Cryosphere Fellows Selection Committee

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About AGU
Career Development
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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

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Join AGU’s team to advance science

Connect with the global AGU community.

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Launch your career with a supportive community

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Programs and support for every career level

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Build in-depth skills alongside peers

Read your OSPA presentation feedback

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 past recipients

AGU Funding

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Investing in science’s future leaders

Travel Grants

Support travel for AGU meetings

Research Grants

Funding new discoveries and breakthroughs

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AGU Annual Meeting

Join AGU25 in New Orleans this December

Chapmans

Specialized meetings for science insights

WaterSciCon

Innovations in hydrology

Ocean Sciences

Join Ocean experts in Glasgow 2026

AbSciCon

Uncover new insights in astrobiology

Exhibits and Sponsorship Opportunities

Elevate your visibility in the geosciences

Submit a proposal for AGU25

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Track key dates for AGU events

Book the AGU Conference Center

Host your event at AGU Headquarters

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Explore 24 high-impact, peer-reviewed journals

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Publish with AGU

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Explore funding for open access publishing

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Fostering diversity and transparency in publishing

ESS Open Archive

Search Earth and space science preprints

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Explore AGU data guidelines for researchers

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Eos

AGU’s award-winning science news magazine

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Visit AGU's newsroom for science updates

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Read the latest message from AGU leadership

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Cryosphere Fellows Committee

Committee Members

Sarah Esenther

Brown University

Member

01 January 2024 - 31 December 2025

Matthew Siegfried

Colorado School of Mines

Member

01 January 2024 - 31 December 2025