A T-S diagram for an oceanographic station in the tropical Atlantic (5N 25W) is

Question

A T-S diagram for an oceanographic station in the tropical Atlantic (5N 25W) is shown on Figure 1. The maximum depth at the station is 4370 m. Calculate the following:

(a) The percentage of Antarctic Intermediate Water, North Atlantic Deep Water and water at 535 m depth at 808 m.

(b) The percentage of Antarctic Intermediate Water, North Atlantic Deep Water and Antarctic bottom water at 1700 m.

Assume r = 1025 kg m-3; rair = 1.23 kg m-3; g = 9.81 ms-2 where necessary

30 25 20 S 15 10 34.0 0 to 48 57 13 62 67 72 76 81 86 96 15 134 154 193 243 293 356 401 446 490 535 AAIW 626 716 80 1089 NADW 900 1287 1688 188 2185 2483 278 3973 to -4370 AABW 34.5 35.0 35.5 36.0 Salinity, s (psu) 36.5

Explanation / Answer

a)The percentage of Antartic intermediate water is calculated from the depth and height.

Depth=808m

Height of water=535m

Percentage=((808-535)/535)×100=51.02%

b)The percentage at a height of 1700m is given as

Percentage=((1700-808)/1700)×100=52.47%

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.