*2026/01/16 09:57:48.34 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/04/22 22:58:59.000 END TIME : UTC 2024/04/22 22:59:17.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 92 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 27.31 2 Depth metres 0.15 27.2 3 Temperature 'deg C (ITS90)' 10.092 11.62 4 Conductivity S/m 3.21326 3.5082 5 Conductance:Specific S/m 4.39397 4.99784 6 Salinity PSS-78 27.77 31.84 7 Speed:Sound m/s 1484.97 1487.03 8 Density kg/m^3 1021.05 1024.595 $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 : 66 LATITUDE : 49 3.40220 N ! (deg min) LONGITUDE : 124 50.42000 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240422_225859 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:56 92 92 MERGEHDR 1.3 2026/01/16 09:53:48 92 92 HDREDIT2 3.2 2026/01/16 09:55:02 ? ? REMOVECH 8.2 2026/01/16 09:56:14 92 92 CALIB 12.1 2026/01/16 09:56:47 92 92 CLEAN 5.3 2026/01/16 09:57:48 92 92 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:02 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 09:56:14 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:47 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 11.620 3.23198 4.41286 27.90 1487.03 1021.151 0.45 0.45 11.617 3.21786 4.39397 27.77 1486.86 1021.050 0.75 0.75 11.414 3.21777 4.41833 27.92 1486.33 1021.204 1.05 1.05 11.104 3.21496 4.45236 28.13 1485.49 1021.419 1.35 1.35 11.028 3.21326 4.45944 28.17 1485.27 1021.466 1.65 1.65 11.001 3.21447 4.46438 28.20 1485.22 1021.497 1.95 1.95 10.975 3.21931 4.47436 28.27 1485.21 1021.554 2.25 2.25 10.906 3.22276 4.48782 28.36 1485.07 1021.635 2.55 2.54 10.866 3.22661 4.49816 28.43 1485.02 1021.696 2.85 2.84 10.841 3.22914 4.50476 28.47 1484.99 1021.735 3.15 3.14 10.828 3.23181 4.51016 28.50 1484.99 1021.767 3.45 3.44 10.819 3.23237 4.51211 28.52 1484.98 1021.779 3.75 3.74 10.801 3.23633 4.51985 28.57 1484.98 1021.824 4.05 4.04 10.775 3.24111 4.52982 28.64 1484.97 1021.882 4.35 4.34 10.756 3.24597 4.53902 28.70 1484.98 1021.935 4.65 4.64 10.730 3.25028 4.54834 28.76 1484.97 1021.989 4.95 4.94 10.701 3.26285 4.56975 28.91 1485.05 1022.109 5.25 5.24 10.672 3.27008 4.58357 29.00 1485.06 1022.188 5.55 5.54 10.636 3.28205 4.60494 29.15 1485.11 1022.309 5.85 5.84 10.606 3.28781 4.61695 29.23 1485.11 1022.378 6.15 6.14 10.580 3.29207 4.62623 29.29 1485.09 1022.432 6.45 6.43 10.559 3.30354 4.64511 29.42 1485.18 1022.538 6.75 6.73 10.546 3.31674 4.66541 29.56 1485.31 1022.651 7.05 7.03 10.531 3.32513 4.67924 29.66 1485.37 1022.729 7.35 7.33 10.521 3.32950 4.68665 29.71 1485.40 1022.772 7.65 7.63 10.514 3.33279 4.69225 29.75 1485.43 1022.804 7.95 7.93 10.508 3.33634 4.69799 29.78 1485.46 1022.837 8.25 8.23 10.503 3.34320 4.70831 29.86 1485.54 1022.895 8.55 8.53 10.495 3.34695 4.71462 29.90 1485.57 1022.932 8.85 8.83 10.485 3.35116 4.72190 29.95 1485.59 1022.974 9.15 9.13 10.478 3.35588 4.72948 30.00 1485.64 1023.017 9.45 9.42 10.472 3.35747 4.73262 30.02 1485.64 1023.036 9.75 9.72 10.461 3.36366 4.74272 30.09 1485.70 1023.093 10.05 10.02 10.449 3.36646 4.74836 30.13 1485.70 1023.126 10.35 10.32 10.445 3.36733 4.75010 30.14 1485.71 1023.137 10.65 10.62 10.436 3.36895 4.75351 30.17 1485.71 1023.158 10.95 10.92 10.426 3.37297 4.76053 30.21 1485.74 1023.198 11.25 11.22 10.418 3.38227 4.77483 30.31 1485.83 1023.279 11.55 11.52 10.406 3.38901 4.78596 30.39 1485.88 1023.342 11.85 11.82 10.388 3.40079 4.80500 30.52 1485.98 1023.449 12.15 12.11 10.373 3.40771 4.81678 30.60 1486.03 1023.516 12.45 12.41 10.362 3.42738 4.84619 30.81 1486.25 1023.679 12.75 12.71 10.354 3.43865 4.86313 30.93 1486.37 1023.774 13.05 13.01 10.343 3.44422 4.87252 30.99 1486.41 1023.828 13.35 13.31 10.334 3.44871 4.88013 31.05 1486.45 1023.872 13.65 13.61 10.319 3.45782 4.89511 31.15 1486.52 1023.956 13.95 13.91 10.308 3.46406 4.90553 31.22 1486.58 1024.016 14.25 14.21 10.297 3.47443 4.92173 31.33 1486.68 1024.107 14.55 14.50 10.280 3.48077 4.93302 31.41 1486.72 1024.172 14.85 14.80 10.265 3.48803 4.94544 31.50 1486.77 1024.242 15.15 15.10 10.256 3.49175 4.95203 31.54 1486.80 1024.281 15.45 15.40 10.247 3.49357 4.95583 31.57 1486.80 1024.303 15.75 15.70 10.243 3.49358 4.95640 31.57 1486.80 1024.308 16.05 16.00 10.241 3.49363 4.95681 31.57 1486.80 1024.312 16.35 16.30 10.239 3.49376 4.95729 31.58 1486.80 1024.316 16.65 16.59 10.234 3.49437 4.95878 31.59 1486.80 1024.326 16.95 16.89 10.231 3.49433 4.95911 31.59 1486.80 1024.329 17.25 17.19 10.231 3.49443 4.95933 31.59 1486.80 1024.331 17.55 17.49 10.228 3.49461 4.96006 31.59 1486.80 1024.337 17.85 17.79 10.221 3.49554 4.96235 31.61 1486.80 1024.351 18.15 18.09 10.204 3.49873 4.96920 31.66 1486.80 1024.391 18.45 18.39 10.200 3.49979 4.97133 31.67 1486.81 1024.405 18.75 18.68 10.193 3.50233 4.97593 31.70 1486.82 1024.432 19.05 18.98 10.180 3.50326 4.97902 31.72 1486.81 1024.451 19.35 19.28 10.171 3.50406 4.98148 31.74 1486.80 1024.466 19.65 19.58 10.165 3.50436 4.98271 31.75 1486.79 1024.475 19.95 19.88 10.160 3.50407 4.98301 31.75 1486.78 1024.478 20.25 20.18 10.158 3.50464 4.98413 31.76 1486.79 1024.486 20.55 20.47 10.159 3.50498 4.98452 31.76 1486.80 1024.489 20.85 20.77 10.158 3.50523 4.98499 31.76 1486.80 1024.493 21.15 21.07 10.156 3.50504 4.98506 31.76 1486.80 1024.495 21.45 21.37 10.152 3.50527 4.98581 31.77 1486.80 1024.500 21.75 21.67 10.153 3.50531 4.98580 31.77 1486.81 1024.502 22.05 21.97 10.148 3.50571 4.98700 31.77 1486.81 1024.510 22.35 22.27 10.148 3.50585 4.98723 31.78 1486.81 1024.512 22.65 22.56 10.147 3.50663 4.98849 31.78 1486.82 1024.521 22.95 22.86 10.145 3.50618 4.98816 31.78 1486.82 1024.520 23.25 23.16 10.143 3.50640 4.98875 31.78 1486.82 1024.525 23.55 23.46 10.140 3.50593 4.98853 31.78 1486.81 1024.525 23.85 23.76 10.134 3.50599 4.98938 31.79 1486.80 1024.531 24.15 24.06 10.132 3.50691 4.99103 31.80 1486.81 1024.542 24.45 24.36 10.130 3.50694 4.99142 31.80 1486.81 1024.546 24.75 24.65 10.128 3.50628 4.99070 31.80 1486.80 1024.543 25.05 24.95 10.125 3.50707 4.99224 31.81 1486.81 1024.553 25.35 25.25 10.129 3.50792 4.99294 31.81 1486.83 1024.558 25.65 25.55 10.130 3.50820 4.99313 31.81 1486.85 1024.560 25.95 25.85 10.124 3.50745 4.99301 31.81 1486.83 1024.561 26.25 26.15 10.122 3.50733 4.99305 31.81 1486.82 1024.563 26.55 26.44 10.113 3.50731 4.99428 31.82 1486.81 1024.571 26.85 26.74 10.103 3.50694 4.99523 31.82 1486.78 1024.578 27.15 27.04 10.092 3.50741 4.99748 31.84 1486.76 1024.593 27.31 27.20 10.092 3.50773 4.99784 31.84 1486.77 1024.595