*2026/01/16 10:37:57.94 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/07/22 14:48:20.000 END TIME : UTC 2025/07/22 14:48:48.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 143 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 42.9 2 Depth metres 0.15 42.68 3 Temperature 'deg C (ITS90)' 9.074 17.536 4 Conductivity S/m 3.45244 3.9166 5 Conductance:Specific S/m 4.57503 5.06854 6 Salinity PSS-78 29.45 32.2 7 Speed:Sound m/s 1483.66 1508.11 8 Density kg/m^3 1021.136 1025.102 $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 : 220 LATITUDE : 49 56.75530 N ! (deg min) LONGITUDE : 126 48.82260 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250722_144820 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:34 143 143 MERGEHDR 1.3 2026/01/16 10:35:48 143 143 HDREDIT2 3.2 2026/01/16 10:36:19 ? ? REMOVECH 8.2 2026/01/16 10:36:51 143 143 CALIB 12.1 2026/01/16 10:37:22 143 143 CLEAN 5.3 2026/01/16 10:37:57 143 143 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:19 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 10:36:51 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:22 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 17.536 3.89207 4.57503 29.45 1508.11 1021.136 0.45 0.45 17.333 3.88667 4.59062 29.55 1507.61 1021.263 0.75 0.75 17.289 3.89661 4.60707 29.67 1507.62 1021.363 1.05 1.05 17.274 3.90297 4.61629 29.73 1507.65 1021.417 1.35 1.35 17.209 3.90459 4.62526 29.79 1507.53 1021.480 1.65 1.65 17.139 3.90626 4.63497 29.86 1507.40 1021.548 1.95 1.95 17.000 3.90807 4.65249 29.98 1507.12 1021.672 2.25 2.25 16.749 3.90997 4.68276 30.18 1506.59 1021.887 2.55 2.54 16.586 3.91660 4.70906 30.36 1506.30 1022.063 2.85 2.84 16.340 3.90082 4.71797 30.41 1505.60 1022.158 3.15 3.14 15.961 3.89271 4.75175 30.63 1504.68 1022.413 3.45 3.44 15.585 3.85973 4.75509 30.63 1503.51 1022.497 3.75 3.74 15.294 3.82970 4.75214 30.59 1502.55 1022.530 4.05 4.04 14.992 3.80325 4.75498 30.59 1501.59 1022.596 4.35 4.34 14.701 3.78758 4.77011 30.68 1500.76 1022.726 4.65 4.64 14.482 3.78132 4.78866 30.80 1500.19 1022.863 4.95 4.94 14.225 3.76979 4.80539 30.90 1499.48 1022.995 5.25 5.24 13.896 3.75495 4.82692 31.02 1498.55 1023.162 5.55 5.53 13.583 3.74165 4.84885 31.15 1497.68 1023.327 5.85 5.83 13.327 3.70701 4.83600 31.04 1496.70 1023.291 6.15 6.13 13.075 3.67305 4.82347 30.93 1495.73 1023.256 6.45 6.43 12.777 3.65870 4.84256 31.04 1494.86 1023.399 6.75 6.73 12.457 3.65429 4.87796 31.26 1494.04 1023.633 7.05 7.03 12.218 3.64644 4.89877 31.39 1493.37 1023.776 7.35 7.33 11.985 3.63120 4.90900 31.44 1492.64 1023.859 7.65 7.63 11.688 3.61754 4.93013 31.55 1491.76 1024.007 7.95 7.92 11.460 3.58186 4.91206 31.40 1490.78 1023.930 8.25 8.22 11.194 3.56418 4.92375 31.46 1489.92 1024.021 8.55 8.52 10.840 3.54399 4.94418 31.56 1488.80 1024.165 8.85 8.82 10.554 3.51344 4.94103 31.50 1487.72 1024.172 9.15 9.12 10.326 3.50236 4.95719 31.59 1487.01 1024.279 9.45 9.42 10.188 3.49932 4.97229 31.68 1486.63 1024.373 9.75 9.72 10.043 3.49899 4.99244 31.80 1486.26 1024.495 10.05 10.01 9.964 3.49477 4.99762 31.83 1486.01 1024.530 10.35 10.31 9.898 3.49177 5.00276 31.86 1485.81 1024.564 10.65 10.61 9.838 3.48507 5.00177 31.84 1485.58 1024.563 10.95 10.91 9.785 3.48530 5.00975 31.89 1485.45 1024.611 11.25 11.21 9.746 3.48420 5.01377 31.92 1485.34 1024.637 11.55 11.51 9.709 3.48202 5.01606 31.93 1485.22 1024.653 11.85 11.81 9.657 3.47834 5.01822 31.93 1485.05 1024.669 12.15 12.10 9.618 3.47601 5.02058 31.95 1484.92 1024.686 12.45 12.40 9.588 3.47513 5.02358 31.96 1484.84 1024.705 12.75 12.70 9.557 3.47450 5.02714 31.98 1484.76 1024.728 13.05 13.00 9.535 3.47408 5.02986 32.00 1484.70 1024.745 13.35 13.30 9.526 3.47326 5.02998 32.00 1484.67 1024.748 13.65 13.60 9.506 3.47152 5.03024 32.00 1484.61 1024.752 13.95 13.89 9.493 3.47090 5.03135 32.00 1484.57 1024.760 14.25 14.19 9.481 3.47072 5.03277 32.01 1484.54 1024.769 14.55 14.49 9.470 3.47019 5.03364 32.02 1484.51 1024.776 14.85 14.79 9.463 3.46948 5.03370 32.02 1484.49 1024.778 15.15 15.09 9.457 3.46985 5.03509 32.03 1484.48 1024.787 15.45 15.39 9.451 3.46934 5.03519 32.02 1484.46 1024.789 15.75 15.68 9.447 3.46999 5.03667 32.03 1484.47 1024.799 16.05 15.98 9.444 3.46954 5.03655 32.03 1484.46 1024.800 16.35 16.28 9.432 3.46928 5.03784 32.04 1484.43 1024.809 16.65 16.58 9.418 3.46874 5.03913 32.05 1484.39 1024.818 16.95 16.88 9.402 3.46766 5.03996 32.05 1484.34 1024.824 17.25 17.18 9.380 3.46622 5.04097 32.06 1484.27 1024.832 17.55 17.47 9.376 3.46564 5.04083 32.05 1484.26 1024.833 17.85 17.77 9.366 3.46462 5.04080 32.05 1484.22 1024.835 18.15 18.07 9.352 3.46283 5.04020 32.05 1484.17 1024.833 18.45 18.37 9.331 3.46151 5.04143 32.05 1484.10 1024.842 18.75 18.67 9.305 3.46145 5.04513 32.07 1484.04 1024.865 19.05 18.97 9.286 3.46027 5.04619 32.08 1483.98 1024.873 19.35 19.27 9.275 3.45921 5.04632 32.08 1483.94 1024.876 19.65 19.56 9.263 3.45993 5.04902 32.09 1483.93 1024.892 19.95 19.86 9.259 3.45999 5.04969 32.10 1483.92 1024.898 20.25 20.16 9.258 3.45914 5.04870 32.09 1483.91 1024.894 20.55 20.46 9.254 3.45996 5.05041 32.10 1483.92 1024.904 20.85 20.76 9.250 3.45935 5.05016 32.10 1483.90 1024.905 21.15 21.06 9.250 3.46097 5.05257 32.12 1483.93 1024.919 21.45 21.35 9.254 3.46016 5.05080 32.10 1483.93 1024.910 21.75 21.65 9.246 3.45950 5.05099 32.10 1483.91 1024.913 22.05 21.95 9.232 3.45773 5.05050 32.10 1483.86 1024.912 22.35 22.25 9.219 3.45700 5.05126 32.10 1483.82 1024.918 22.65 22.55 9.211 3.45692 5.05235 32.11 1483.80 1024.926 22.95 22.85 9.205 3.45756 5.05412 32.12 1483.80 1024.937 23.25 23.14 9.200 3.45603 5.05262 32.11 1483.77 1024.931 23.55 23.44 9.194 3.45578 5.05313 32.11 1483.76 1024.935 23.85 23.74 9.193 3.45577 5.05337 32.11 1483.76 1024.938 24.15 24.04 9.188 3.45673 5.05545 32.13 1483.76 1024.950 24.45 24.34 9.185 3.45532 5.05381 32.12 1483.74 1024.943 24.75 24.64 9.182 3.45540 5.05442 32.12 1483.74 1024.948 25.05 24.93 9.175 3.45508 5.05496 32.12 1483.72 1024.952 25.35 25.23 9.173 3.45633 5.05709 32.14 1483.74 1024.965 25.65 25.53 9.171 3.45521 5.05574 32.13 1483.72 1024.959 25.95 25.83 9.167 3.45562 5.05691 32.13 1483.72 1024.967 26.25 26.13 9.162 3.45527 5.05719 32.13 1483.71 1024.970 26.55 26.43 9.160 3.45459 5.05647 32.13 1483.70 1024.967 26.85 26.72 9.156 3.45491 5.05752 32.14 1483.70 1024.975 27.15 27.02 9.154 3.45521 5.05831 32.14 1483.70 1024.980 27.45 27.32 9.152 3.45462 5.05773 32.14 1483.70 1024.979 27.75 27.62 9.150 3.45503 5.05861 32.14 1483.70 1024.985 28.05 27.92 9.149 3.45412 5.05749 32.13 1483.69 1024.980 28.35 28.22 9.147 3.45445 5.05825 32.14 1483.70 1024.985 28.65 28.51 9.145 3.45472 5.05893 32.14 1483.70 1024.990 28.95 28.81 9.144 3.45398 5.05790 32.14 1483.69 1024.986 29.25 29.11 9.149 3.45489 5.05859 32.14 1483.72 1024.991 29.55 29.41 9.139 3.45494 5.06011 32.15 1483.70 1025.001 29.85 29.71 9.133 3.45448 5.06030 32.15 1483.68 1025.004 30.15 30.01 9.133 3.45408 5.05967 32.15 1483.68 1025.001 30.45 30.30 9.133 3.45470 5.06060 32.15 1483.70 1025.008 30.75 30.60 9.133 3.45477 5.06078 32.15 1483.70 1025.010 31.05 30.90 9.129 3.45449 5.06097 32.15 1483.69 1025.013 31.35 31.20 9.127 3.45401 5.06051 32.15 1483.69 1025.011 31.65 31.50 9.127 3.45422 5.06090 32.15 1483.69 1025.015 31.95 31.80 9.125 3.45425 5.06114 32.15 1483.69 1025.017 32.25 32.09 9.123 3.45362 5.06057 32.15 1483.68 1025.016 32.55 32.39 9.122 3.45452 5.06205 32.16 1483.70 1025.025 32.85 32.69 9.119 3.45422 5.06195 32.16 1483.69 1025.026 33.15 32.99 9.115 3.45352 5.06153 32.16 1483.68 1025.025 33.45 33.29 9.115 3.45316 5.06107 32.15 1483.68 1025.024 33.75 33.59 9.111 3.45366 5.06243 32.16 1483.68 1025.033 34.05 33.88 9.108 3.45354 5.06259 32.16 1483.67 1025.035 34.35 34.18 9.108 3.45297 5.06187 32.16 1483.67 1025.032 34.65 34.48 9.104 3.45324 5.06280 32.16 1483.67 1025.039 34.95 34.78 9.103 3.45286 5.06244 32.16 1483.67 1025.038 35.25 35.08 9.100 3.45244 5.06229 32.16 1483.66 1025.039 35.55 35.38 9.100 3.45303 5.06307 32.16 1483.67 1025.044 35.85 35.67 9.098 3.45315 5.06361 32.17 1483.67 1025.049 36.15 35.97 9.096 3.45303 5.06371 32.17 1483.67 1025.051 36.45 36.27 9.093 3.45316 5.06425 32.17 1483.67 1025.055 36.75 36.57 9.095 3.45335 5.06437 32.17 1483.68 1025.057 37.05 36.87 9.092 3.45369 5.06526 32.18 1483.68 1025.063 37.35 37.17 9.089 3.45300 5.06466 32.17 1483.67 1025.061 37.65 37.46 9.090 3.45342 5.06507 32.18 1483.68 1025.065 37.95 37.76 9.087 3.45263 5.06445 32.17 1483.67 1025.063 38.25 38.06 9.084 3.45323 5.06571 32.18 1483.67 1025.071 38.55 38.36 9.085 3.45318 5.06559 32.18 1483.68 1025.072 38.85 38.66 9.087 3.45323 5.06530 32.18 1483.69 1025.071 39.15 38.96 9.088 3.45317 5.06514 32.17 1483.70 1025.072 39.45 39.25 9.086 3.45333 5.06555 32.18 1483.70 1025.075 39.75 39.55 9.086 3.45288 5.06495 32.17 1483.70 1025.073 40.05 39.85 9.083 3.45300 5.06555 32.18 1483.70 1025.078 40.35 40.15 9.078 3.45299 5.06637 32.18 1483.69 1025.084 40.65 40.45 9.075 3.45323 5.06712 32.19 1483.69 1025.089 40.95 40.75 9.075 3.45282 5.06649 32.18 1483.69 1025.087 41.25 41.04 9.076 3.45293 5.06656 32.18 1483.70 1025.089 41.55 41.34 9.074 3.45268 5.06652 32.18 1483.69 1025.090 41.85 41.64 9.074 3.45408 5.06854 32.20 1483.72 1025.102 42.15 41.94 9.074 3.45333 5.06747 32.19 1483.71 1025.098 42.45 42.24 9.074 3.45294 5.06685 32.18 1483.71 1025.095 42.90 42.68 9.075 3.45362 5.06762 32.19 1483.73 1025.102