Arjun Babu Nellikkattil

Arjun Babu Nellikkattil

he/him

I am a climate scientist passionate about developing advanced mathematical and machine learning tools to improve our understanding of the climate system and predict future changes. My current research focuses on refining climate risk assessments and informing policy decisions by providing precise, data-driven insights into future precipitation trends.

Anthropogenically Driven Changes in the Carbon to Phosphorus Ratio of Marine Dissolved Organic Matter

Published in Global Biogeochemical Cycles, 2024

This study shows that climate change is likely to significantly alter the balance of carbon and phosphorus in dissolved organic matter (DOM) in the ocean, especially in nutrient-poor regions. As ocean waters warm and become more stratified, less phosphorus reaches the surface, leading to changes in how phytoplankton grow and how carbon is stored and moved in the ocean. These changes could reduce the ocean’s ability to store carbon, weakening a key natural process that helps slow climate change. The study also finds that shifts in the carbon-to-phosphorus ratio of DOM may be an early and sensitive indicator of ocean warming.

Recommended citation: Sreeush, Mohanan Geethalekshmi, Eun Young Kwon, Sun‐Seon Lee, and Arjun Babu Nellikkattil. "Anthropogenically driven changes in the carbon to phosphorus ratio of marine dissolved organic matter." Global Biogeochemical Cycles 38, no. 6 (2024): e2023GB008069.
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