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

Editors

Resources and policies for editors

Special Collections

Premier collections highlighting key topics

Reviewers

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.

Learn More

AGU Members
Elowyn Yager

Member Since 2006

Elowyn Yager

Professor, University of Idaho

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Elowyn's AGU Research

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Publications
Abstracts

Effects of Discharge and Morphology on Fluvial Sound

EARTH AND SPACE SCIENCE

Estimating Discharge From Undular Hydraulic Jumps: Feasibility Assessment Based on Flume Experiments

WATER RESOURCES RESEARCH

Estimating the Onset of Sediment Motion from Point Clouds and Intergranular Friction

GEOPHYSICAL GRANULAR FLOWS AND SEDIMENT TRANSPORT: BRIDGING GRAIN-SCALE MECHANICS AND CONTINUUM MODELING I POSTER

earth and planetary surface processes | 18 december 2025

Standing Wave Fields in Steep Rivers

FLUVIAL REORGANIZATION: LINKING MECHANICS, MORPHOLOGY, AND BIOLOGICAL IMPACTS ON REACH AND NETWORK SCALE I POSTER

earth and planetary surface processes | 17 december 2025

Investigating the roles of climate, fluvial thresholds and sediment flux in river incision on the Hawaiian Islands

FLUVIAL DYNAMICS AND LANDSCAPE EVOLUTION IN TECTONICALLY ACTIVE MOUNTAINS I ORAL

earth and planetary surface processes | 16 december 2025

Grain to Grain: Comparing Methods for Determining Sediment Size in Coarse-Bedded Streams in Hawaiʻi

FLUVIAL DYNAMICS AND LANDSCAPE EVOLUTION IN TECTONICALLY ACTIVE MOUNTAINS III POSTER

earth and planetary surface processes | 16 december 2025

Remote Sensing of Discharge through Critical Flow Theory: Sensitivity Analysis

REMOTE SENSING OF RIVERS, LAKES, RESERVOIRS, AND WETLANDS III POSTER

hydrology | 15 december 2025

Impact of Boulders and Boulder‐Induced Morphology on Oxic Volume of the Hyporheic Zone of Plane‐Bed Rivers

WATER RESOURCES RESEARCH

Volunteer Experience

2023 - 2025

Member

Earth and Planetary Surface Processes Executive Committee

2023 - 2024

Chair

Earth and Planetary Surface Processes Canvassing Committee

2021 - 2022

Chair

Earth and Planetary Surface Processes Canvassing Committee

Honors & Awards

Marguerite T. Williams Award

Received 2025

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Outstanding Reviewer Award - JGR-Earth Surface

Received 2018

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Outstanding Reviewer Award - JGR-Earth Surface

Received 2017

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