*2021/09/14 08:57:15.52 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2021/05/14 11:37:33.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 186 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : 577276DF NUMBER OF CHANNELS : 10 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 3.2 187.8 2 Temperature:CTD deg_C_(ITS90) 6.6586 9.1416 3 Salinity:CTD PSS-78 26.54 32.4323 4 Sigma-t:CTD kg/m^3 20.509 25.4672 5 Transmissivity:CTD:650 %/m 34.6 58.4 6 Transmissivity:CTD:530 %/m 50 87.9 7 Oxygen:Dissolved:CTD:Volume ml/l 4.17 6.94 8 Oxygen:Dissolved:CTD:Mass µmol/kg 181.7 303.5 9 Fluorescence:CTD:Seapoint mg/m^3 0.134 0.886 10 PAR:CTD µE/m^2/sec 0 0.1 $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 : CH15 EVENT NUMBER : 116 LATITUDE : 54 18.30000 N ! (deg min) LONGITUDE : 130 42.63000 W ! (deg min) WATER DEPTH : 191 *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 and records corrupted by shed wakes near the bottom of the cast; salinity was cleaned very 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. 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 3.2 9.1368 26.5400 20.5090 40.4 50.6 6.94 303.5 0.886 0.1 4.0 9.1416 26.5538 20.5191 40.2 50.0 6.91 302.3 0.868 0.1 5.0 9.0839 26.8301 20.7430 41.2 50.5 6.87 300.6 0.844 0.0 6.0 8.8109 27.1806 21.0555 42.6 54.9 6.85 299.7 0.834 0.0 7.0 8.6028 27.5015 21.3355 44.0 59.2 6.81 297.8 0.809 0.0 8.0 8.3827 27.8667 21.6517 44.7 62.4 6.75 295.2 0.781 0.0 9.0 8.0919 28.4763 22.1688 43.3 63.1 6.72 293.7 0.734 0.0 10.0 7.8487 29.0973 22.6885 37.2 64.8 6.70 292.7 0.672 0.0 11.0 7.7277 29.3930 22.9367 34.6 66.7 6.68 291.8 0.595 0.0 12.0 7.7048 29.4599 22.9922 46.8 71.1 6.66 290.9 0.539 0.0 13.0 7.6654 29.5675 23.0819 52.0 75.0 6.64 289.8 0.493 0.0 14.0 7.6449 29.6624 23.1592 52.9 76.7 6.60 288.1 0.449 0.0 15.0 7.5704 29.8467 23.3138 53.7 78.3 6.55 285.7 0.401 0.0 16.0 7.4861 30.0388 23.4758 53.4 79.0 6.48 282.8 0.349 0.0 17.0 7.4121 30.2229 23.6303 53.9 80.2 6.41 279.5 0.313 0.0 18.0 7.2365 30.6189 23.9646 53.9 81.7 6.34 276.4 0.262 0.0 19.0 7.2097 30.6777 24.0144 54.8 83.0 6.30 274.7 0.225 0.0 20.0 7.1970 30.7058 24.0381 56.1 84.4 6.28 273.8 0.211 0.0 21.0 7.1883 30.7270 24.0559 56.8 85.5 6.26 273.2 0.195 0.0 22.0 7.1876 30.7455 24.0706 57.4 85.9 6.27 273.3 0.190 0.0 23.0 7.1842 30.7756 24.0947 57.5 86.4 6.28 273.7 0.192 0.0 24.0 7.1802 30.8404 24.1461 58.0 86.7 6.28 273.8 0.187 0.0 25.0 7.1749 30.8626 24.1643 57.8 87.0 6.28 273.9 0.174 0.0 26.0 7.1712 30.8697 24.1704 58.1 87.1 6.28 274.0 0.175 0.0 27.0 7.1653 30.8845 24.1828 58.2 87.2 6.27 273.5 0.172 0.0 28.0 7.1735 30.9686 24.2478 58.1 87.1 6.25 272.4 0.171 0.0 29.0 7.1486 30.9856 24.2645 57.9 87.4 6.24 272.3 0.166 0.0 30.0 7.1254 30.9970 24.2765 58.2 86.8 6.25 272.5 0.162 0.0 31.1 7.1121 31.0488 24.3190 57.8 87.4 6.25 272.5 0.159 0.0 32.0 7.1097 31.0673 24.3338 58.4 87.8 6.25 272.5 0.161 0.0 33.0 7.1089 31.0902 24.3520 58.2 87.9 6.25 272.6 0.154 0.0 34.0 7.1097 31.1244 24.3787 57.9 87.9 6.26 272.8 0.156 0.0 35.0 7.1106 31.1520 24.4003 58.0 87.8 6.26 272.7 0.155 0.0 36.0 7.1109 31.1797 24.4221 57.8 87.2 6.25 272.3 0.151 0.0 37.0 7.1106 31.2008 24.4387 57.6 86.9 6.24 272.1 0.149 0.0 38.0 7.1106 31.2130 24.4483 57.5 86.5 6.23 271.6 0.153 0.0 39.0 7.1101 31.2288 24.4608 57.5 86.4 6.20 270.4 0.155 0.0 40.0 7.1106 31.2371 24.4673 57.5 85.9 6.17 269.1 0.151 0.0 41.0 7.1108 31.2488 24.4765 57.7 86.5 6.14 267.8 0.148 0.0 42.0 7.1064 31.2762 24.4986 58.0 86.9 6.11 266.3 0.148 0.0 43.0 7.0993 31.2942 24.5137 58.1 87.2 6.09 265.4 0.150 0.0 44.0 7.0977 31.2972 24.5163 58.1 87.7 6.07 264.8 0.147 0.0 45.0 7.0957 31.3034 24.5214 58.1 87.7 6.07 264.5 0.147 0.0 46.0 7.0921 31.3205 24.5353 57.7 87.5 6.06 264.0 0.154 0.0 47.0 7.0765 31.3596 24.5681 57.7 87.1 6.03 262.8 0.153 0.0 48.0 7.0698 31.3746 24.5808 57.6 86.7 5.99 261.2 0.154 0.0 49.0 7.0602 31.3984 24.6008 57.6 87.0 5.96 259.9 0.149 0.0 50.0 7.0532 31.4186 24.6176 57.6 86.9 5.95 259.3 0.147 0.0 51.0 7.0472 31.4433 24.6378 57.6 87.1 5.93 258.6 0.154 0.0 52.0 7.0470 31.4472 24.6409 57.7 87.1 5.93 258.6 0.153 0.0 53.0 7.0477 31.4490 24.6422 57.7 85.5 5.93 258.6 0.147 0.0 54.0 7.0490 31.4555 24.6472 57.7 85.9 5.93 258.6 0.148 0.0 55.0 7.0496 31.4626 24.6527 57.5 80.0 5.93 258.3 0.149 0.0 56.0 7.0481 31.4732 24.6612 57.5 82.0 5.91 257.6 0.147 0.0 57.0 7.0458 31.4790 24.6661 57.5 86.7 5.89 256.6 0.154 0.0 58.0 7.0313 31.5113 24.6934 57.5 86.5 5.86 255.2 0.151 0.0 59.0 7.0156 31.5529 24.7282 57.5 86.5 5.83 253.9 0.147 0.0 60.0 7.0144 31.5544 24.7295 57.5 86.4 5.81 253.3 0.147 0.0 61.0 7.0108 31.5605 24.7348 57.4 86.6 5.80 252.7 0.147 0.0 62.0 7.0013 31.5774 24.7494 57.4 86.5 5.77 251.3 0.147 0.0 63.0 6.9919 31.5934 24.7632 57.2 86.5 5.74 249.9 0.147 0.0 64.0 6.9839 31.6106 24.7778 57.2 85.7 5.70 248.6 0.147 0.0 65.0 6.9748 31.6352 24.7983 57.1 86.3 5.68 247.6 0.147 0.0 66.0 6.9758 31.6391 24.8013 57.0 86.3 5.67 246.9 0.147 0.0 67.0 6.9779 31.6430 24.8041 57.0 86.1 5.66 246.7 0.152 0.0 68.0 6.9785 31.6463 24.8066 56.9 85.8 5.66 246.6 0.147 0.0 69.0 6.9753 31.6488 24.8090 56.8 85.3 5.65 246.3 0.147 0.0 70.0 6.9724 31.6522 24.8120 56.9 85.1 5.65 246.2 0.149 0.0 71.0 6.9765 31.6555 24.8141 56.8 85.3 5.64 246.0 0.152 0.0 72.0 6.9758 31.6568 24.8152 56.7 85.2 5.64 245.7 0.147 0.0 73.0 6.9748 31.6583 24.8165 56.7 85.1 5.63 245.4 0.147 0.0 74.0 6.9746 31.6594 24.8174 56.5 85.1 5.64 245.6 0.155 0.0 75.0 6.9750 31.6598 24.8177 56.7 85.1 5.64 245.7 0.147 0.0 76.0 6.9698 31.6612 24.8194 56.8 85.2 5.64 245.7 0.150 0.0 77.0 6.9638 31.6659 24.8239 57.0 85.3 5.64 245.6 0.146 0.0 78.0 6.9705 31.6720 24.8279 57.2 86.2 5.62 245.0 0.147 0.0 79.0 6.9796 31.6855 24.8373 57.0 86.3 5.60 244.0 0.154 0.0 80.0 6.9744 31.6983 24.8480 56.4 85.7 5.56 242.3 0.165 0.0 81.0 6.9686 31.7122 24.8597 55.7 84.7 5.52 240.7 0.151 0.0 82.0 6.9309 31.7294 24.8782 55.8 83.6 5.50 239.8 0.147 0.0 83.0 6.9201 31.7364 24.8851 56.6 83.6 5.49 239.4 0.147 0.0 84.0 6.9187 31.7384 24.8869 56.7 85.0 5.49 239.3 0.151 0.0 85.0 6.9177 31.7413 24.8893 57.0 81.7 5.49 239.0 0.142 0.0 86.0 6.9170 31.7431 24.8908 57.2 86.0 5.48 238.7 0.145 0.0 87.0 6.9154 31.7490 24.8957 57.3 86.4 5.47 238.1 0.139 0.0 88.0 6.9102 31.7582 24.9036 57.2 85.8 5.43 236.5 0.144 0.0 89.0 6.8938 31.7959 24.9354 57.1 86.1 5.36 233.4 0.134 0.0 90.0 6.8685 31.8497 24.9811 56.7 86.1 5.29 230.5 0.138 0.0 91.0 6.8591 31.8680 24.9967 56.6 84.9 5.25 228.9 0.145 0.0 92.0 6.8561 31.8727 25.0008 56.5 85.2 5.24 228.2 0.134 0.0 93.0 6.8552 31.8738 25.0018 56.4 84.3 5.23 227.9 0.138 0.0 94.0 6.8540 31.8756 25.0033 56.5 85.0 5.23 227.7 0.138 0.0 95.0 6.8517 31.8794 25.0066 56.4 85.0 5.22 227.3 0.140 0.0 96.0 6.8502 31.8839 25.0104 56.4 84.9 5.20 226.7 0.141 0.0 97.0 6.8501 31.8891 25.0145 56.3 84.9 5.20 226.5 0.144 0.0 98.0 6.8506 31.8907 25.0157 56.1 84.6 5.19 226.3 0.143 0.0 99.0 6.8506 31.8913 25.0162 56.2 84.2 5.19 226.2 0.146 0.0 100.0 6.8509 31.8925 25.0171 56.1 84.3 5.19 226.3 0.145 0.0 101.0 6.8509 31.8952 25.0192 56.0 84.2 5.19 226.1 0.146 0.0 102.0 6.8474 31.9015 25.0246 56.0 84.0 5.18 225.6 0.137 0.0 103.0 6.8443 31.9046 25.0274 56.1 84.1 5.16 225.0 0.137 0.0 104.0 6.8446 31.9082 25.0302 55.8 83.9 5.16 224.6 0.134 0.0 105.0 6.8476 31.9127 25.0334 55.7 84.1 5.15 224.3 0.147 0.0 106.0 6.8494 31.9177 25.0371 55.7 83.8 5.15 224.3 0.135 0.0 107.0 6.8503 31.9217 25.0401 55.7 83.4 5.14 224.1 0.134 0.0 108.0 6.8510 31.9276 25.0447 55.5 83.3 5.13 223.6 0.140 0.0 109.0 6.8511 31.9334 25.0492 55.4 83.1 5.12 223.3 0.138 0.0 110.0 6.8509 31.9371 25.0522 55.2 82.8 5.13 223.5 0.143 0.0 111.0 6.8506 31.9398 25.0543 55.1 82.8 5.12 222.9 0.141 0.0 112.0 6.8489 31.9447 25.0584 55.0 82.5 5.11 222.6 0.145 0.0 113.0 6.8444 31.9530 25.0655 54.8 82.2 5.10 222.1 0.147 0.0 114.0 6.8419 31.9590 25.0706 54.8 81.9 5.09 221.8 0.139 0.0 115.0 6.8451 31.9608 25.0716 54.8 81.8 5.09 221.6 0.141 0.0 116.0 6.8472 31.9655 25.0750 54.7 81.6 5.08 221.2 0.146 0.0 117.0 6.8460 31.9719 25.0802 54.6 81.7 5.05 219.8 0.144 0.0 118.0 6.8131 32.0110 25.1153 54.4 81.1 4.95 215.7 0.134 0.0 119.0 6.7793 32.0528 25.1526 54.6 81.3 4.85 211.2 0.138 0.0 120.0 6.7647 32.1025 25.1936 54.5 81.5 4.77 207.8 0.139 0.0 121.0 6.7534 32.1327 25.2189 54.3 81.7 4.71 205.3 0.140 0.0 122.0 6.7498 32.1638 25.2439 53.4 81.5 4.68 203.8 0.138 0.0 123.0 6.7475 32.1754 25.2533 52.8 80.0 4.65 202.6 0.146 0.0 124.0 6.7443 32.1838 25.2603 52.5 78.6 4.62 201.4 0.144 0.0 125.0 6.7368 32.1959 25.2708 51.7 77.6 4.60 200.4 0.136 0.0 126.0 6.7345 32.1996 25.2740 52.0 76.8 4.58 199.6 0.147 0.0 127.0 6.7320 32.2065 25.2798 52.0 75.5 4.57 198.9 0.147 0.0 128.0 6.7290 32.2141 25.2862 51.8 75.2 4.55 198.4 0.152 0.0 129.0 6.7220 32.2314 25.3007 51.6 76.0 4.52 196.9 0.147 0.0 130.0 6.7155 32.2607 25.3246 50.9 76.2 4.48 195.1 0.157 0.0 131.0 6.7121 32.2879 25.3465 50.1 75.6 4.45 193.9 0.155 0.0 132.0 6.7099 32.3044 25.3598 49.3 73.7 4.44 193.3 0.151 0.0 133.0 6.7093 32.3062 25.3613 49.2 71.9 4.43 193.0 0.153 0.0 134.0 6.7073 32.3133 25.3671 48.5 71.0 4.42 192.4 0.151 0.0 135.0 6.7028 32.3237 25.3759 48.4 70.7 4.40 191.6 0.159 0.0 136.0 6.6982 32.3297 25.3812 48.2 70.5 4.38 190.6 0.167 0.0 137.0 6.6967 32.3321 25.3833 47.9 70.2 4.36 189.9 0.159 0.0 138.0 6.6922 32.3352 25.3864 47.6 69.6 4.34 189.2 0.172 0.0 139.0 6.6888 32.3399 25.3905 47.2 68.9 4.33 188.7 0.182 0.0 140.0 6.6865 32.3440 25.3940 46.9 68.1 4.32 188.3 0.167 0.0 141.0 6.6861 32.3453 25.3951 46.3 67.0 4.32 188.0 0.170 0.0 142.0 6.6851 32.3482 25.3975 46.4 67.5 4.32 188.0 0.167 0.0 143.0 6.6848 32.3497 25.3987 46.0 66.8 4.31 187.8 0.171 0.0 144.0 6.6830 32.3550 25.4032 46.1 66.6 4.30 187.5 0.172 0.0 145.0 6.6828 32.3556 25.4037 46.1 66.3 4.30 187.5 0.177 0.0 146.0 6.6826 32.3563 25.4042 45.9 66.3 4.30 187.2 0.171 0.0 147.0 6.6824 32.3571 25.4049 45.8 65.9 4.29 186.9 0.173 0.0 148.0 6.6825 32.3573 25.4050 45.7 66.3 4.29 186.8 0.179 0.0 149.0 6.6825 32.3577 25.4053 45.4 65.8 4.29 186.9 0.175 0.0 150.0 6.6824 32.3579 25.4055 45.7 65.9 4.29 186.8 0.173 0.0 151.0 6.6827 32.3573 25.4050 45.5 65.7 4.29 187.0 0.195 0.0 152.0 6.6825 32.3582 25.4057 45.6 65.0 4.29 186.8 0.177 0.0 153.0 6.6821 32.3595 25.4068 45.7 66.1 4.29 186.9 0.187 0.0 154.0 6.6823 32.3594 25.4067 45.7 66.1 4.29 186.8 0.173 0.0 155.0 6.6824 32.3595 25.4068 45.6 65.6 4.29 186.7 0.184 0.0 156.0 6.6824 32.3595 25.4068 45.7 65.5 4.28 186.6 0.177 0.0 157.0 6.6824 32.3597 25.4069 45.4 65.6 4.28 186.6 0.180 0.0 158.0 6.6827 32.3597 25.4069 45.5 65.6 4.28 186.5 0.176 0.0 159.0 6.6827 32.3598 25.4070 45.6 65.8 4.29 186.7 0.180 0.0 160.0 6.6837 32.3593 25.4065 45.9 66.2 4.29 186.9 0.186 0.0 161.0 6.6841 32.3595 25.4066 45.9 66.3 4.29 186.8 0.183 0.0 162.0 6.6842 32.3594 25.4065 45.9 66.3 4.29 186.7 0.175 0.0 163.0 6.6840 32.3598 25.4068 45.9 66.0 4.29 186.8 0.165 0.0 164.0 6.6841 32.3597 25.4067 45.9 66.1 4.29 186.9 0.171 0.0 165.0 6.6839 32.3603 25.4072 46.1 66.2 4.29 186.9 0.171 0.0 166.0 6.6834 32.3612 25.4080 45.7 66.5 4.28 186.6 0.166 0.0 167.0 6.6832 32.3628 25.4093 46.2 66.8 4.28 186.3 0.163 0.0 168.0 6.6832 32.3634 25.4097 46.3 66.7 4.28 186.4 0.168 0.0 169.0 6.6834 32.3636 25.4099 46.0 66.7 4.28 186.6 0.164 0.0 170.0 6.6834 32.3647 25.4107 46.0 66.5 4.28 186.5 0.172 0.0 171.0 6.6837 32.3643 25.4104 45.7 66.2 4.28 186.6 0.179 0.0 172.0 6.6837 32.3642 25.4103 46.0 65.7 4.29 186.8 0.178 0.0 173.0 6.6839 32.3646 25.4106 46.1 66.6 4.29 186.7 0.172 0.0 174.0 6.6838 32.3647 25.4107 46.2 66.7 4.29 186.9 0.168 0.0 175.0 6.6837 32.3670 25.4125 46.3 65.6 4.29 186.7 0.171 0.0 176.0 6.6830 32.3702 25.4151 46.4 66.7 4.28 186.6 0.171 0.0 177.0 6.6832 32.3702 25.4151 46.2 67.0 4.28 186.5 0.171 0.0 178.0 6.6833 32.3704 25.4152 46.4 66.8 4.28 186.6 0.183 0.0 179.0 6.6827 32.3724 25.4169 46.4 66.7 4.28 186.4 0.199 0.0 180.0 6.6805 32.3784 25.4219 46.1 66.6 4.28 186.2 0.180 0.0 181.0 6.6795 32.3810 25.4241 46.0 66.8 4.27 186.0 0.189 0.0 182.0 6.6792 32.3813 25.4244 46.3 66.9 4.26 185.8 0.168 0.0 183.0 6.6724 32.3995 25.4396 45.6 66.7 4.25 185.0 0.168 0.0 184.0 6.6688 32.4083 25.4470 44.7 66.6 4.22 183.7 0.171 0.0 185.0 6.6617 32.4249 25.4610 43.7 64.8 4.20 182.9 0.189 0.0 186.0 6.6615 32.4254 25.4614 42.5 61.9 4.20 182.7 0.195 0.0 187.0 6.6599 32.4291 25.4645 41.6 59.1 4.19 182.5 0.198 0.0 187.8 6.6586 32.4323 25.4672 40.7 58.4 4.17 181.7 0.204 0.0