*2026/01/16 10:37:54.24 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/05/27 16:18:20.000 END TIME : UTC 2025/05/27 16:18:40.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 101 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 30.21 2 Depth metres 0.15 30.12 3 Temperature 'deg C (ITS90)' 9.93 14.97 4 Conductivity S/m 1.69466 3.53586 5 Conductance:Specific S/m 2.12576 4.94916 6 Salinity PSS-78 12.64 31.48 7 Speed:Sound m/s 1480.28 1493.55 8 Density kg/m^3 1008.829 1024.348 $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 : 151 LATITUDE : 49 47.14510 N ! (deg min) LONGITUDE : 126 27.09220 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250527_161820 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:30 101 101 MERGEHDR 1.3 2026/01/16 10:35:44 101 101 HDREDIT2 3.2 2026/01/16 10:36:15 ? ? REMOVECH 8.2 2026/01/16 10:36:41 101 101 CALIB 12.1 2026/01/16 10:37:17 101 101 CLEAN 5.3 2026/01/16 10:37:54 101 101 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:15 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 10:36:41 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:17 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 14.860 1.69466 2.12576 12.64 1480.28 1008.829 0.45 0.45 14.970 2.26834 2.83754 17.32 1486.08 1012.396 0.75 0.76 14.779 2.47522 3.11118 19.15 1487.57 1013.835 1.05 1.06 14.643 2.51669 3.17419 19.57 1487.60 1014.184 1.35 1.36 14.486 2.55822 3.23942 20.00 1487.59 1014.549 1.65 1.66 14.420 2.58945 3.28447 20.31 1487.72 1014.795 1.95 1.96 14.571 2.68612 3.39406 21.06 1489.11 1015.345 2.25 2.26 14.677 2.74186 3.45521 21.48 1489.96 1015.650 2.55 2.56 14.727 2.85097 3.58821 22.39 1491.18 1016.343 2.85 2.86 14.637 2.90988 3.67069 22.96 1491.54 1016.794 3.15 3.17 14.521 3.01298 3.81183 23.92 1492.29 1017.561 3.45 3.47 14.336 3.11338 3.95743 24.92 1492.85 1018.367 3.75 3.77 13.981 3.22137 4.13194 26.12 1493.07 1019.357 4.05 4.07 13.786 3.28682 4.23714 26.84 1493.27 1019.953 4.35 4.37 13.631 3.33602 4.31780 27.40 1493.40 1020.412 4.65 4.66 13.422 3.39370 4.41634 28.07 1493.50 1020.976 4.95 4.96 13.254 3.43630 4.49137 28.59 1493.55 1021.408 5.25 5.26 13.140 3.45984 4.53570 28.89 1493.53 1021.666 5.55 5.56 13.025 3.48525 4.58278 29.22 1493.53 1021.939 5.85 5.86 12.829 3.49414 4.61840 29.45 1493.14 1022.159 6.15 6.16 12.645 3.49976 4.64839 29.65 1492.76 1022.347 6.45 6.46 12.490 3.51240 4.68447 29.89 1492.52 1022.564 6.75 6.76 12.350 3.52360 4.71696 30.11 1492.30 1022.759 7.05 7.06 12.184 3.52428 4.73895 30.25 1491.90 1022.900 7.35 7.36 12.075 3.53011 4.76077 30.39 1491.70 1023.033 7.65 7.66 11.994 3.53315 4.77525 30.49 1491.54 1023.122 7.95 7.96 11.943 3.53586 4.78552 30.55 1491.45 1023.185 8.25 8.25 11.813 3.53489 4.80112 30.65 1491.12 1023.286 8.55 8.55 11.660 3.53442 4.82057 30.77 1490.74 1023.410 8.85 8.85 11.567 3.53331 4.83122 30.84 1490.50 1023.479 9.15 9.15 11.471 3.52620 4.83432 30.85 1490.18 1023.506 9.45 9.45 11.394 3.52287 4.83997 30.88 1489.95 1023.546 9.75 9.75 11.297 3.51454 4.84139 30.88 1489.62 1023.564 10.05 10.05 11.195 3.51179 4.85121 30.94 1489.33 1023.629 10.35 10.35 11.106 3.50862 4.85882 30.98 1489.08 1023.680 10.65 10.64 11.038 3.50570 4.86384 31.01 1488.88 1023.714 10.95 10.94 10.979 3.50425 4.86980 31.05 1488.72 1023.754 11.25 11.24 10.921 3.49981 4.87152 31.05 1488.52 1023.769 11.55 11.54 10.889 3.49780 4.87307 31.06 1488.42 1023.782 11.85 11.84 10.851 3.49503 4.87443 31.07 1488.30 1023.794 12.15 12.14 10.806 3.49208 4.87633 31.07 1488.15 1023.809 12.45 12.44 10.779 3.48958 4.87652 31.07 1488.06 1023.814 12.75 12.73 10.740 3.48910 4.88125 31.10 1487.96 1023.844 13.05 13.03 10.694 3.48720 4.88481 31.12 1487.83 1023.869 13.35 13.33 10.647 3.48368 4.88639 31.13 1487.67 1023.882 13.65 13.63 10.603 3.48236 4.89060 31.15 1487.54 1023.910 13.95 13.93 10.562 3.47991 4.89280 31.16 1487.42 1023.927 14.25 14.23 10.522 3.47670 4.89375 31.16 1487.28 1023.936 14.55 14.53 10.487 3.47356 4.89408 31.16 1487.16 1023.942 14.85 14.83 10.455 3.47162 4.89585 31.17 1487.06 1023.956 15.15 15.12 10.425 3.46934 4.89667 31.17 1486.96 1023.964 15.45 15.42 10.394 3.46961 4.90136 31.20 1486.89 1023.993 15.75 15.72 10.369 3.46802 4.90267 31.21 1486.81 1024.003 16.05 16.02 10.355 3.46687 4.90298 31.21 1486.76 1024.007 16.35 16.32 10.336 3.46646 4.90502 31.22 1486.72 1024.021 16.65 16.62 10.318 3.46568 4.90638 31.23 1486.67 1024.031 16.95 16.92 10.299 3.46466 4.90756 31.23 1486.61 1024.040 17.25 17.21 10.280 3.46462 4.91020 31.25 1486.56 1024.057 17.55 17.51 10.259 3.46337 4.91129 31.25 1486.50 1024.066 17.85 17.81 10.240 3.46227 4.91245 31.26 1486.44 1024.075 18.15 18.11 10.224 3.46121 4.91321 31.26 1486.39 1024.082 18.45 18.41 10.206 3.46038 4.91453 31.27 1486.34 1024.091 18.75 18.71 10.188 3.46001 4.91651 31.28 1486.30 1024.105 19.05 19.01 10.174 3.46031 4.91878 31.30 1486.27 1024.120 19.35 19.30 10.163 3.45836 4.91767 31.29 1486.22 1024.115 19.65 19.60 10.154 3.45826 4.91871 31.29 1486.20 1024.123 19.95 19.90 10.137 3.45840 4.92136 31.31 1486.16 1024.140 20.25 20.20 10.123 3.45971 4.92512 31.33 1486.15 1024.163 20.55 20.50 10.117 3.46000 4.92635 31.34 1486.14 1024.171 20.85 20.80 10.111 3.45870 4.92538 31.33 1486.12 1024.168 21.15 21.10 10.099 3.45865 4.92692 31.34 1486.09 1024.178 21.45 21.39 10.091 3.45756 4.92662 31.34 1486.06 1024.178 21.75 21.69 10.078 3.45603 4.92624 31.34 1486.01 1024.178 22.05 21.99 10.062 3.45581 4.92810 31.35 1485.97 1024.191 22.35 22.29 10.056 3.45452 4.92716 31.34 1485.95 1024.188 22.65 22.59 10.050 3.45380 4.92692 31.34 1485.93 1024.188 22.95 22.89 10.044 3.45389 4.92798 31.34 1485.92 1024.195 23.25 23.19 10.037 3.45444 4.92964 31.35 1485.91 1024.206 23.55 23.48 10.031 3.45501 4.93135 31.36 1485.91 1024.217 23.85 23.78 10.023 3.45516 4.93266 31.37 1485.90 1024.226 24.15 24.08 10.020 3.45409 4.93166 31.37 1485.88 1024.222 24.45 24.38 10.003 3.45280 4.93213 31.37 1485.82 1024.227 24.75 24.68 9.991 3.45402 4.93555 31.39 1485.81 1024.248 25.05 24.98 9.981 3.45312 4.93572 31.39 1485.78 1024.251 25.35 25.28 9.968 3.45393 4.93868 31.41 1485.76 1024.269 25.65 25.57 9.961 3.45420 4.94006 31.42 1485.75 1024.279 25.95 25.87 9.956 3.45337 4.93960 31.41 1485.73 1024.278 26.25 26.17 9.943 3.45318 4.94114 31.42 1485.70 1024.288 26.55 26.47 9.935 3.45299 4.94198 31.43 1485.69 1024.295 26.85 26.77 9.932 3.45310 4.94254 31.43 1485.68 1024.299 27.15 27.07 9.932 3.45328 4.94290 31.43 1485.69 1024.302 27.45 27.37 9.931 3.45412 4.94426 31.44 1485.70 1024.311 27.75 27.66 9.930 3.45420 4.94439 31.44 1485.71 1024.313 28.05 27.96 9.933 3.45716 4.94826 31.47 1485.75 1024.336 28.35 28.26 9.937 3.45683 4.94720 31.46 1485.77 1024.331 28.65 28.56 9.946 3.45640 4.94542 31.45 1485.79 1024.322 28.95 28.86 9.948 3.45669 4.94552 31.45 1485.80 1024.323 29.25 29.16 9.947 3.45673 4.94562 31.45 1485.81 1024.325 29.55 29.46 9.948 3.45840 4.94789 31.47 1485.83 1024.339 29.85 29.75 9.953 3.45875 4.94772 31.47 1485.85 1024.339 30.21 30.12 9.955 3.45995 4.94916 31.48 1485.88 1024.348