Head of Hydroclimate Science

Dr Nans Addor

Nans is the Head of the Hydroclimate Team at Fathom, where he coordinates research across climate, hydrological and coastal modeling to ensure our solutions remain cutting-edge and aligned with client needs. The team integrates process understanding with large-scale datasets and models to capture flood drivers across the globe. By combining machine learning with process-based models and collaborating closely with software engineers, they generate the large event sets essential to assessing flood risk.

Nans’ background is in computational hydrology. His PhD and postdoctoral research focused on climate change impacts on river flow and uncertainty propagation in large modeling chains. He also co-created the open hydrological dataset CAMELS for the US, which paved the way for many CAMELS datasets worldwide.

Dedicated to open science, Nans is committed to building models that address critical societal questions—a mission that makes his role at Fathom a natural fit.

Outside of his work, Nans can be found cooking up a storm in the kitchen and exploring the great outdoors with his family.

Key topics

  • Hydrology
  • Climate change

Contacts

Related content and appearances

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Insight

EGU 2026: Fathom present event set generation with AI

A group photo of the Fathom team outside the EGU26 conference hall in Vienna
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Post

State flood model certified by the Florida Loss Commission

Aon Florida Loss Commission
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Research Paper

A 30 m global flood inundation model for any climate scenario

Global Flood Map research paper graph - Average annual flood over time diagram
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Research Paper

Caravan – A global community dataset for large-sample hydrology

Caravan dataset research
Watch the CAMELS to Caravan webinar on Youtube
Webinar

From CAMELS to Caravan: Community datasets for catchment hydrology: webinar

Contact Nans