Global leader in flood and climate risk

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Global Flood Cat and Climate Dynamics thumbnails on a flood map background
Launch event

Quantifying future flood risk: Inside Global Flood Cat | Future, July 15

Flood map and Fathom and ASCE logos for webinar
Partner event

Closing the gap in US flood map coverage – Webinar with ASCE

US map of states with flood risk indicators
New tool

US Flood Risk Index: Reveal hidden flood risk. Prevent avoidable losses.

FathomDEM AI terrain tile
Research

FathomDEM: an improved global terrain map using a hybrid vision transformer model

Earth diagram with a line graph overlaid
Report

The climate challenge for boards: Perspectives from the financial sector

Black background with blue stylised grid map of the world. Global Flood Cat image from Fathom
New product

Introducing Global Flood Cat—The first truly global catastrophe model to cover all major flood perils.

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

A 30 m global flood inundation model for any climate scenario

Fathom - The role of data report
Report

The role of data: Key to understanding climate risk

Aerial view of flooded houses next to a river
White paper

Navigating global flood risk in a non-stationary world – A primer for actuaries

Product briefing

Metadata — Fathom’s first-of-its-kind assessment of flood risk data certainty

Fathom's Global Flood Map - Pakistan flood simulation
Upcoming webinar

Climate resilience in fast growth markets and the power of data – Sept 19

Swiss Re HQ
Updates

Swiss Re acquires Fathom, global leader in water risk intelligence

Global Terrain Data - FABDEM+
New product

Introducing FABDEM+ – the new standard for a globally consistent and accurate digital elevation model

US Flood Map
New product

New US Flood Map – The most complete and technologically advanced flood map for the United States

Risk scores
New Product

Fathom Risk Scores – Powerful flood risk metrics for any global location, under any climate scenario

Webinar

Flood risk as a measure of asset value, panel webinar.

Products

Climate change is
happening now

Fathom’s cutting-edge products support you to understand what impact this has on your flood risk both now and in the future. Our solutions are well established within the industry and set a new benchmark in global flood mapping.

Catastrophe modeling
Product
Flood hazard data & maps
Product
Global Terrain Data
Product
Sectors

Fathom has been providing high quality flood risk intelligence across a wide range of sectors since 2013

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Research papers

Academic scrutiny of our products gives our clients the reassurance that they are consuming trusted and transparent data from the forefront of science

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New Research paper

Global River Topology (GRIT): A bifurcating river hydrography

  • Wortmann, M.,
  • Slater, L.,
  • Hawker, L.,
  • Liu, Y.,
  • Neal, J.,
  • Zhang, B.,
  • Schwenk, J.,
  • Allen, G.,
  • Ashworth, P.,
  • Boothroyd, R.,
  • Cloke,, H.,
  • Delorme, P.,
  • Gebrechorkos, S.,
  • Griffith, H.,
  • Leyland, J.,
  • McLelland, S.,
  • Nicholas, A.,
  • Sambrook-Smith, G.,
  • Vahidi, E.,
  • Parsons, D.,
  • Darby, S.

Researchers have created the first branching global river network that represents bifurcations, multi-threaded channels and canals.

05/15/2025
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FathomDEM AI tiles terrain
Research paper

FathomDEM Global Terrain Map

A new research paper published in Environmental Research Letters outlines the creation of FathomDEM, a new global 30 m DEM produced using a novel machine-learning approach.

02/11/2025
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Research paper

Flooding is not like filling a bath

New commentary in Earth’s Future journal explains why the bathtub method should not be used in flood modeling.

12/05/2024
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Artist's impression of SWOT satellite in orbit
Research paper

SWOT data will reshape our understanding of the global terrestrial water cycle

Just over a year after the SWOT satellite started sending its observation data to Earth, some of the scientists involved discuss how we can make the most of this unique resource.

12/03/2024
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Research paper

Exposure to flooding in Small Island Developing States (SIDS)

A new study into the population exposed to flood risk across the Small Island Developing States (SIDS).

11/08/2024
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Global mean surface air temperature (GSAT) observations and projections.
Research paper

Emerging signals of climate change from the equator to the poles: new insights into a warming world

  • Collins, M.,
  • Beverley, J.,
  • Bracegirdle, T.,
  • Catto, J.,
  • McCrystall, M.,
  • Dittus, A.,
  • Freychet, N.,
  • Grist, J.,
  • Hegerl, G.,
  • Holland, P.,
  • Holmes, C.,
  • Josey, S.,
  • Joshi, M.,
  • Hawkins, E.,
  • Lo, E.,
  • Lord, N.,
  • Mitchell, D.,
  • Monerie, P.,
  • Priestley, M.,
  • Scaife, A.,
  • Screen, J.,
  • Senior, N.,
  • Sexton1, D.,
  • Shuckburgh, E.,
  • Siegert, S.,
  • Simpson, C.,
  • Stephenson, D.,
  • Sutton, R.,
  • Thompson, V.,
  • Wilcox, L.,
  • Woollings, T.

A group of climate scientists, including Fathom’s Dr Natalie Lord, present the results of recent studies into regional climate change impacts

10/01/2024
Downtown Newark skyline reflection on the banks of the Passaic River.
A satellite in orbit