*2026/01/16 09:57:46.92 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2024/01/11 18:11:56.000 END TIME : UTC 2024/01/11 18:12:08.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 65 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 19.27 2 Depth metres 0.15 19.21 3 Temperature 'deg C (ITS90)' 9.049 10.226 4 Conductivity S/m 3.06559 3.37051 5 Conductance:Specific S/m 4.50085 4.78703 6 Salinity PSS-78 28.24 30.37 7 Speed:Sound m/s 1478.12 1485.26 8 Density kg/m^3 1021.824 1023.395 $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 : 9 LATITUDE : 48 52.77790 N ! (deg min) LONGITUDE : 125 17.59420 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20240111_181156 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 08:59:54 65 65 MERGEHDR 1.3 2026/01/16 09:53:43 65 65 HDREDIT2 3.2 2026/01/16 09:55:00 ? ? REMOVECH 8.2 2026/01/16 09:56:13 65 65 CALIB 12.1 2026/01/16 09:56:45 65 65 CLEAN 5.3 2026/01/16 09:57:46 65 65 $END $REMARKS -HEADER EDITS: 2026/01/16 09:55:00 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 09:56:13 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 09:56:45 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 9.056 3.06559 4.50085 28.24 1478.12 1021.824 0.45 0.45 9.049 3.10165 4.55469 28.61 1478.56 1022.117 0.75 0.75 9.073 3.10311 4.55356 28.61 1478.65 1022.111 1.05 1.05 9.077 3.10904 4.56176 28.67 1478.74 1022.157 1.35 1.35 9.073 3.10880 4.56192 28.67 1478.73 1022.159 1.65 1.65 9.084 3.11181 4.56486 28.69 1478.80 1022.176 1.95 1.94 9.095 3.11638 4.57020 28.73 1478.89 1022.206 2.25 2.24 9.111 3.11920 4.57217 28.74 1478.98 1022.217 2.55 2.54 9.123 3.11940 4.57082 28.73 1479.02 1022.210 2.85 2.84 9.132 3.12133 4.57250 28.75 1479.07 1022.220 3.15 3.14 9.139 3.12148 4.57168 28.74 1479.10 1022.217 3.45 3.44 9.151 3.12380 4.57358 28.76 1479.16 1022.228 3.75 3.74 9.177 3.12831 4.57670 28.78 1479.29 1022.245 4.05 4.04 9.214 3.13458 4.58083 28.81 1479.48 1022.266 4.35 4.34 9.237 3.13719 4.58159 28.82 1479.58 1022.271 4.65 4.64 9.293 3.14629 4.58738 28.87 1479.85 1022.300 4.95 4.94 9.333 3.15400 4.59319 28.91 1480.06 1022.331 5.25 5.24 9.361 3.15924 4.59709 28.95 1480.21 1022.352 5.55 5.53 9.371 3.16421 4.60303 28.99 1480.30 1022.385 5.85 5.83 9.410 3.17849 4.61863 29.10 1480.58 1022.469 6.15 6.13 9.477 3.18848 4.62411 29.15 1480.90 1022.496 6.45 6.43 9.540 3.19477 4.62478 29.16 1481.15 1022.498 6.75 6.73 9.602 3.20126 4.62585 29.17 1481.40 1022.501 7.05 7.03 9.625 3.20325 4.62568 29.18 1481.49 1022.500 7.35 7.33 9.673 3.21093 4.63033 29.21 1481.72 1022.524 7.65 7.63 9.687 3.21726 4.63756 29.27 1481.84 1022.563 7.95 7.93 9.720 3.22342 4.64198 29.30 1482.01 1022.587 8.25 8.23 9.775 3.23096 4.64559 29.33 1482.25 1022.604 8.55 8.53 9.816 3.23791 4.64997 29.37 1482.45 1022.627 8.85 8.82 9.861 3.24624 4.65600 29.42 1482.68 1022.658 9.15 9.12 9.920 3.25874 4.66598 29.49 1482.99 1022.710 9.45 9.42 9.959 3.27345 4.68182 29.61 1483.28 1022.795 9.75 9.72 9.972 3.28787 4.70073 29.74 1483.50 1022.898 10.05 10.02 10.020 3.30285 4.71570 29.85 1483.81 1022.978 10.35 10.32 10.075 3.31376 4.72377 29.92 1484.09 1023.020 10.65 10.62 10.119 3.31524 4.72004 29.89 1484.23 1022.998 10.95 10.92 10.137 3.31694 4.72002 29.90 1484.30 1022.998 11.25 11.22 10.154 3.32402 4.72785 29.95 1484.44 1023.041 11.55 11.52 10.167 3.32919 4.73339 29.99 1484.54 1023.071 11.85 11.81 10.191 3.33575 4.73943 30.04 1484.69 1023.104 12.15 12.11 10.196 3.33882 4.74315 30.06 1484.74 1023.125 12.45 12.41 10.200 3.34260 4.74798 30.10 1484.80 1023.153 12.75 12.71 10.201 3.34415 4.75014 30.11 1484.83 1023.166 13.05 13.01 10.197 3.34529 4.75219 30.13 1484.84 1023.178 13.35 13.31 10.194 3.34653 4.75434 30.14 1484.85 1023.192 13.65 13.61 10.202 3.34822 4.75567 30.15 1484.90 1023.200 13.95 13.91 10.205 3.35063 4.75871 30.17 1484.94 1023.217 14.25 14.21 10.206 3.35141 4.75965 30.18 1484.96 1023.224 14.55 14.50 10.206 3.35306 4.76203 30.20 1484.98 1023.238 14.85 14.80 10.207 3.35424 4.76355 30.21 1485.00 1023.247 15.15 15.10 10.209 3.35673 4.76686 30.23 1485.04 1023.267 15.45 15.40 10.213 3.35972 4.77064 30.26 1485.09 1023.288 15.75 15.70 10.217 3.36154 4.77259 30.27 1485.13 1023.300 16.05 16.00 10.221 3.36271 4.77369 30.28 1485.16 1023.307 16.35 16.30 10.220 3.36364 4.77523 30.29 1485.17 1023.317 16.65 16.60 10.226 3.36405 4.77491 30.29 1485.20 1023.316 16.95 16.90 10.224 3.36433 4.77560 30.29 1485.20 1023.321 17.25 17.19 10.222 3.36609 4.77832 30.31 1485.22 1023.337 17.55 17.49 10.222 3.36695 4.77962 30.32 1485.24 1023.346 17.85 17.79 10.222 3.36716 4.77986 30.32 1485.24 1023.348 18.15 18.09 10.213 3.36686 4.78065 30.33 1485.22 1023.355 18.45 18.39 10.206 3.36727 4.78228 30.34 1485.21 1023.365 18.75 18.69 10.210 3.36884 4.78391 30.35 1485.25 1023.375 19.05 18.99 10.207 3.37051 4.78672 30.37 1485.26 1023.392 19.27 19.21 10.200 3.37007 4.78703 30.37 1485.24 1023.395