AGU - American Geophysical Union

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About AGU
Career Development
Honors & Funding
Meetings & Events
Publications & News
Policy & Outreach

Who We Are

AGU Membership Value

Empower your future today!

Ethics, Diversity & Inclusive Science

Promoting an inclusive scientific culture

Membership Directory

Find members by section, region or expertise

Programs & Initiatives

Advance your career and connect with peers

Find Your Community

Connect by science, interest and identity

AGU Net Zero Headquarters

Visit AGU’s award-winning HQ in D.C.

Leadership & Governance

Volunteers shaping AGU and the future of science

AGU Sections

Connect with colleagues in your discipline

College of Fellows

Distinguished Earth and space science leaders

Get a full year of AGU Member value. Renew your membership now!

Students

Student Programs

Launch your career with a supportive community

Leadership Opportunities

Sign up for leadership and volunteer updates

Awards & Funding

Apply for scholarships and fellowships

Educators

University & Faculty Programs

Network and share best practices in education

K-12

Explore Bright STaRS program and travel grants

Career Advancement

Career Center

Find or post job listings; search career resources

Programs by Career Stage

Programs and support for every career level

Fellowships & Cohort Programs

Build in-depth skills alongside peers

AGU Circles

Get support and new perspectives with peer mentoring

AGU Grant Finder

Search thousands of funding opportunities

AGU Honors

Union Medals, Awards & Prizes

Recognizing top achievements in science

Union Fellows Program

Recognizing excellence in research

Section Awards & Lectures

Celebrating section-specific achievements

Student Awards

Rewarding scientific excellence in students

Science Policy & Communication Awards

Awarding excellence in science outreach

View 2025 honorees

AGU Funding

Scholarships

Investing in science’s future leaders

Travel Grants

Support travel for AGU meetings

Research Grants

Funding new discoveries and breakthroughs

AGU Meetings

AGU Annual Meeting

Join AGU26 in San Francisco this December

Chapmans

Specialized meetings for science insights

Ocean Sciences

Thank you for joining us in Glasgow!

AbSciCon

Uncover new insights in astrobiology

Exhibits and Sponsorship Opportunities

Elevate your visibility in the geosciences

See You at our Next Chapman Meeting!

Resources

Meetings & Event Calendar

Track key dates for AGU events

Book the AGU Conference Center

Host your event at AGU Headquarters

Webinars

Online sessions for science insights

Publications

Journals

Explore 24 high-impact, peer-reviewed journals

Authors

Resources and policies for authors

Books

Read and publish AGU textbooks and manuals

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Resources and policies for editors

Special Collections

Premier collections highlighting key topics

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Resources and policies for reviewers

Publish with AGU

Open Science

Open Access

Explore funding for open access publishing

Inclusive Publishing

Fostering diversity and transparency in publishing

ESS Open Archive

Search Earth and space science preprints

Data Leadership

Explore AGU data guidelines for researchers

Science News & Updates

Eos

AGU’s award-winning science news magazine

Stay in the Know

Sign up for AGU updates and news

Press Releases & Media Resources

Visit AGU's newsroom for science updates

From the Prow

Read the latest message from AGU leadership

Science Policy

Science Policy Programs

Get involved in AGU’s policy initiatives

Science Policy Resources

Tools to advocate effectively for science

Grassroots Action

Mobilize local voices for policy impact

Outreach

Science Communication

Develop skills to share your science

Community Science

Connect science to local community priorities

U.S. Government Outreach

Learn to navigate U.S. science policy

Global Outreach

Collaborate globally for sustainable solutions

AGU Thought Leadership

Open Science

Expanding participation and access to science

Climate & Sustainability

Science for a thriving, sustainable future

Ethical, Diverse & Just Science

Championing ethics and equity in science

Inclusive Collaboration

Fostering an inclusive science culture

AGU is fighting for science.

Keep up with AGU’s latest news to be the first to know when new releases and updates go live.

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AGU Members
Malcolm Sambridge

Member Since 1989

Malcolm Sambridge

Professor Emeritus, Australian National University

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Professional Experience

Australian National University

Professor Emeritus

1992 - Present

Education

Australian National University

Doctorate

1988

Malcolm's AGU Research

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Publications
Abstracts

Bayesian Inversion with Competing Assumptions

ADVANCING THEORETICAL AND COMPUTATIONAL SEISMOLOGY II ORAL

seismology | 17 december 2025

Constraining the Pressure and Temperature of Intra-Plate Mantle Melts: A Modelling-Informed Inversion

MULTIDISCIPLINARY PERSPECTIVES ON OCEAN ISLAND AND SEAMOUNT PROCESSES FROM ABOVE THE TOP TO BELOW THE BOTTOM I ORAL

volcanology, geochemistry and petrology | 17 december 2025

CoFI - A Common Framework for Inference.

ADVANCING THEORETICAL AND COMPUTATIONAL SEISMOLOGY III POSTER

seismology | 17 december 2025

Trans‐Conceptual Sampling: Bayesian Inference With Competing Assumptions

JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH

Data-driven Bayesian transdimensional methodology to estimate 2D b-value variations

ADVANCES IN THEORETICAL AND COMPUTATIONAL SEISMOLOGY III ORAL

seismology | 13 december 2024

Lowermost Mantle Shear‐Velocity Structure From Hierarchical Trans‐Dimensional Bayesian Tomography

JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH

14 september 2021

Evidence for the Innermost Inner Core: Robust Parameter Search for Radially Varying Anisotropy Using the Neighborhood Algorithm

JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH

22 january 2021

Small-scale heterogeneity in the lowermost mantle beneath Alaska and northern Pacific revealed from shear-wave triplications

STUDENT ENGAGEMENT TO ENHANCE DEVELOPMENT: OUTSTANDING STUDENT PRESENTATION AWARD WINNERS FROM FALL MEETING 2019 III ELIGHTNING

union | 10 december 2020

Volunteer Experience

2024 - 2026

Member

Seismology Gutenberg Lecture Committee

2019 - 2020

Member

Seismology Fellows Committee

Honors & Awards

Beno Gutenberg Lecture

Received December 2020

Lecture Title A Biased Tour of Geophysical Inversion

Lecture Title A Biased Tour of Geophysical Inversion

Video

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Union Fellow

Received January 2010