How shifts in the normal state of our world can make more or less very heavy water in the land of the ice

The heaviest water in our world is made in some places close to the land with the ice. This heavy water (in an actual sense) fills the bottom 40% of the world’s big open water body, moving around all sorts of things important for our life. Studies now show that almost half of this very heavy water is made in one spot near the ice down there. Since the 1990s, this heavy water making has gone down by about 40%. This drop is thought to be caused by both human-made warming and normal changes that happen in our world. In my work, I look at how normal shifts in our world alone can change heavy waters in the land of the ice. In this study, we use a computer to see how much one such normal shift from the small lands in the big water body (let us call it NS for normal state) controls two heavy water forming spots. We find that wind changes tied to a less strong NS push ice on the water towards the land, stopping some water areas from opening up and dropping heavy water making. In another spot of the land with ice, we see almost the counter sign, with more heavy water being formed during a less strong NS. This suggests that this same NS can have very different powers around the land of the ice. These things can help us better understand how heavy water forming changes over time, and how it changes the big water as our world warms quickly in the years to come.

 

* I used ChatGPT for synonyms.