24hrs Global Heat Flow Day

The 24-hour Global Heat Flow Day is an annual event organized by the International Heat Flow Commission (IHFC) to foster scientific exchange among geoscientists, with a particular focus on heat flow research. This event features a continuous 24-hour virtual live session, allowing participants worldwide to discuss current developments, explore new heat flow data, and receive guidance on adapting their research data to meet the requirements of the Global Heat Flow Database (GHFDB). By providing a collaborative platform, the initiative aims to enhance the quality, accessibility, and reliability of heat flow data—an essential resource for geoscientific research.

The IHFC invites all researchers to participate in Global Heat Flow Day, emphasizing that collective contributions strengthen the quality and impact of global heat flow data—a critical resource for geoscientists worldwide. For more information or to get involved, contact us.

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Global Heat Flow Day 2027

On 25th February 2027, the 6th 24-hour Global Heat Flow Day will take place. We invite you to participate next year by giving a 20 to 30-minute presentation on a heat-flow-related topic.

Global Heat Flow Day 2026

On 26th February 2026, the 5th 24-hour Global Heat Flow Day took place. 135 participants attended the 25 talks.

12:00 AM UTC

Yibo Wang

Lithospheric Thermal Structure of Continental China and Its Tectonic Implications

Institute of Geology and Geophysics, Chinese Academy of Sciences

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02:00 AM UTC

Shaowen Liu

Thermal structure of the lithosphere

Nanjing University

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03:00 AM UTC

Helmut Duerrast

From hot springs to geothermal energy – Thailand’s non-volcanic geothermal resoruces

Prince of Songkla University

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04:00 AM UTC

Will Gosnold

Heat Flow, Climate Change, and Geothermal Energy: Linked in The Subsurface

University of North Dakota

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05:00 AM UTC

Belay G Mino

Heat Flow Modelling in the Onshore Gippsland Basin

The University of Melbourne

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06:00 AM UTC

Graeme Beardsmore

Heat flow for mineral exploration

The University of Melbourne

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08:00 AM UTC

Anastasiya Gornostaeva, Nelly Fakaeva

Underground Urban Heat Island in Yekaterinburg, Russia / Thermal properties of snow cover in Yekaterinburg, Russia

Institute of Geophysics of the Urals Branch of Russian Academy of Sciences

Watch video Gornostaeva slides (PDF) Fakaeva slides (PDF)

09:00 AM UTC

Sven Fuchs

Status of the Global Heat Flow Database 2026

GFZ Helmholtz Centre for Geoscience

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10:00 AM UTC

Juan Pablo Villalba Ulberich

Unveiling Geothermal Resources: An Analysis of Heat Flow Anomalies in the NW Argentine Andean Foreland Using Oil & Gas Well data

INECOA – CONICET, Argentina

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11:00 AM UTC

Florian Neumann

Marine Heat flow Techniques

MARUM – Center for Marine Environmental Sciences, University of Bremen

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12:00 PM UTC

Lev Eppelbaum

Near-surface thermal prospecting in archaeology

Tel Aviv University

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01:00 PM UTC

Kim Lemke & György Hetényi

Thermal variability of the lower continental crust based on project DIVE and modelling

University of Lausanne

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02:00 PM UTC

Suze Guimaraes

Assessment of Heat Flow in Shallow Wells: Methods and Results

Federal Rural University of Rio de Janeiro

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03:00 PM UTC

Jeffrey Poort

BSR-derived heat flow versus marine probe heat flow

Sorbonne University

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04:00 PM UTC

Yuriy Maystrenko

Major crustal and sub-crustal heat sources in Norway: tectonic and climatic modulations of their thermal effect

Norway Geological Survey

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05:00 PM UTC

Elif Balkan-Pazvantoğlu

Effect of thermal refraction on Heat Flow

Dokuz Eylül University

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07:00 PM UTC

J. Camilo Matiz-León

The role of geothermal resources in the energy transition in Colombia and South America

AGEOCOL (Colombian Geothermal Association) - National University of Colombia

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08:00 PM UTC

Harold Buitrago

Pitfalls of gradient-based thermal workflows in geothermal studies

CICESE

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10:00 PM UTC

Yuri Popov

New monography: New methods of experimental geothermics and their application results

Skolkovo Institute, Moscow

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11:00 PM UTC

Raquel Negrete-Aranda

Marine Heat Flow Applications in Earth Sciences

CICESE

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Global Heat Flow Day 2025

The 4th Global Heat Flow Day took place on Tuesday, Feb 25, 2025 (1 am GMT until 9 pm GMT). Eight presentations were given, attended by 133 visitors.

1 am GMT

Graeme Beardsmore

Thermal conductivity measurement techniques

University of Melbourne, Australia

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5 am GMT

Tobias Staal

Subglacial heat and ice sheet stability

University of Tasmania, Australia

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7 am GMT

Shaopeng Huang

AI assisted heat-flow study

Shenzhen University, Shenzhen, China

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12 pm GMT

Gianluca Gola

Heat-flow data in Italy: data review and new determinations

National Research Council of Italy

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2 pm GMT

Sven Fuchs

The IHFC heat flow fellowships: purpose procedures possibilities

GFZ Helmholtz Centre for Geosciences

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4 pm GMT

Will Gosnold

Heat flow from uncorrected bottom-hole temperatures

University of North Dakota

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6 pm GMT

Elif Balkan-Pazvantoğlu

Temperature measurements techniques

Dokuz Eylül University, Türkiye

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8 pm GMT

Robert Harris (Negrete, Poort, Neumann)

Marine probe heat-flow measurements anno 2025

Oregon State University, USA

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Global Heat Flow Day 2024

Global Heat Flow Day 2024

IHFC 1

The data structure of the IHFC Global Heat Flow Database

Global Heat Flow Data Assessment Team

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Global Heat Flow Day 2024

IHFC 2

Quality standards for the IHFC Global Heat Flow Database

Global Heat Flow Data Assessment Team

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