*2026/01/16 10:37:43.81 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/21 22:45:01.000 END TIME : UTC 2025/01/21 22:45:25.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 125 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.31 2 Depth metres 0.15 37.25 3 Temperature 'deg C (ITS90)' 9.115 9.212 4 Conductivity S/m 2.86044 3.01834 5 Conductance:Specific S/m 4.19164 4.4165 6 Salinity PSS-78 26.12 27.66 7 Speed:Sound m/s 1475.77 1478.45 8 Density kg/m^3 1020.155 1021.52 $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 : 10 LATITUDE : 49 14.68120 N ! (deg min) LONGITUDE : 125 51.07300 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250121_224501 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:23 125 125 MERGEHDR 1.3 2026/01/16 10:35:37 125 125 HDREDIT2 3.2 2026/01/16 10:36:08 ? ? REMOVECH 8.2 2026/01/16 10:36:36 125 125 CALIB 12.1 2026/01/16 10:37:09 125 125 CLEAN 5.3 2026/01/16 10:37:43 125 125 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:08 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 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 9.121 2.86044 4.19164 26.12 1475.77 1020.155 0.45 0.45 9.118 2.86176 4.19393 26.13 1475.78 1020.169 0.75 0.75 9.118 2.86666 4.20106 26.18 1475.85 1020.208 1.05 1.05 9.118 2.86701 4.20164 26.18 1475.86 1020.213 1.35 1.35 9.119 2.87085 4.20706 26.22 1475.91 1020.243 1.65 1.65 9.119 2.87326 4.21065 26.25 1475.95 1020.264 1.95 1.95 9.115 2.87513 4.21383 26.27 1475.96 1020.282 2.25 2.25 9.116 2.87782 4.21772 26.29 1476.00 1020.304 2.55 2.55 9.119 2.87887 4.21881 26.30 1476.03 1020.311 2.85 2.85 9.125 2.88405 4.22569 26.35 1476.12 1020.349 3.15 3.15 9.131 2.88834 4.23131 26.39 1476.19 1020.380 3.45 3.45 9.134 2.89197 4.23616 26.42 1476.25 1020.407 3.75 3.75 9.140 2.89887 4.24560 26.49 1476.35 1020.459 4.05 4.05 9.147 2.90111 4.24791 26.50 1476.41 1020.472 4.35 4.35 9.151 2.90337 4.25078 26.52 1476.45 1020.489 4.65 4.65 9.154 2.90521 4.25312 26.54 1476.49 1020.503 4.95 4.95 9.157 2.90519 4.25274 26.54 1476.50 1020.502 5.25 5.24 9.158 2.90510 4.25246 26.54 1476.51 1020.501 5.55 5.54 9.159 2.90682 4.25485 26.55 1476.53 1020.516 5.85 5.84 9.160 2.90695 4.25494 26.55 1476.54 1020.517 6.15 6.14 9.161 2.90735 4.25533 26.56 1476.56 1020.521 6.45 6.44 9.162 2.90758 4.25556 26.56 1476.57 1020.523 6.75 6.74 9.162 2.90868 4.25719 26.57 1476.59 1020.533 7.05 7.04 9.164 2.91014 4.25913 26.58 1476.61 1020.545 7.35 7.34 9.164 2.91107 4.26041 26.59 1476.63 1020.553 7.65 7.64 9.166 2.91238 4.26210 26.60 1476.66 1020.563 7.95 7.94 9.167 2.91339 4.26350 26.61 1476.68 1020.572 8.25 8.24 9.168 2.91363 4.26371 26.61 1476.69 1020.574 8.55 8.54 9.168 2.91412 4.26437 26.62 1476.70 1020.579 8.85 8.84 9.171 2.91606 4.26684 26.64 1476.74 1020.593 9.15 9.14 9.173 2.91642 4.26715 26.64 1476.75 1020.596 9.45 9.44 9.174 2.91651 4.26720 26.64 1476.76 1020.598 9.75 9.74 9.174 2.91709 4.26796 26.64 1476.77 1020.603 10.05 10.04 9.175 2.91728 4.26818 26.64 1476.78 1020.606 10.35 10.34 9.181 2.92169 4.27387 26.68 1476.86 1020.637 10.65 10.64 9.184 2.92290 4.27528 26.69 1476.88 1020.646 10.95 10.94 9.185 2.92454 4.27753 26.71 1476.91 1020.659 11.25 11.24 9.188 2.92673 4.28030 26.73 1476.95 1020.675 11.55 11.54 9.195 2.92997 4.28422 26.76 1477.02 1020.697 11.85 11.84 9.195 2.93377 4.28979 26.79 1477.07 1020.728 12.15 12.14 9.196 2.93786 4.29567 26.84 1477.13 1020.761 12.45 12.44 9.203 2.93932 4.29692 26.84 1477.17 1020.769 12.75 12.74 9.207 2.94162 4.29979 26.86 1477.21 1020.785 13.05 13.04 9.210 2.94323 4.30172 26.88 1477.25 1020.797 13.35 13.34 9.210 2.94532 4.30473 26.90 1477.28 1020.814 13.65 13.63 9.212 2.94610 4.30571 26.91 1477.30 1020.821 13.95 13.93 9.209 2.94788 4.30860 26.93 1477.32 1020.838 14.25 14.23 9.206 2.94815 4.30942 26.93 1477.31 1020.844 14.55 14.53 9.201 2.94908 4.31137 26.94 1477.32 1020.856 14.85 14.83 9.194 2.94984 4.31334 26.96 1477.31 1020.868 15.15 15.13 9.188 2.95248 4.31805 26.99 1477.33 1020.895 15.45 15.43 9.182 2.95427 4.32136 27.01 1477.34 1020.914 15.75 15.73 9.178 2.95424 4.32181 27.01 1477.34 1020.918 16.05 16.03 9.176 2.95606 4.32478 27.03 1477.36 1020.936 16.35 16.33 9.172 2.95647 4.32580 27.04 1477.36 1020.943 16.65 16.63 9.168 2.95815 4.32889 27.06 1477.37 1020.961 16.95 16.93 9.168 2.95965 4.33099 27.07 1477.39 1020.973 17.25 17.23 9.169 2.96044 4.33208 27.08 1477.41 1020.981 17.55 17.53 9.171 2.96080 4.33231 27.08 1477.42 1020.983 17.85 17.83 9.173 2.96079 4.33212 27.08 1477.43 1020.983 18.15 18.13 9.174 2.96124 4.33256 27.08 1477.45 1020.987 18.45 18.43 9.176 2.96111 4.33220 27.08 1477.46 1020.986 18.75 18.73 9.175 2.96168 4.33306 27.09 1477.47 1020.992 19.05 19.03 9.178 2.96165 4.33273 27.09 1477.48 1020.991 19.35 19.33 9.178 2.96182 4.33289 27.09 1477.49 1020.993 19.65 19.63 9.178 2.96139 4.33235 27.08 1477.48 1020.992 19.95 19.92 9.178 2.96166 4.33276 27.09 1477.49 1020.995 20.25 20.22 9.178 2.96238 4.33378 27.09 1477.51 1021.002 20.55 20.52 9.178 2.96224 4.33351 27.09 1477.51 1021.002 20.85 20.82 9.178 2.96250 4.33398 27.09 1477.52 1021.006 21.15 21.12 9.177 2.96322 4.33511 27.10 1477.53 1021.013 21.45 21.42 9.177 2.96430 4.33669 27.11 1477.55 1021.023 21.75 21.72 9.176 2.96464 4.33727 27.12 1477.55 1021.027 22.05 22.02 9.177 2.96396 4.33614 27.11 1477.55 1021.023 22.35 22.32 9.177 2.96467 4.33728 27.12 1477.56 1021.030 22.65 22.62 9.175 2.96585 4.33925 27.13 1477.58 1021.042 22.95 22.92 9.175 2.96690 4.34079 27.14 1477.60 1021.052 23.25 23.22 9.170 2.96781 4.34277 27.15 1477.60 1021.064 23.55 23.52 9.167 2.96998 4.34626 27.18 1477.62 1021.084 23.85 23.82 9.167 2.97092 4.34769 27.19 1477.64 1021.093 24.15 24.12 9.167 2.97168 4.34871 27.19 1477.65 1021.100 24.45 24.42 9.166 2.97308 4.35093 27.21 1477.67 1021.113 24.75 24.72 9.163 2.97439 4.35329 27.22 1477.68 1021.127 25.05 25.02 9.162 2.97588 4.35554 27.24 1477.70 1021.141 25.35 25.32 9.160 2.97612 4.35613 27.24 1477.71 1021.145 25.65 25.62 9.159 2.97589 4.35590 27.24 1477.71 1021.145 25.95 25.92 9.159 2.97640 4.35670 27.25 1477.72 1021.151 26.25 26.21 9.159 2.97661 4.35702 27.25 1477.72 1021.154 26.55 26.51 9.157 2.97677 4.35754 27.25 1477.72 1021.158 26.85 26.81 9.157 2.97764 4.35879 27.26 1477.74 1021.166 27.15 27.11 9.159 2.97871 4.36011 27.27 1477.76 1021.174 27.45 27.41 9.161 2.98247 4.36532 27.31 1477.82 1021.204 27.75 27.71 9.162 2.98417 4.36761 27.32 1477.85 1021.217 28.05 28.01 9.165 2.98956 4.37513 27.37 1477.93 1021.259 28.35 28.31 9.167 2.99381 4.38118 27.42 1477.99 1021.293 28.65 28.61 9.167 2.99578 4.38407 27.44 1478.02 1021.310 28.95 28.91 9.166 2.99623 4.38482 27.44 1478.03 1021.315 29.25 29.21 9.164 2.99734 4.38663 27.45 1478.04 1021.326 29.55 29.51 9.165 2.99784 4.38735 27.46 1478.05 1021.331 29.85 29.81 9.166 2.99798 4.38737 27.46 1478.06 1021.333 30.15 30.11 9.167 2.99908 4.38881 27.47 1478.09 1021.342 30.45 30.41 9.169 3.00050 4.39068 27.48 1478.11 1021.353 30.75 30.71 9.171 3.00045 4.39040 27.48 1478.12 1021.353 31.05 31.01 9.171 3.00153 4.39188 27.49 1478.14 1021.362 31.35 31.31 9.172 3.00187 4.39224 27.49 1478.15 1021.365 31.65 31.60 9.173 3.00244 4.39306 27.50 1478.17 1021.371 31.95 31.90 9.173 3.00281 4.39349 27.50 1478.18 1021.374 32.25 32.20 9.173 3.00318 4.39407 27.50 1478.19 1021.379 32.55 32.50 9.173 3.00425 4.39571 27.51 1478.20 1021.389 32.85 32.80 9.173 3.00473 4.39641 27.52 1478.21 1021.394 33.15 33.10 9.173 3.00583 4.39798 27.53 1478.23 1021.404 33.45 33.40 9.173 3.00607 4.39837 27.53 1478.24 1021.407 33.75 33.70 9.172 3.00687 4.39960 27.54 1478.25 1021.415 34.05 34.00 9.172 3.00691 4.39963 27.54 1478.26 1021.416 34.35 34.30 9.172 3.00745 4.40042 27.55 1478.27 1021.422 34.65 34.60 9.173 3.00939 4.40324 27.57 1478.30 1021.438 34.95 34.90 9.173 3.01180 4.40665 27.59 1478.34 1021.458 35.25 35.20 9.174 3.01301 4.40837 27.60 1478.36 1021.469 35.55 35.50 9.174 3.01361 4.40924 27.61 1478.37 1021.475 35.85 35.80 9.174 3.01404 4.40981 27.61 1478.38 1021.479 36.15 36.10 9.173 3.01414 4.41008 27.61 1478.38 1021.482 36.45 36.39 9.173 3.01475 4.41097 27.62 1478.40 1021.488 36.75 36.69 9.173 3.01644 4.41350 27.64 1478.42 1021.503 37.05 36.99 9.171 3.01834 4.41650 27.66 1478.44 1021.520 37.31 37.25 9.172 3.01798 4.41590 27.65 1478.45 1021.518