*2021/09/14 08:57:16.23 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2021/05/15 05:14:28.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 110 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : EFCDAEF1 NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 3.4 111.9 2 Temperature:CTD deg_C_(ITS90) 6.8407 9.2922 3 Salinity:CTD PSS-78 22.0555 32.0571 4 Sigma-t:CTD kg/m^3 17.0018 25.1479 5 Transmissivity:CTD:650 %/m 9.1 57 6 Transmissivity:CTD:530 %/m 7.2 85.8 7 Oxygen:Dissolved:CTD:Volume ml/l 4.8 7.1 8 Oxygen:Dissolved:CTD:Mass µmol/kg 209.2 311.9 9 Fluorescence:CTD:Seapoint mg/m^3 0.147 0.691 10 PAR:CTD µE/m^2/sec 0 0.6 $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 : 2021-006 AGENCY : IOS, Ocean Sciences Division, Sidney, B.C. COUNTRY : Canada PROJECT : Line P SCIENTIST : Robert M. PLATFORM : John P. Tully *LOCATION GEOGRAPHIC AREA : North-East Pacific STATION : CH25 EVENT NUMBER : 134 LATITUDE : 54 8.82000 N ! (deg min) LONGITUDE : 130 26.41000 W ! (deg min) WATER DEPTH : 116 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0443 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove some near-surface records; salinity was cleaned. 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. The Fluorescence:CTD channel was removed from the CTD files for events 0001 to 0015 due to excessive noise. The problem was resolved when a Y-cable was replaced before event 0016. Data collected during bottle stops looked better, so the channel is included in CHE files. 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. Much 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 for this cruise are considered, very roughly, to be ±3% except in areas of very large DO gradients, especially at the base of the mixed layer. For details on the processing see document 2021-006-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 3.4 9.2071 22.0555 17.0018 9.1 7.2 7.10 311.9 0.577 0.6 4.0 9.0199 23.6389 18.2615 11.0 9.3 7.07 310.0 0.553 0.4 5.0 9.2922 24.7018 19.0530 15.7 14.3 6.95 304.5 0.565 0.2 6.0 9.0044 26.9660 20.8605 26.5 25.2 6.90 301.9 0.547 0.0 7.0 8.9839 27.3040 21.1274 27.4 31.2 6.88 301.1 0.505 0.0 8.0 8.9649 27.7243 21.4584 29.9 32.2 6.85 299.5 0.538 0.0 9.0 8.8918 27.8057 21.5325 30.0 35.4 6.80 297.2 0.636 0.0 10.0 8.6211 29.0024 22.5069 32.5 35.5 6.75 295.0 0.691 0.0 11.0 8.2957 30.3557 23.6129 44.6 37.5 6.73 293.5 0.682 0.0 12.0 8.1313 30.7784 23.9676 46.8 52.5 6.72 293.2 0.612 0.0 13.0 8.0661 30.9198 24.0877 47.1 63.5 6.71 292.5 0.521 0.0 14.0 8.0601 30.9520 24.1138 50.3 70.4 6.69 291.9 0.478 0.0 15.0 8.0103 31.0814 24.2223 52.4 74.5 6.70 292.2 0.446 0.0 16.0 7.9885 31.1016 24.2412 53.4 77.7 6.72 293.0 0.429 0.0 17.0 7.9861 31.1076 24.2463 53.9 79.3 6.72 293.2 0.428 0.0 18.0 7.9893 31.1155 24.2520 53.6 79.7 6.72 293.1 0.427 0.0 19.0 7.9742 31.1411 24.2742 54.2 80.0 6.72 293.2 0.402 0.0 20.0 7.9226 31.1954 24.3241 54.7 80.6 6.73 293.3 0.370 0.0 21.0 7.9176 31.2283 24.3506 55.2 81.6 6.72 293.0 0.354 0.0 22.0 7.8881 31.2488 24.3708 55.5 82.3 6.72 293.1 0.325 0.0 23.0 7.8650 31.2867 24.4038 56.0 83.3 6.72 293.1 0.305 0.0 24.0 7.8724 31.3117 24.4224 56.4 84.1 6.71 292.5 0.289 0.0 25.0 7.8195 31.3212 24.4373 56.6 84.8 6.69 291.7 0.255 0.0 26.0 7.7979 31.3372 24.4528 56.9 85.3 6.66 290.5 0.237 0.0 27.0 7.7775 31.3509 24.4664 57.0 85.4 6.64 289.2 0.217 0.0 28.0 7.7450 31.3770 24.4914 56.8 85.8 6.61 288.2 0.206 0.0 29.0 7.7373 31.3940 24.5059 57.0 85.7 6.59 287.5 0.195 0.0 30.0 7.7033 31.4129 24.5254 57.0 85.7 6.58 286.9 0.191 0.0 31.0 7.6952 31.4169 24.5297 56.9 85.0 6.56 286.0 0.194 0.0 32.0 7.6738 31.4196 24.5348 56.7 85.5 6.56 286.0 0.177 0.0 33.0 7.6640 31.4195 24.5360 56.7 85.2 6.55 285.7 0.180 0.0 34.0 7.6584 31.4206 24.5377 56.5 85.3 6.53 284.8 0.173 0.0 35.0 7.6410 31.4211 24.5405 56.4 85.1 6.52 284.3 0.166 0.0 36.0 7.5367 31.4202 24.5541 55.7 85.1 6.51 283.7 0.159 0.0 37.0 7.4613 31.4192 24.5636 55.2 84.0 6.49 282.8 0.159 0.0 38.0 7.4362 31.4287 24.5744 54.6 82.5 6.47 281.8 0.162 0.0 39.0 7.4243 31.4399 24.5849 54.1 81.0 6.45 281.2 0.159 0.0 40.0 7.4199 31.4510 24.5942 53.9 80.1 6.43 280.2 0.159 0.0 41.0 7.4112 31.4563 24.5995 53.8 79.8 6.41 279.6 0.155 0.0 42.0 7.4012 31.4556 24.6003 53.5 79.8 6.41 279.5 0.159 0.0 43.0 7.3916 31.4546 24.6008 53.4 79.6 6.41 279.5 0.153 0.0 44.0 7.3769 31.4527 24.6013 53.2 79.3 6.39 278.6 0.147 0.0 45.0 7.3526 31.4619 24.6118 53.1 79.0 6.38 277.9 0.147 0.0 46.0 7.3166 31.4819 24.6324 53.5 78.9 6.36 277.0 0.147 0.0 47.0 7.2945 31.4961 24.6465 53.2 76.8 6.32 275.6 0.147 0.0 48.0 7.2739 31.5107 24.6608 53.4 80.1 6.28 273.9 0.151 0.0 49.0 7.2409 31.5427 24.6904 51.9 80.1 6.22 271.1 0.147 0.0 50.0 7.2523 31.5838 24.7211 51.9 79.8 6.13 267.3 0.147 0.0 51.0 7.2751 31.6279 24.7528 53.3 78.2 6.07 264.4 0.147 0.0 52.0 7.2506 31.6406 24.7660 52.8 77.9 6.03 262.7 0.147 0.0 53.0 7.2407 31.6465 24.7720 53.0 79.2 5.99 260.9 0.147 0.0 54.0 7.2176 31.6626 24.7878 52.9 79.1 5.95 259.2 0.147 0.0 55.0 7.2006 31.6733 24.7984 52.4 78.6 5.92 258.1 0.147 0.0 56.0 7.1920 31.6775 24.8029 51.9 77.2 5.90 257.3 0.147 0.0 57.0 7.1853 31.6810 24.8065 51.6 76.5 5.89 256.5 0.147 0.0 58.0 7.1782 31.6859 24.8113 51.4 75.9 5.87 255.6 0.150 0.0 59.0 7.1712 31.6950 24.8194 51.0 75.3 5.84 254.7 0.151 0.0 60.0 7.1546 31.7111 24.8343 50.8 74.6 5.81 253.1 0.147 0.0 61.0 7.1348 31.7269 24.8494 50.5 74.5 5.77 251.5 0.147 0.0 62.0 7.1271 31.7327 24.8550 50.1 74.0 5.76 250.9 0.147 0.0 63.0 7.1206 31.7361 24.8585 49.6 73.2 5.74 250.2 0.151 0.0 64.0 7.1132 31.7388 24.8616 49.5 72.7 5.71 248.7 0.147 0.0 65.0 7.0828 31.7531 24.8769 49.1 71.5 5.65 246.4 0.151 0.0 66.0 7.0388 31.7746 24.8996 47.8 71.4 5.59 243.7 0.147 0.0 67.0 7.0116 31.7874 24.9133 45.8 69.2 5.55 242.0 0.147 0.0 68.0 7.0096 31.7879 24.9139 44.3 65.1 5.53 241.1 0.147 0.0 69.0 6.9991 31.7975 24.9229 42.7 61.3 5.51 240.1 0.151 0.0 70.0 6.9923 31.8036 24.9286 41.5 59.6 5.49 239.3 0.150 0.0 71.0 6.9856 31.8064 24.9317 40.6 57.7 5.48 239.0 0.147 0.0 72.0 6.9829 31.8086 24.9337 39.7 56.3 5.48 238.7 0.158 0.0 73.0 6.9801 31.8113 24.9362 38.9 54.8 5.47 238.3 0.153 0.0 74.0 6.9763 31.8153 24.9399 38.3 54.2 5.46 237.7 0.153 0.0 75.0 6.9749 31.8169 24.9413 37.9 53.3 5.44 236.9 0.154 0.0 76.0 6.9629 31.8293 24.9527 37.4 52.1 5.39 234.9 0.154 0.0 77.0 6.9430 31.8529 24.9738 36.5 50.4 5.32 231.8 0.159 0.0 78.0 6.9139 31.8822 25.0007 35.5 50.4 5.24 228.5 0.167 0.0 79.0 6.9042 31.9019 25.0175 33.8 47.5 5.19 226.3 0.166 0.0 80.0 6.8946 31.9216 25.0343 32.1 44.8 5.15 224.2 0.172 0.0 81.0 6.8900 31.9372 25.0472 30.8 41.5 5.12 223.1 0.163 0.0 82.0 6.8899 31.9411 25.0502 29.7 39.6 5.11 222.7 0.164 0.0 83.0 6.8902 31.9438 25.0523 29.4 39.1 5.11 222.9 0.160 0.0 84.0 6.8904 31.9473 25.0551 29.5 39.3 5.11 222.7 0.163 0.0 85.0 6.8906 31.9550 25.0611 30.0 39.9 5.10 222.2 0.160 0.0 86.0 6.8907 31.9577 25.0632 30.7 40.8 5.09 221.8 0.163 0.0 87.0 6.8867 31.9704 25.0737 31.4 41.9 5.07 220.8 0.162 0.0 88.0 6.8793 31.9838 25.0852 31.8 43.4 5.04 219.7 0.169 0.0 89.0 6.8777 31.9863 25.0874 32.3 44.0 5.02 218.5 0.175 0.0 90.0 6.8736 31.9927 25.0930 32.2 43.8 5.00 217.8 0.180 0.0 91.0 6.8695 31.9998 25.0991 31.8 43.4 4.97 216.6 0.185 0.0 92.0 6.8662 32.0061 25.1045 31.8 42.6 4.93 215.0 0.188 0.0 93.0 6.8532 32.0289 25.1242 30.8 42.1 4.89 213.0 0.189 0.0 94.0 6.8469 32.0389 25.1329 30.1 41.6 4.86 211.7 0.195 0.0 95.0 6.8449 32.0418 25.1354 29.0 39.7 4.84 211.1 0.203 0.0 96.0 6.8443 32.0428 25.1363 27.7 37.1 4.84 210.8 0.211 0.0 97.0 6.8435 32.0447 25.1379 26.4 35.2 4.84 210.7 0.212 0.0 98.0 6.8425 32.0477 25.1404 25.5 33.5 4.84 210.6 0.216 0.0 99.0 6.8426 32.0476 25.1403 25.1 33.1 4.83 210.4 0.218 0.0 100.0 6.8408 32.0513 25.1434 25.2 32.8 4.82 209.9 0.225 0.0 101.0 6.8409 32.0519 25.1439 24.7 32.6 4.81 209.7 0.226 0.0 102.0 6.8407 32.0554 25.1467 24.6 31.9 4.82 209.8 0.230 0.0 103.0 6.8413 32.0569 25.1478 24.5 31.1 4.81 209.6 0.237 0.0 104.0 6.8412 32.0571 25.1479 24.4 31.1 4.80 209.3 0.228 0.0 105.0 6.8417 32.0569 25.1477 24.1 31.4 4.81 209.5 0.229 0.0 106.0 6.8420 32.0566 25.1474 24.1 32.3 4.81 209.5 0.232 0.0 107.0 6.8422 32.0564 25.1473 24.5 32.4 4.81 209.5 0.243 0.0 108.0 6.8424 32.0563 25.1471 24.7 32.2 4.81 209.4 0.232 0.0 109.0 6.8426 32.0563 25.1471 24.8 32.3 4.81 209.4 0.235 0.0 110.0 6.8428 32.0561 25.1469 25.3 33.3 4.80 209.3 0.227 0.0 111.0 6.8429 32.0561 25.1469 25.7 33.7 4.81 209.6 0.226 0.0 111.9 6.8429 32.0561 25.1469 26.3 34.7 4.80 209.2 0.231 0.0