*2026/01/16 09:57:53.61 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/08/13 21:28:09.000 END TIME : UTC 2024/08/13 21:28:24.000 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 76 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 22.77 2 Depth metres 0.15 22.69 3 Temperature 'deg C (ITS90)' 14.126 14.968 4 Conductivity S/m 3.75503 3.80616 5 Conductance:Specific S/m 4.70404 4.86285 6 Salinity PSS-78 30.23 31.29 7 Speed:Sound m/s 1499.82 1501.05 8 Density kg/m^3 1022.305 1023.399 $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 : 2024-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 201 LATITUDE : 49 12.98630 N ! (deg min) LONGITUDE : 125 55.95420 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240813_212809 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:04 76 76 MERGEHDR 1.3 2026/01/16 09:53:59 76 76 HDREDIT2 3.2 2026/01/16 09:55:09 ? ? REMOVECH 8.2 2026/01/16 09:56:20 76 76 CALIB 12.1 2026/01/16 09:56:53 76 76 CLEAN 5.3 2026/01/16 09:57:53 76 76 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:09 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 09:56:20 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:53 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 09:57:46 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 14.954 3.76632 4.71335 30.29 1501.05 1022.357 0.45 0.45 14.968 3.76019 4.70404 30.23 1501.03 1022.305 0.75 0.75 14.952 3.76484 4.71170 30.28 1501.04 1022.350 1.05 1.05 14.907 3.76441 4.71645 30.31 1500.94 1022.385 1.35 1.35 14.898 3.76643 4.72012 30.34 1500.94 1022.408 1.65 1.65 14.854 3.76473 4.72314 30.35 1500.83 1022.433 1.95 1.94 14.881 3.76717 4.72296 30.36 1500.92 1022.429 2.25 2.24 14.834 3.76682 4.72817 30.39 1500.81 1022.466 2.55 2.54 14.786 3.76481 4.73134 30.41 1500.69 1022.492 2.85 2.84 14.746 3.75914 4.72891 30.39 1500.54 1022.486 3.15 3.14 14.715 3.75503 4.72744 30.38 1500.43 1022.484 3.45 3.44 14.692 3.75532 4.73060 30.40 1500.38 1022.506 3.75 3.74 14.668 3.75587 4.73410 30.42 1500.34 1022.530 4.05 4.04 14.649 3.75686 4.73768 30.44 1500.31 1022.554 4.35 4.34 14.635 3.75758 4.74025 30.46 1500.29 1022.572 4.65 4.64 14.626 3.75832 4.74218 30.47 1500.28 1022.585 4.95 4.94 14.623 3.75874 4.74316 30.48 1500.28 1022.592 5.25 5.23 14.620 3.76004 4.74513 30.49 1500.30 1022.605 5.55 5.53 14.619 3.76032 4.74555 30.50 1500.30 1022.609 5.85 5.83 14.619 3.76109 4.74658 30.50 1500.31 1022.615 6.15 6.13 14.608 3.76688 4.75518 30.56 1500.36 1022.666 6.45 6.43 14.592 3.77591 4.76857 30.66 1500.42 1022.743 6.75 6.73 14.581 3.77914 4.77391 30.70 1500.43 1022.776 7.05 7.03 14.563 3.77988 4.77706 30.72 1500.40 1022.797 7.35 7.33 14.550 3.77985 4.77852 30.73 1500.38 1022.808 7.65 7.63 14.537 3.77999 4.78033 30.74 1500.35 1022.821 7.95 7.93 14.523 3.77867 4.78029 30.74 1500.31 1022.824 8.25 8.22 14.507 3.77844 4.78202 30.75 1500.28 1022.838 8.55 8.52 14.494 3.77833 4.78348 30.76 1500.25 1022.849 8.85 8.82 14.487 3.77893 4.78500 30.77 1500.25 1022.860 9.15 9.12 14.482 3.78048 4.78761 30.79 1500.25 1022.876 9.45 9.42 14.477 3.78200 4.79011 30.80 1500.26 1022.892 9.75 9.72 14.470 3.78356 4.79300 30.82 1500.27 1022.910 10.05 10.02 14.467 3.78365 4.79349 30.83 1500.27 1022.915 10.35 10.32 14.466 3.78433 4.79442 30.83 1500.28 1022.921 10.65 10.62 14.465 3.78559 4.79610 30.85 1500.29 1022.932 10.95 10.91 14.464 3.78559 4.79620 30.85 1500.30 1022.934 11.25 11.21 14.465 3.78661 4.79741 30.85 1500.31 1022.941 11.55 11.51 14.449 3.78949 4.80305 30.89 1500.31 1022.976 11.85 11.81 14.392 3.79341 4.81491 30.97 1500.23 1023.051 12.15 12.11 14.347 3.79697 4.82503 31.04 1500.16 1023.115 12.45 12.41 14.306 3.79778 4.83099 31.08 1500.08 1023.155 12.75 12.71 14.274 3.79737 4.83448 31.10 1500.01 1023.181 13.05 13.01 14.252 3.79666 4.83628 31.12 1499.96 1023.195 13.35 13.31 14.241 3.79707 4.83818 31.13 1499.94 1023.208 13.65 13.61 14.230 3.79678 4.83912 31.13 1499.92 1023.216 13.95 13.90 14.218 3.79556 4.83908 31.13 1499.88 1023.219 14.25 14.20 14.204 3.79545 4.84059 31.14 1499.85 1023.231 14.55 14.50 14.197 3.79516 4.84118 31.15 1499.84 1023.236 14.85 14.80 14.192 3.79567 4.84240 31.15 1499.84 1023.245 15.15 15.10 14.191 3.79528 4.84204 31.15 1499.83 1023.244 15.45 15.40 14.192 3.79567 4.84238 31.15 1499.85 1023.247 15.75 15.70 14.194 3.79696 4.84376 31.16 1499.87 1023.256 16.05 16.00 14.198 3.79806 4.84477 31.17 1499.89 1023.262 16.35 16.29 14.201 3.79845 4.84486 31.17 1499.91 1023.264 16.65 16.59 14.202 3.80165 4.84877 31.20 1499.95 1023.286 16.95 16.89 14.205 3.80202 4.84884 31.20 1499.97 1023.287 17.25 17.19 14.207 3.80338 4.85040 31.21 1499.99 1023.297 17.55 17.49 14.207 3.80322 4.85013 31.21 1500.00 1023.297 17.85 17.79 14.207 3.80286 4.84969 31.21 1500.00 1023.296 18.15 18.09 14.198 3.80127 4.84879 31.20 1499.96 1023.293 18.45 18.39 14.195 3.80159 4.84954 31.20 1499.96 1023.299 18.75 18.69 14.192 3.80168 4.85011 31.21 1499.96 1023.304 19.05 18.98 14.186 3.79962 4.84817 31.19 1499.93 1023.295 19.35 19.28 14.173 3.79906 4.84904 31.20 1499.90 1023.303 19.65 19.58 14.154 3.79839 4.85057 31.21 1499.85 1023.316 19.95 19.88 14.133 3.79917 4.85414 31.23 1499.82 1023.340 20.25 20.18 14.126 3.80002 4.85606 31.24 1499.82 1023.353 20.55 20.48 14.132 3.80152 4.85733 31.25 1499.85 1023.360 20.85 20.78 14.135 3.80293 4.85880 31.26 1499.88 1023.369 21.15 21.08 14.136 3.80096 4.85609 31.25 1499.86 1023.355 21.45 21.38 14.131 3.80098 4.85679 31.25 1499.86 1023.361 21.75 21.67 14.128 3.80075 4.85686 31.25 1499.85 1023.363 22.05 21.97 14.126 3.80028 4.85650 31.25 1499.85 1023.363 22.35 22.27 14.127 3.80257 4.85932 31.27 1499.88 1023.379 22.77 22.69 14.135 3.80616 4.86285 31.29 1499.94 1023.399