*2026/01/16 09:47:04.15 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2023/11/30 18:17:41.000 END TIME : UTC 2023/11/30 18:18:01.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 105 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 31.33 2 Depth metres 0.15 31.21 3 Temperature 'deg C (ITS90)' 10.831 11.319 4 Conductivity S/m 3.35413 3.49443 5 Conductance:Specific S/m 4.67863 4.81352 6 Salinity PSS-78 29.69 30.68 7 Speed:Sound m/s 1486.41 1489.73 8 Density kg/m^3 1022.671 1023.503 $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 : 2023-031 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 81 LATITUDE : 49 22.85850 N ! (deg min) LONGITUDE : 126 14.04570 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20231130_181741 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/15 13:40:52 105 105 MERGEHDR 1.3 2026/01/15 13:41:48 105 105 HDREDIT2 3.2 2026/01/15 14:00:56 ? ? REMOVECH 8.2 2026/01/15 14:01:18 105 105 CALIB 12.1 2026/01/16 09:46:08 105 105 CLEAN 5.3 2026/01/16 09:47:04 105 105 $END $REMARKS -HEADER EDITS: 2026/01/15 14:00:56 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 2026/01/15 14:01:18 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:46:08 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 09:47:01 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 10.845 3.35413 4.67863 29.69 1486.43 1022.671 0.45 0.45 10.831 3.35549 4.68241 29.71 1486.41 1022.694 0.75 0.75 10.849 3.35669 4.68174 29.71 1486.47 1022.690 1.05 1.05 10.850 3.35932 4.68524 29.74 1486.51 1022.710 1.35 1.35 10.850 3.36032 4.68669 29.75 1486.53 1022.720 1.65 1.64 10.853 3.36242 4.68911 29.76 1486.57 1022.734 1.95 1.94 10.859 3.36409 4.69077 29.78 1486.61 1022.744 2.25 2.24 10.878 3.36687 4.69216 29.79 1486.69 1022.751 2.55 2.54 10.892 3.37152 4.69676 29.82 1486.79 1022.776 2.85 2.84 10.911 3.37450 4.69848 29.83 1486.88 1022.785 3.15 3.14 10.945 3.39084 4.71666 29.97 1487.17 1022.883 3.45 3.44 11.002 3.40011 4.72216 30.01 1487.42 1022.910 3.75 3.74 11.043 3.40818 4.72793 30.06 1487.63 1022.939 4.05 4.04 11.060 3.41036 4.72872 30.06 1487.70 1022.943 4.35 4.34 11.077 3.41749 4.73633 30.12 1487.84 1022.984 4.65 4.63 11.086 3.41948 4.73795 30.13 1487.89 1022.994 4.95 4.93 11.080 3.41923 4.73837 30.13 1487.87 1022.998 5.25 5.23 11.070 3.41868 4.73896 30.14 1487.85 1023.003 5.55 5.53 11.066 3.41875 4.73962 30.14 1487.84 1023.008 5.85 5.83 11.063 3.42011 4.74182 30.16 1487.86 1023.022 6.15 6.13 11.064 3.42287 4.74554 30.18 1487.90 1023.044 6.45 6.43 11.081 3.42742 4.74964 30.21 1488.00 1023.066 6.75 6.73 11.099 3.43260 4.75446 30.25 1488.11 1023.092 7.05 7.03 11.105 3.43410 4.75574 30.26 1488.15 1023.100 7.35 7.32 11.110 3.43461 4.75576 30.26 1488.17 1023.101 7.65 7.62 11.113 3.43544 4.75648 30.26 1488.19 1023.105 7.95 7.92 11.116 3.43615 4.75714 30.27 1488.21 1023.110 8.25 8.22 11.120 3.43713 4.75792 30.27 1488.24 1023.115 8.55 8.52 11.126 3.43814 4.75860 30.28 1488.27 1023.120 8.85 8.82 11.130 3.43978 4.76030 30.29 1488.30 1023.130 9.15 9.12 11.134 3.44014 4.76026 30.29 1488.32 1023.131 9.45 9.42 11.139 3.43994 4.75937 30.29 1488.34 1023.127 9.75 9.72 11.138 3.43983 4.75934 30.29 1488.34 1023.128 10.05 10.01 11.139 3.43998 4.75934 30.29 1488.35 1023.129 10.35 10.31 11.142 3.44046 4.75961 30.29 1488.37 1023.131 10.65 10.61 11.142 3.44040 4.75959 30.29 1488.37 1023.133 10.95 10.91 11.144 3.44065 4.75965 30.29 1488.38 1023.134 11.25 11.21 11.145 3.44104 4.76008 30.29 1488.40 1023.138 11.55 11.51 11.148 3.44165 4.76049 30.29 1488.42 1023.141 11.85 11.81 11.155 3.44248 4.76071 30.30 1488.45 1023.143 12.15 12.11 11.155 3.44271 4.76110 30.30 1488.45 1023.146 12.45 12.41 11.156 3.44301 4.76134 30.30 1488.47 1023.149 12.75 12.70 11.158 3.44415 4.76268 30.31 1488.49 1023.157 13.05 13.00 11.160 3.44450 4.76288 30.31 1488.50 1023.159 13.35 13.30 11.164 3.44485 4.76280 30.31 1488.52 1023.160 13.65 13.60 11.167 3.44553 4.76340 30.32 1488.54 1023.164 13.95 13.90 11.168 3.44592 4.76370 30.32 1488.56 1023.167 14.25 14.20 11.169 3.44668 4.76463 30.32 1488.57 1023.173 14.55 14.50 11.169 3.44718 4.76544 30.33 1488.58 1023.179 14.85 14.80 11.171 3.44748 4.76549 30.33 1488.60 1023.180 15.15 15.10 11.172 3.44797 4.76607 30.33 1488.61 1023.184 15.45 15.39 11.176 3.44917 4.76721 30.34 1488.64 1023.192 15.75 15.69 11.181 3.44997 4.76766 30.35 1488.66 1023.195 16.05 15.99 11.183 3.45133 4.76925 30.36 1488.69 1023.205 16.35 16.29 11.188 3.45214 4.76975 30.36 1488.72 1023.208 16.65 16.59 11.200 3.45565 4.77300 30.39 1488.79 1023.226 16.95 16.89 11.203 3.45870 4.77676 30.41 1488.84 1023.248 17.25 17.19 11.226 3.46196 4.77834 30.43 1488.94 1023.256 17.55 17.49 11.236 3.46350 4.77912 30.43 1488.99 1023.260 17.85 17.79 11.238 3.46481 4.78059 30.44 1489.02 1023.269 18.15 18.08 11.241 3.46527 4.78081 30.44 1489.04 1023.272 18.45 18.38 11.248 3.46608 4.78102 30.45 1489.07 1023.273 18.75 18.68 11.247 3.46711 4.78263 30.46 1489.08 1023.284 19.05 18.98 11.258 3.46728 4.78142 30.45 1489.12 1023.277 19.35 19.28 11.258 3.46995 4.78511 30.48 1489.15 1023.299 19.65 19.58 11.274 3.47206 4.78588 30.48 1489.22 1023.303 19.95 19.88 11.292 3.47579 4.78861 30.50 1489.32 1023.317 20.25 20.18 11.293 3.48270 4.79798 30.57 1489.40 1023.370 20.55 20.48 11.299 3.48647 4.80245 30.60 1489.47 1023.395 20.85 20.77 11.313 3.48501 4.79857 30.58 1489.49 1023.374 21.15 21.07 11.319 3.48647 4.79983 30.59 1489.53 1023.382 21.45 21.37 11.306 3.48607 4.80098 30.59 1489.49 1023.390 21.75 21.67 11.291 3.48505 4.80151 30.59 1489.45 1023.396 22.05 21.97 11.283 3.48295 4.79969 30.58 1489.41 1023.388 22.35 22.27 11.281 3.48213 4.79885 30.57 1489.40 1023.385 22.65 22.57 11.272 3.48260 4.80063 30.59 1489.39 1023.397 22.95 22.87 11.276 3.48189 4.79915 30.58 1489.39 1023.389 23.25 23.16 11.273 3.48254 4.80040 30.58 1489.40 1023.398 23.55 23.46 11.271 3.48256 4.80082 30.59 1489.40 1023.402 23.85 23.76 11.273 3.48296 4.80104 30.59 1489.41 1023.404 24.15 24.06 11.269 3.48302 4.80160 30.59 1489.41 1023.409 24.45 24.36 11.267 3.48360 4.80267 30.60 1489.42 1023.416 24.75 24.66 11.271 3.48446 4.80339 30.60 1489.44 1023.421 25.05 24.96 11.275 3.48510 4.80371 30.61 1489.46 1023.423 25.35 25.26 11.270 3.48525 4.80465 30.61 1489.46 1023.430 25.65 25.56 11.272 3.48632 4.80574 30.62 1489.48 1023.437 25.95 25.85 11.272 3.48818 4.80839 30.64 1489.51 1023.453 26.25 26.15 11.274 3.48863 4.80872 30.64 1489.52 1023.456 26.55 26.45 11.274 3.48914 4.80947 30.65 1489.53 1023.462 26.85 26.75 11.279 3.48995 4.80982 30.65 1489.56 1023.464 27.15 27.05 11.285 3.49002 4.80922 30.65 1489.58 1023.462 27.45 27.35 11.282 3.49111 4.81112 30.66 1489.59 1023.474 27.75 27.65 11.280 3.49119 4.81143 30.66 1489.59 1023.477 28.05 27.95 11.285 3.49101 4.81054 30.66 1489.61 1023.473 28.35 28.24 11.289 3.49204 4.81137 30.66 1489.63 1023.478 28.65 28.54 11.293 3.49156 4.81026 30.65 1489.64 1023.473 28.95 28.84 11.295 3.49198 4.81059 30.66 1489.66 1023.476 29.25 29.14 11.294 3.49219 4.81093 30.66 1489.66 1023.479 29.55 29.44 11.296 3.49312 4.81202 30.67 1489.68 1023.486 29.85 29.74 11.300 3.49434 4.81311 30.67 1489.71 1023.493 30.15 30.04 11.305 3.49443 4.81259 30.67 1489.73 1023.491 30.45 30.34 11.305 3.49423 4.81235 30.67 1489.73 1023.491 30.75 30.63 11.303 3.49424 4.81261 30.67 1489.73 1023.494 31.05 30.93 11.293 3.49374 4.81329 30.67 1489.70 1023.500 31.33 31.21 11.286 3.49327 4.81352 30.68 1489.69 1023.503