*2026/01/16 09:57:54.65 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/09/04 22:42:41.000 END TIME : UTC 2024/09/04 22:43:07.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 132 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 39.45 2 Depth metres 0.15 39.28 3 Temperature 'deg C (ITS90)' 9.418 18.538 4 Conductivity S/m 3.48712 3.75652 5 Conductance:Specific S/m 4.27131 5.06758 6 Salinity PSS-78 27.32 32.24 7 Speed:Sound m/s 1484.98 1508.69 8 Density kg/m^3 1019.277 1025.07 $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 : 245 LATITUDE : 48 55.18080 N ! (deg min) LONGITUDE : 125 1.44480 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240904_224241 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:06 132 132 MERGEHDR 1.3 2026/01/16 09:54:06 132 132 HDREDIT2 3.2 2026/01/16 09:55:11 ? ? REMOVECH 8.2 2026/01/16 09:56:22 132 132 CALIB 12.1 2026/01/16 09:56:55 132 132 CLEAN 5.3 2026/01/16 09:57:54 132 132 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:11 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 09:56:22 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:55 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 18.538 3.71929 4.27131 27.32 1508.69 1019.277 0.45 0.45 18.346 3.70515 4.27395 27.33 1508.14 1019.333 0.75 0.75 18.082 3.70839 4.30387 27.54 1507.59 1019.551 1.05 1.05 18.056 3.70803 4.30609 27.55 1507.53 1019.570 1.35 1.35 17.726 3.70429 4.33495 27.74 1506.76 1019.795 1.65 1.65 17.326 3.71011 4.38280 28.07 1505.93 1020.135 1.95 1.95 17.191 3.71916 4.40750 28.24 1505.71 1020.297 2.25 2.25 17.029 3.72995 4.43736 28.44 1505.46 1020.492 2.55 2.55 16.773 3.73839 4.47467 28.69 1504.97 1020.745 2.85 2.85 16.526 3.74208 4.50566 28.90 1504.45 1020.961 3.15 3.15 15.999 3.74588 4.56822 29.32 1503.29 1021.398 3.45 3.45 15.555 3.75391 4.62821 29.72 1502.36 1021.805 3.75 3.75 15.201 3.75556 4.67101 30.00 1501.57 1022.099 4.05 4.05 14.838 3.75652 4.71479 30.29 1500.74 1022.399 4.35 4.34 14.456 3.75487 4.75832 30.58 1499.85 1022.699 4.65 4.64 14.121 3.75280 4.79643 30.82 1499.05 1022.959 4.95 4.94 13.681 3.74471 4.84045 31.10 1497.93 1023.265 5.25 5.24 13.253 3.71517 4.85600 31.18 1496.60 1023.409 5.55 5.54 12.978 3.70489 4.87766 31.31 1495.84 1023.564 5.85 5.84 12.776 3.68224 4.87375 31.26 1495.11 1023.569 6.15 6.14 12.506 3.67042 4.89318 31.37 1494.33 1023.709 6.45 6.44 12.262 3.66069 4.91208 31.49 1493.63 1023.842 6.75 6.74 12.115 3.65215 4.92002 31.53 1493.19 1023.903 7.05 7.03 11.978 3.64464 4.92811 31.57 1492.77 1023.964 7.35 7.33 11.865 3.64067 4.93788 31.63 1492.45 1024.031 7.65 7.63 11.793 3.63689 4.94237 31.65 1492.24 1024.064 7.95 7.93 11.745 3.63456 4.94560 31.67 1492.10 1024.088 8.25 8.23 11.704 3.63218 4.94799 31.68 1491.97 1024.106 8.55 8.53 11.666 3.63052 4.95079 31.70 1491.87 1024.127 8.85 8.83 11.628 3.62910 4.95396 31.72 1491.76 1024.149 9.15 9.12 11.603 3.62663 4.95401 31.72 1491.68 1024.153 9.45 9.42 11.561 3.62676 4.95985 31.75 1491.58 1024.191 9.75 9.72 11.512 3.62217 4.96018 31.75 1491.41 1024.199 10.05 10.02 11.480 3.61852 4.95954 31.74 1491.30 1024.199 10.35 10.32 11.437 3.61577 4.96161 31.75 1491.16 1024.216 10.65 10.62 11.406 3.61427 4.96389 31.76 1491.07 1024.233 10.95 10.92 11.389 3.61325 4.96481 31.77 1491.02 1024.241 11.25 11.21 11.365 3.61174 4.96592 31.77 1490.95 1024.251 11.55 11.51 11.335 3.60973 4.96733 31.78 1490.86 1024.262 11.85 11.81 11.313 3.60903 4.96937 31.79 1490.80 1024.277 12.15 12.11 11.295 3.60940 4.97225 31.81 1490.77 1024.296 12.45 12.41 11.276 3.60676 4.97125 31.80 1490.69 1024.293 12.75 12.71 11.262 3.60417 4.96967 31.79 1490.63 1024.287 13.05 13.01 11.241 3.60354 4.97169 31.80 1490.58 1024.301 13.35 13.30 11.228 3.60291 4.97255 31.80 1490.54 1024.308 13.65 13.60 11.218 3.60231 4.97308 31.81 1490.52 1024.314 13.95 13.90 11.204 3.60187 4.97442 31.81 1490.48 1024.323 14.25 14.20 11.197 3.60242 4.97617 31.83 1490.47 1024.335 14.55 14.50 11.181 3.60010 4.97514 31.82 1490.41 1024.332 14.85 14.80 11.152 3.59802 4.97618 31.82 1490.32 1024.342 15.15 15.10 11.133 3.59727 4.97780 31.83 1490.27 1024.354 15.45 15.39 11.121 3.59711 4.97918 31.84 1490.24 1024.363 15.75 15.69 11.117 3.59649 4.97896 31.84 1490.23 1024.364 16.05 15.99 11.115 3.59692 4.97982 31.84 1490.23 1024.370 16.35 16.29 11.105 3.59533 4.97904 31.83 1490.19 1024.368 16.65 16.59 11.079 3.59353 4.98010 31.84 1490.11 1024.377 16.95 16.89 11.058 3.59170 4.98042 31.84 1490.05 1024.382 17.25 17.19 11.033 3.58970 4.98119 31.84 1489.96 1024.390 17.55 17.48 11.007 3.58755 4.98169 31.84 1489.88 1024.396 17.85 17.78 10.977 3.58519 4.98258 31.84 1489.78 1024.405 18.15 18.08 10.943 3.58292 4.98414 31.85 1489.68 1024.417 18.45 18.38 10.911 3.58076 4.98565 31.86 1489.57 1024.430 18.75 18.68 10.889 3.57978 4.98731 31.87 1489.51 1024.442 19.05 18.98 10.872 3.57721 4.98602 31.86 1489.44 1024.438 19.35 19.28 10.848 3.57650 4.98837 31.87 1489.38 1024.454 19.65 19.57 10.822 3.57524 4.99026 31.88 1489.31 1024.468 19.95 19.87 10.811 3.57407 4.99022 31.88 1489.27 1024.469 20.25 20.17 10.786 3.57268 4.99175 31.89 1489.19 1024.481 20.55 20.47 10.759 3.57179 4.99430 31.90 1489.12 1024.499 20.85 20.77 10.733 3.57028 4.99578 31.91 1489.04 1024.510 21.15 21.07 10.716 3.56868 4.99592 31.91 1488.99 1024.514 21.45 21.36 10.667 3.56613 4.99918 31.92 1488.84 1024.537 21.75 21.66 10.640 3.56365 4.99957 31.92 1488.74 1024.542 22.05 21.96 10.623 3.56118 4.99839 31.91 1488.68 1024.538 22.35 22.26 10.602 3.55956 4.99911 31.92 1488.61 1024.545 22.65 22.56 10.578 3.55796 5.00021 31.92 1488.53 1024.554 22.95 22.86 10.558 3.55799 5.00304 31.94 1488.49 1024.573 23.25 23.16 10.539 3.55705 5.00446 31.95 1488.43 1024.583 23.55 23.45 10.527 3.55570 5.00416 31.94 1488.39 1024.584 23.85 23.75 10.513 3.55477 5.00492 31.95 1488.35 1024.590 24.15 24.05 10.498 3.55416 5.00608 31.95 1488.31 1024.599 24.45 24.35 10.482 3.55396 5.00806 31.96 1488.27 1024.612 24.75 24.65 10.465 3.55316 5.00933 31.97 1488.23 1024.622 25.05 24.95 10.447 3.55232 5.01073 31.98 1488.18 1024.632 25.35 25.25 10.430 3.54923 5.00874 31.96 1488.10 1024.624 25.65 25.54 10.409 3.54784 5.00973 31.97 1488.04 1024.632 25.95 25.84 10.393 3.54852 5.01303 31.99 1488.01 1024.653 26.25 26.14 10.382 3.54725 5.01279 31.98 1487.97 1024.653 26.55 26.44 10.373 3.54703 5.01381 31.99 1487.95 1024.661 26.85 26.74 10.330 3.54361 5.01507 31.99 1487.80 1024.672 27.15 27.04 10.296 3.54055 5.01545 31.99 1487.69 1024.678 27.45 27.33 10.264 3.53893 5.01771 32.00 1487.59 1024.694 27.75 27.63 10.245 3.53702 5.01775 32.00 1487.52 1024.697 28.05 27.93 10.207 3.53569 5.02128 32.02 1487.42 1024.720 28.35 28.23 10.161 3.53310 5.02422 32.04 1487.27 1024.741 28.65 28.53 10.127 3.52684 5.02007 32.00 1487.11 1024.721 28.95 28.83 10.088 3.52408 5.02176 32.01 1486.99 1024.735 29.25 29.13 10.056 3.52451 5.02691 32.04 1486.92 1024.766 29.55 29.42 10.040 3.52448 5.02929 32.06 1486.88 1024.782 29.85 29.72 10.028 3.52378 5.02992 32.06 1486.84 1024.787 30.15 30.02 10.002 3.52192 5.03096 32.06 1486.76 1024.796 30.45 30.32 9.987 3.52050 5.03119 32.06 1486.71 1024.800 30.75 30.62 9.958 3.51918 5.03348 32.07 1486.62 1024.815 31.05 30.92 9.939 3.51888 5.03568 32.09 1486.58 1024.830 31.35 31.21 9.925 3.51859 5.03742 32.10 1486.54 1024.842 31.65 31.51 9.909 3.51522 5.03484 32.08 1486.46 1024.830 31.95 31.81 9.877 3.51337 5.03674 32.09 1486.37 1024.843 32.25 32.11 9.842 3.51189 5.03968 32.10 1486.26 1024.863 32.55 32.41 9.821 3.51153 5.04227 32.12 1486.21 1024.880 32.85 32.71 9.805 3.50880 5.04066 32.10 1486.14 1024.873 33.15 33.00 9.763 3.50737 5.04468 32.13 1486.02 1024.899 33.45 33.30 9.738 3.50519 5.04523 32.13 1485.93 1024.905 33.75 33.60 9.720 3.50337 5.04514 32.12 1485.87 1024.906 34.05 33.90 9.684 3.50298 5.04980 32.15 1485.78 1024.936 34.35 34.20 9.662 3.49943 5.04788 32.14 1485.68 1024.927 34.65 34.50 9.616 3.49802 5.05267 32.16 1485.55 1024.958 34.95 34.79 9.593 3.49633 5.05352 32.17 1485.48 1024.965 35.25 35.09 9.584 3.49581 5.05406 32.17 1485.45 1024.970 35.55 35.39 9.583 3.49585 5.05427 32.17 1485.45 1024.972 35.85 35.69 9.572 3.49497 5.05466 32.17 1485.42 1024.976 36.15 35.99 9.563 3.49453 5.05537 32.17 1485.39 1024.982 36.45 36.29 9.564 3.49510 5.05594 32.18 1485.41 1024.986 36.75 36.59 9.559 3.49384 5.05496 32.17 1485.39 1024.982 37.05 36.88 9.551 3.49439 5.05684 32.18 1485.38 1024.995 37.35 37.18 9.547 3.49429 5.05727 32.18 1485.37 1024.998 37.65 37.48 9.539 3.49327 5.05702 32.18 1485.34 1024.999 37.95 37.78 9.528 3.49158 5.05617 32.17 1485.30 1024.996 38.25 38.08 9.507 3.49110 5.05848 32.19 1485.24 1025.011 38.55 38.38 9.501 3.49170 5.06026 32.20 1485.24 1025.022 38.85 38.67 9.488 3.48729 5.05587 32.17 1485.15 1025.000 39.15 38.97 9.418 3.48712 5.06588 32.23 1484.98 1025.060 39.45 39.28 9.425 3.48906 5.06758 32.24 1485.03 1025.070