*2021/04/21 13:45:23.80 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2020/02/20 14:17:42.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 80 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : F705C485 NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 1.5 79.7 2 Temperature:CTD deg_C_(ITS90) 6.7104 6.9648 3 Salinity:CTD PSS-78 31.6154 31.9007 4 Sigma-t:CTD kg/m^3 24.8151 25.0086 5 Transmissivity:CTD:650 %/m 45.1 50.8 6 Transmissivity:CTD:530 %/m 71.3 82.3 7 Oxygen:Dissolved:CTD:Volume ml/l 6.22 6.8 8 Oxygen:Dissolved:CTD:Mass µmol/kg 270.7 296.1 9 Fluorescence:CTD:Seapoint mg/m^3 0.21 0.536 10 PAR:CTD µE/m^2/sec 0 0.3 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F ' ' 1 2 -99 ' ' 9 F ' ' 4 3 -99 ' ' 9 F ' ' 4 4 -99 ' ' 9 F R4 4 5 -99 ' ' 6 F ' ' 1 6 -99 ' ' 6 F ' ' 1 7 -99 ' ' 7 F ' ' 2 8 -99 ' ' 6 F ' ' 1 9 -99 ' ' 8 F ' ' 3 10 -99 ' ' 7 F ' ' 1 $END *ADMINISTRATION MISSION : 2020-001 AGENCY : IOS, Ocean Sciences Division, Sidney BC COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : CH10 EVENT NUMBER : 97 LATITUDE : 54 26.87000 N ! (deg min) LONGITUDE : 130 39.24000 W ! (deg min) WATER DEPTH : 84 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove records corrupted by shed wakes from the bottom of the cast; salinity was cleaned lightly. Data Processing Notes: ---------------------- Transmissivity, Fluorescence and PAR data are nominal and unedited except that some records were removed in editing temperature and salinity. There were 2 WetLabs CStar transmissometers in use during this cruise: Transmissometer:CTD:530 refers to sensor #1883DG (530nm - green) Transmissometer:CTD:650 refers to sensor #1185DR (650nm - red) For comparison with other Institute of Ocean Sciences cruises, note that the transmissometer wavelength is 650 nm unless otherwise stated. NOTE: While the CTD fluorescence data are expressed in concentration units, they do not always compare well to extracted chlorophyll samples, particularly for casts far from shore. It is recommended that users check extracted chlorophyll values where available. Oxygen:Dissolved:CTD was calibrated using the method described in Sea-Bird Application Note #64-2, June 2012 revision (Sea-Bird_64-2_Jun2012.pdf), except that a small offset in the fit was allowed. The Oxygen:Dissolved:CTD sensor has a fairly long response time so data accuracy is not as high when it is in motion as it is during stops for bottles. This will be especially true when vertical dissolved oxygen gradients are large. To get an estimate of the accuracy of the Oxygen:Dissolved:CTD data during downcasts (after recalibration) a rough comparison was made between downcast Oxygen:Dissolved:CTD data and upcast titrated samples. Some of the difference will be due to problems with flushing of Niskin bottles and/or analysis errors, so the following statement likely underestimates Oxygen:Dissolved:CTD accuracy. Downcast (CTD files) Oxygen:Dissolved:CTD data are considered, very roughly, to be: ±0.30 ml/l from 0 to 250 dbar (higher in areas of very large DO gradients). ±0.20 ml/l from 250 to 400 dbar. ±0.04 ml/l below 400 dbar. For casts 0089 to 0120 there was no 10 dbar soak so data from channels Oxygen:Dissolved:CTD may have been affected by bubbles in the top 10 to 15 dbar. For details on the processing see document: 2020-001-proc.pdf. !--1--- ---2---- ---3---- ---4---- --5-- --6-- --7--- --8-- ---9--- --10-- !Pressu Temperat Salinity Sigma-t: Trans Trans Oxygen Oxyge Fluores PAR: !re:CTD ure:CTD :CTD CTD missi missi :Disso n:Dis cence: CTD ! vity: vity: lved: solve CTD: ! CTD: CTD: CTD: d:CTD Seapoin ! 650 530 Volume :Mass t !------ -------- -------- -------- ----- ----- ------ ----- ------- ------ *END OF HEADER 1.5 6.7139 31.6157 24.8167 50.8 82.3 6.77 294.8 0.513 0.3 1.9 6.7153 31.6159 24.8167 50.8 82.0 6.77 295.1 0.531 0.2 3.0 6.7259 31.6164 24.8157 50.6 81.9 6.78 295.4 0.526 0.1 4.0 6.7224 31.6165 24.8163 50.8 81.9 6.78 295.2 0.536 0.0 5.0 6.7232 31.6166 24.8162 50.8 82.0 6.76 294.6 0.520 0.0 6.0 6.7211 31.6161 24.8161 50.8 81.9 6.77 294.8 0.523 0.0 7.0 6.7197 31.6163 24.8165 50.8 81.8 6.77 294.8 0.521 0.0 8.0 6.7190 31.6160 24.8163 50.8 82.0 6.77 294.9 0.510 0.0 9.0 6.7136 31.6157 24.8168 50.8 81.9 6.78 295.4 0.523 0.0 10.0 6.7104 31.6154 24.8169 50.8 81.9 6.79 295.7 0.525 0.0 11.0 6.7123 31.6155 24.8168 50.8 81.8 6.79 295.7 0.531 0.0 12.0 6.7130 31.6154 24.8166 50.7 81.6 6.79 295.8 0.529 0.0 13.0 6.7272 31.6161 24.8153 50.8 82.0 6.79 295.7 0.520 0.0 14.0 6.7318 31.6170 24.8155 50.8 82.0 6.79 296.0 0.507 0.0 15.0 6.7270 31.6166 24.8158 50.8 82.0 6.80 296.1 0.523 0.0 16.0 6.7271 31.6167 24.8158 50.8 81.9 6.79 295.9 0.515 0.0 17.0 6.7328 31.6169 24.8153 50.7 81.6 6.79 295.6 0.527 0.0 18.0 6.7337 31.6169 24.8151 50.7 81.9 6.78 295.4 0.522 0.0 19.0 6.7367 31.6175 24.8152 50.8 81.9 6.78 295.4 0.526 0.0 20.0 6.7373 31.6180 24.8155 50.8 81.9 6.78 295.4 0.511 0.0 21.0 6.7358 31.6174 24.8153 50.8 82.0 6.79 295.7 0.522 0.0 22.0 6.7356 31.6171 24.8151 50.8 81.9 6.79 296.0 0.515 0.0 23.0 6.7361 31.6174 24.8152 50.6 81.5 6.80 296.1 0.509 0.0 24.0 6.7389 31.6186 24.8158 50.8 82.0 6.79 295.9 0.508 0.0 25.0 6.7387 31.6192 24.8163 50.8 81.9 6.79 296.0 0.508 0.0 26.0 6.7445 31.6206 24.8167 50.8 82.0 6.79 295.8 0.499 0.0 27.0 6.7483 31.6221 24.8174 50.8 82.0 6.79 295.7 0.512 0.0 28.0 6.7477 31.6223 24.8176 50.8 82.0 6.79 295.7 0.503 0.0 29.0 6.7492 31.6231 24.8180 50.8 82.0 6.79 295.8 0.502 0.0 30.0 6.7511 31.6245 24.8189 50.8 82.2 6.79 295.7 0.498 0.0 31.0 6.7561 31.6270 24.8202 50.8 82.2 6.78 295.2 0.486 0.0 32.0 6.7621 31.6295 24.8214 50.7 81.8 6.78 295.2 0.478 0.0 33.0 6.7646 31.6311 24.8224 50.7 81.9 6.79 295.6 0.475 0.0 34.0 6.7793 31.6395 24.8271 50.8 82.2 6.78 295.2 0.464 0.0 35.0 6.8107 31.6585 24.8380 50.7 81.9 6.74 293.6 0.446 0.0 36.0 6.8474 31.6936 24.8609 50.5 81.5 6.70 292.0 0.423 0.0 37.0 6.8567 31.7051 24.8687 50.2 80.9 6.68 291.0 0.409 0.0 38.0 6.8784 31.7317 24.8869 50.0 80.6 6.67 290.4 0.377 0.0 39.0 6.9065 31.7623 24.9073 50.0 80.5 6.66 290.1 0.360 0.0 40.0 6.9217 31.7779 24.9176 50.1 80.8 6.65 289.8 0.343 0.0 41.0 6.9236 31.7790 24.9182 50.1 80.8 6.65 289.6 0.393 0.0 42.0 6.9264 31.7799 24.9186 50.1 80.8 6.65 289.8 0.361 0.0 43.0 6.9279 31.7815 24.9196 50.1 80.9 6.66 290.0 0.336 0.0 44.0 6.9285 31.7827 24.9205 50.1 80.9 6.65 289.8 0.337 0.0 45.0 6.9278 31.7843 24.9218 49.8 80.3 6.65 289.8 0.332 0.0 46.0 6.9276 31.7868 24.9238 50.0 80.6 6.65 289.6 0.328 0.0 47.0 6.9306 31.7894 24.9255 49.7 80.3 6.64 289.0 0.329 0.0 48.0 6.9313 31.7909 24.9266 49.8 80.5 6.62 288.4 0.330 0.0 49.0 6.9310 31.7927 24.9280 49.7 80.2 6.61 288.0 0.327 0.0 50.0 6.9326 31.7952 24.9298 49.7 79.9 6.61 288.0 0.328 0.0 51.0 6.9346 31.7979 24.9317 49.6 79.9 6.60 287.6 0.316 0.0 52.0 6.9367 31.8003 24.9333 49.5 79.7 6.59 287.2 0.312 0.0 53.0 6.9373 31.8015 24.9341 49.6 79.9 6.58 286.7 0.308 0.0 54.0 6.9374 31.8051 24.9370 49.4 79.5 6.56 285.8 0.316 0.0 55.0 6.9376 31.8076 24.9389 49.1 79.0 6.56 285.6 0.310 0.0 56.0 6.9377 31.8084 24.9395 49.1 78.7 6.56 285.6 0.308 0.0 57.0 6.9381 31.8086 24.9396 49.1 78.7 6.55 285.2 0.300 0.0 58.0 6.9385 31.8101 24.9407 49.0 78.7 6.54 285.0 0.306 0.0 59.0 6.9388 31.8110 24.9414 49.0 78.4 6.54 285.0 0.293 0.0 60.0 6.9388 31.8121 24.9423 48.9 78.3 6.54 284.7 0.303 0.0 61.0 6.9388 31.8126 24.9427 48.8 78.2 6.53 284.4 0.299 0.0 62.0 6.9382 31.8134 24.9434 48.7 78.2 6.53 284.2 0.301 0.0 63.0 6.9379 31.8138 24.9437 48.7 78.0 6.52 283.9 0.292 0.0 64.0 6.9380 31.8141 24.9440 48.7 77.9 6.51 283.7 0.290 0.0 65.0 6.9360 31.8143 24.9444 48.6 77.7 6.52 283.9 0.286 0.0 66.0 6.9354 31.8150 24.9450 48.5 77.4 6.52 284.1 0.284 0.0 67.0 6.9344 31.8158 24.9458 48.5 77.4 6.52 284.0 0.279 0.0 68.0 6.9342 31.8160 24.9460 48.4 77.0 6.51 283.6 0.281 0.0 69.0 6.9373 31.8221 24.9503 48.3 77.0 6.49 282.7 0.282 0.0 70.0 6.9411 31.8301 24.9561 48.1 76.7 6.47 281.9 0.283 0.0 71.0 6.9437 31.8348 24.9595 48.0 76.4 6.45 280.9 0.273 0.0 72.0 6.9453 31.8391 24.9627 47.8 76.0 6.43 280.1 0.273 0.0 73.0 6.9457 31.8419 24.9648 47.6 75.9 6.41 279.0 0.258 0.0 74.0 6.9445 31.8486 24.9703 47.4 75.3 6.37 277.5 0.252 0.0 75.0 6.9434 31.8592 24.9788 47.3 75.1 6.32 275.2 0.250 0.0 76.0 6.9474 31.8742 24.9900 47.0 74.7 6.29 274.1 0.237 0.0 77.0 6.9495 31.8782 24.9929 46.9 74.6 6.27 273.3 0.225 0.0 78.0 6.9511 31.8810 24.9949 46.7 74.1 6.27 272.9 0.244 0.0 78.9 6.9560 31.8875 24.9994 46.1 73.6 6.27 273.0 0.227 0.0 79.7 6.9648 31.9007 25.0086 45.1 71.3 6.22 270.7 0.210 0.0