Leg 2: January 23-February 24, 1998

Las Palmas, Canary Islands to Charleston, South Carolina

Station Latitude

(N)

Longitude

(W)

Dist.

(km)

Cum

(km)

Depth

(m)

Date Start

(time)

Stop

(time)

Sta

(time)

Total

Hours

Total

Days

0 2808 1525 0 0 0 1/23/98 1000 1000 0.0 0.0 0.0
1 2755 1322 203 203 130 1/23/98 1931 2001 0.5 10.0 0.4
2 2754 1324 4 207 300 1/23/98 2131 2216 0.8 12.3 0.5
3 2753 1325 2 209 600 1/24/98 2346 0031 0.8 14.5 0.6
4 2751 1333 14 223 1000 1/24/98 0201 0255 0.9 16.9 0.7
5 2748 1349 27 249 1500 1/24/98 0425 0543 1.3 19.7 0.8
6 2737 1413 44 294 2000 1/24/98 0753 0923 1.5 23.4 1.0
7 2726 1451 66 360 2600 1/24/98 1235 1435 2.0 28.6 1.2
8 2714 1535 76 435 3200 1/24/98 1815 2045 2.5 34.8 1.4
9 2702 1607 57 493 3200 1/25/98 2331 0201 2.5 40.0 1.7
10 2650 1640 59 552 3700 1/25/98 0453 0738 2.8 45.6 1.9
11 2640 1712 56 608 3700 1/25/98 1022 1307 2.8 51.1 2.1
12 2631 1752 68 676 3700 1/25/98 1624 1909 2.8 57.2 2.4
13 2621 1820 50 726 3700 1/26/98 2136 0021 2.8 62.4 2.6
14 2610 1849 52 778 3500 1/26/98 0253 0538 2.8 67.6 2.8
15 2559 1922 59 837 3500 1/26/98 0831 1116 2.8 73.3 3.1
16 2548 1954 57 894 4100 1/26/98 1402 1702 3.0 79.0 3.3
17 2537 2026 57 951 4100 1/26/98 1949 2249 3.0 84.8 3.5
18 2526 2057 56 1007 4500 1/27/98 0132 0438 3.1 90.6 3.8
19 2515 2129 57 1065 4500 1/27/98 0725 1031 3.1 96.5 4.0
20 2504 2202 59 1124 5000 1/27/98 1323 1641 3.3 102.7 4.3
21 2447 2248 84 1207 5000 1/28/98 2043 0001 3.3 111.0 4.6
22 2430 2329 76 1283 5000 1/28/98 0341 0659 3.3 117.0 4.9
23 2430 2413 74 1357 5000 1/28/98 1033 1351 3.3 123.9 5.2
24 2430 2457 74 1432 5000 1/28/98 1726 2044 3.3 130.7 5.4
25 2430 2541 74 1506 5000 1/29/98 0018 0336 3.3 137.6 5.7
26 2430 2625 74 1580 5000 1/29/98 0710 1028 3.3 144.5 6.0
27 2430 2709 74 1654 5000 1/29/98 1403 1721 3.3 151.4 6.3
28 2430 2753 74 1729 5000 1/30/98 2055 0013 3.3 158.2 6.6
29 2430 2837 74 1803 5000 1/30/98 0347 0705 3.3 165.1 6.9
30 2430 2926 83 1885 5000 1/30/98 1105 1423 3.3 172.4 7.2
31 2430 3016 84 1970 5000 1/30/98 1826 2144 3.3 179.7 7.5
32 2430 3105 83 2052 5000 1/31/98 0143 0501 3.3 187.0 7.8
33 2430 3155 84 2137 5000 1/31/98 0904 1222 3.3 194.4 8.1
34 2430 3244 83 2220 5000 1/31/98 1621 1939 3.3 201.7 8.4
35 2430 3334 84 2304 5000 2/01/98 2342 0300 3.3 209.0 8.7
36 2430 3423 83 2387 5000 2/01/98 0700 1018 3.3 216.3 9.0
37 2430 3513 84 2471 5000 2/01/98 1420 1738 3.3 223.6 9.3
38 2430 3602 83 2554 5000 2/02/98 2138 0056 3.3 230.9 9.6
39 2430 3652 84 2638 5000 2/02/98 0458 0816 3.3 238.3 9.9
40 2430 3741 83 2721 5000 2/02/98 1216 1534 3.3 245.6 10.2
41 2430 3831 84 2805 5000 2/02/98 1936 2254 3.3 252.9 10.5
42 2430 3915 74 2879 5000 2/03/98 0229 0547 3.3 259.8 10.8
43 2430 3959 74 2954 5000 2/03/98 0921 1239 3.3 266.7 11.1
44 2430 4032 56 3009 5000 2/03/98 1523 1841 3.3 272.7 11.4
45 2430 4105 56 3065 5000 2/04/98 2124 0042 3.3 278.7 11.6
46 2430 4138 56 3121 5000 2/04/98 0326 0644 3.3 284.7 11.9
47 2430 4211 56 3176 5000 2/04/98 0928 1246 3.3 290.8 12.1
48 2430 4244 56 3232 5000 2/04/98 1529 1847 3.3 296.8 12.4
49 2430 4317 56 3288 5000 2/05/98 2131 0049 3.3 302.8 12.6
50 2430 4350 56 3343 5000 2/05/98 0333 0651 3.3 308.9 12.9
51 2430 4423 56 3399 5000 2/05/98 0934 1252 3.3 314.9 13.1
52 2430 4456 56 3455 5000 2/05/98 1536 1854 3.3 320.9 13.4
53 2430 4529 56 3510 5000 2/06/98 2138 0056 3.3 326.9 13.6
54 2430 4602 56 3566 5000 2/06/98 0339 0657 3.3 333.0 13.9
55 2430 4635 56 3622 5000 2/06/98 0941 1259 3.3 339.0 14.1
56 2430 4708 56 3677 5000 2/06/98 1543 1901 3.3 345.0 14.4
57 2430 4741 56 3733 5000 2/07/98 2144 0102 3.3 351.0 14.6
58 2430 4814 56 3789 5000 2/07/98 0346 0704 3.3 357.1 14.9
59 2430 4847 56 3844 5000 2/07/98 0948 1306 3.3 363.1 15.1
60 2430 4920 56 3900 5000 2/07/98 1549 1907 3.3 369.1 15.4
61 2430 4953 56 3956 5000 2/08/98 2151 0109 3.3 375.2 15.6
62 2430 5026 56 4012 5000 2/08/98 0352 0710 3.3 381.2 15.9
63 2430 5059 56 4067 5000 2/08/98 0954 1312 3.3 387.2 16.1
64 2430 5132 56 4123 5000 2/08/98 1556 1914 3.3 393.2 16.4
65 2430 5205 56 4179 5000 2/09/98 2157 0115 3.3 399.3 16.6
66 2430 5238 56 4234 5000 2/09/98 0359 0717 3.3 405.3 16.9
67 2430 5311 56 4290 5000 2/09/98 1001 1319 3.3 411.3 17.1
68 2430 5344 56 4346 5000 2/09/98 1602 1920 3.3 417.3 17.4
69 2430 5428 74 4420 5000 2/10/98 2255 0213 3.3 424.2 17.7
70 2430 5512 74 4494 5000 2/10/98 0547 0905 3.3 431.1 18.0
71 2430 5556 74 4568 5000 2/10/98 1239 1557 3.3 438.0 18.2
72 2430 5640 74 4643 5000 2/10/98 1932 2250 3.3 444.8 18.5
73 2430 5724 74 4717 5000 2/11/98 0224 0542 3.3 451.7 18.8
74 2430 5808 74 4791 5000 2/11/98 0916 1234 3.3 458.6 19.1
75 2430 5852 74 4865 5000 2/11/98 1609 1927 3.3 465.5 19.4
76 2430 5936 74 4940 5000 2/12/98 2301 0219 3.3 472.3 19.7
77 2430 6020 74 5014 5000 2/12/98 0553 0911 3.3 479.2 20.0
78 2430 6104 74 5088 5000 2/12/98 1246 1604 3.3 486.1 20.3
79 2430 6148 74 5162 5000 2/12/98 1938 2256 3.3 492.9 20.5
80 2430 6232 74 5237 5000 2/13/98 0230 0548 3.3 499.8 20.8
81 2430 6316 74 5311 5000 2/13/98 0923 1241 3.3 506.7 21.1
82 2430 6400 74 5385 5000 2/13/98 1615 1933 3.3 513.6 21.4
83 2430 6444 74 5459 5000 2/14/98 2307 0225 3.3 520.4 21.7
84 2430 6528 74 5534 5000 2/14/98 0600 0918 3.3 527.3 22.0
85 2430 6612 74 5608 5000 2/14/98 1252 1610 3.3 534.2 22.3
86 2430 6656 74 5682 5000 2/14/98 1944 2302 3.3 541.0 22.5
87 2430 6740 74 5756 5000 2/15/98 0237 0555 3.3 547.9 22.8
88 2430 6824 74 5830 5000 2/15/98 0929 1247 3.3 554.8 23.1
89 2430 6908 74 5905 5000 2/15/98 1621 1939 3.3 561.7 23.4
90 2501 6930 68 5973 5000 2/16/98 2257 0215 3.3 568.3 23.7
91 2523 6952 55 6028 5000 2/16/98 0456 0814 3.3 574.2 23.9
92 2545 7014 55 6083 5000 2/16/98 1054 1412 3.3 580.2 24.2
93 2608 7037 57 6140 5000 2/16/98 1659 2017 3.3 586.3 24.4
94 2630 7100 56 6196 5000 2/17/98 2301 0219 3.3 592.3 24.7
95 2630 7121 35 6231 5000 2/17/98 0403 0721 3.3 597.4 24.9
96 2630 7144 38 6269 5000 2/17/98 0914 1232 3.3 602.5 25.1
97 2630 7206 37 6306 5000 2/17/98 1422 1740 3.3 607.7 25.3
98 2630 7228 37 6342 5000 2/17/98 1930 2248 3.3 612.8 25.5
99 2630 7251 38 6381 5000 2/18/98 0041 0359 3.3 618.0 25.7
100 2630 7313 37 6417 5000 2/18/98 0550 0908 3.3 623.1 26.0
101 2630 7335 37 6454 5000 2/18/98 1058 1416 3.3 628.3 26.2
102 2630 7358 38 6492 5000 2/18/98 1609 1927 3.3 633.5 26.4
103 2630 7415 28 6520 5000 2/19/98 2057 0015 3.3 638.3 26.6
104 2630 7431 27 6546 5000 2/19/98 0145 0503 3.3 643.1 26.8
105 2630 7448 28 6575 5000 2/19/98 0633 0951 3.3 647.9 27.0
106 2630 7505 28 6603 5000 2/19/98 1121 1439 3.3 652.7 27.2
107 2630 7518 22 6624 5000 2/19/98 1609 1927 3.3 657.5 27.4
108 2630 7530 20 6644 5000 2/20/98 2057 0015 3.3 662.3 27.6
109 2630 7442 20 6664 5000 2/20/98 0145 0503 3.3 667.1 27.8
110 2630 7554 20 6684 5000 2/20/98 0633 0951 3.3 671.9 28.0
111 2630 7605 18 6702 5000 2/20/98 1121 1439 3.3 676.7 28.2
112 2630 7612 12 6714 5000 2/20/98 1609 1927 3.3 681.5 28.4
113 2630 7618 10 6724 5000 2/21/98 2057 0015 3.3 686.3 28.6
114 2630 7625 12 6736 5000 2/21/98 0145 0503 3.3 691.1 28.8
115 2630 7631 10 6746 5000 2/21/98 0633 0951 3.3 695.9 29.0
116 2630 7638 12 6757 4570 2/21/98 1121 1427 3.1 700.5 29.2
117 2630 7644 10 6767 2000 2/21/98 1557 1727 1.5 703.5 29.3
118 2630 7651 12 6779 1000 2/21/98 1857 1951 0.9 705.9 29.4
119 2630 7656 8 6787 500 2/21/98 2121 2206 0.8 708.1 29.5
120 2620 7658 19 6806 0 2/21/98 2259 2259 0.0 709.0 29.5
121 2549 7711 61 6867 0 2/22/98 0151 0151 0.0 711.9 29.7
122 2630 7856 191 7058 0 2/22/98 1049 1049 0.0 720.8 30.0
123 2700 7912 62 7119 500 2/22/98 1349 1434 0.8 724.6 30.2
124 2700 7917 8 7128 559 2/22/98 1604 1649 0.8 726.8 30.3
125 2700 7923 10 7138 501 2/22/98 1819 1904 0.8 729.1 30.4
126 2700 7930 12 7149 521 2/22/98 2034 2119 0.8 731.3 30.5
127 2700 7937 12 7161 583 2/22/98 2249 2334 0.8 733.6 30.6
128 2700 7941 7 7167 699 2/23/98 0104 0149 0.8 735.8 30.7
129 2700 7947 10 7177 505 2/23/98 0319 0404 0.8 738.1 30.8
130 2700 7952 8 7186 372 2/23/98 0534 0619 0.8 740.3 30.8
131 2700 7956 7 7192 209 2/23/98 0749 0834 0.8 742.6 30.9
132 3247 7955 643 7835 0 2/24/98 1444 1444 0.0 772.7 32.2


Summary of projected times (all in GMT):

Total distance (km) = 7835

Total distance (nmi) = 4227

Assumed ship speed (kts) = 11.5

Total steaming time (hours, days) = 401.5, 16.7

Total station time (hours, days) = 371.2, 15.5

Total of 772.7 (hours), 32.2 (days) required



The track line for this Leg is exactly the same (inverted) as for Leg 1. This station plan assumes 128 full water column CTD stations. Note this lists a total of 132 "station" numbers, four of which are turning points. Station numbers listed here with zero depths are turning points used to calculate steaming time. The ship will not stop and water samples will not be drawn at those four stations.

The projected times listed here are all in GMT and assume that the ship can maintain an average speed of 11.5 knots, including slowing down and speeding up for stations, weather-related slow downs, etc. The Ronald H. Brown is rated at 15 knots. Should excellence in seamanship allow the ship to maintain an average speed of 13 knots, this schedule would effectively allow for two days of weather and mechanical delays.

This schedule also assumes a minimum of 90 minutes are required to sample each rosette once the CTD is back on deck. If the stations are spaced particularly close so that the steaming time is less than 90 minutes, the ship is assumed to have to hove-to at the next station until sampling is complete.

Some extra time (6 minutes) is also added for the deployment and recovery of the rosette.