*2026/01/16 10:37:49.56 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/03/11 16:34:45.000 END TIME : UTC 2025/03/11 16:35:12.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 139 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 41.64 2 Depth metres 0.15 41.6 3 Temperature 'deg C (ITS90)' 7.919 8.547 4 Conductivity S/m 2.01902 2.9269 5 Conductance:Specific S/m 3.06667 4.36774 6 Salinity PSS-78 18.44 27.24 7 Speed:Sound m/s 1461.71 1475.5 8 Density kg/m^3 1014.313 1021.304 $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 : 74 LATITUDE : 49 11.23060 N ! (deg min) LONGITUDE : 125 46.42560 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250311_163445 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:26 139 139 MERGEHDR 1.3 2026/01/16 10:35:41 139 139 HDREDIT2 3.2 2026/01/16 10:36:11 ? ? REMOVECH 8.2 2026/01/16 10:36:38 139 139 CALIB 12.1 2026/01/16 10:37:13 139 139 CLEAN 5.3 2026/01/16 10:37:49 139 139 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:11 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:13 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 7.919 2.01902 3.06667 18.44 1461.71 1014.313 0.45 0.45 8.108 2.04184 3.08365 18.57 1462.62 1014.393 0.75 0.75 8.233 2.13331 3.20965 19.41 1464.15 1015.037 1.05 1.05 8.305 2.27002 3.40788 20.73 1466.07 1016.062 1.35 1.36 8.349 2.34822 3.52072 21.49 1467.17 1016.650 1.65 1.66 8.384 2.43216 3.64270 22.31 1468.32 1017.288 1.95 1.96 8.388 2.50972 3.75839 23.09 1469.30 1017.898 2.25 2.26 8.389 2.54226 3.80699 23.42 1469.71 1018.155 2.55 2.56 8.402 2.56399 3.83806 23.63 1470.02 1018.320 2.85 2.86 8.420 2.58274 3.86401 23.80 1470.31 1018.458 3.15 3.16 8.439 2.62865 3.93046 24.26 1470.95 1018.810 3.45 3.46 8.451 2.68185 4.00867 24.79 1471.65 1019.226 3.75 3.76 8.468 2.69907 4.03231 24.95 1471.92 1019.352 4.05 4.06 8.478 2.70339 4.03753 24.99 1472.01 1019.381 4.35 4.36 8.489 2.70669 4.04117 25.01 1472.09 1019.401 4.65 4.66 8.499 2.71080 4.04608 25.05 1472.17 1019.428 4.95 4.96 8.508 2.73919 4.08736 25.33 1472.56 1019.649 5.25 5.26 8.517 2.76046 4.11795 25.54 1472.86 1019.813 5.55 5.56 8.525 2.79031 4.16153 25.84 1473.26 1020.047 5.85 5.86 8.533 2.81427 4.19621 26.08 1473.59 1020.233 6.15 6.16 8.539 2.83385 4.22473 26.27 1473.85 1020.387 6.45 6.46 8.541 2.84463 4.24059 26.38 1474.00 1020.473 6.75 6.76 8.542 2.84645 4.24310 26.40 1474.03 1020.488 7.05 7.06 8.545 2.84809 4.24515 26.41 1474.06 1020.500 7.35 7.36 8.545 2.84991 4.24785 26.43 1474.09 1020.515 7.65 7.66 8.545 2.85088 4.24933 26.44 1474.11 1020.525 7.95 7.96 8.544 2.85108 4.24972 26.44 1474.11 1020.528 8.25 8.26 8.546 2.85208 4.25101 26.45 1474.14 1020.536 8.55 8.55 8.545 2.85279 4.25218 26.46 1474.15 1020.544 8.85 8.85 8.545 2.85420 4.25423 26.47 1474.17 1020.556 9.15 9.15 8.545 2.85675 4.25810 26.50 1474.21 1020.578 9.45 9.45 8.546 2.85985 4.26260 26.53 1474.25 1020.604 9.75 9.75 8.547 2.86271 4.26674 26.56 1474.30 1020.627 10.05 10.05 8.546 2.86653 4.27247 26.60 1474.35 1020.659 10.35 10.35 8.544 2.86842 4.27555 26.62 1474.37 1020.677 10.65 10.65 8.544 2.86851 4.27575 26.62 1474.37 1020.679 10.95 10.95 8.544 2.86975 4.27754 26.63 1474.40 1020.690 11.25 11.25 8.544 2.87218 4.28123 26.66 1474.43 1020.711 11.55 11.55 8.543 2.87749 4.28922 26.71 1474.50 1020.756 11.85 11.85 8.544 2.87961 4.29227 26.73 1474.53 1020.773 12.15 12.15 8.543 2.88069 4.29403 26.75 1474.55 1020.784 12.45 12.45 8.544 2.88147 4.29508 26.75 1474.57 1020.791 12.75 12.75 8.543 2.88166 4.29547 26.76 1474.57 1020.794 13.05 13.05 8.543 2.88162 4.29542 26.76 1474.57 1020.795 13.35 13.35 8.542 2.88192 4.29597 26.76 1474.58 1020.800 13.65 13.65 8.543 2.88289 4.29730 26.77 1474.60 1020.808 13.95 13.95 8.544 2.88392 4.29872 26.78 1474.62 1020.817 14.25 14.25 8.542 2.88769 4.30457 26.82 1474.67 1020.850 14.55 14.55 8.541 2.89049 4.30891 26.85 1474.70 1020.874 14.85 14.85 8.539 2.89362 4.31377 26.88 1474.74 1020.902 15.15 15.15 8.538 2.89398 4.31446 26.89 1474.75 1020.907 15.45 15.45 8.538 2.89342 4.31369 26.88 1474.75 1020.904 15.75 15.75 8.539 2.89426 4.31476 26.89 1474.76 1020.911 16.05 16.04 8.539 2.89419 4.31471 26.89 1474.77 1020.912 16.35 16.34 8.537 2.89444 4.31527 26.89 1474.77 1020.916 16.65 16.64 8.536 2.89414 4.31492 26.89 1474.77 1020.916 16.95 16.94 8.536 2.89545 4.31687 26.90 1474.79 1020.928 17.25 17.24 8.536 2.89440 4.31532 26.89 1474.78 1020.921 17.55 17.54 8.535 2.89562 4.31726 26.90 1474.80 1020.932 17.85 17.84 8.535 2.89600 4.31784 26.91 1474.81 1020.937 18.15 18.14 8.533 2.89826 4.32147 26.93 1474.84 1020.958 18.45 18.44 8.531 2.89925 4.32322 26.94 1474.85 1020.968 18.75 18.74 8.531 2.90028 4.32479 26.95 1474.86 1020.978 19.05 19.04 8.531 2.90057 4.32526 26.96 1474.87 1020.982 19.35 19.34 8.529 2.90163 4.32702 26.97 1474.89 1020.993 19.65 19.64 8.529 2.90169 4.32708 26.97 1474.89 1020.994 19.95 19.94 8.526 2.90227 4.32843 26.98 1474.89 1021.003 20.25 20.24 8.520 2.90198 4.32875 26.98 1474.88 1021.006 20.55 20.54 8.519 2.90348 4.33105 26.99 1474.90 1021.020 20.85 20.84 8.519 2.90421 4.33221 27.00 1474.91 1021.028 21.15 21.14 8.518 2.90517 4.33375 27.01 1474.93 1021.037 21.45 21.44 8.519 2.90601 4.33482 27.02 1474.95 1021.044 21.75 21.74 8.519 2.90565 4.33438 27.02 1474.94 1021.043 22.05 22.04 8.516 2.90655 4.33600 27.03 1474.95 1021.053 22.35 22.33 8.516 2.90658 4.33613 27.03 1474.96 1021.055 22.65 22.63 8.513 2.90705 4.33725 27.04 1474.96 1021.063 22.95 22.93 8.513 2.90755 4.33799 27.04 1474.97 1021.068 23.25 23.23 8.512 2.90785 4.33846 27.04 1474.98 1021.072 23.55 23.53 8.511 2.90851 4.33961 27.05 1474.99 1021.079 23.85 23.83 8.509 2.90910 4.34077 27.06 1474.99 1021.087 24.15 24.13 8.508 2.90867 4.34026 27.06 1474.99 1021.085 24.45 24.43 8.509 2.90948 4.34140 27.06 1475.01 1021.093 24.75 24.73 8.507 2.91023 4.34270 27.07 1475.02 1021.101 25.05 25.03 8.505 2.91065 4.34361 27.08 1475.02 1021.107 25.35 25.33 8.504 2.91238 4.34635 27.10 1475.04 1021.123 25.65 25.63 8.505 2.91332 4.34757 27.10 1475.06 1021.131 25.95 25.93 8.507 2.91494 4.34971 27.12 1475.10 1021.144 26.25 26.23 8.508 2.91586 4.35099 27.13 1475.11 1021.152 26.55 26.53 8.509 2.91611 4.35125 27.13 1475.12 1021.155 26.85 26.83 8.509 2.91630 4.35147 27.13 1475.13 1021.157 27.15 27.13 8.509 2.91658 4.35198 27.13 1475.14 1021.161 27.45 27.43 8.508 2.91711 4.35280 27.14 1475.15 1021.167 27.75 27.73 8.509 2.91702 4.35258 27.14 1475.16 1021.167 28.05 28.03 8.510 2.91709 4.35262 27.14 1475.16 1021.169 28.35 28.32 8.510 2.91642 4.35159 27.13 1475.16 1021.164 28.65 28.62 8.509 2.91686 4.35235 27.14 1475.17 1021.170 28.95 28.92 8.509 2.91667 4.35207 27.13 1475.17 1021.170 29.25 29.22 8.509 2.91748 4.35329 27.14 1475.18 1021.177 29.55 29.52 8.509 2.91773 4.35362 27.15 1475.19 1021.180 29.85 29.82 8.510 2.91784 4.35368 27.15 1475.20 1021.182 30.15 30.12 8.516 2.91763 4.35264 27.14 1475.22 1021.177 30.45 30.42 8.514 2.91770 4.35300 27.14 1475.22 1021.181 30.75 30.72 8.512 2.91759 4.35303 27.14 1475.22 1021.182 31.05 31.02 8.512 2.91778 4.35331 27.14 1475.23 1021.185 31.35 31.32 8.512 2.91759 4.35309 27.14 1475.23 1021.185 31.65 31.62 8.513 2.91841 4.35419 27.15 1475.25 1021.192 31.95 31.92 8.518 2.91843 4.35351 27.14 1475.27 1021.190 32.25 32.22 8.519 2.91901 4.35431 27.15 1475.28 1021.195 32.55 32.52 8.515 2.91975 4.35585 27.16 1475.28 1021.205 32.85 32.82 8.514 2.91974 4.35600 27.16 1475.28 1021.207 33.15 33.12 8.512 2.91896 4.35510 27.15 1475.27 1021.204 33.45 33.42 8.513 2.91954 4.35584 27.16 1475.29 1021.209 33.75 33.72 8.511 2.92057 4.35766 27.17 1475.30 1021.220 34.05 34.01 8.507 2.92071 4.35835 27.18 1475.30 1021.225 34.35 34.31 8.507 2.92007 4.35739 27.17 1475.29 1021.221 34.65 34.61 8.508 2.92091 4.35849 27.18 1475.31 1021.229 34.95 34.91 8.509 2.92128 4.35901 27.18 1475.32 1021.233 35.25 35.21 8.509 2.92125 4.35891 27.18 1475.33 1021.233 35.55 35.51 8.509 2.92180 4.35976 27.18 1475.34 1021.239 35.85 35.81 8.509 2.92143 4.35918 27.18 1475.34 1021.237 36.15 36.11 8.509 2.92151 4.35926 27.18 1475.35 1021.239 36.45 36.41 8.506 2.92128 4.35930 27.18 1475.34 1021.241 36.75 36.71 8.507 2.92176 4.35992 27.19 1475.35 1021.245 37.05 37.01 8.507 2.92116 4.35905 27.18 1475.35 1021.242 37.35 37.31 8.507 2.92207 4.36033 27.19 1475.37 1021.250 37.65 37.61 8.507 2.92167 4.35977 27.18 1475.37 1021.248 37.95 37.91 8.507 2.92259 4.36117 27.19 1475.38 1021.257 38.25 38.21 8.507 2.92280 4.36149 27.20 1475.39 1021.260 38.55 38.51 8.506 2.92315 4.36207 27.20 1475.40 1021.265 38.85 38.81 8.507 2.92266 4.36128 27.19 1475.40 1021.262 39.15 39.11 8.506 2.92334 4.36238 27.20 1475.41 1021.269 39.45 39.40 8.506 2.92438 4.36391 27.21 1475.43 1021.279 39.75 39.70 8.508 2.92547 4.36530 27.22 1475.45 1021.287 40.05 40.00 8.507 2.92671 4.36736 27.24 1475.47 1021.300 40.35 40.30 8.506 2.92690 4.36774 27.24 1475.47 1021.303 40.65 40.60 8.506 2.92565 4.36589 27.22 1475.46 1021.294 40.95 40.90 8.505 2.92643 4.36717 27.23 1475.47 1021.303 41.25 41.20 8.505 2.92652 4.36726 27.23 1475.48 1021.304 41.64 41.60 8.510 2.92672 4.36699 27.23 1475.50 1021.304