*2026/01/16 10:37:46.39 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/23 22:29:27.000 END TIME : UTC 2025/01/23 22:29:49.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 115 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 34.38 2 Depth metres 0.15 34.24 3 Temperature 'deg C (ITS90)' 7.283 10.276 4 Conductivity S/m 2.93148 3.49126 5 Conductance:Specific S/m 4.53485 4.94886 6 Salinity PSS-78 28.24 31.51 7 Speed:Sound m/s 1471.48 1487.15 8 Density kg/m^3 1022.061 1024.341 $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 : 34 LATITUDE : 48 56.85150 N ! (deg min) LONGITUDE : 125 19.30930 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250123_222927 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:24 115 115 MERGEHDR 1.3 2026/01/16 10:35:38 115 115 HDREDIT2 3.2 2026/01/16 10:36:09 ? ? REMOVECH 8.2 2026/01/16 10:36:37 115 115 CALIB 12.1 2026/01/16 10:37:10 115 115 CLEAN 5.3 2026/01/16 10:37:46 115 115 $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 7.332 2.94425 4.55314 28.37 1471.68 1022.159 0.45 0.45 7.322 2.93148 4.53485 28.24 1471.48 1022.061 0.75 0.75 7.314 2.94329 4.55423 28.37 1471.62 1022.167 1.05 1.05 7.300 2.94270 4.55534 28.38 1471.58 1022.175 1.35 1.35 7.283 2.94224 4.55688 28.39 1471.53 1022.184 1.65 1.65 7.284 2.94424 4.55985 28.41 1471.56 1022.202 1.95 1.94 7.287 2.94474 4.56026 28.41 1471.58 1022.205 2.25 2.24 7.283 2.94410 4.55981 28.41 1471.57 1022.204 2.55 2.54 7.291 2.94428 4.55899 28.40 1471.60 1022.201 2.85 2.84 7.320 2.94372 4.55409 28.37 1471.68 1022.175 3.15 3.14 7.375 2.95026 4.55644 28.40 1471.93 1022.189 3.45 3.44 7.602 2.96285 4.54394 28.34 1472.75 1022.120 3.75 3.74 8.002 3.07573 4.65985 29.20 1475.37 1022.740 4.05 4.04 8.281 3.13000 4.70235 29.54 1476.85 1022.965 4.35 4.34 8.579 3.15468 4.69740 29.54 1477.99 1022.930 4.65 4.64 8.809 3.19078 4.71878 29.72 1479.09 1023.038 4.95 4.94 8.967 3.19387 4.70142 29.62 1479.56 1022.938 5.25 5.23 9.294 3.20512 4.67301 29.47 1480.59 1022.769 5.55 5.53 9.276 3.22007 4.69731 29.63 1480.73 1022.903 5.85 5.83 9.424 3.23701 4.70163 29.68 1481.35 1022.920 6.15 6.13 9.509 3.26075 4.72456 29.85 1481.87 1023.042 6.45 6.43 9.564 3.27073 4.73146 29.91 1482.15 1023.078 6.75 6.73 9.587 3.26994 4.72713 29.88 1482.21 1023.054 7.05 7.03 9.610 3.27144 4.72613 29.88 1482.29 1023.049 7.35 7.33 9.640 3.27437 4.72628 29.88 1482.41 1023.049 7.65 7.63 9.661 3.28057 4.73237 29.93 1482.55 1023.082 7.95 7.92 9.706 3.30020 4.75448 30.09 1482.91 1023.202 8.25 8.22 9.764 3.32513 4.78250 30.29 1483.38 1023.353 8.55 8.52 9.818 3.34240 4.79983 30.42 1483.74 1023.445 8.85 8.82 9.878 3.34852 4.80036 30.43 1483.97 1023.446 9.15 9.12 9.903 3.35353 4.80410 30.46 1484.10 1023.466 9.45 9.42 9.945 3.36027 4.80799 30.49 1484.30 1023.486 9.75 9.72 9.978 3.36776 4.81407 30.54 1484.49 1023.518 10.05 10.02 10.006 3.37472 4.82019 30.58 1484.65 1023.551 10.35 10.32 10.030 3.37879 4.82269 30.60 1484.77 1023.565 10.65 10.61 10.049 3.38736 4.83225 30.67 1484.92 1023.617 10.95 10.91 10.068 3.39028 4.83385 30.69 1485.01 1023.626 11.25 11.21 10.080 3.39175 4.83432 30.69 1485.07 1023.629 11.55 11.51 10.089 3.39693 4.84043 30.74 1485.16 1023.663 11.85 11.81 10.094 3.40121 4.84582 30.77 1485.23 1023.694 12.15 12.11 10.097 3.40585 4.85204 30.82 1485.30 1023.729 12.45 12.41 10.106 3.40865 4.85487 30.84 1485.36 1023.745 12.75 12.71 10.111 3.41083 4.85720 30.86 1485.40 1023.759 13.05 13.00 10.113 3.41452 4.86220 30.89 1485.46 1023.787 13.35 13.30 10.113 3.41955 4.86936 30.94 1485.52 1023.828 13.65 13.60 10.116 3.42178 4.87207 30.96 1485.57 1023.844 13.95 13.90 10.119 3.42327 4.87381 30.97 1485.60 1023.855 14.25 14.20 10.121 3.42538 4.87660 30.99 1485.63 1023.871 14.55 14.50 10.120 3.42732 4.87949 31.01 1485.66 1023.888 14.85 14.80 10.118 3.42953 4.88285 31.04 1485.68 1023.908 15.15 15.09 10.122 3.43056 4.88373 31.04 1485.71 1023.914 15.45 15.39 10.129 3.43174 4.88450 31.05 1485.75 1023.919 15.75 15.69 10.132 3.43215 4.88461 31.05 1485.77 1023.921 16.05 15.99 10.136 3.43348 4.88595 31.06 1485.80 1023.929 16.35 16.29 10.140 3.43475 4.88725 31.07 1485.83 1023.937 16.65 16.59 10.140 3.43599 4.88903 31.08 1485.85 1023.948 16.95 16.89 10.140 3.43721 4.89074 31.09 1485.87 1023.959 17.25 17.19 10.144 3.43889 4.89257 31.11 1485.90 1023.970 17.55 17.48 10.149 3.44011 4.89357 31.12 1485.94 1023.976 17.85 17.78 10.151 3.44020 4.89344 31.11 1485.95 1023.977 18.15 18.08 10.156 3.44133 4.89442 31.12 1485.98 1023.983 18.45 18.38 10.160 3.44294 4.89607 31.13 1486.01 1023.993 18.75 18.68 10.162 3.44353 4.89666 31.14 1486.03 1023.997 19.05 18.98 10.163 3.44468 4.89814 31.15 1486.05 1024.007 19.35 19.28 10.165 3.44630 4.90014 31.16 1486.08 1024.019 19.65 19.57 10.165 3.44644 4.90037 31.16 1486.09 1024.021 19.95 19.87 10.169 3.44660 4.90000 31.16 1486.10 1024.020 20.25 20.17 10.166 3.44759 4.90194 31.18 1486.11 1024.033 20.55 20.47 10.177 3.45204 4.90670 31.21 1486.20 1024.059 20.85 20.77 10.182 3.45409 4.90891 31.23 1486.24 1024.072 21.15 21.07 10.181 3.45480 4.91001 31.23 1486.25 1024.080 21.45 21.37 10.180 3.45615 4.91202 31.25 1486.27 1024.092 21.75 21.67 10.183 3.45650 4.91216 31.25 1486.29 1024.094 22.05 21.96 10.184 3.45673 4.91236 31.25 1486.30 1024.096 22.35 22.26 10.187 3.45773 4.91330 31.26 1486.32 1024.102 22.65 22.56 10.189 3.45841 4.91406 31.26 1486.34 1024.108 22.95 22.86 10.190 3.45881 4.91449 31.27 1486.35 1024.111 23.25 23.16 10.192 3.45856 4.91390 31.26 1486.36 1024.109 23.55 23.46 10.192 3.45939 4.91498 31.27 1486.38 1024.116 23.85 23.76 10.193 3.45991 4.91565 31.27 1486.39 1024.121 24.15 24.05 10.195 3.46047 4.91620 31.28 1486.40 1024.125 24.45 24.35 10.196 3.46179 4.91786 31.29 1486.43 1024.136 24.75 24.65 10.196 3.46228 4.91851 31.29 1486.44 1024.141 25.05 24.95 10.197 3.46266 4.91893 31.30 1486.45 1024.144 25.35 25.25 10.200 3.46400 4.92044 31.31 1486.48 1024.153 25.65 25.55 10.203 3.46542 4.92208 31.32 1486.51 1024.164 25.95 25.85 10.205 3.46614 4.92279 31.33 1486.53 1024.169 26.25 26.14 10.204 3.46671 4.92380 31.33 1486.54 1024.176 26.55 26.44 10.200 3.46804 4.92614 31.35 1486.55 1024.190 26.85 26.74 10.211 3.47113 4.92903 31.37 1486.62 1024.206 27.15 27.04 10.213 3.47134 4.92912 31.37 1486.63 1024.208 27.45 27.34 10.218 3.47243 4.92990 31.38 1486.66 1024.213 27.75 27.64 10.219 3.47265 4.93004 31.38 1486.67 1024.215 28.05 27.94 10.224 3.47297 4.92988 31.38 1486.69 1024.215 28.35 28.23 10.228 3.47349 4.93000 31.38 1486.72 1024.217 28.65 28.53 10.230 3.47371 4.93002 31.38 1486.73 1024.218 28.95 28.83 10.231 3.47398 4.93029 31.38 1486.74 1024.221 29.25 29.13 10.232 3.47409 4.93024 31.38 1486.75 1024.222 29.55 29.43 10.234 3.47477 4.93102 31.39 1486.77 1024.227 29.85 29.73 10.238 3.47541 4.93140 31.39 1486.79 1024.230 30.15 30.03 10.242 3.47808 4.93455 31.41 1486.84 1024.248 30.45 30.32 10.244 3.47991 4.93684 31.43 1486.87 1024.262 30.75 30.62 10.249 3.48024 4.93672 31.43 1486.89 1024.262 31.05 30.92 10.252 3.48005 4.93596 31.42 1486.90 1024.259 31.35 31.22 10.254 3.48151 4.93781 31.44 1486.93 1024.271 31.65 31.52 10.256 3.48257 4.93905 31.44 1486.95 1024.279 31.95 31.82 10.257 3.48352 4.94014 31.45 1486.97 1024.286 32.25 32.12 10.257 3.48384 4.94060 31.45 1486.98 1024.290 32.55 32.41 10.250 3.48522 4.94358 31.47 1486.98 1024.308 32.85 32.71 10.254 3.48596 4.94410 31.48 1487.00 1024.312 33.15 33.01 10.255 3.48848 4.94745 31.50 1487.04 1024.331 33.45 33.31 10.264 3.48879 4.94666 31.50 1487.08 1024.328 33.75 33.61 10.272 3.49021 4.94759 31.51 1487.12 1024.333 34.05 33.91 10.273 3.49126 4.94886 31.51 1487.14 1024.341 34.38 34.24 10.276 3.49118 4.94844 31.51 1487.15 1024.340