*2026/01/16 10:37:46.17 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 20:41:07.000 END TIME : UTC 2025/01/23 20:41:34.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 136 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.58 2 Depth metres 0.15 40.41 3 Temperature 'deg C (ITS90)' 7.842 10.416 4 Conductivity S/m 3.0105 3.53681 5 Conductance:Specific S/m 4.57932 4.99469 6 Salinity PSS-78 28.63 31.85 7 Speed:Sound m/s 1474.1 1488.16 8 Density kg/m^3 1022.293 1024.609 $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 : 31 LATITUDE : 48 55.79620 N ! (deg min) LONGITUDE : 125 23.54170 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_204107 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 136 136 MERGEHDR 1.3 2026/01/16 10:35:38 136 136 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:37 136 136 CALIB 12.1 2026/01/16 10:37:10 136 136 CLEAN 5.3 2026/01/16 10:37:46 136 136 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:37 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:10 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 7.842 3.01837 4.59524 28.73 1474.11 1022.378 0.45 0.45 7.871 3.01050 4.57932 28.63 1474.10 1022.293 0.75 0.75 7.964 3.02386 4.58665 28.69 1474.54 1022.332 1.05 1.05 8.018 3.04205 4.60669 28.84 1474.93 1022.440 1.35 1.35 8.020 3.04627 4.61273 28.88 1475.00 1022.474 1.65 1.65 8.019 3.04408 4.60964 28.86 1474.97 1022.459 1.95 1.94 8.026 3.04789 4.61431 28.89 1475.04 1022.485 2.25 2.24 8.069 3.06449 4.63345 29.03 1475.38 1022.589 2.55 2.54 8.120 3.07987 4.64961 29.15 1475.73 1022.677 2.85 2.84 8.153 3.09143 4.66243 29.24 1475.98 1022.747 3.15 3.14 8.181 3.09727 4.66729 29.28 1476.13 1022.774 3.45 3.44 8.210 3.10112 4.66902 29.29 1476.27 1022.784 3.75 3.74 8.221 3.10144 4.66786 29.29 1476.31 1022.778 4.05 4.04 8.233 3.10175 4.66665 29.28 1476.35 1022.772 4.35 4.34 8.252 3.10214 4.66465 29.27 1476.41 1022.762 4.65 4.64 8.265 3.10190 4.66240 29.26 1476.45 1022.751 4.95 4.93 8.274 3.10215 4.66158 29.25 1476.48 1022.748 5.25 5.23 8.280 3.10421 4.66372 29.27 1476.53 1022.760 5.55 5.53 8.288 3.10592 4.66525 29.28 1476.58 1022.770 5.85 5.83 8.300 3.10737 4.66568 29.28 1476.64 1022.773 6.15 6.13 8.318 3.11139 4.66921 29.31 1476.75 1022.793 6.45 6.43 8.346 3.11546 4.67145 29.33 1476.88 1022.805 6.75 6.73 8.379 3.11986 4.67339 29.35 1477.03 1022.816 7.05 7.03 8.428 3.13167 4.68422 29.43 1477.32 1022.875 7.35 7.33 8.501 3.14382 4.69220 29.49 1477.69 1022.917 7.65 7.63 8.587 3.16563 4.71260 29.65 1478.21 1023.026 7.95 7.92 8.644 3.18135 4.72796 29.76 1478.57 1023.109 8.25 8.22 8.713 3.19589 4.73986 29.85 1478.94 1023.172 8.55 8.52 8.796 3.20872 4.74725 29.92 1479.34 1023.211 8.85 8.82 8.860 3.22163 4.75722 30.00 1479.68 1023.264 9.15 9.12 8.928 3.23531 4.76797 30.08 1480.04 1023.321 9.45 9.42 8.985 3.24496 4.77408 30.13 1480.32 1023.353 9.75 9.72 9.029 3.24933 4.77437 30.14 1480.50 1023.354 10.05 10.02 9.082 3.25422 4.77415 30.14 1480.71 1023.352 10.35 10.32 9.134 3.26135 4.77726 30.17 1480.94 1023.367 10.65 10.61 9.189 3.26868 4.78027 30.20 1481.19 1023.382 10.95 10.91 9.223 3.28161 4.79451 30.30 1481.44 1023.460 11.25 11.21 9.260 3.28527 4.79468 30.31 1481.59 1023.460 11.55 11.51 9.295 3.28793 4.79363 30.31 1481.73 1023.454 11.85 11.81 9.313 3.29339 4.79899 30.35 1481.85 1023.484 12.15 12.11 9.337 3.29599 4.79952 30.35 1481.95 1023.487 12.45 12.41 9.368 3.29967 4.80045 30.36 1482.08 1023.491 12.75 12.71 9.398 3.30327 4.80151 30.37 1482.21 1023.497 13.05 13.00 9.419 3.30654 4.80334 30.39 1482.31 1023.507 13.35 13.30 9.449 3.31041 4.80476 30.40 1482.44 1023.514 13.65 13.60 9.485 3.31448 4.80564 30.41 1482.60 1023.518 13.95 13.90 9.530 3.31873 4.80554 30.42 1482.77 1023.517 14.25 14.20 9.581 3.33893 4.82764 30.58 1483.16 1023.636 14.55 14.50 9.639 3.35674 4.84529 30.71 1483.54 1023.731 14.85 14.80 9.698 3.36873 4.85435 30.78 1483.85 1023.778 15.15 15.10 9.750 3.37129 4.85072 30.76 1484.02 1023.756 15.45 15.39 9.812 3.37657 4.84969 30.77 1484.25 1023.748 15.75 15.69 9.851 3.38751 4.85999 30.84 1484.49 1023.804 16.05 15.99 9.872 3.39053 4.86135 30.85 1484.59 1023.811 16.35 16.29 9.889 3.39414 4.86415 30.88 1484.68 1023.827 16.65 16.59 9.905 3.39591 4.86450 30.88 1484.75 1023.829 16.95 16.89 9.921 3.39867 4.86626 30.89 1484.83 1023.839 17.25 17.19 9.936 3.40022 4.86642 30.90 1484.89 1023.840 17.55 17.49 9.943 3.40210 4.86803 30.91 1484.94 1023.850 17.85 17.78 9.945 3.40324 4.86940 30.92 1484.96 1023.858 18.15 18.08 9.946 3.40286 4.86869 30.91 1484.97 1023.856 18.45 18.38 9.948 3.40324 4.86900 30.92 1484.98 1023.858 18.75 18.68 9.952 3.40505 4.87103 30.93 1485.02 1023.871 19.05 18.98 9.960 3.40601 4.87129 30.93 1485.05 1023.873 19.35 19.28 9.968 3.41088 4.87712 30.98 1485.14 1023.906 19.65 19.58 9.978 3.41382 4.87997 31.00 1485.21 1023.922 19.95 19.88 9.986 3.41620 4.88227 31.01 1485.26 1023.935 20.25 20.17 9.996 3.41875 4.88453 31.03 1485.32 1023.948 20.55 20.47 10.008 3.42170 4.88699 31.05 1485.39 1023.962 20.85 20.77 10.015 3.42472 4.89036 31.07 1485.45 1023.982 21.15 21.07 10.022 3.42670 4.89226 31.09 1485.50 1023.993 21.45 21.37 10.031 3.42750 4.89203 31.09 1485.54 1023.992 21.75 21.67 10.038 3.42834 4.89235 31.09 1485.57 1023.995 22.05 21.97 10.042 3.42918 4.89302 31.10 1485.60 1023.999 22.35 22.26 10.040 3.42905 4.89303 31.10 1485.60 1024.001 22.65 22.56 10.036 3.42813 4.89228 31.09 1485.58 1023.998 22.95 22.86 10.027 3.42763 4.89291 31.09 1485.55 1024.004 23.25 23.16 10.025 3.42851 4.89432 31.10 1485.57 1024.013 23.55 23.46 10.030 3.42862 4.89382 31.10 1485.58 1024.011 23.85 23.76 10.034 3.42896 4.89376 31.10 1485.60 1024.012 24.15 24.06 10.031 3.42766 4.89237 31.09 1485.58 1024.005 24.45 24.35 10.025 3.42883 4.89489 31.11 1485.59 1024.021 24.75 24.65 10.036 3.42967 4.89452 31.11 1485.63 1024.020 25.05 24.95 10.049 3.43102 4.89457 31.11 1485.69 1024.020 25.35 25.25 10.063 3.43269 4.89507 31.11 1485.75 1024.023 25.65 25.55 10.074 3.43528 4.89726 31.13 1485.81 1024.036 25.95 25.85 10.080 3.44076 4.90413 31.18 1485.90 1024.074 26.25 26.15 10.094 3.44627 4.91000 31.22 1486.01 1024.107 26.55 26.45 10.113 3.45283 4.91674 31.27 1486.14 1024.144 26.85 26.74 10.128 3.45591 4.91909 31.29 1486.22 1024.157 27.15 27.04 10.148 3.45868 4.92020 31.30 1486.31 1024.163 27.45 27.34 10.162 3.46519 4.92746 31.35 1486.43 1024.204 27.75 27.64 10.176 3.46949 4.93167 31.38 1486.52 1024.227 28.05 27.94 10.184 3.47175 4.93366 31.40 1486.58 1024.239 28.35 28.24 10.189 3.47182 4.93305 31.39 1486.60 1024.236 28.65 28.54 10.196 3.47234 4.93287 31.39 1486.62 1024.236 28.95 28.83 10.194 3.47364 4.93502 31.41 1486.64 1024.249 29.25 29.13 10.202 3.47563 4.93663 31.42 1486.69 1024.259 29.55 29.43 10.206 3.47728 4.93851 31.43 1486.72 1024.270 29.85 29.73 10.202 3.47793 4.94000 31.44 1486.73 1024.280 30.15 30.03 10.212 3.47893 4.93996 31.45 1486.77 1024.280 30.45 30.33 10.211 3.47876 4.93989 31.44 1486.77 1024.281 30.75 30.63 10.218 3.48111 4.94217 31.46 1486.82 1024.295 31.05 30.92 10.227 3.48354 4.94445 31.48 1486.88 1024.308 31.35 31.22 10.235 3.48553 4.94616 31.49 1486.93 1024.318 31.65 31.52 10.238 3.48577 4.94597 31.49 1486.94 1024.318 31.95 31.82 10.243 3.48702 4.94707 31.50 1486.98 1024.325 32.25 32.12 10.250 3.48844 4.94812 31.51 1487.02 1024.331 32.55 32.42 10.258 3.49036 4.94979 31.52 1487.06 1024.341 32.85 32.72 10.270 3.49511 4.95477 31.56 1487.16 1024.369 33.15 33.01 10.279 3.50164 4.96281 31.61 1487.26 1024.414 33.45 33.31 10.289 3.50457 4.96559 31.63 1487.33 1024.430 33.75 33.61 10.303 3.50994 4.97121 31.68 1487.44 1024.461 34.05 33.91 10.315 3.51315 4.97409 31.70 1487.51 1024.478 34.35 34.21 10.323 3.51402 4.97414 31.70 1487.55 1024.479 34.65 34.51 10.330 3.51477 4.97422 31.70 1487.58 1024.480 34.95 34.81 10.335 3.51544 4.97439 31.70 1487.60 1024.482 35.25 35.10 10.338 3.51556 4.97419 31.70 1487.62 1024.481 35.55 35.40 10.339 3.51594 4.97463 31.70 1487.63 1024.485 35.85 35.70 10.339 3.51615 4.97484 31.71 1487.64 1024.488 36.15 36.00 10.340 3.51639 4.97504 31.71 1487.65 1024.490 36.45 36.30 10.339 3.51608 4.97482 31.71 1487.64 1024.490 36.75 36.60 10.332 3.51598 4.97569 31.71 1487.63 1024.497 37.05 36.89 10.335 3.51642 4.97583 31.71 1487.65 1024.498 37.35 37.19 10.338 3.51736 4.97680 31.72 1487.67 1024.505 37.65 37.49 10.340 3.52000 4.98015 31.74 1487.71 1024.524 37.95 37.79 10.348 3.52051 4.97973 31.74 1487.75 1024.523 38.25 38.09 10.353 3.52126 4.98019 31.74 1487.77 1024.526 38.55 38.39 10.358 3.52597 4.98606 31.79 1487.85 1024.559 38.85 38.69 10.372 3.52927 4.98878 31.81 1487.93 1024.575 39.15 38.98 10.384 3.53347 4.99296 31.84 1488.01 1024.598 39.45 39.28 10.394 3.53504 4.99383 31.85 1488.06 1024.603 39.75 39.58 10.406 3.53681 4.99469 31.85 1488.12 1024.609 40.05 39.88 10.414 3.53636 4.99287 31.84 1488.14 1024.599 40.35 40.18 10.414 3.53645 4.99305 31.84 1488.14 1024.602 40.58 40.41 10.416 3.53657 4.99283 31.84 1488.16 1024.601