*2026/01/16 10:37:48.62 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/02/20 18:46:54.000 END TIME : UTC 2025/02/20 18:47:11.400 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 88 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 26.25 2 Depth metres 0.15 26.13 3 Temperature 'deg C (ITS90)' 8.038 8.819 4 Conductivity S/m 2.60507 3.28884 5 Conductance:Specific S/m 3.94249 4.93454 6 Salinity PSS-78 24.29 31.15 7 Speed:Sound m/s 1469.39 1479.91 8 Density kg/m^3 1018.876 1024.323 $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 : 60 LATITUDE : 50 0.16450 N ! (deg min) LONGITUDE : 127 10.30570 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250220_184654 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:25 88 88 MERGEHDR 1.3 2026/01/16 10:35:40 88 88 HDREDIT2 3.2 2026/01/16 10:36:10 ? ? REMOVECH 8.2 2026/01/16 10:36:38 88 88 CALIB 12.1 2026/01/16 10:37:12 88 88 CLEAN 5.3 2026/01/16 10:37:48 88 88 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:10 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 10:36:38 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:12 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 8.038 2.60507 3.94249 24.29 1469.39 1018.876 0.45 0.45 8.059 2.61020 3.94781 24.33 1469.52 1018.905 0.75 0.75 8.264 2.74322 4.12334 25.55 1471.82 1019.832 1.05 1.05 8.376 2.98659 4.47410 27.97 1475.23 1021.712 1.35 1.35 8.543 3.13992 4.68050 29.42 1477.66 1022.826 1.65 1.65 8.628 3.18857 4.74092 29.85 1478.52 1023.153 1.95 1.95 8.628 3.19624 4.75232 29.93 1478.62 1023.217 2.25 2.25 8.645 3.20176 4.75815 29.98 1478.74 1023.249 2.55 2.54 8.685 3.20983 4.76445 30.02 1478.96 1023.284 2.85 2.84 8.722 3.22188 4.77704 30.12 1479.22 1023.352 3.15 3.14 8.770 3.23068 4.78333 30.17 1479.46 1023.386 3.45 3.44 8.806 3.24583 4.80061 30.29 1479.76 1023.480 3.75 3.74 8.819 3.25483 4.81218 30.38 1479.91 1023.544 4.05 4.04 8.791 3.26061 4.82473 30.46 1479.91 1023.615 4.35 4.34 8.705 3.26708 4.84659 30.60 1479.77 1023.739 4.65 4.64 8.555 3.27581 4.88121 30.82 1479.48 1023.935 4.95 4.93 8.454 3.27647 4.89692 30.92 1479.22 1024.026 5.25 5.23 8.350 3.27540 4.91067 31.00 1478.93 1024.106 5.55 5.53 8.289 3.27502 4.91908 31.05 1478.77 1024.155 5.85 5.83 8.270 3.27460 4.92125 31.06 1478.71 1024.168 6.15 6.13 8.266 3.27475 4.92214 31.06 1478.71 1024.174 6.45 6.43 8.260 3.27449 4.92254 31.07 1478.70 1024.178 6.75 6.73 8.255 3.27526 4.92446 31.08 1478.70 1024.190 7.05 7.02 8.247 3.27426 4.92420 31.07 1478.67 1024.190 7.35 7.32 8.240 3.27379 4.92442 31.08 1478.65 1024.193 7.65 7.62 8.238 3.27396 4.92508 31.08 1478.65 1024.198 7.95 7.92 8.232 3.27340 4.92504 31.08 1478.63 1024.199 8.25 8.22 8.230 3.27367 4.92585 31.08 1478.63 1024.205 8.55 8.52 8.229 3.27396 4.92634 31.09 1478.64 1024.209 8.85 8.82 8.229 3.27379 4.92613 31.08 1478.64 1024.209 9.15 9.11 8.229 3.27419 4.92669 31.09 1478.65 1024.213 9.45 9.41 8.232 3.27424 4.92630 31.09 1478.67 1024.212 9.75 9.71 8.240 3.27459 4.92563 31.08 1478.70 1024.209 10.05 10.01 8.256 3.27632 4.92589 31.09 1478.77 1024.212 10.35 10.31 8.270 3.27843 4.92704 31.10 1478.84 1024.219 10.65 10.61 8.277 3.27949 4.92763 31.10 1478.87 1024.223 10.95 10.91 8.287 3.28087 4.92816 31.11 1478.92 1024.227 11.25 11.20 8.299 3.28260 4.92899 31.11 1478.98 1024.233 11.55 11.50 8.293 3.28307 4.93053 31.12 1478.98 1024.243 11.85 11.80 8.287 3.28308 4.93154 31.13 1478.96 1024.250 12.15 12.10 8.289 3.28413 4.93274 31.14 1478.99 1024.257 12.45 12.40 8.303 3.28593 4.93343 31.15 1479.05 1024.262 12.75 12.70 8.307 3.28707 4.93454 31.15 1479.08 1024.269 13.05 13.00 8.332 3.28884 4.93345 31.15 1479.18 1024.264 13.35 13.29 8.336 3.28801 4.93158 31.14 1479.19 1024.255 13.65 13.59 8.327 3.28590 4.92981 31.12 1479.14 1024.247 13.95 13.89 8.311 3.28483 4.93053 31.13 1479.09 1024.252 14.25 14.19 8.305 3.28396 4.93007 31.12 1479.06 1024.251 14.55 14.49 8.291 3.28322 4.93114 31.13 1479.02 1024.259 14.85 14.79 8.287 3.28195 4.92982 31.12 1479.00 1024.253 15.15 15.09 8.281 3.28180 4.93038 31.12 1478.99 1024.257 15.45 15.38 8.280 3.28174 4.93056 31.12 1478.99 1024.260 15.75 15.68 8.278 3.28168 4.93076 31.12 1478.98 1024.262 16.05 15.98 8.277 3.28140 4.93046 31.12 1478.98 1024.262 16.35 16.28 8.277 3.28175 4.93097 31.12 1478.99 1024.266 16.65 16.58 8.278 3.28192 4.93110 31.12 1479.00 1024.268 16.95 16.88 8.278 3.28139 4.93034 31.12 1479.00 1024.265 17.25 17.17 8.278 3.28202 4.93125 31.12 1479.01 1024.271 17.55 17.47 8.278 3.28184 4.93100 31.12 1479.01 1024.271 17.85 17.77 8.277 3.28172 4.93089 31.12 1479.02 1024.272 18.15 18.07 8.277 3.28146 4.93050 31.12 1479.02 1024.271 18.45 18.37 8.279 3.28194 4.93101 31.12 1479.03 1024.275 18.75 18.67 8.279 3.28214 4.93127 31.12 1479.04 1024.278 19.05 18.97 8.279 3.28224 4.93135 31.12 1479.05 1024.279 19.35 19.26 8.280 3.28189 4.93069 31.12 1479.05 1024.277 19.65 19.56 8.281 3.28224 4.93114 31.12 1479.06 1024.281 19.95 19.86 8.281 3.28249 4.93144 31.12 1479.07 1024.284 20.25 20.16 8.282 3.28276 4.93178 31.13 1479.08 1024.287 20.55 20.46 8.282 3.28198 4.93057 31.12 1479.08 1024.281 20.85 20.76 8.282 3.28234 4.93105 31.12 1479.09 1024.285 21.15 21.06 8.282 3.28250 4.93130 31.12 1479.09 1024.288 21.45 21.35 8.283 3.28256 4.93133 31.12 1479.10 1024.289 21.75 21.65 8.284 3.28268 4.93138 31.12 1479.11 1024.291 22.05 21.95 8.284 3.28292 4.93162 31.13 1479.12 1024.293 22.35 22.25 8.285 3.28315 4.93190 31.13 1479.13 1024.296 22.65 22.55 8.286 3.28350 4.93221 31.13 1479.14 1024.299 22.95 22.85 8.287 3.28361 4.93223 31.13 1479.15 1024.300 23.25 23.15 8.287 3.28385 4.93260 31.13 1479.16 1024.304 23.55 23.44 8.288 3.28392 4.93264 31.13 1479.16 1024.305 23.85 23.74 8.288 3.28364 4.93214 31.13 1479.17 1024.304 24.15 24.04 8.288 3.28465 4.93374 31.14 1479.18 1024.314 24.45 24.34 8.288 3.28475 4.93381 31.14 1479.19 1024.315 24.75 24.64 8.291 3.28448 4.93301 31.14 1479.20 1024.312 25.05 24.94 8.293 3.28505 4.93358 31.14 1479.22 1024.317 25.35 25.24 8.297 3.28541 4.93356 31.14 1479.24 1024.318 25.65 25.53 8.295 3.28546 4.93381 31.14 1479.24 1024.320 25.95 25.83 8.301 3.28600 4.93377 31.14 1479.26 1024.321 26.25 26.13 8.304 3.28642 4.93389 31.14 1479.28 1024.323