.12 1024.806 36.15 35.99 9.302 3.44558 5.02235 31.90 1484.11 1024.813 36.45 36.29 9.295 3.44492 5.02245 31.90 1484.09 1024.815 36.75 36.59 9.270 3.44428 5.02525 31.92 1484.02 1024.833 37.05 36.89 9.227 3.44228 5.02856 31.94 1483.89 1024.855 37.35 37.18 9.176 3.43768 5.02937 31.94 1483.70 1024.863 37.65 37.48 9.129 3.43633 5.03438 31.96 1483.57 1024.894 37.95 37.78 9.099 3.43609 5.03837 31.99 1483.49 1024.918 38.25 38.08 9.084 3.43581 5.04021 32.00 1483.45 1024.931 38.55 38.38 9.075 3.43529 5.04079 32.00 1483.43 1024.935 38.85 38.68 9.068 3.43583 5.04264 32.01 1483.42 1024.947 39.15 38.97 9.060 3.43528 5.04306 32.01 1483.40 1024.951 39.45 39.27 9.051 3.43503 5.04392 32.02 1483.38 1024.957 39.75 39.57 9.049 3.43523 5.04457 32.02 1483.38 1024.962 40.05 39.87 9.047 3.43545 5.04522 32.03 1483.38 1024.967 40.35 40.17 9.047 3.43439 5.04355 32.02 1483.37 1024.959 40.65 40.47 9.043 3.43437 5.04414 32.02 1483.37 1024.964 40.95 40.76 9.039 3.43486 5.04547 32.03 1483.37 1024.973 41.25 41.06 9.038 3.43491 5.04566 32.03 1483.37 1024.975 41.55 41.36 9.038 3.43412 5.04459 32.02 1483.36 1024.971 41.85 41.66 9.036 3.43463 5.04553 32.03 1483.37 1024.977 42.15 41.96 9.035 3.43483 5.04600 32.03 1483.38 1024.981 42.45 42.26 9.034 3.43448 5.04568 32.03 1483.37 1024.980 42.75 42.56 9.015 3.43219 5.04508 32.02 1483.30 1024.979 43.05 42.85 8.952 3.43055 5.05208 32.06 1483.12 1025.022 43.35 43.15 8.908 3.43060 5.05875 32.10 1483.01 1025.061 43.65 43.45 8.880 3.42988 5.06182 32.12 1482.93 1025.081 43.95 43.75 8.854 3.42968 5.06534 32.14 1482.87 1025.102 44.23 44.03 8.852 3.42971 5.06571 32.14 1482.87 1025.106