Ricky Lanusse
1 min readFeb 14, 2024

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Hi, there Thor!

I wouldn't say that is a different view but a complementary one.

Here's a the melting process (maybe I should have written it in the article, now that you point this out-thanks!)

To what extent is melting ice and sea level rise cause-and-effect?

The contribution of ice sheets to sea level rise responds to two main components:

- Surface Mass Balance (SMB): the balance of surface mass accumulation (precipitation) and ablation (melting) on the ice sheet.

- Dynamic Contributions: physical transportation of grounded ice into the ocean through glacier flow. Once afloat, this ice contributes to sea level rise through the displacement of water.

The Surface Mass Balance contribution accounts for only about 10% of the Antarctic Ice Sheet’s total mass balance. In Antarctica’s dry and frigid conditions, the SMB contribution remains relatively low compared to Greenland, where it constitutes up to 68% of the total mass balance.

The loss of ice shelves can lead to an accelerated ice flow from the land into the ocean, exacerbating sea level rise. Portions of the Ice sheets grounded below sea level on reverse or retrograde slopes are particularly susceptible to rapid collapse via the Marine Ice Sheet Instability (MISI) mechanism.

Other dynamic processes, such as ice shelf hydrofracturing and Marine Ice Cliff Instability (MICI), can also contribute to sea level rise.

Once again, thanks for pointing this out and for the very relevant link you shared (great visuals, too!)

Southern winds from Patagonia,

Ricky

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Ricky Lanusse
Ricky Lanusse

Written by Ricky Lanusse

Patagonian skipping stones professional. Antarctic sapiens 🇦🇶 on https://rickylanusse.substack.com/

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