*2026/01/16 09:57:54.34 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 00:10:09.000 END TIME : UTC 2024/09/04 00:10:35.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 135 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 40.33 2 Depth metres 0.15 40.15 3 Temperature 'deg C (ITS90)' 9.624 17.973 4 Conductivity S/m 3.49496 3.83882 5 Conductance:Specific S/m 4.29159 5.04827 6 Salinity PSS-78 27.44 32.13 7 Speed:Sound m/s 1485.63 1507.33 8 Density kg/m^3 1019.517 1024.957 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 232 LATITUDE : 48 57.47200 N ! (deg min) LONGITUDE : 125 2.05610 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_001009 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:05 135 135 MERGEHDR 1.3 2026/01/16 09:54:04 135 135 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:21 135 135 CALIB 12.1 2026/01/16 09:56:55 135 135 CLEAN 5.3 2026/01/16 09:57:54 135 135 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:21 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 09:57:46 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 17.973 3.70793 4.31428 27.61 1507.33 1019.628 0.45 0.45 17.921 3.68401 4.29159 27.44 1507.00 1019.517 0.75 0.75 17.901 3.68336 4.29285 27.45 1506.95 1019.529 1.05 1.05 17.862 3.70057 4.31680 27.62 1507.03 1019.668 1.35 1.35 17.770 3.71715 4.34547 27.82 1506.98 1019.843 1.65 1.65 17.632 3.72104 4.36419 27.95 1506.71 1019.974 1.95 1.95 17.501 3.72717 4.38483 28.09 1506.49 1020.113 2.25 2.25 17.333 3.78614 4.47187 28.70 1506.68 1020.621 2.55 2.55 17.061 3.83472 4.55857 29.31 1506.55 1021.149 2.85 2.85 16.756 3.83882 4.59674 29.56 1505.91 1021.416 3.15 3.15 16.470 3.81956 4.60517 29.61 1505.09 1021.517 3.45 3.45 15.964 3.79607 4.63345 29.78 1503.72 1021.763 3.75 3.75 15.527 3.77930 4.66272 29.97 1502.56 1022.000 4.05 4.05 14.611 3.73683 4.71686 30.29 1500.01 1022.446 4.35 4.34 14.008 3.71225 4.75829 30.54 1498.34 1022.764 4.65 4.64 13.577 3.69711 4.79190 30.75 1497.16 1023.010 4.95 4.94 13.265 3.68653 4.81712 30.90 1496.31 1023.192 5.25 5.24 12.918 3.67495 4.84586 31.08 1495.36 1023.395 5.55 5.54 12.607 3.66022 4.86638 31.19 1494.45 1023.547 5.85 5.84 12.261 3.64651 4.89316 31.35 1493.46 1023.735 6.15 6.14 12.036 3.63656 4.90949 31.44 1492.80 1023.851 6.45 6.44 11.947 3.63498 4.91918 31.50 1492.57 1023.915 6.75 6.73 11.820 3.62765 4.92624 31.54 1492.18 1023.968 7.05 7.03 11.761 3.62469 4.93005 31.56 1492.01 1023.997 7.35 7.33 11.685 3.62227 4.93698 31.60 1491.80 1024.044 7.65 7.63 11.636 3.62096 4.94181 31.63 1491.67 1024.076 7.95 7.93 11.600 3.61502 4.93849 31.60 1491.52 1024.063 8.25 8.23 11.570 3.61180 4.93818 31.60 1491.41 1024.065 8.55 8.53 11.516 3.61193 4.94570 31.65 1491.28 1024.113 8.85 8.83 11.495 3.61023 4.94625 31.65 1491.21 1024.120 9.15 9.12 11.437 3.60683 4.94943 31.66 1491.04 1024.144 9.45 9.42 11.405 3.60469 4.95088 31.67 1490.94 1024.156 9.75 9.72 11.351 3.60274 4.95544 31.70 1490.79 1024.188 10.05 10.02 11.336 3.60037 4.95428 31.69 1490.73 1024.184 10.35 10.32 11.294 3.59992 4.95935 31.72 1490.62 1024.217 10.65 10.62 11.286 3.59912 4.95933 31.72 1490.60 1024.219 10.95 10.92 11.258 3.59797 4.96167 31.73 1490.52 1024.236 11.25 11.21 11.249 3.59569 4.95969 31.72 1490.48 1024.227 11.55 11.51 11.213 3.59527 4.96410 31.74 1490.39 1024.256 11.85 11.81 11.193 3.59528 4.96680 31.76 1490.34 1024.274 12.15 12.11 11.147 3.59050 4.96658 31.75 1490.17 1024.278 12.45 12.41 11.140 3.58986 4.96665 31.75 1490.15 1024.280 12.75 12.71 11.122 3.58674 4.96478 31.74 1490.08 1024.272 13.05 13.01 11.102 3.58548 4.96580 31.74 1490.02 1024.281 13.35 13.30 11.081 3.58402 4.96669 31.75 1489.95 1024.289 13.65 13.60 11.063 3.58364 4.96857 31.76 1489.91 1024.302 13.95 13.90 11.049 3.58221 4.96850 31.75 1489.86 1024.304 14.25 14.20 11.035 3.58220 4.97050 31.77 1489.83 1024.318 14.55 14.50 11.024 3.58205 4.97172 31.77 1489.81 1024.327 14.85 14.80 11.018 3.58204 4.97252 31.78 1489.80 1024.333 15.15 15.10 10.985 3.57513 4.96755 31.74 1489.64 1024.310 15.45 15.39 10.903 3.57302 4.97597 31.79 1489.41 1024.364 15.75 15.69 10.833 3.56977 4.98115 31.82 1489.20 1024.400 16.05 15.99 10.796 3.56755 4.98310 31.83 1489.09 1024.415 16.35 16.29 10.747 3.56311 4.98384 31.83 1488.92 1024.424 16.65 16.59 10.736 3.56168 4.98333 31.82 1488.88 1024.424 16.95 16.89 10.719 3.56085 4.98453 31.83 1488.83 1024.433 17.25 17.19 10.701 3.55998 4.98585 31.84 1488.78 1024.443 17.55 17.48 10.628 3.55694 4.99172 31.87 1488.57 1024.482 17.85 17.78 10.629 3.55446 4.98820 31.84 1488.54 1024.464 18.15 18.08 10.512 3.54365 4.98932 31.84 1488.12 1024.480 18.45 18.38 10.453 3.54073 4.99356 31.86 1487.94 1024.509 18.75 18.68 10.411 3.54010 4.99863 31.89 1487.84 1024.542 19.05 18.98 10.392 3.53941 5.00033 31.90 1487.78 1024.554 19.35 19.27 10.377 3.53843 5.00110 31.90 1487.74 1024.560 19.65 19.57 10.365 3.53898 5.00346 31.92 1487.72 1024.575 19.95 19.87 10.370 3.53909 5.00301 31.92 1487.74 1024.574 20.25 20.17 10.353 3.53873 5.00478 31.93 1487.70 1024.586 20.55 20.47 10.351 3.53792 5.00400 31.92 1487.69 1024.583 20.85 20.77 10.349 3.53861 5.00526 31.93 1487.69 1024.592 21.15 21.07 10.348 3.53837 5.00500 31.93 1487.70 1024.591 21.45 21.36 10.344 3.53887 5.00626 31.93 1487.70 1024.600 21.75 21.66 10.340 3.53824 5.00603 31.93 1487.68 1024.600 22.05 21.96 10.327 3.53810 5.00771 31.94 1487.65 1024.612 22.35 22.26 10.322 3.53804 5.00832 31.95 1487.64 1024.617 22.65 22.56 10.312 3.53718 5.00844 31.95 1487.61 1024.619 22.95 22.86 10.305 3.53725 5.00952 31.95 1487.60 1024.627 23.25 23.15 10.290 3.53657 5.01069 31.96 1487.56 1024.636 23.55 23.45 10.282 3.53571 5.01065 31.96 1487.53 1024.637 23.85 23.75 10.270 3.53462 5.01077 31.96 1487.50 1024.640 24.15 24.05 10.258 3.53396 5.01161 31.96 1487.46 1024.647 24.45 24.35 10.238 3.53086 5.00997 31.95 1487.38 1024.641 24.75 24.65 10.221 3.53022 5.01150 31.96 1487.33 1024.651 25.05 24.95 10.211 3.53019 5.01295 31.96 1487.31 1024.661 25.35 25.24 10.205 3.52991 5.01332 31.97 1487.30 1024.665 25.65 25.54 10.200 3.53016 5.01438 31.97 1487.29 1024.672 25.95 25.84 10.197 3.52983 5.01437 31.97 1487.29 1024.674 26.25 26.14 10.196 3.52811 5.01209 31.96 1487.27 1024.663 26.55 26.44 10.179 3.52725 5.01325 31.96 1487.22 1024.671 26.85 26.74 10.164 3.52610 5.01379 31.96 1487.17 1024.677 27.15 27.03 10.156 3.52559 5.01420 31.96 1487.15 1024.681 27.45 27.33 10.148 3.52551 5.01529 31.97 1487.13 1024.689 27.75 27.63 10.141 3.52569 5.01645 31.98 1487.12 1024.697 28.05 27.93 10.128 3.52523 5.01764 31.99 1487.09 1024.705 28.35 28.23 10.126 3.52467 5.01718 31.98 1487.08 1024.704 28.65 28.53 10.100 3.52310 5.01863 31.99 1487.00 1024.715 28.95 28.83 10.057 3.52140 5.02243 32.01 1486.87 1024.740 29.25 29.12 10.000 3.51489 5.02133 31.99 1486.65 1024.739 29.55 29.42 9.966 3.51220 5.02236 32.00 1486.54 1024.748 29.85 29.72 9.900 3.50919 5.02744 32.02 1486.34 1024.782 30.15 30.02 9.869 3.50745 5.02952 32.03 1486.24 1024.796 30.45 30.32 9.841 3.50622 5.03172 32.05 1486.16 1024.812 30.75 30.62 9.826 3.50581 5.03328 32.06 1486.12 1024.822 31.05 30.91 9.808 3.50637 5.03670 32.08 1486.09 1024.844 31.35 31.21 9.810 3.50526 5.03479 32.06 1486.09 1024.834 31.65 31.51 9.801 3.50471 5.03534 32.07 1486.06 1024.839 31.95 31.81 9.799 3.50534 5.03658 32.07 1486.07 1024.847 32.25 32.11 9.793 3.50472 5.03657 32.07 1486.05 1024.849 32.55 32.41 9.788 3.50477 5.03738 32.08 1486.04 1024.855 32.85 32.71 9.786 3.50451 5.03727 32.08 1486.04 1024.856 33.15 33.00 9.780 3.50383 5.03708 32.08 1486.02 1024.856 33.45 33.30 9.777 3.50399 5.03778 32.08 1486.02 1024.861 33.75 33.60 9.780 3.50413 5.03762 32.08 1486.03 1024.862 34.05 33.90 9.779 3.50423 5.03792 32.08 1486.03 1024.865 34.35 34.20 9.775 3.50335 5.03722 32.07 1486.02 1024.862 34.65 34.50 9.769 3.50343 5.03809 32.08 1486.01 1024.869 34.95 34.79 9.767 3.50344 5.03839 32.08 1486.01 1024.872 35.25 35.09 9.763 3.50377 5.03959 32.09 1486.01 1024.880 35.55 35.39 9.762 3.50410 5.04010 32.09 1486.02 1024.884 35.85 35.69 9.757 3.50301 5.03926 32.09 1485.99 1024.881 36.15 35.99 9.757 3.50387 5.04054 32.10 1486.01 1024.889 36.45 36.29 9.761 3.50334 5.03919 32.09 1486.02 1024.883 36.75 36.58 9.760 3.50273 5.03842 32.08 1486.01 1024.880 37.05 36.88 9.750 3.50232 5.03933 32.09 1485.99 1024.887 37.35 37.18 9.738 3.50326 5.04243 32.11 1485.97 1024.906 37.65 37.48 9.732 3.50246 5.04211 32.10 1485.95 1024.906 37.95 37.78 9.731 3.50376 5.04419 32.12 1485.97 1024.918 38.25 38.08 9.726 3.50306 5.04382 32.11 1485.95 1024.918 38.55 38.37 9.718 3.50218 5.04370 32.11 1485.93 1024.919 38.85 38.67 9.709 3.50202 5.04484 32.12 1485.91 1024.927 39.15 38.97 9.702 3.50056 5.04381 32.11 1485.87 1024.923 39.45 39.27 9.689 3.49798 5.04196 32.09 1485.81 1024.915 39.75 39.57 9.664 3.49496 5.04126 32.09 1485.72 1024.914 40.05 39.87 9.627 3.49532 5.04707 32.12 1485.63 1024.949 40.33 40.15 9.624 3.49579 5.04827 32.13 1485.63 1024.957