INTRODUCTION

I am a physical oceanographer specializing in the Southern Ocean. My research focuses on the dynamics of the Southern Ocean and its role in regulating heat, freshwater, carbon, and material cycles within the climate system. I utilize a range of tools including in-situ ocean observations (such as ship-based measurements, autonomous profiling floats, and biologging), satellite remote sensing, numerical simulations, and statistical data analysis. I aim to distill complex physical processes—such as turbulence and the interactions between the ocean, atmosphere, sea ice, and ice shelves—into simplified frameworks, while exploring climate variability on decadal to centennial scales. I am also committed to enhancing the sustainability of ocean monitoring systems by employing advanced tools like ocean gliders and machine learning techniques.

WHAT I STUDY

Southern Ocean dynamics

What is the response to a changing climate?

Antarctic ice melt

Antarctic Ice Sheet possesses 70% of Earth's freshwater

Global carbon cycle

SO absorbs 75% heat and 40% carbon of anthropogenic

Ocean mixing

Understanding the chaos and the system of geophysical fluid

Towards optimized ocean monitoring system

International collaboration and autonomy in the icy ocean

Frontiers in oceanography with ML and AI

Earth science is big data science


Research Background

The Southern Ocean is the only sea that connects the Atlantic, Indian, and Pacific Oceans. The Antarctic ice sheet, surrounded by the Southern Ocean, holds 90% of the Earth's ice and 70% of the freshwater on land, capable to raise the global sea level by 60 meters. Although 93% of the heat generated by global warming is absorbed by the oceans, the Southern Ocean alone absorbs 75% of its heat and 43% of the anthropogenic CO2. Despite its climatic importance, observational data from the Southern Ocean are extremely limited, and numerical models are insufficiently constrained. As a result, the uncertainties in the behavior of the Southern Ocean and ocean-ice sheet interactions are the biggest sources of error in climate and sea level predictions over decades to centuries.

Works

TWEETS

GALLERY

Ship CTD measurement

The gold standard method to diagnose the ocean's health

Icebreaker Shirase

A mighty ship capable of breaking multi-meter thick ice

Flying over the Antarctic coast

Can you spot differences between sea ice and icebergs?

Adelie penguins

They are also a part of the ocean biological community

Waves dumped by grease ice

An aspect of the polar ocean during winter

Whales in the Southern Ocean

It's a paradise for the world's largest animal

CONTACT

kaihe.yamazaki AT utas.edu.au or kaiheyamazaki AT gmail.com

ARC Australian Centre for Excellence in Antarctic Science (ACEAS)
Institute for Marine and Antarctic Studies
University of Tasmania
IMAS Waterfront Building, 20 Castray Esplanade, Battery Point TAS 7004 AUSTRALIA


Welcome DM on X/Twitter! 👌