*2026/01/16 09:57:57.62 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/12/10 18:52:14.000 END TIME : UTC 2024/12/10 18:52:31.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 90 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.74 2 Depth metres 0.15 26.64 3 Temperature 'deg C (ITS90)' 9.649 10.694 4 Conductivity S/m 3.14333 3.4793 5 Conductance:Specific S/m 4.53597 4.87885 6 Salinity PSS-78 28.56 31.07 7 Speed:Sound m/s 1480.71 1487.88 8 Density kg/m^3 1021.981 1023.897 $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 : 325 LATITUDE : 49 37.95670 N ! (deg min) LONGITUDE : 126 29.35890 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241210_185214 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:10 90 90 MERGEHDR 1.3 2026/01/16 09:54:14 90 90 HDREDIT2 3.2 2026/01/16 09:55:16 ? ? REMOVECH 8.2 2026/01/16 09:56:26 90 90 CALIB 12.1 2026/01/16 09:56:59 90 90 CLEAN 5.3 2026/01/16 09:57:57 90 90 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:16 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 09:56:26 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:59 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 9.649 3.14333 4.53597 28.56 1480.71 1021.981 0.45 0.45 9.671 3.17826 4.58351 28.89 1481.20 1022.240 0.75 0.75 9.778 3.21043 4.61566 29.13 1481.89 1022.409 1.05 1.05 9.895 3.22028 4.61418 29.13 1482.33 1022.395 1.35 1.35 9.998 3.26833 4.66938 29.53 1483.19 1022.690 1.65 1.65 10.026 3.28070 4.68319 29.63 1483.42 1022.765 1.95 1.94 10.027 3.28414 4.68798 29.66 1483.47 1022.792 2.25 2.24 10.049 3.29189 4.69618 29.72 1483.63 1022.837 2.55 2.54 10.080 3.29590 4.69764 29.74 1483.77 1022.844 2.85 2.84 10.115 3.30325 4.70342 29.78 1483.95 1022.874 3.15 3.14 10.141 3.30718 4.70564 29.80 1484.07 1022.886 3.45 3.44 10.165 3.31152 4.70853 29.82 1484.19 1022.901 3.75 3.74 10.200 3.32561 4.72390 29.93 1484.46 1022.984 4.05 4.04 10.232 3.33934 4.73905 30.04 1484.71 1023.066 4.35 4.34 10.255 3.34805 4.74831 30.11 1484.88 1023.116 4.65 4.63 10.275 3.35162 4.75065 30.13 1484.98 1023.129 4.95 4.93 10.289 3.35313 4.75091 30.13 1485.04 1023.130 5.25 5.23 10.294 3.35302 4.75011 30.13 1485.06 1023.127 5.55 5.53 10.295 3.35405 4.75149 30.14 1485.08 1023.136 5.85 5.83 10.291 3.35452 4.75267 30.15 1485.08 1023.144 6.15 6.13 10.281 3.35706 4.75764 30.18 1485.09 1023.173 6.45 6.43 10.276 3.36121 4.76422 30.22 1485.13 1023.211 6.75 6.73 10.277 3.36469 4.76892 30.26 1485.18 1023.237 7.05 7.03 10.294 3.36530 4.76754 30.25 1485.24 1023.230 7.35 7.32 10.296 3.36369 4.76498 30.23 1485.23 1023.217 7.65 7.62 10.283 3.36355 4.76654 30.24 1485.20 1023.228 7.95 7.92 10.281 3.36452 4.76823 30.25 1485.21 1023.239 8.25 8.22 10.285 3.36677 4.77086 30.27 1485.25 1023.254 8.55 8.52 10.288 3.36715 4.77094 30.27 1485.27 1023.255 8.85 8.82 10.291 3.36772 4.77137 30.28 1485.29 1023.259 9.15 9.12 10.293 3.36832 4.77192 30.28 1485.30 1023.263 9.45 9.42 10.296 3.36955 4.77321 30.29 1485.33 1023.271 9.75 9.72 10.298 3.37091 4.77488 30.30 1485.36 1023.281 10.05 10.01 10.306 3.37288 4.77663 30.31 1485.41 1023.292 10.35 10.31 10.311 3.37531 4.77945 30.33 1485.45 1023.308 10.65 10.61 10.320 3.38098 4.78620 30.38 1485.55 1023.346 10.95 10.91 10.329 3.38264 4.78734 30.39 1485.60 1023.352 11.25 11.21 10.356 3.38837 4.79175 30.43 1485.74 1023.376 11.55 11.51 10.377 3.39530 4.79875 30.48 1485.89 1023.414 11.85 11.81 10.399 3.39951 4.80172 30.50 1486.00 1023.430 12.15 12.11 10.431 3.40546 4.80570 30.53 1486.16 1023.451 12.45 12.40 10.464 3.41180 4.81029 30.57 1486.32 1023.475 12.75 12.70 10.488 3.41793 4.81563 30.61 1486.46 1023.503 13.05 13.00 10.510 3.42210 4.81855 30.63 1486.57 1023.519 13.35 13.30 10.529 3.42536 4.82049 30.65 1486.67 1023.529 13.65 13.60 10.553 3.43039 4.82432 30.68 1486.79 1023.550 13.95 13.90 10.566 3.43431 4.82814 30.71 1486.88 1023.571 14.25 14.20 10.586 3.43995 4.83330 30.74 1487.00 1023.599 14.55 14.50 10.601 3.44474 4.83798 30.78 1487.10 1023.625 14.85 14.79 10.616 3.44633 4.83813 30.78 1487.17 1023.626 15.15 15.09 10.621 3.44820 4.84017 30.80 1487.20 1023.638 15.45 15.39 10.631 3.45023 4.84155 30.81 1487.26 1023.646 15.75 15.69 10.639 3.45186 4.84276 30.82 1487.31 1023.653 16.05 15.99 10.647 3.45379 4.84444 30.83 1487.35 1023.663 16.35 16.29 10.652 3.45467 4.84499 30.83 1487.38 1023.667 16.65 16.59 10.653 3.45522 4.84558 30.84 1487.40 1023.671 16.95 16.89 10.660 3.45644 4.84632 30.84 1487.43 1023.676 17.25 17.18 10.666 3.45664 4.84590 30.84 1487.45 1023.675 17.55 17.48 10.667 3.45766 4.84709 30.85 1487.48 1023.682 17.85 17.78 10.676 3.45879 4.84755 30.85 1487.52 1023.685 18.15 18.08 10.688 3.46087 4.84872 30.86 1487.58 1023.692 18.45 18.38 10.686 3.46164 4.85009 30.87 1487.59 1023.701 18.75 18.68 10.694 3.46273 4.85056 30.88 1487.62 1023.704 19.05 18.98 10.688 3.46309 4.85189 30.89 1487.62 1023.713 19.35 19.28 10.682 3.46236 4.85167 30.88 1487.60 1023.714 19.65 19.57 10.684 3.46200 4.85093 30.88 1487.60 1023.711 19.95 19.87 10.683 3.46305 4.85249 30.89 1487.62 1023.721 20.25 20.17 10.678 3.46383 4.85424 30.90 1487.62 1023.732 20.55 20.47 10.675 3.46824 4.86087 30.95 1487.67 1023.770 20.85 20.77 10.677 3.47116 4.86466 30.97 1487.71 1023.792 21.15 21.07 10.675 3.47407 4.86911 31.00 1487.75 1023.818 21.45 21.37 10.671 3.47410 4.86960 31.01 1487.74 1023.822 21.75 21.67 10.673 3.47514 4.87077 31.02 1487.77 1023.830 22.05 21.96 10.674 3.47501 4.87051 31.01 1487.77 1023.830 22.35 22.26 10.673 3.47472 4.87028 31.01 1487.77 1023.830 22.65 22.56 10.672 3.47517 4.87098 31.02 1487.78 1023.835 22.95 22.86 10.671 3.47539 4.87141 31.02 1487.78 1023.839 23.25 23.16 10.672 3.47397 4.86939 31.01 1487.77 1023.829 23.55 23.46 10.676 3.47521 4.87055 31.01 1487.80 1023.836 23.85 23.76 10.674 3.47545 4.87107 31.02 1487.81 1023.840 24.15 24.05 10.670 3.47455 4.87044 31.01 1487.79 1023.838 24.45 24.35 10.668 3.47493 4.87125 31.02 1487.79 1023.844 24.75 24.65 10.667 3.47436 4.87056 31.01 1487.79 1023.842 25.05 24.95 10.667 3.47552 4.87218 31.02 1487.81 1023.852 25.35 25.25 10.672 3.47562 4.87170 31.02 1487.83 1023.850 25.65 25.55 10.673 3.47617 4.87228 31.02 1487.84 1023.855 25.95 25.85 10.674 3.47804 4.87479 31.04 1487.87 1023.870 26.25 26.15 10.671 3.47930 4.87697 31.06 1487.88 1023.883 26.55 26.44 10.661 3.47832 4.87698 31.06 1487.85 1023.885 26.74 26.64 10.651 3.47867 4.87885 31.07 1487.83 1023.897