*2026/01/16 10:37:43.01 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/01/21 16:33:00.000 END TIME : UTC 2025/01/21 16:33:24.800 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 125 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 37.27 2 Depth metres 0.15 37.27 3 Temperature 'deg C (ITS90)' 7.246 9.322 4 Conductivity S/m 1.8455 2.83973 5 Conductance:Specific S/m 2.86165 4.13863 6 Salinity PSS-78 17.05 25.76 7 Speed:Sound m/s 1457.29 1476.64 8 Density kg/m^3 1013.29 1020.02 $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 : 3 LATITUDE : 49 7.12720 N ! (deg min) LONGITUDE : 125 47.82400 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250121_163300 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:22 125 125 MERGEHDR 1.3 2026/01/16 10:35:37 125 125 HDREDIT2 3.2 2026/01/16 10:36:07 ? ? REMOVECH 8.2 2026/01/16 10:36:36 125 125 CALIB 12.1 2026/01/16 10:37:09 125 125 CLEAN 5.3 2026/01/16 10:37:43 125 125 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:07 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 10:36:36 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:09 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 7.246 1.84550 2.86165 17.05 1457.29 1013.290 0.45 0.45 7.864 2.24517 3.41587 20.74 1464.34 1016.120 0.75 0.75 7.815 2.28065 3.47503 21.13 1464.63 1016.431 1.05 1.05 7.688 2.25501 3.44931 20.95 1463.90 1016.303 1.35 1.35 7.690 2.33300 3.56838 21.74 1464.90 1016.925 1.65 1.66 7.877 2.40531 3.65801 22.36 1466.40 1017.389 1.95 1.96 8.042 2.48332 3.75780 23.05 1467.90 1017.909 2.25 2.26 8.260 2.54417 3.82471 23.52 1469.33 1018.254 2.55 2.56 8.482 2.57885 3.85112 23.72 1470.45 1018.385 2.85 2.86 8.530 2.58334 3.85229 23.74 1470.65 1018.391 3.15 3.16 8.567 2.58530 3.85093 23.73 1470.80 1018.383 3.45 3.46 8.591 2.58946 3.85437 23.76 1470.92 1018.401 3.75 3.76 8.606 2.59374 3.85905 23.79 1471.03 1018.427 4.05 4.06 8.624 2.62620 3.90526 24.11 1471.49 1018.672 4.35 4.36 8.667 2.64024 3.92116 24.22 1471.79 1018.755 4.65 4.66 8.712 2.65868 3.94323 24.37 1472.16 1018.872 4.95 4.96 8.747 2.68340 3.97581 24.60 1472.57 1019.044 5.25 5.26 8.780 2.69002 3.98173 24.64 1472.76 1019.075 5.55 5.56 8.830 2.70687 4.00069 24.78 1473.12 1019.175 5.85 5.86 8.877 2.71288 4.00399 24.80 1473.34 1019.191 6.15 6.16 8.894 2.71357 4.00305 24.80 1473.40 1019.187 6.45 6.46 8.902 2.71522 4.00447 24.81 1473.45 1019.195 6.75 6.76 8.918 2.71845 4.00741 24.83 1473.54 1019.211 7.05 7.06 8.930 2.72043 4.00891 24.84 1473.60 1019.220 7.35 7.36 8.940 2.72350 4.01222 24.87 1473.68 1019.238 7.65 7.66 8.940 2.72574 4.01555 24.89 1473.71 1019.257 7.95 7.96 8.937 2.72753 4.01853 24.91 1473.73 1019.275 8.25 8.26 8.932 2.72687 4.01814 24.90 1473.71 1019.274 8.55 8.56 8.928 2.72937 4.02230 24.93 1473.73 1019.298 8.85 8.86 8.935 2.72838 4.01996 24.92 1473.75 1019.286 9.15 9.16 8.952 2.72769 4.01699 24.90 1473.79 1019.271 9.45 9.46 8.966 2.72867 4.01677 24.90 1473.85 1019.270 9.75 9.76 8.993 2.72692 4.01101 24.86 1473.91 1019.239 10.05 10.06 9.018 2.73101 4.01404 24.89 1474.04 1019.255 10.35 10.36 9.033 2.73412 4.01689 24.91 1474.13 1019.271 10.65 10.66 9.038 2.73475 4.01726 24.91 1474.15 1019.274 10.95 10.96 9.038 2.73548 4.01822 24.92 1474.17 1019.280 11.25 11.26 9.051 2.73964 4.02282 24.95 1474.26 1019.305 11.55 11.56 9.069 2.74276 4.02534 24.97 1474.36 1019.319 11.85 11.86 9.081 2.74306 4.02431 24.96 1474.40 1019.314 12.15 12.16 9.092 2.74419 4.02474 24.97 1474.45 1019.317 12.45 12.46 9.079 2.74231 4.02348 24.96 1474.40 1019.313 12.75 12.76 9.082 2.74161 4.02212 24.95 1474.40 1019.307 13.05 13.06 9.094 2.74779 4.02968 25.00 1474.52 1019.347 13.35 13.36 9.154 2.75758 4.03695 25.06 1474.82 1019.384 13.65 13.66 9.205 2.76605 4.04339 25.10 1475.07 1019.417 13.95 13.96 9.220 2.76979 4.04702 25.13 1475.17 1019.436 14.25 14.26 9.223 2.77016 4.04719 25.13 1475.19 1019.438 14.55 14.56 9.218 2.77276 4.05159 25.16 1475.21 1019.464 14.85 14.86 9.228 2.77692 4.05650 25.20 1475.29 1019.490 15.15 15.16 9.235 2.77525 4.05329 25.17 1475.30 1019.474 15.45 15.46 9.237 2.77662 4.05502 25.19 1475.32 1019.485 15.75 15.76 9.237 2.77767 4.05649 25.20 1475.34 1019.494 16.05 16.06 9.231 2.77743 4.05688 25.20 1475.33 1019.497 16.35 16.36 9.235 2.77963 4.05958 25.22 1475.37 1019.513 16.65 16.66 9.233 2.78052 4.06116 25.23 1475.38 1019.523 16.95 16.96 9.238 2.77993 4.05970 25.22 1475.39 1019.516 17.25 17.26 9.237 2.78001 4.05997 25.22 1475.39 1019.519 17.55 17.56 9.234 2.78010 4.06050 25.22 1475.39 1019.523 17.85 17.86 9.238 2.78024 4.06016 25.22 1475.41 1019.522 18.15 18.16 9.240 2.78123 4.06135 25.23 1475.43 1019.530 18.45 18.46 9.240 2.78023 4.05992 25.22 1475.42 1019.524 18.75 18.76 9.239 2.78062 4.06060 25.22 1475.43 1019.529 19.05 19.06 9.236 2.78042 4.06072 25.22 1475.42 1019.531 19.35 19.36 9.228 2.77974 4.06062 25.22 1475.40 1019.532 19.65 19.66 9.220 2.77983 4.06166 25.23 1475.38 1019.539 19.95 19.96 9.210 2.77893 4.06154 25.23 1475.35 1019.540 20.25 20.26 9.200 2.77889 4.06265 25.23 1475.32 1019.548 20.55 20.56 9.199 2.78193 4.06724 25.26 1475.36 1019.574 20.85 20.86 9.197 2.78567 4.07296 25.30 1475.40 1019.606 21.15 21.16 9.195 2.78588 4.07357 25.31 1475.40 1019.611 21.45 21.46 9.188 2.78511 4.07319 25.30 1475.38 1019.610 21.75 21.76 9.192 2.78710 4.07568 25.32 1475.42 1019.625 22.05 22.06 9.202 2.79148 4.08092 25.36 1475.51 1019.653 22.35 22.36 9.215 2.79362 4.08243 25.37 1475.58 1019.662 22.65 22.66 9.228 2.79980 4.08990 25.42 1475.70 1019.702 22.95 22.96 9.241 2.80427 4.09489 25.46 1475.79 1019.730 23.25 23.26 9.249 2.80832 4.09980 25.49 1475.87 1019.757 23.55 23.56 9.255 2.81083 4.10280 25.51 1475.92 1019.774 23.85 23.86 9.261 2.81147 4.10297 25.51 1475.95 1019.775 24.15 24.16 9.268 2.81312 4.10458 25.53 1476.00 1019.785 24.45 24.46 9.272 2.81584 4.10809 25.55 1476.05 1019.805 24.75 24.76 9.278 2.81791 4.11042 25.57 1476.09 1019.818 25.05 25.06 9.286 2.81855 4.11038 25.57 1476.13 1019.819 25.35 25.36 9.287 2.82049 4.11310 25.59 1476.16 1019.835 25.65 25.66 9.288 2.82062 4.11313 25.59 1476.17 1019.836 25.95 25.96 9.291 2.82114 4.11356 25.59 1476.19 1019.839 26.25 26.26 9.292 2.82155 4.11404 25.59 1476.20 1019.843 26.55 26.56 9.293 2.82086 4.11290 25.58 1476.20 1019.838 26.85 26.86 9.293 2.82181 4.11423 25.59 1476.22 1019.847 27.15 27.16 9.293 2.82264 4.11542 25.60 1476.23 1019.854 27.45 27.46 9.292 2.82167 4.11420 25.59 1476.22 1019.849 27.75 27.76 9.294 2.82130 4.11342 25.59 1476.23 1019.846 28.05 28.06 9.294 2.82188 4.11421 25.59 1476.24 1019.852 28.35 28.36 9.295 2.82196 4.11422 25.59 1476.25 1019.853 28.65 28.66 9.297 2.82246 4.11477 25.60 1476.26 1019.857 28.95 28.96 9.296 2.82414 4.11732 25.61 1476.29 1019.872 29.25 29.26 9.297 2.82586 4.11963 25.63 1476.32 1019.886 29.55 29.56 9.297 2.82605 4.12000 25.63 1476.32 1019.889 29.85 29.86 9.301 2.82704 4.12094 25.64 1476.35 1019.895 30.15 30.16 9.303 2.82668 4.12019 25.63 1476.36 1019.892 30.45 30.45 9.304 2.82662 4.11998 25.63 1476.36 1019.892 30.75 30.75 9.305 2.82661 4.11984 25.63 1476.37 1019.893 31.05 31.05 9.305 2.82683 4.12019 25.63 1476.38 1019.896 31.35 31.35 9.305 2.82673 4.12005 25.63 1476.38 1019.896 31.65 31.65 9.304 2.82752 4.12122 25.64 1476.40 1019.904 31.95 31.95 9.305 2.82823 4.12219 25.65 1476.41 1019.911 32.25 32.25 9.306 2.82787 4.12150 25.64 1476.42 1019.908 32.55 32.55 9.305 2.82800 4.12181 25.65 1476.42 1019.911 32.85 32.85 9.307 2.82763 4.12109 25.64 1476.42 1019.908 33.15 33.15 9.308 2.82823 4.12183 25.65 1476.44 1019.914 33.45 33.45 9.310 2.83047 4.12480 25.67 1476.48 1019.931 33.75 33.75 9.315 2.83251 4.12721 25.68 1476.52 1019.944 34.05 34.05 9.320 2.83277 4.12694 25.68 1476.54 1019.944 34.35 34.35 9.322 2.83310 4.12727 25.68 1476.56 1019.947 34.65 34.65 9.317 2.83018 4.12356 25.66 1476.51 1019.929 34.95 34.95 9.313 2.82948 4.12305 25.65 1476.50 1019.928 35.25 35.25 9.311 2.83054 4.12484 25.67 1476.51 1019.939 35.55 35.55 9.309 2.83550 4.13225 25.72 1476.57 1019.980 35.85 35.85 9.312 2.83855 4.13644 25.74 1476.62 1020.003 36.15 36.15 9.311 2.83973 4.13819 25.76 1476.64 1020.014 36.45 36.45 9.307 2.83970 4.13860 25.76 1476.63 1020.017 36.75 36.75 9.303 2.83938 4.13863 25.76 1476.62 1020.019 37.05 37.05 9.302 2.83922 4.13853 25.76 1476.62 1020.020 37.27 37.27 9.303 2.83884 4.13785 25.75 1476.62 1020.017