Deep dive: What do polar oceans conceal?Yana Bebieva
Geophysical Fluid Dynamics Institute
https://www.oceanfdn.org/https://images4.persgroep.net/
Deep dive: What do polar oceans conceal?Yana Bebieva
Geophysical Fluid Dynamics Institute
CC BY-NC-ND, https://www.pmel.noaa.gov/
Sea ice melts
More ocean
exposed
Ocean absorbs
more heat
Warming
http://news.mit.edu/
Schematic of the Southern Ocean circulation
Deep dive: What do polar oceans conceal?Yana Bebieva
Geophysical Fluid Dynamics Institute
Australia
South America
Africa
Speer et al. (2000)
Vertical slice through the Southern Ocean
Ant
arct
ica
Warm & Salty WaterCold & Fresh Water
Sea ice
Convection
Typical vertical structure
Oce
an
Deep dive: What do polar oceans conceal?Yana Bebieva
Geophysical Fluid Dynamics Institute
Upp
er 5
00 m
~4000 m
http://news.mit.edu/
Typical vertical structure
Deep dive: What do polar oceans conceal?Yana Bebieva
Geophysical Fluid Dynamics Institute
Upp
er 5
00 m
~4000 m
Oce
an
http://clipart-library.com/
http://thual.perso.enseeiht.fr/http://news.mit.edu/
Deep dive: What do polar oceans conceal?Yana Bebieva
Geophysical Fluid Dynamics Institute
Upp
er 5
00 m
~4000 m
Oce
an
http://clipart-library.com/
http://thual.perso.enseeiht.fr/
Deep dive: What do polar oceans conceal?Yana Bebieva
Geophysical Fluid Dynamics Institute
CC BY-NC-ND, https://www.pmel.noaa.gov/
Take home messages:
1. In the Southern Ocean, sea ice forms if there are layers in the upper ocean.
2. Layers slow down the overall ocean warming.
Implication:Our results improve climate
modeling.