*2018/01/17 13:47:20.82 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2017/08/18 06:11:36.000 TIME INCREMENT : 0 0 0 0.416667E-01 0 ! (day hr min sec ms) NUMBER OF RECORDS : 151 DATA DESCRIPTION : CTD FILE TYPE : ASCII CRC : BA324B28 NUMBER OF CHANNELS : 9 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ----------------------------- --------------- -------------- -------------- 1 Pressure:CTD dbar 2.2 151.8 2 Temperature:CTD deg_C_(ITS90) 7.9313 15.2507 3 Salinity:CTD PSS-78 31.991 33.8557 4 Sigma-t:CTD kg/m^3 23.628 26.41 5 Transmissivity:CTD %/m 40 62.8 6 Oxygen:Dissolved:CTD:Volume ml/l 2.96 6.54 7 Oxygen:Dissolved:CTD:Mass µmol/kg 128.7 285 8 Fluorescence:CTD:Seapoint mg/m^3 0.55E-01 2.46 9 PAR:CTD µE/m^2/sec 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 ' ' 7 F ' ' 2 7 -99 ' ' 6 F ' ' 1 8 -99 ' ' 8 F ' ' 3 9 -99 ' ' 7 F ' ' 1 $END *ADMINISTRATION MISSION : 2017-008 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 : P4 EVENT NUMBER : 26 LATITUDE : 48 38.83000 N ! (deg min) LONGITUDE : 126 41.39000 W ! (deg min) WATER DEPTH : 1333 *INSTRUMENT TYPE : Sea-Bird CTD MODEL : SBE-911plus SERIAL NUMBER : 0550 LOCATION : Mid-ship ! custom item *COMMENTS CTDEDIT was used to remove some near-surface records and records corrupted by shed wakes; 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. The fluorometer values drifted during the cruise starting with slightly high dark values early in the cruise and rising to about 0.20 mg/m^3 by the end. A time-dependent correction was applied based on values at 4000 m with an adjustment to ensure no negative values were produced. This is an estimate and produces dark values at 2000 m ranging from 0.02 mg/m^3 to 0.09 mg/m^3. NOTE: While the Fluorescence:CTD 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: ±0.5 ml/l from 0 to 200 dbar. ±0.15 ml/l from 200 to 500 dbar. ±0.04 ml/l below 500 dbar. For details on the processing see document: 2017-008-proc.pdf. !--1--- ---2---- ---3---- ---4---- --5-- --6--- --7-- ---8--- --9--- !Pressu Temperat Salinity Sigma-t: Trans Oxygen Oxyge Fluores PAR: !re:CTD ure:CTD :CTD CTD missi :Disso n:Dis cence: CTD ! vity: lved: solve CTD: ! CTD CTD: d:CTD Seapoin ! Volume :Mass t !------ -------- -------- -------- ----- ------ ----- ------- ------ *END OF HEADER 2.2 15.2507 31.9941 23.6280 41.7 6.44 281.0 1.526 1.0 3.0 15.1952 31.9942 23.6401 41.7 6.46 281.8 1.511 0.8 4.2 15.0821 31.9926 23.6633 41.3 6.45 281.2 1.575 0.7 5.0 14.9352 31.9910 23.6935 41.2 6.47 282.0 1.603 0.4 6.0 14.7188 31.9933 23.7413 40.7 6.49 282.8 1.684 0.4 7.0 14.5426 31.9920 23.7774 40.0 6.49 283.1 1.820 0.2 8.0 14.2168 31.9989 23.8506 40.9 6.51 283.9 2.002 0.2 9.0 13.6706 32.0084 23.9695 41.3 6.54 285.0 2.296 0.1 10.0 13.3435 32.0348 24.0553 41.9 6.48 282.6 2.399 0.1 11.0 13.2317 32.0857 24.1168 43.2 6.43 280.3 2.441 0.1 12.0 13.0086 32.1030 24.1741 45.1 6.41 279.2 2.460 0.0 13.0 12.9083 32.1215 24.2079 45.3 6.38 278.0 2.415 0.0 14.0 12.8360 32.1514 24.2451 45.9 6.34 276.3 2.298 0.0 15.1 12.6928 32.1732 24.2896 47.7 6.27 273.3 2.119 0.0 15.9 12.6486 32.1750 24.2995 48.5 6.21 270.4 2.061 0.0 17.0 12.5066 32.1992 24.3454 49.0 6.15 268.0 1.989 0.0 18.0 12.2182 32.1872 24.3907 49.1 6.12 266.8 1.956 0.0 19.0 12.0437 32.1837 24.4206 50.3 6.10 265.7 1.873 0.0 20.0 11.8273 32.1902 24.4657 50.6 6.10 265.7 1.749 0.0 21.0 11.7310 32.2099 24.4986 51.2 6.10 265.9 1.632 0.0 22.0 11.6887 32.2305 24.5223 52.4 6.10 265.7 1.532 0.0 23.0 11.6457 32.2363 24.5347 52.9 6.14 267.8 1.411 0.0 24.0 11.5183 32.2903 24.5998 53.5 6.25 272.3 1.282 0.0 25.0 11.5026 32.3123 24.6197 54.9 6.31 274.8 1.230 0.0 26.0 11.5114 32.3214 24.6252 55.3 6.33 275.6 1.137 0.0 27.0 11.4736 32.3325 24.6406 55.6 6.29 274.2 1.084 0.0 28.0 11.1651 32.3252 24.6902 56.1 6.23 271.3 0.977 0.0 29.0 10.8395 32.3576 24.7727 56.7 6.17 268.6 0.907 0.0 30.0 10.5063 32.3789 24.8467 57.2 6.11 266.1 0.854 0.0 31.0 10.0600 32.4148 24.9499 57.6 6.08 264.9 0.810 0.0 32.0 9.8969 32.4333 24.9914 58.1 6.06 264.0 0.754 0.0 33.0 9.7750 32.4535 25.0271 58.5 6.08 264.6 0.700 0.0 34.0 9.6575 32.4879 25.0731 59.3 6.10 265.8 0.633 0.0 34.6 9.5629 32.5189 25.1126 59.9 6.11 266.2 0.604 0.0 36.1 9.5212 32.5163 25.1173 60.2 6.12 266.7 0.549 0.0 37.0 9.4857 32.5267 25.1311 60.1 6.14 267.3 0.542 0.0 38.0 9.4530 32.5347 25.1426 60.3 6.14 267.5 0.530 0.0 39.0 9.4173 32.5404 25.1528 60.3 6.15 267.9 0.517 0.0 40.0 9.3444 32.5486 25.1708 60.3 6.17 268.6 0.506 0.0 41.1 9.3019 32.5583 25.1852 60.5 6.17 268.8 0.480 0.0 42.0 9.2959 32.5658 25.1920 60.6 6.17 268.7 0.473 0.0 42.9 9.2890 32.5674 25.1943 60.6 6.15 267.9 0.460 0.0 44.0 9.2436 32.5717 25.2049 60.7 6.11 266.1 0.437 0.0 45.0 9.1780 32.5805 25.2221 60.8 6.08 264.7 0.417 0.0 46.0 9.0212 32.6026 25.2639 60.8 6.06 263.8 0.377 0.0 47.0 8.9124 32.6222 25.2962 61.1 6.04 262.9 0.366 0.0 48.0 8.8771 32.6252 25.3040 61.2 6.02 262.0 0.344 0.0 49.0 8.8655 32.6260 25.3064 61.4 6.00 261.5 0.344 0.0 50.0 8.8582 32.6242 25.3061 61.4 6.00 261.3 0.329 0.0 50.7 8.8184 32.6307 25.3173 61.4 6.01 261.6 0.327 0.0 52.3 8.7548 32.6431 25.3368 61.4 5.91 257.2 0.285 0.0 53.0 8.6691 32.6630 25.3654 61.5 5.86 255.1 0.272 0.0 54.0 8.6309 32.6726 25.3787 61.7 5.80 252.4 0.257 0.0 55.0 8.6068 32.6769 25.3858 61.7 5.73 249.7 0.246 0.0 56.0 8.5565 32.7278 25.4332 61.8 5.66 246.4 0.224 0.0 57.0 8.5206 32.7786 25.4785 62.0 5.58 242.7 0.212 0.0 58.0 8.5409 32.8166 25.5052 62.1 5.46 237.7 0.209 0.0 59.0 8.7432 32.9147 25.5512 62.1 5.32 231.4 0.221 0.0 60.0 8.7720 32.9481 25.5730 62.2 5.22 227.4 0.217 0.0 61.0 8.8359 33.0025 25.6057 62.3 5.13 223.2 0.219 0.0 62.0 8.8378 33.0203 25.6194 62.4 5.05 219.9 0.225 0.0 62.9 8.8363 33.0329 25.6295 62.4 5.01 218.2 0.218 0.0 64.2 8.8363 33.0628 25.6529 62.3 4.91 213.9 0.234 0.0 65.0 8.8375 33.1026 25.6839 62.3 4.79 208.6 0.229 0.0 66.0 8.8026 33.1821 25.7515 62.4 4.66 202.9 0.229 0.0 67.0 8.7790 33.2244 25.7883 62.5 4.58 199.3 0.218 0.0 68.0 8.7892 33.2393 25.7984 62.5 4.52 196.6 0.217 0.0 69.0 8.8020 33.2604 25.8129 62.5 4.47 194.4 0.205 0.0 70.0 8.8109 33.2750 25.8230 62.5 4.42 192.3 0.214 0.0 71.0 8.8224 33.2890 25.8322 62.5 4.37 190.4 0.208 0.0 72.0 8.8310 33.2973 25.8373 62.5 4.34 189.0 0.205 0.0 73.2 8.8393 33.3049 25.8420 62.5 4.30 187.0 0.198 0.0 74.0 8.8491 33.3238 25.8553 62.5 4.25 184.8 0.201 0.0 75.0 8.8618 33.3400 25.8660 62.5 4.21 183.1 0.205 0.0 76.0 8.8657 33.3509 25.8739 62.5 4.18 181.9 0.206 0.0 77.0 8.8641 33.3788 25.8960 62.5 4.15 180.5 0.203 0.0 78.0 8.8584 33.4097 25.9211 62.6 4.11 178.8 0.190 0.0 79.0 8.8556 33.4255 25.9339 62.6 4.07 177.3 0.188 0.0 80.0 8.8521 33.4348 25.9417 62.6 4.04 175.9 0.181 0.0 81.0 8.8485 33.4429 25.9486 62.7 4.02 175.1 0.180 0.0 82.0 8.8474 33.4468 25.9519 62.7 4.00 174.1 0.180 0.0 83.0 8.8409 33.4615 25.9644 62.7 3.98 173.1 0.171 0.0 84.0 8.8284 33.4843 25.9842 62.7 3.94 171.6 0.164 0.0 85.0 8.8115 33.5112 26.0079 62.7 3.90 169.7 0.160 0.0 86.0 8.7956 33.5355 26.0294 62.7 3.86 167.9 0.156 0.0 87.0 8.7792 33.5536 26.0461 62.7 3.81 165.9 0.139 0.0 88.0 8.7562 33.5782 26.0690 62.7 3.76 163.7 0.138 0.0 89.0 8.7438 33.5898 26.0800 62.7 3.73 162.2 0.131 0.0 90.0 8.7327 33.6008 26.0903 62.7 3.70 161.0 0.131 0.0 91.0 8.7228 33.6123 26.1009 62.7 3.67 159.8 0.125 0.0 92.0 8.7119 33.6229 26.1108 62.7 3.65 158.8 0.119 0.0 93.0 8.7030 33.6280 26.1162 62.7 3.64 158.2 0.119 0.0 94.0 8.6957 33.6318 26.1203 62.8 3.62 157.7 0.118 0.0 95.0 8.6893 33.6390 26.1270 62.7 3.60 156.8 0.110 0.0 96.0 8.6891 33.6416 26.1290 62.7 3.58 155.7 0.111 0.0 97.0 8.6819 33.6500 26.1367 62.7 3.54 154.0 0.107 0.0 98.0 8.6586 33.6785 26.1627 62.6 3.50 152.3 0.099 0.0 99.0 8.6442 33.6864 26.1711 62.7 3.47 151.1 0.095 0.0 100.0 8.6010 33.6945 26.1841 62.6 3.46 150.4 0.095 0.0 101.0 8.5562 33.7098 26.2029 62.6 3.45 150.1 0.086 0.0 101.6 8.5431 33.7214 26.2140 62.6 3.45 150.2 0.083 0.0 103.3 8.5451 33.7226 26.2147 62.6 3.42 148.7 0.083 0.0 104.0 8.5384 33.7250 26.2176 62.7 3.40 147.8 0.088 0.0 105.0 8.5224 33.7277 26.2221 62.7 3.38 147.0 0.083 0.0 106.0 8.4938 33.7350 26.2322 62.6 3.36 146.3 0.083 0.0 107.0 8.4609 33.7439 26.2442 62.6 3.35 146.0 0.083 0.0 108.0 8.4431 33.7494 26.2513 62.6 3.35 145.7 0.080 0.0 109.0 8.4125 33.7511 26.2572 62.6 3.35 145.7 0.070 0.0 110.0 8.3827 33.7490 26.2601 62.7 3.35 145.9 0.070 0.0 110.7 8.3676 33.7481 26.2617 62.7 3.35 145.9 0.070 0.0 111.7 8.3581 33.7499 26.2645 62.6 3.34 145.3 0.070 0.0 113.3 8.3342 33.7500 26.2682 62.7 3.35 145.6 0.070 0.0 114.0 8.3142 33.7531 26.2737 62.7 3.35 145.7 0.070 0.0 115.0 8.2993 33.7552 26.2776 62.7 3.35 145.9 0.070 0.0 116.0 8.2970 33.7566 26.2790 62.7 3.35 145.8 0.073 0.0 117.0 8.2942 33.7572 26.2799 62.7 3.35 145.7 0.075 0.0 118.0 8.2752 33.7597 26.2847 62.7 3.35 145.6 0.070 0.0 119.0 8.2487 33.7628 26.2911 62.6 3.35 145.9 0.070 0.0 119.6 8.2369 33.7661 26.2955 62.7 3.35 145.9 0.070 0.0 120.9 8.2334 33.7789 26.3061 62.6 3.32 144.5 0.069 0.0 122.0 8.2227 33.7843 26.3119 62.7 3.31 144.1 0.069 0.0 123.0 8.1851 33.7857 26.3186 62.6 3.32 144.4 0.058 0.0 124.0 8.1512 33.7903 26.3273 62.7 3.32 144.5 0.058 0.0 125.0 8.1370 33.7911 26.3301 62.7 3.32 144.5 0.058 0.0 126.0 8.1253 33.7900 26.3309 62.6 3.33 144.6 0.058 0.0 126.8 8.1118 33.7931 26.3354 62.6 3.32 144.6 0.058 0.0 128.3 8.0936 33.7971 26.3412 62.7 3.32 144.3 0.058 0.0 129.0 8.0785 33.7985 26.3446 62.6 3.31 144.1 0.058 0.0 130.0 8.0633 33.8009 26.3487 62.6 3.31 143.8 0.058 0.0 131.0 8.0616 33.8037 26.3512 62.6 3.30 143.5 0.058 0.0 132.0 8.0686 33.8087 26.3540 62.7 3.29 143.1 0.058 0.0 133.0 8.0723 33.8128 26.3567 62.6 3.27 142.1 0.058 0.0 134.0 8.0879 33.8233 26.3626 62.7 3.23 140.3 0.058 0.0 135.1 8.1111 33.8345 26.3680 62.5 3.15 136.8 0.058 0.0 136.0 8.1160 33.8422 26.3733 62.5 3.07 133.7 0.058 0.0 137.0 8.1075 33.8440 26.3760 62.4 3.04 132.2 0.058 0.0 138.0 8.1004 33.8474 26.3797 62.4 3.02 131.2 0.058 0.0 139.0 8.0978 33.8534 26.3848 62.4 2.99 130.1 0.058 0.0 140.0 8.0820 33.8556 26.3889 62.4 2.97 129.2 0.058 0.0 141.1 8.0782 33.8557 26.3895 62.3 2.96 128.7 0.058 0.0 141.9 8.0700 33.8555 26.3906 62.3 2.96 129.0 0.058 0.0 143.0 8.0321 33.8477 26.3901 62.3 3.02 131.3 0.058 0.0 144.0 7.9828 33.8407 26.3919 62.4 3.09 134.3 0.055 0.0 145.0 7.9442 33.8364 26.3942 62.5 3.13 136.3 0.058 0.0 146.0 7.9327 33.8381 26.3972 62.5 3.16 137.4 0.058 0.0 147.0 7.9371 33.8423 26.3998 62.5 3.17 137.8 0.058 0.0 148.1 7.9441 33.8461 26.4018 62.4 3.17 137.7 0.058 0.0 149.0 7.9474 33.8474 26.4023 62.5 3.16 137.6 0.058 0.0 150.0 7.9482 33.8489 26.4034 62.5 3.17 137.7 0.058 0.0 151.0 7.9399 33.8526 26.4075 62.5 3.15 137.2 0.058 0.0 151.8 7.9313 33.8541 26.4100 62.5 3.16 137.4 0.058 0.0