*2026/01/16 09:57:58.09 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/12/11 21:50:07.000 END TIME : UTC 2024/12/11 21:50:24.200 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 87 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 25.88 2 Depth metres 0.15 25.78 3 Temperature 'deg C (ITS90)' 9.007 10.63 4 Conductivity S/m 2.6631 3.44025 5 Conductance:Specific S/m 3.91557 4.82782 6 Salinity PSS-78 24.22 30.71 7 Speed:Sound m/s 1473.02 1487.3 8 Density kg/m^3 1018.69 1023.615 $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 : 344 LATITUDE : 49 52.22420 N ! (deg min) LONGITUDE : 126 52.32980 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20241211_215007 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 09:00:11 87 87 MERGEHDR 1.3 2026/01/16 09:54:16 87 87 HDREDIT2 3.2 2026/01/16 09:55:17 ? ? REMOVECH 8.2 2026/01/16 09:56:27 87 87 CALIB 12.1 2026/01/16 09:57:01 87 87 CLEAN 5.3 2026/01/16 09:57:58 87 87 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:17 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 09:56:27 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:57:01 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 9.007 2.66310 3.91557 24.22 1473.02 1018.690 0.45 0.45 9.101 2.76019 4.04707 25.12 1474.49 1019.385 0.75 0.75 9.179 2.82132 4.12728 25.68 1475.47 1019.810 1.05 1.05 9.305 2.86641 4.17786 26.04 1476.39 1020.075 1.35 1.35 9.549 2.97958 4.31207 26.99 1478.46 1020.782 1.65 1.65 9.676 3.13845 4.52545 28.49 1480.75 1021.929 1.95 1.95 9.680 3.19055 4.60002 29.01 1481.40 1022.335 2.25 2.25 9.854 3.25730 4.67277 29.53 1482.69 1022.722 2.55 2.55 9.979 3.28076 4.68959 29.67 1483.31 1022.807 2.85 2.85 9.990 3.28387 4.69254 29.69 1483.39 1022.823 3.15 3.14 10.003 3.29114 4.70127 29.75 1483.51 1022.871 3.45 3.44 10.010 3.29639 4.70776 29.80 1483.60 1022.908 3.75 3.74 10.014 3.29809 4.70973 29.81 1483.63 1022.919 4.05 4.04 10.014 3.29958 4.71181 29.83 1483.66 1022.932 4.35 4.34 10.015 3.30248 4.71577 29.85 1483.70 1022.955 4.65 4.64 10.019 3.30440 4.71800 29.87 1483.74 1022.968 4.95 4.94 10.024 3.30474 4.71786 29.87 1483.76 1022.968 5.25 5.24 10.027 3.30630 4.71969 29.88 1483.79 1022.979 5.55 5.54 10.033 3.30988 4.72394 29.91 1483.86 1023.003 5.85 5.83 10.040 3.31255 4.72685 29.93 1483.91 1023.020 6.15 6.13 10.042 3.31393 4.72850 29.95 1483.94 1023.030 6.45 6.43 10.046 3.31500 4.72954 29.95 1483.97 1023.037 6.75 6.73 10.046 3.31718 4.73259 29.97 1484.00 1023.055 7.05 7.03 10.053 3.31784 4.73254 29.98 1484.03 1023.055 7.35 7.33 10.066 3.32098 4.73529 30.00 1484.11 1023.071 7.65 7.63 10.073 3.32281 4.73693 30.01 1484.15 1023.081 7.95 7.93 10.078 3.32441 4.73856 30.02 1484.19 1023.090 8.25 8.23 10.081 3.32466 4.73851 30.02 1484.21 1023.091 8.55 8.52 10.081 3.32518 4.73925 30.03 1484.22 1023.097 8.85 8.82 10.084 3.32525 4.73903 30.02 1484.23 1023.096 9.15 9.12 10.085 3.32620 4.74020 30.03 1484.25 1023.104 9.45 9.42 10.091 3.32845 4.74257 30.05 1484.30 1023.118 9.75 9.72 10.098 3.33016 4.74409 30.06 1484.34 1023.127 10.05 10.02 10.115 3.33313 4.74607 30.08 1484.43 1023.138 10.35 10.32 10.127 3.33578 4.74816 30.09 1484.50 1023.150 10.65 10.62 10.140 3.33935 4.75155 30.12 1484.58 1023.169 10.95 10.92 10.154 3.34329 4.75520 30.14 1484.67 1023.189 11.25 11.21 10.166 3.34562 4.75685 30.16 1484.73 1023.198 11.55 11.51 10.178 3.34761 4.75811 30.17 1484.79 1023.206 11.85 11.81 10.187 3.34956 4.75968 30.18 1484.84 1023.215 12.15 12.11 10.212 3.35448 4.76330 30.21 1484.97 1023.234 12.45 12.41 10.225 3.36029 4.76969 30.25 1485.08 1023.270 12.75 12.71 10.237 3.36214 4.77080 30.26 1485.14 1023.276 13.05 13.01 10.243 3.36322 4.77142 30.27 1485.18 1023.280 13.35 13.31 10.249 3.36379 4.77142 30.27 1485.20 1023.281 13.65 13.61 10.255 3.36478 4.77206 30.27 1485.23 1023.286 13.95 13.90 10.258 3.36534 4.77251 30.28 1485.25 1023.289 14.25 14.20 10.262 3.36819 4.77595 30.30 1485.30 1023.309 14.55 14.50 10.273 3.36891 4.77553 30.30 1485.34 1023.307 14.85 14.80 10.290 3.37276 4.77866 30.32 1485.44 1023.324 15.15 15.10 10.322 3.37940 4.78376 30.36 1485.61 1023.351 15.45 15.40 10.344 3.38585 4.78992 30.41 1485.75 1023.385 15.75 15.70 10.364 3.38918 4.79180 30.42 1485.85 1023.395 16.05 16.00 10.391 3.39194 4.79211 30.43 1485.95 1023.396 16.35 16.29 10.405 3.39414 4.79326 30.44 1486.02 1023.402 16.65 16.59 10.418 3.39687 4.79547 30.46 1486.09 1023.415 16.95 16.89 10.424 3.39862 4.79704 30.47 1486.13 1023.424 17.25 17.19 10.431 3.39994 4.79797 30.48 1486.17 1023.430 17.55 17.49 10.436 3.40052 4.79810 30.48 1486.20 1023.431 17.85 17.79 10.440 3.40055 4.79761 30.47 1486.21 1023.430 18.15 18.09 10.448 3.40138 4.79767 30.48 1486.25 1023.431 18.45 18.39 10.457 3.40352 4.79946 30.49 1486.30 1023.441 18.75 18.69 10.462 3.40570 4.80185 30.51 1486.35 1023.455 19.05 18.98 10.468 3.40706 4.80295 30.51 1486.38 1023.462 19.35 19.28 10.485 3.40913 4.80367 30.52 1486.45 1023.466 19.65 19.58 10.493 3.40984 4.80348 30.52 1486.49 1023.465 19.95 19.88 10.496 3.41282 4.80733 30.55 1486.54 1023.488 20.25 20.18 10.507 3.41379 4.80719 30.55 1486.58 1023.487 20.55 20.48 10.516 3.41492 4.80755 30.55 1486.62 1023.490 20.85 20.78 10.523 3.41566 4.80773 30.55 1486.65 1023.492 21.15 21.08 10.530 3.41664 4.80818 30.56 1486.69 1023.495 21.45 21.37 10.537 3.41857 4.80987 30.57 1486.74 1023.505 21.75 21.67 10.548 3.42096 4.81178 30.58 1486.80 1023.516 22.05 21.97 10.565 3.42350 4.81299 30.60 1486.88 1023.522 22.35 22.27 10.574 3.42650 4.81603 30.62 1486.94 1023.539 22.65 22.57 10.590 3.42899 4.81736 30.63 1487.02 1023.547 22.95 22.87 10.608 3.43091 4.81761 30.63 1487.09 1023.548 23.25 23.17 10.623 3.43482 4.82113 30.66 1487.18 1023.567 23.55 23.47 10.619 3.43540 4.82236 30.67 1487.18 1023.576 23.85 23.76 10.630 3.43690 4.82310 30.67 1487.23 1023.580 24.15 24.06 10.629 3.43608 4.82196 30.66 1487.23 1023.575 24.45 24.36 10.618 3.43628 4.82375 30.68 1487.20 1023.587 24.75 24.66 10.614 3.43627 4.82431 30.68 1487.20 1023.592 25.05 24.96 10.620 3.43814 4.82608 30.69 1487.24 1023.602 25.35 25.26 10.625 3.43820 4.82555 30.69 1487.26 1023.600 25.65 25.56 10.627 3.43979 4.82757 30.70 1487.29 1023.613 25.88 25.78 10.629 3.44025 4.82782 30.71 1487.30 1023.615