*2026/01/16 10:37:46.98 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/18 20:10:12.000 END TIME : UTC 2025/02/18 20:10:36.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 121 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 36.03 2 Depth metres 0.15 35.86 3 Temperature 'deg C (ITS90)' 8.144 8.624 4 Conductivity S/m 3.24584 3.26591 5 Conductance:Specific S/m 4.84635 4.89935 6 Salinity PSS-78 30.59 30.87 7 Speed:Sound m/s 1478.35 1479.48 8 Density kg/m^3 1023.728 1024.177 $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 : 42 LATITUDE : 49 50.81920 N ! (deg min) LONGITUDE : 126 56.64830 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250218_201012 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 121 121 MERGEHDR 1.3 2026/01/16 10:35:39 121 121 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 121 121 CALIB 12.1 2026/01/16 10:37:10 121 121 CLEAN 5.3 2026/01/16 10:37:46 121 121 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:09 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 8.576 3.26591 4.86343 30.70 1479.34 1023.818 0.45 0.45 8.587 3.25633 4.84762 30.59 1479.25 1023.733 0.75 0.75 8.585 3.25858 4.85126 30.62 1479.28 1023.754 1.05 1.05 8.601 3.25746 4.84734 30.59 1479.31 1023.733 1.35 1.34 8.621 3.25879 4.84635 30.59 1479.39 1023.728 1.65 1.64 8.624 3.26377 4.85334 30.64 1479.46 1023.768 1.95 1.94 8.620 3.26530 4.85622 30.66 1479.48 1023.785 2.25 2.24 8.599 3.26545 4.85941 30.68 1479.43 1023.804 2.55 2.54 8.586 3.26540 4.86122 30.69 1479.40 1023.816 2.85 2.84 8.572 3.26480 4.86244 30.69 1479.35 1023.824 3.15 3.14 8.550 3.26457 4.86517 30.71 1479.30 1023.841 3.45 3.43 8.530 3.26361 4.86675 30.72 1479.24 1023.852 3.75 3.73 8.517 3.26310 4.86778 30.72 1479.20 1023.859 4.05 4.03 8.502 3.26330 4.87030 30.74 1479.17 1023.875 4.35 4.33 8.492 3.26198 4.86980 30.73 1479.13 1023.874 4.65 4.63 8.484 3.26139 4.87006 30.73 1479.10 1023.877 4.95 4.93 8.477 3.26125 4.87083 30.74 1479.09 1023.882 5.25 5.23 8.470 3.26102 4.87160 30.74 1479.07 1023.888 5.55 5.53 8.457 3.26005 4.87207 30.74 1479.03 1023.892 5.85 5.82 8.448 3.26021 4.87360 30.75 1479.01 1023.902 6.15 6.12 8.441 3.25959 4.87363 30.75 1478.99 1023.904 6.45 6.42 8.436 3.25938 4.87410 30.75 1478.98 1023.908 6.75 6.72 8.428 3.25918 4.87487 30.76 1478.96 1023.914 7.05 7.02 8.425 3.25844 4.87425 30.75 1478.94 1023.912 7.35 7.32 8.418 3.25792 4.87443 30.75 1478.92 1023.914 7.65 7.62 8.408 3.25810 4.87618 30.76 1478.90 1023.925 7.95 7.91 8.396 3.25665 4.87575 30.76 1478.86 1023.924 8.25 8.21 8.378 3.25589 4.87731 30.77 1478.80 1023.935 8.55 8.51 8.363 3.25470 4.87768 30.77 1478.75 1023.938 8.85 8.81 8.348 3.25452 4.87959 30.78 1478.71 1023.951 9.15 9.11 8.333 3.25398 4.88108 30.79 1478.67 1023.961 9.45 9.41 8.325 3.25348 4.88148 30.79 1478.65 1023.964 9.75 9.71 8.320 3.25245 4.88057 30.78 1478.63 1023.961 10.05 10.01 8.314 3.25108 4.87943 30.77 1478.60 1023.956 10.35 10.30 8.300 3.25095 4.88127 30.78 1478.56 1023.968 10.65 10.60 8.268 3.24956 4.88398 30.80 1478.46 1023.985 10.95 10.90 8.244 3.24814 4.88531 30.80 1478.38 1023.994 11.25 11.20 8.240 3.24847 4.88641 30.81 1478.38 1024.001 11.55 11.50 8.236 3.24772 4.88577 30.80 1478.37 1023.999 11.85 11.80 8.235 3.24765 4.88590 30.80 1478.37 1024.001 12.15 12.10 8.234 3.24704 4.88518 30.80 1478.36 1023.998 12.45 12.39 8.231 3.24761 4.88638 30.81 1478.36 1024.006 12.75 12.69 8.229 3.24756 4.88666 30.81 1478.36 1024.009 13.05 12.99 8.228 3.24732 4.88646 30.81 1478.36 1024.009 13.35 13.29 8.227 3.24772 4.88719 30.81 1478.37 1024.015 13.65 13.59 8.227 3.24778 4.88723 30.81 1478.37 1024.016 13.95 13.89 8.227 3.24750 4.88690 30.81 1478.37 1024.016 14.25 14.19 8.226 3.24732 4.88672 30.81 1478.37 1024.016 14.55 14.48 8.225 3.24691 4.88626 30.80 1478.37 1024.015 14.85 14.78 8.223 3.24721 4.88697 30.81 1478.38 1024.020 15.15 15.08 8.222 3.24671 4.88635 30.80 1478.37 1024.018 15.45 15.38 8.219 3.24690 4.88707 30.81 1478.37 1024.023 15.75 15.68 8.219 3.24723 4.88759 30.81 1478.38 1024.027 16.05 15.98 8.219 3.24679 4.88701 30.81 1478.38 1024.025 16.35 16.28 8.219 3.24678 4.88692 30.81 1478.38 1024.026 16.65 16.58 8.217 3.24703 4.88763 30.81 1478.38 1024.031 16.95 16.87 8.218 3.24673 4.88705 30.81 1478.39 1024.029 17.25 17.17 8.215 3.24685 4.88759 30.81 1478.39 1024.034 17.55 17.47 8.211 3.24622 4.88729 30.81 1478.37 1024.033 17.85 17.77 8.209 3.24636 4.88774 30.81 1478.37 1024.037 18.15 18.07 8.208 3.24637 4.88800 30.81 1478.37 1024.040 18.45 18.37 8.206 3.24644 4.88834 30.81 1478.38 1024.043 18.75 18.67 8.202 3.24634 4.88872 30.81 1478.37 1024.047 19.05 18.96 8.201 3.24614 4.88862 30.81 1478.37 1024.047 19.35 19.26 8.195 3.24586 4.88902 30.82 1478.35 1024.051 19.65 19.56 8.192 3.24595 4.88962 30.82 1478.35 1024.056 19.95 19.86 8.189 3.24597 4.89006 30.82 1478.35 1024.059 20.25 20.16 8.190 3.24584 4.88984 30.82 1478.35 1024.059 20.55 20.46 8.189 3.24606 4.89033 30.82 1478.36 1024.063 20.85 20.76 8.189 3.24603 4.89017 30.82 1478.36 1024.064 21.15 21.05 8.191 3.24637 4.89037 30.82 1478.38 1024.066 21.45 21.35 8.192 3.24638 4.89029 30.82 1478.38 1024.067 21.75 21.65 8.190 3.24637 4.89060 30.82 1478.38 1024.070 22.05 21.95 8.189 3.24673 4.89123 30.83 1478.39 1024.075 22.35 22.25 8.187 3.24633 4.89099 30.83 1478.38 1024.075 22.65 22.55 8.187 3.24694 4.89195 30.83 1478.40 1024.081 22.95 22.85 8.184 3.24669 4.89195 30.83 1478.39 1024.083 23.25 23.14 8.184 3.24650 4.89167 30.83 1478.39 1024.082 23.55 23.44 8.184 3.24659 4.89183 30.83 1478.40 1024.084 23.85 23.74 8.185 3.24653 4.89162 30.83 1478.40 1024.085 24.15 24.04 8.184 3.24638 4.89155 30.83 1478.40 1024.085 24.45 24.34 8.182 3.24660 4.89205 30.83 1478.41 1024.089 24.75 24.64 8.181 3.24636 4.89184 30.83 1478.41 1024.090 25.05 24.94 8.180 3.24669 4.89258 30.84 1478.41 1024.095 25.35 25.24 8.179 3.24640 4.89225 30.83 1478.41 1024.094 25.65 25.53 8.177 3.24631 4.89238 30.83 1478.41 1024.097 25.95 25.83 8.177 3.24618 4.89216 30.83 1478.41 1024.097 26.25 26.13 8.175 3.24618 4.89250 30.83 1478.41 1024.100 26.55 26.43 8.173 3.24607 4.89262 30.83 1478.41 1024.102 26.85 26.73 8.173 3.24636 4.89310 30.84 1478.42 1024.106 27.15 27.03 8.167 3.24626 4.89377 30.84 1478.41 1024.111 27.45 27.33 8.163 3.24628 4.89440 30.84 1478.40 1024.116 27.75 27.62 8.159 3.24691 4.89590 30.85 1478.40 1024.125 28.05 27.92 8.157 3.24719 4.89675 30.86 1478.40 1024.131 28.35 28.22 8.154 3.24710 4.89694 30.86 1478.40 1024.134 28.65 28.52 8.150 3.24726 4.89778 30.87 1478.40 1024.139 28.95 28.82 8.149 3.24700 4.89756 30.86 1478.39 1024.140 29.25 29.12 8.148 3.24666 4.89721 30.86 1478.39 1024.139 29.55 29.42 8.148 3.24689 4.89752 30.86 1478.40 1024.142 29.85 29.71 8.149 3.24735 4.89812 30.87 1478.41 1024.146 30.15 30.01 8.148 3.24708 4.89781 30.87 1478.41 1024.146 30.45 30.31 8.150 3.24740 4.89802 30.87 1478.43 1024.148 30.75 30.61 8.149 3.24729 4.89805 30.87 1478.43 1024.150 31.05 30.91 8.150 3.24726 4.89784 30.87 1478.43 1024.150 31.35 31.21 8.147 3.24750 4.89864 30.87 1478.43 1024.156 31.65 31.51 8.146 3.24727 4.89842 30.87 1478.43 1024.156 31.95 31.80 8.147 3.24785 4.89911 30.87 1478.45 1024.161 32.25 32.10 8.148 3.24769 4.89882 30.87 1478.45 1024.161 32.55 32.40 8.149 3.24768 4.89860 30.87 1478.46 1024.161 32.85 32.70 8.150 3.24789 4.89885 30.87 1478.47 1024.163 33.15 33.00 8.151 3.24831 4.89930 30.87 1478.48 1024.167 33.45 33.30 8.153 3.24797 4.89852 30.87 1478.49 1024.164 33.75 33.60 8.153 3.24837 4.89903 30.87 1478.50 1024.168 34.05 33.89 8.155 3.24868 4.89927 30.87 1478.51 1024.170 34.35 34.19 8.154 3.24798 4.89835 30.87 1478.51 1024.167 34.65 34.49 8.152 3.24701 4.89714 30.86 1478.49 1024.161 34.95 34.79 8.147 3.24700 4.89784 30.86 1478.48 1024.167 35.25 35.09 8.145 3.24773 4.89925 30.87 1478.49 1024.176 35.55 35.39 8.145 3.24780 4.89935 30.87 1478.50 1024.177 35.85 35.69 8.144 3.24719 4.89857 30.87 1478.49 1024.175 36.03 35.86 8.145 3.24732 4.89864 30.87 1478.50 1024.176