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Mediterranean Intermediate Water (MIW) sinks below Antarctic Intermediate Water (AAIW) when they meet. However, MIW is much warmer in temperature than AAIW, and we know that density decreases with increasing temperature. How is it possible that warmer MIW water can sink below colder AAIW water?

Mediterranean Intermediate Water (MIW) sinks below Antarctic Intermediate Water (AAIW) when they meet. However, MIW is much warmer in temperature than AAIW, and we know that density decreases with increasing temperature. How is it possible that warmer MIW water can sink below colder AAIW water?

Applications and Investigations in Earth Science (9th Edition)
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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Mediterranean Intermediate Water (MIW) sinks below Antarctic Intermediate Water (AAIW) when they meet. However, MIW is much warmer in temperature than AAIW, and we know that density decreases with increasing temperature.

How is it possible that warmer MIW water can sink below colder AAIW water?

 
 
 
 
 
 

 

Please use the following temperature-salinity diagram to answer the following questions. Density T-S diagram (Lines of constant density in g/cm3) 1.0245 1.0250 15 1.0255 1.0260 1.0265 NACSW 1.0270 MIW AAIW 1.0275 NADW 1.0280 1.0285 AABW 33.5 34.0 34.5 35.0 35.5 Salinity (parts per thousand) North Atlantic Water Masses: 36.0 36.5 (AAIW) Antarctic Intermediate Water (AABW) Antarctic Bottom Water (NADW) North Atlantic Deep Water (NACSW) North Atlantic Central Surface Water (MIW) Mediterranean Intermediate Water 20 (ɔ.) Temperature 1.0290
Transcribed Image Text:Please use the following temperature-salinity diagram to answer the following questions. Density T-S diagram (Lines of constant density in g/cm3) 1.0245 1.0250 15 1.0255 1.0260 1.0265 NACSW 1.0270 MIW AAIW 1.0275 NADW 1.0280 1.0285 AABW 33.5 34.0 34.5 35.0 35.5 Salinity (parts per thousand) North Atlantic Water Masses: 36.0 36.5 (AAIW) Antarctic Intermediate Water (AABW) Antarctic Bottom Water (NADW) North Atlantic Deep Water (NACSW) North Atlantic Central Surface Water (MIW) Mediterranean Intermediate Water 20 (ɔ.) Temperature 1.0290
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