Ocean water rings, or eddies, form when western boundary currents form looping meanders that pinch off from the main current to form isolated and persistent rotating warm-core and cold-core bodies of water. Their presence is evidenced by differences between their surface temperatures and the temperatures of the waters surrounding them. The eddies are labeled as “W” (warm) if their centers are warmer relative to surrounding waters or “C” (cold) if their centers are colder, with two numbers for the year (i.e., 19 for 2019), followed by numbers indicating the sequence of their initial appearance for the year. On the Gulf Stream analysis, five oval-shaped warm eddies appear in Figure 10A-5. In particular, one located at approximately 39°N, 67.5°W is labeled “W1925.” The SST of ______°F reported in the ring is several degrees warmer than much surface water surrounding it. a.51 b.56 c.62 d.67 Elsewhere on Figure 10A-5, well away from the coast, are three cold rings. The SST values in and near these rings show the SSTs within these eddies had been ______ than in the surrounding ocean water. a.warmer b.cooler

Applications and Investigations in Earth Science (9th Edition)
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Ocean water rings, or eddies, form when western boundary currents form looping meanders that pinch off from the main current to form isolated and persistent rotating warm-core and cold-core bodies of water. Their presence is evidenced by differences between their surface temperatures and the temperatures of the waters surrounding them. The eddies are labeled as “W” (warm) if their centers are warmer relative to surrounding waters or “C” (cold) if their centers are colder, with two numbers for the year (i.e., 19 for 2019), followed by numbers indicating the sequence of their initial appearance for the year. On the Gulf Stream analysis, five oval-shaped warm eddies appear in Figure 10A-5. In particular, one located at approximately 39°N, 67.5°W is labeled “W1925.” The SST of ______°F reported in the ring is several degrees warmer than much surface water surrounding it.
a.51
b.56
c.62
d.67

Elsewhere on Figure 10A-5, well away from the coast, are three cold rings. The SST values in and near these rings show the SSTs within these eddies had been ______ than in the surrounding ocean water.
a.warmer
b.cooler

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75
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75
s 76 77 78 77 7
31 81 8
81 81
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94°W
89°30'W
85°W
80°30'W
76°W
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67°W
Approved for Public Release: Distribution Unlimited
Date: 2-7-2019
Gulf of Mexico B&W
Figure 10A-6.
Gulf of Mexico/lower North Atlantic Gulf Stream
analysis on 7 February 2019. [U.S. Naval Oceanographic Office]
47
ER ER R E
E E E RR
N.88
N.SE
N.ZE
N.67
N.97
N.EZ
N.07
Transcribed Image Text:67 77 75 74 73 73 73 76 73 te 24 1 3 3 h 73 72 7 74 7 73 74 63 68 78) 74 74 74 75 76 7372 p 74 75 75 75 75 73. 75 75 75 76 75 75 75 74 74 76 75 75 74 78 77 e 75 75 7 76 7e 74 74 75 76 77 75 75 75 75 76 77 77 T1 a0 80 70 7a 78 70 75 s 76 77 78 77 7 31 81 8 81 81 79 8) 79 79 80 81 81 81 81 81 81 & 94°W 89°30'W 85°W 80°30'W 76°W 71*30'W 67°W Approved for Public Release: Distribution Unlimited Date: 2-7-2019 Gulf of Mexico B&W Figure 10A-6. Gulf of Mexico/lower North Atlantic Gulf Stream analysis on 7 February 2019. [U.S. Naval Oceanographic Office] 47 ER ER R E E E E RR N.88 N.SE N.ZE N.67 N.97 N.EZ N.07
wroys
41 42 42
30 30
30
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41 49
W1916
m 20 30 30 32 32 33 37 39 40 41 45
30 30 30 31
32 33
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31 32 33 37 39
37 37
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31 32
31 31 32 32 3N4 37 38
20 30 31
33 31 33
32 33 33 33
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32 39 39
31
34 34 34 33 32 32 32 32 33 33 33
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32 34
31 36 35 37 36 35 35 35 33 32 41 43 46 47
35 36
39 38 37
40 39 38 36 33
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wesk
40
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39 41 39 34
35
40
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6 38 43
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40
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59 0 1- 57
whe
43
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59
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57
57
56 (6) 69
57
57
85
66
66 67
04
59
63 88
61
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66
51
55 59
58
62
53 57
59
67
68 6e68
67 4 67 65
66 66 63
61
62
71
67
67
66
63 66 66
66 66 66 66
66 65 65
66 66
62 64
7172 73 72 B67 6871
66 63 66 67 66 66 66 66
* 65 8 66
C1907
to 69 69 68 63 66 67 67 67 67 66 65 65 65 67 66 65 66
48 12
66 65 65
65 66 66 65
TO 70 67 63 69
69
69
71
57 74
67
67
67 e8 67 e8 70 70 e9 70 71 63 67 67 67 67 67 s e e 67 67 67 e es
70
69
68 67 67 67 68
67 68 68
69 68 67 67 67 67 67 66 67 67 68 68 67 67 67 67 67 66
65 66
66 20 5 70 69 70 69 67 67 70 68 63 69 69 68 68 68 68 68 68 63 68 67 67 69 70 68 67 6s 63 68 67 67 68
71 72 7 71 71 70 71 e9 e9 e9 ee e9 6e e9 70 70 e9 e e9 e9 e9 e9 70 e9 e9 ee 63 e9 6e ee ee
76 75 74 73 73 73 1 71 71 71 7O 70 69 69 70 71 71 71 71 69 69 71 72 69 68 69 71 71 71 71 70 69 69 69 69
76°W
71°30'W
67*W
62*30'W
58"W
53*30'W
49°W
Degf
Approved for Public Release: Distribution Unlimited
Date: 2-7-2019
North Atlantic B&W
Figure 10A-5. North Atlantic Gulf Stream analysis on 7 FEB 2019. [U.S. Naval Oceanographic Office]
N.ES
N.OS
N.4
N.t
N.SE
N. Lt
N.8€
N.ZS
Transcribed Image Text:wroys 41 42 42 30 30 30 30 31 36 33 41 49 W1916 m 20 30 30 32 32 33 37 39 40 41 45 30 30 30 31 32 33 33 40 40 31 31 31 31 32 30 30 31 32 33 37 39 37 37 30 30 31 32 31 31 32 32 3N4 37 38 20 30 31 33 31 33 32 33 33 33 33 32 39 39 31 34 34 34 33 32 32 32 32 33 33 33 39 45 32 34 31 36 35 37 36 35 35 35 33 32 41 43 46 47 35 36 39 38 37 40 39 38 36 33 40 44 16 58 wesk 40 40 39 41 39 34 35 40 38 6 38 43 42 4 37 34 2 48 65 64 40 44 42 41 7 54 57 53 57 y 50 44 60 57 1 48 61 64 64 58 55 ST 462 63 84 59 0 1- 57 whe 43 43 42 43 42 wis24 59 44/ 58 57 57 56 (6) 69 57 57 85 66 66 67 04 59 63 88 61 c10 66 51 55 59 58 62 53 57 59 67 68 6e68 67 4 67 65 66 66 63 61 62 71 67 67 66 63 66 66 66 66 66 66 66 65 65 66 66 62 64 7172 73 72 B67 6871 66 63 66 67 66 66 66 66 * 65 8 66 C1907 to 69 69 68 63 66 67 67 67 67 66 65 65 65 67 66 65 66 48 12 66 65 65 65 66 66 65 TO 70 67 63 69 69 69 71 57 74 67 67 67 e8 67 e8 70 70 e9 70 71 63 67 67 67 67 67 s e e 67 67 67 e es 70 69 68 67 67 67 68 67 68 68 69 68 67 67 67 67 67 66 67 67 68 68 67 67 67 67 67 66 65 66 66 20 5 70 69 70 69 67 67 70 68 63 69 69 68 68 68 68 68 68 63 68 67 67 69 70 68 67 6s 63 68 67 67 68 71 72 7 71 71 70 71 e9 e9 e9 ee e9 6e e9 70 70 e9 e e9 e9 e9 e9 70 e9 e9 ee 63 e9 6e ee ee 76 75 74 73 73 73 1 71 71 71 7O 70 69 69 70 71 71 71 71 69 69 71 72 69 68 69 71 71 71 71 70 69 69 69 69 76°W 71°30'W 67*W 62*30'W 58"W 53*30'W 49°W Degf Approved for Public Release: Distribution Unlimited Date: 2-7-2019 North Atlantic B&W Figure 10A-5. North Atlantic Gulf Stream analysis on 7 FEB 2019. [U.S. Naval Oceanographic Office] N.ES N.OS N.4 N.t N.SE N. Lt N.8€ N.ZS
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