Banner pic: Franzi Zur Linde (marine science student, 2012)
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What will we find in the twilight zone: the vast, mysterious, virtually unexplored realm hundreds of meters below the ocean's surface? Heidi M. Sosik of Woods Hole Oceanographic Institution wants to find out. In this wonder-filled talk, she shares her plan to investigate these uncharted waters, which may hold a million new species and 90 percent of the world's fish biomass, using submersible technology. What we discover there won't just astound us, Sosik says -- it will help us be better stewards of the world's oceans.
CNN July 2021 news: https://edition.cnn.com/2021/07/02/world/ocean-twilight-zone-whoi-c2e-scn-spc-intl/index.html |
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Big ideas …..from "Ocean Literacy":
From AS 91413 ..... ie what we need to know
The ocean composition gradients include pycnocline, mixed layer, deep layer, thermocline.
- The Earth has one big ocean with many features.
- The ocean and life in the ocean shape the features of the Earth.
- The ocean is a major influence on weather and climate.
- The ocean makes Earth habitable
- The ocean supports a great diversity of life and ecosystems.
- The ocean and humans are inextricably interconnected
- The ocean is largely unexplored.
From AS 91413 ..... ie what we need to know
- ocean composition – gradients, temperature, density, salinity, pressure
- ocean circulation – surface and thermohaline circulations, Coriolis effect
- carbon cycle – carbonate chemistry, physical pumps, biological pumps
- transport of matter and energy – heat, tides, waves
- Southern Oscillation – El Niño and La Niña.
The ocean composition gradients include pycnocline, mixed layer, deep layer, thermocline.
How many oceans are there?
The world according to fish....
Extra reading (esp. for scholarship students)
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Cristina's:
Waves PowerPoint
C Cycle interactive
C Cycle PowerPoint
Ocean Acidification PowerPoint
El Nino activity Word Doc
Guardian article and animations... Ocean Heat Waves
Have a look at the impact of the Aug 2022 storm here
So what do we think El Nino be like .... and why?
So what do we think El Nino be like .... and why?
My marvelous demo:
Blue=cold sea water Yellow=room temp sea water Red=warm fresh water
Look at what happened (pics below).....
also... what wood doesn't float? (Lignum and Natalie)
The data:
Matai: vol = 120.2 cm3 mass = 71.2 g
Lignum: vol = 84.5 cm3 mass = 117.8 g
......what now? (a calculation perhaps) ..... and what does that have to do with our pretty water?
maybe we should do some measuring.....
Blue=cold sea water Yellow=room temp sea water Red=warm fresh water
Look at what happened (pics below).....
also... what wood doesn't float? (Lignum and Natalie)
The data:
Matai: vol = 120.2 cm3 mass = 71.2 g
Lignum: vol = 84.5 cm3 mass = 117.8 g
......what now? (a calculation perhaps) ..... and what does that have to do with our pretty water?
maybe we should do some measuring.....
The full article here
Well, I guess we best find out the what and why of it all