Answered: The water conditions at 250 m fell…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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Question

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The water conditions at 250 m fell within the ranges of temperature and salinity indentified as an __ mass.

a. NACSW

b. MIW

c. NADW

d. AAIW

e. AABW

Transcribed Image Text:Figure 5B-2 provides data collected from the CORIOLIS ARVOR profiler #6903264 in the Atlantic Ocean. The left profile shows the change in temperature (°C) with depth. The right profile shows the change in salinity (practical salinity units) with depth. The data was collected on 13 November 2020. 1 decibar of water pressure corresponds to 1 m of water depth. Float 6903264, Cycle #466, 13/11/2020 21:00:30, Float 6903264, Cycle #466, 13/11/2020 2 1:00:30, A A Sea temperature - degree_Celsius Practical salinity - psu 5.0 7.5 10.0 12.5 15.0 17.5 20.0 35.25 35.50 35.75 36.00 36.25 250 250 500 500 750 750 1,000 1,000 1,250 1,250 1,500 1,500 1,750 1,750 2,000 2,000 Coriolis data centre 26/11/2020 Coriolis data centre 26/11/2020 Figure 5B-2. Profiles from CORIOLIS float No. 6901260. [Coriolis Operational Oceanography] Sea pressure - decibar Sea pressure - decibar

The Temperature-Salinity (T-S) diagram in Figure 5B-3 shows the typical range of
temperature and salinity combinations in ocean water and the resulting density. The
T-S diagram is a simple but powerful tool used to understand water mass properties.
(Refer to Investigation 3A to review the T-S diagram and its interpretation.)
20
1.0245 g/cm
15
1.0250
1.0255
1.0260
NACSW
10
1.0265
1.0270,
MIW
5
1.0275
1.0280
AAIW
ONADW
1.0285
AABW
33.5
34.0
34.5
35.0
35.5
Salinity (psu)
36.0
36.5
Temperature (°C)
1.0290

Expert Solution

Step 1

Here there are the two graphs, in which one is showing the sea temperature and sea pressure variation. The pressure corresponds to water depth, so we can correlate the seawater temperature with the depth. Also, another graph explains the practical salinity variation with the pressure, also we can correlate with the depth.