*2026/01/16 10:37:47.64 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/19 00:18:48.000 END TIME : UTC 2025/02/19 00:19:11.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 118 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.14 2 Depth metres 0.15 34.98 3 Temperature 'deg C (ITS90)' 9.044 9.315 4 Conductivity S/m 3.28684 3.3697 5 Conductance:Specific S/m 4.82502 4.91037 6 Salinity PSS-78 30.5 31.12 7 Speed:Sound m/s 1480.91 1483.17 8 Density kg/m^3 1023.59 1024.193 $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 : 48 LATITUDE : 49 51.97510 N ! (deg min) LONGITUDE : 126 42.86030 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250219_001848 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 118 118 MERGEHDR 1.3 2026/01/16 10:35:39 118 118 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 118 118 CALIB 12.1 2026/01/16 10:37:11 118 118 CLEAN 5.3 2026/01/16 10:37:47 118 118 $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 10:37:11 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 9.044 3.29739 4.84286 30.62 1480.99 1023.687 0.45 0.45 9.060 3.28684 4.82502 30.50 1480.91 1023.590 0.75 0.75 9.072 3.29719 4.83861 30.60 1481.07 1023.665 1.05 1.05 9.077 3.29953 4.84130 30.62 1481.12 1023.681 1.35 1.34 9.086 3.29843 4.83836 30.60 1481.14 1023.666 1.65 1.64 9.094 3.30100 4.84104 30.62 1481.20 1023.681 1.95 1.94 9.101 3.30803 4.85034 30.68 1481.31 1023.733 2.25 2.24 9.108 3.31518 4.85987 30.75 1481.42 1023.786 2.55 2.54 9.113 3.32166 4.86866 30.81 1481.52 1023.836 2.85 2.84 9.121 3.32438 4.87148 30.83 1481.58 1023.852 3.15 3.14 9.132 3.32575 4.87192 30.84 1481.63 1023.855 3.45 3.44 9.143 3.32889 4.87488 30.86 1481.71 1023.872 3.75 3.73 9.151 3.33142 4.87742 30.88 1481.76 1023.887 4.05 4.03 9.159 3.33271 4.87818 30.88 1481.81 1023.892 4.35 4.33 9.169 3.33461 4.87951 30.90 1481.86 1023.900 4.65 4.63 9.176 3.33586 4.88037 30.90 1481.90 1023.906 4.95 4.93 9.183 3.33752 4.88184 30.91 1481.94 1023.915 5.25 5.23 9.185 3.33791 4.88211 30.92 1481.96 1023.917 5.55 5.53 9.187 3.33826 4.88231 30.92 1481.97 1023.920 5.85 5.82 9.190 3.33950 4.88378 30.93 1482.00 1023.929 6.15 6.12 9.192 3.34081 4.88537 30.94 1482.03 1023.939 6.45 6.42 9.194 3.34259 4.88775 30.96 1482.06 1023.953 6.75 6.72 9.195 3.34387 4.88943 30.97 1482.08 1023.963 7.05 7.02 9.196 3.34389 4.88923 30.97 1482.09 1023.963 7.35 7.32 9.199 3.34402 4.88913 30.97 1482.10 1023.964 7.65 7.62 9.200 3.34400 4.88887 30.96 1482.11 1023.964 7.95 7.91 9.201 3.34422 4.88913 30.97 1482.12 1023.967 8.25 8.21 9.203 3.34460 4.88933 30.97 1482.14 1023.969 8.55 8.51 9.204 3.34486 4.88960 30.97 1482.15 1023.971 8.85 8.81 9.205 3.34474 4.88930 30.97 1482.15 1023.971 9.15 9.11 9.204 3.34460 4.88923 30.97 1482.15 1023.972 9.45 9.41 9.205 3.34483 4.88944 30.97 1482.16 1023.974 9.75 9.71 9.204 3.34491 4.88967 30.97 1482.17 1023.977 10.05 10.01 9.204 3.34483 4.88954 30.97 1482.17 1023.977 10.35 10.30 9.205 3.34554 4.89045 30.97 1482.19 1023.984 10.65 10.60 9.205 3.34527 4.88999 30.97 1482.19 1023.982 10.95 10.90 9.206 3.34550 4.89018 30.97 1482.20 1023.985 11.25 11.20 9.209 3.34593 4.89038 30.97 1482.22 1023.987 11.55 11.50 9.212 3.34676 4.89120 30.98 1482.24 1023.993 11.85 11.80 9.215 3.34708 4.89118 30.98 1482.26 1023.994 12.15 12.10 9.219 3.34782 4.89169 30.98 1482.28 1023.997 12.45 12.39 9.226 3.34956 4.89326 31.00 1482.33 1024.007 12.75 12.69 9.231 3.35054 4.89408 31.00 1482.36 1024.013 13.05 12.99 9.232 3.35054 4.89389 31.00 1482.37 1024.013 13.35 13.29 9.233 3.35109 4.89451 31.01 1482.38 1024.017 13.65 13.59 9.237 3.35156 4.89472 31.01 1482.40 1024.020 13.95 13.89 9.239 3.35160 4.89443 31.01 1482.41 1024.019 14.25 14.19 9.240 3.35150 4.89412 31.00 1482.42 1024.019 14.55 14.49 9.242 3.35172 4.89412 31.00 1482.43 1024.020 14.85 14.78 9.243 3.35227 4.89485 31.01 1482.44 1024.025 15.15 15.08 9.246 3.35303 4.89555 31.01 1482.47 1024.030 15.45 15.38 9.247 3.35406 4.89685 31.02 1482.49 1024.038 15.75 15.68 9.249 3.35377 4.89618 31.02 1482.49 1024.036 16.05 15.98 9.252 3.35509 4.89761 31.03 1482.52 1024.045 16.35 16.28 9.259 3.35575 4.89758 31.03 1482.56 1024.046 16.65 16.58 9.263 3.35755 4.89969 31.04 1482.59 1024.058 16.95 16.87 9.268 3.35839 4.90016 31.05 1482.62 1024.062 17.25 17.17 9.274 3.35806 4.89888 31.04 1482.64 1024.056 17.55 17.47 9.277 3.36000 4.90123 31.06 1482.67 1024.070 17.85 17.77 9.283 3.36012 4.90060 31.05 1482.70 1024.067 18.15 18.07 9.285 3.36010 4.90027 31.05 1482.71 1024.067 18.45 18.37 9.287 3.36007 4.89995 31.05 1482.72 1024.066 18.75 18.67 9.288 3.36103 4.90111 31.06 1482.74 1024.074 19.05 18.96 9.289 3.36063 4.90048 31.05 1482.74 1024.071 19.35 19.26 9.289 3.36088 4.90082 31.05 1482.75 1024.075 19.65 19.56 9.291 3.36188 4.90198 31.06 1482.77 1024.082 19.95 19.86 9.293 3.36243 4.90246 31.07 1482.79 1024.086 20.25 20.16 9.293 3.36287 4.90320 31.07 1482.79 1024.091 20.55 20.46 9.292 3.36205 4.90208 31.06 1482.79 1024.086 20.85 20.76 9.291 3.36224 4.90253 31.07 1482.79 1024.090 21.15 21.05 9.292 3.36205 4.90206 31.06 1482.80 1024.089 21.45 21.35 9.292 3.36281 4.90314 31.07 1482.81 1024.096 21.75 21.65 9.293 3.36253 4.90269 31.07 1482.81 1024.095 22.05 21.95 9.292 3.36254 4.90275 31.07 1482.82 1024.096 22.35 22.25 9.293 3.36247 4.90258 31.07 1482.82 1024.097 22.65 22.55 9.294 3.36322 4.90353 31.07 1482.84 1024.103 22.95 22.85 9.299 3.36408 4.90405 31.08 1482.87 1024.107 23.25 23.14 9.300 3.36437 4.90436 31.08 1482.88 1024.110 23.55 23.44 9.299 3.36423 4.90421 31.08 1482.88 1024.110 23.85 23.74 9.299 3.36449 4.90467 31.08 1482.89 1024.114 24.15 24.04 9.300 3.36487 4.90503 31.08 1482.90 1024.117 24.45 24.34 9.303 3.36498 4.90481 31.08 1482.91 1024.117 24.75 24.64 9.305 3.36541 4.90518 31.09 1482.93 1024.121 25.05 24.94 9.304 3.36531 4.90513 31.08 1482.93 1024.122 25.35 25.24 9.306 3.36579 4.90549 31.09 1482.95 1024.125 25.65 25.53 9.309 3.36587 4.90525 31.09 1482.96 1024.125 25.95 25.83 9.309 3.36598 4.90541 31.09 1482.97 1024.127 26.25 26.13 9.310 3.36624 4.90559 31.09 1482.98 1024.129 26.55 26.43 9.310 3.36627 4.90574 31.09 1482.98 1024.131 26.85 26.73 9.309 3.36673 4.90644 31.09 1482.99 1024.136 27.15 27.03 9.312 3.36699 4.90644 31.09 1483.01 1024.137 27.45 27.33 9.312 3.36743 4.90703 31.10 1483.02 1024.142 27.75 27.62 9.313 3.36752 4.90708 31.10 1483.03 1024.143 28.05 27.92 9.313 3.36782 4.90749 31.10 1483.03 1024.147 28.35 28.22 9.313 3.36784 4.90755 31.10 1483.04 1024.148 28.65 28.52 9.314 3.36785 4.90743 31.10 1483.05 1024.149 28.95 28.82 9.314 3.36802 4.90761 31.10 1483.05 1024.151 29.25 29.12 9.314 3.36790 4.90747 31.10 1483.06 1024.152 29.55 29.42 9.314 3.36835 4.90813 31.10 1483.07 1024.157 29.85 29.71 9.314 3.36824 4.90796 31.10 1483.07 1024.157 30.15 30.01 9.314 3.36853 4.90842 31.11 1483.08 1024.161 30.45 30.31 9.314 3.36867 4.90859 31.11 1483.09 1024.163 30.75 30.61 9.313 3.36852 4.90847 31.11 1483.09 1024.164 31.05 30.91 9.314 3.36884 4.90884 31.11 1483.10 1024.167 31.35 31.21 9.315 3.36873 4.90861 31.11 1483.10 1024.167 31.65 31.51 9.314 3.36870 4.90862 31.11 1483.11 1024.168 31.95 31.80 9.314 3.36807 4.90766 31.10 1483.10 1024.164 32.25 32.10 9.315 3.36853 4.90829 31.11 1483.11 1024.169 32.55 32.40 9.314 3.36873 4.90866 31.11 1483.12 1024.172 32.85 32.70 9.314 3.36898 4.90900 31.11 1483.13 1024.175 33.15 33.00 9.314 3.36876 4.90875 31.11 1483.13 1024.175 33.45 33.30 9.314 3.36869 4.90868 31.11 1483.13 1024.176 33.75 33.60 9.314 3.36849 4.90834 31.10 1483.14 1024.176 34.05 33.89 9.313 3.36812 4.90792 31.10 1483.13 1024.175 34.35 34.19 9.314 3.36911 4.90929 31.11 1483.15 1024.183 34.65 34.49 9.314 3.36887 4.90889 31.11 1483.15 1024.182 34.95 34.79 9.312 3.36950 4.91010 31.12 1483.16 1024.190 35.14 34.98 9.312 3.36970 4.91037 31.12 1483.17 1024.193