The 2026 Annual Meeting of the Japan Geoscience Union (JpGU) will be held as a joint meeting with the American Geophysical Union (AGU) for six days from May 24 to 29, 2026, in Makuhari, Chiba City. This conference brings together researchers, engineers, educators, science communicators, students from all fields of Earth and planetary sciences and related disciplines worldwide together with the interested public members. It serves as a forum for sharing research findings from fundamental Earth and planetary science studies to research addressing global environmental issues and the relationship between human society and Earth and planetary sciences, and for fostering dialogue toward multidisciplinary collaboration. Previous JpGU-AGU joint meetings were held in 2017 and 2020. These conferences served as platforms to strengthen collaboration between participants from around the world and those conducting research primarily in Japan, while also providing excellent opportunities to initiate new collaboration. To build a future where human society can be sustainable, and where future generations can thrive in an environment richer than ever before, we must not only deepen our research but also foster mutual understanding, share challenges, and construct a vision for the future through intensive communication with local communities and citizens. We hope the JpGU-AGU Joint Meeting will provide new insights, contribute to the further advancement of Earth and planetary sciences and related fields, and offer an invaluable opportunity for learning and growth for all participants. We look forward to your active participation in the JpGU-AGU Joint Meeting 2026.

JpGU-AGU Joint Meeting 2026 Program Committee Co-Chairs

Madhusoodhan Satish-Kumar（Niigata University)

Carol Finn（USGS)

The JpGU-AGU Joint Meeting 2026, to be held at the Makuhari Messe in Chiba Prefecture, Japan, comes after a longer interval than usual due to the pandemic. We are now fully prepared to welcome you to Japan with renewed enthusiasm and strength.

With the call for sessions opening on September 17, 2025, we are excited about the opportunities this Joint Meeting will provide. The challenges we face in the scientific world are more pressing than ever, making this meeting especially significant for Earth scientists to come together and address the urgent needs of our time.

The Joint Meeting 2026 will feature unique Plenary Lectures, showcasing not only the scientific progress achieved over the past decade but also highlighting the societal and humanitarian imperatives that arise in a rapidly changing world of science and technology.

We invite you to propose sessions that spark such discussions, advance our science, and communicate clearly to society where we stand. Please note that the maximum number of conveners has been increased to six, providing greater flexibility to incorporate diversity of career stage (from students to late career), gender, geography, and scientific discipline in selecting co-conveners. In particular, we encourage students and early- to mid-career scientists to develop innovative and “out-of-the-box” proposals.

We hope that the new scientific knowledge and discoveries presented at the Joint Meeting will contribute to solving the challenges before us. Let us move forward together under the theme of the JpGU-AGU Joint Meeting 2026: “Transformative Science for Life & Earth.”

We look forward to welcoming you to Makuhari next May.

Meeting Outline

Name of the meeting	JpGU-AGU Joint Meeting 2026
Dates	Sun. 24 - Fri. 29 MAY 2026 *6 days
Meeting format	Hybrid* (On-site and online ) See HERE for details on the presentation format.
On-site venue	MAKUHARI MESSE, Chiba
Meeting theme	Transformative Science for Life & Earth
Co-Host	Japan Geoscience Union (JpGU) American Geophysical Union (AGU)
Contact	Please use the Contact Form for all inquiries about the Meeting.

*Oral presentations will be given live both online via Zoom and on-site at the local venue. In addition, on-site poster presentations (without online webcast) will also be held.

Major Changes and Notifications

・At JpGU-AGU 2026, all sessions are regarded as JpGU-AGU joint sessions.

・English is the main language of the JpGU-AGU Joint Meeting 2026. However, some sessions, such as Public Sessions will be convened in Japanese.

・For J sessions, all text on slides, posters must include English. (Japanese may be accompanied.)

・The on-site poster core time (PM3) will be shortened by 15 minutes and will end at 19:00.

・Plenary talks will be held during lunchtime from Monday to Friday.

Key Dates

2025
Wed. 17 SEPT	Call for Session proposals opens (14:00 JST)
Wed. 15 OCT	Call for Session proposals closes (17:00 JST)
Wed. 26 NOV	Sessions list release
Wed. 10 DEC	Session schedule-at-a-glance release
2026
Thu. 15 JAN	Call for abstract submission starts (14:00 JST)
Thu. 05 FEB	Early abstract submission deadline (23:59 JST)
Tue. 17 FEB	Final abstract submission deadline (17:00 JST)
Thu. 05 MAR	Registration opens
Thu. 26 MAR	Notification of abstract acceptance
Fri. 27 MAR	Scientific program release
Thu. 16 APR	Presenter registration deadline
Fri. 15 MAY	Abstract PDF release
Sun. 24 - Fri. 29 MAY JpGU-AGU Joint Meeting 2026 (in hybrid format)

* All dates and deadlines are in Japan Standard Time (JST).

Session Hours

AM1	9:00-10:30
AM2	10:45-12:15
Lunchtime	12:15-13:45
PM1	13:45-15:15
PM2	15:30-17:00
PM3	17:15-19:00

*Oral sessions will be held during AM1, AM2, PM1, and PM2 time slots.
*PM3 is the on-site poster session hour (core time).
*Plenary talks will be held every day during lunchtime from Monday to Friday.

To Attend JpGU-AGU 2026

・Anyone who has a JpGU ID can register for the meeting.
▶JpGU ID Types & How to obtain a JpGU ID

・The meeting registration fee is different depending on the ID category. Make sure you understand this fee structure as below before registration.
▶Registration Fee
*It is not possible to change the category of ID once it has been used for session proposals or abstract submissions nor to obtain dual IDs.
*Details on how to participate in the meeting will be announced in January.

To Present at JpGU-AGU 2026

・Anyone who has a JpGU ID can submit one or more abstracts for presentation at JpGU-AGU 2026 as below.
▶JpGU ID Category & How to obtain a JpGU ID

・To be approved as formally presented, the presenter must register for the meeting with the same JpGU ID it was used to submit an abstract in order to make your oral presentation if oral format is assigned, or upload presentation materials for poster presentations by accessing the meeting participation portal "Confit."

・The meeting registration fee is different depending on the ID category.
▶Registration Fee
It is not possible to change the type of ID once it has been used for abstract submissions nor to obtain multiple IDs.

If you submit your abstract using a Meeting participation ID (non-member ID), you will need to register for the meeting with the same ID.
The difference of the meeting registration fee between regular members and Meeting participation ID is expected to be more than 10,000 yen, with no discount for the latter; furthermore, once your abstract submission has been made with the Meeting participation ID, you cannot change your status at the time of meeting registration.
JpGU system is unable to integrate information if associated with multiple IDs for a single person. If you register with a different ID, you will not be able to present your abstract and/or upload your presentation materials on the system.

Please obtain a JpGU member ID and use it to submit your abstract if you would like to attend the meeting with a member discount.

・Annual membership dues should be paid before submitting an abstract if you are a JpGU Member.
・Please refer to the Regulations on Abstract Submission before submitting your abstract(s).

Presentation Format

Two formats are available for presentations: oral and poster.

JpGU accepts either orals-and-posters or posters-only session.
Some sessions will be posters-only sessions.

Presentation formats are assigned by session conveners. Oral presentations cannot be requested, however posters may be requested and should be given priority.
If you would like to present a poster, please select the format as "poster" when submitting your abstract.

Oral presentations

・Oral presentations will be given live on-site or online via Zoom. Also, pre-recorded presentation videos can be played and viewed during the session.

・Presenters are free to choose to give their presentations either on-site or online.

・Even if all the presentations are online, they will be broadcast to the on-site local venue.

・In general, the duration is fixed at 15 minutes/talk. This includes discussion and changeover time to the next presenter.

Poster presentations

・All poster presenters are required to upload their poster materials to each presenter's space on the meeting participation site "Confit." Posters may be the same as those displayed on-site, and may be used for question-and-answer sessions using the comment function of Confit.

・On-site poster presentation is optional. The presenters who wish to present on-site may display their posters in the designated area and give a presentation. The Posters area can be used all day including outside the core time.

Session Language

The main language of the JpGU-AGU Meeting is English.
Sessions with clear reasons to be convened in Japanese, such as Public Sessions, will be held as Japanese (J) sessions.
The session language for each session can be confirmed by the language code indicated in the session title.

Session Language Code	Text in Slides and Posters	Verbal communication (Oral presentations and Q&As)
E	English	English
J	Must include English. (Japanese text may be accompanied.)	English or Japanese (presenter's choice)

*The above language classifications are intended to facilitate smooth communication among participants from diverse countries. Beyond these points, participants whose native language is not English are asked to communicate in English, while those whose native language is English are encouraged to use clear and plain English. By doing so, we can promote mutual understanding and ask for your cooperation in creating a better environment for communication.

Fee Table

Annual Membership Dues

*Consumption tax is not charged.

Regular (Including K-12 teachers and JpGU senior members)	2,000 JPY
Graduate Student	1,000 JPY
Up to Undergraduate Student	0 JPY (Free of charge)

Abstract Submission Fee

There are two types of submission fees: early-bird submission and regular submission.
The fee amounts will be announced at the start of the submission period.

About Registration Fee

・The registration fee will be the same for both on-site and online registrations. (There is no one-day ticket.)

・The meeting registration fee is different depending on your JpGU ID category. (See the figure below.)

・Registration is scheduled to open on Thursday, 6 March.

【Image of Expenses for Participation per ID 】

Registration fee

*The regisstration fees will be announced at the time of submission.
*Discount rates apply also for AGU, AOGS and EGU members.
*Nonmember rates (no discount) apply for Meeting Participant ID (Nonmember ID) holders.

About Payment

Payment Method

The only method accepted for payments is by credit card on the online system.

*After the credit card payment is settled, individuals may generate a receipt from their members page and use it to claim the reimbursement for each expense from your relevant institution.
Please note that the receipt issued on the system is the official receipt. JpGU does not send the original copies by mail or email.

Acceptable Credit Card

The acceptable brands are VISA，MasterCard，JCB，AMERICAN EXPRESS and Diners Club.
*Debit cards are not accepted.

Cancellation Policy

Membership annual dues, abstract submission fee and registration fee
These are all NON-REFUNDABLE processing fees.
*Abstract fee is not refundable irrespective of the approval and/or withdrawal once paid.

Payment Claims

If you experience any difficulties with payments by credit card, please contact us using the Payment Support Form BEFORE the deadline of each payment.
Notes:
Please note that we do not accept contacts by emails.
Please contact us as soon as possible if you experience any technical issues.
Late payments are accepted if the trouble is informed before the deadline.

International attendees are advised to be careful with the time difference between Japan time and their local time.

Possible Cause of Trouble

Please check the most common causes listed below before sending in a question.
【Technical issues】
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(Correct) 0000000000000000 / (Incorrect) 0000-0000-0000-0000
(Correct) 0369142080 / (Incorrect) 03-6914-2080

-Invisible input: please make sure that there is no space in the input.
(Correct) 0000　/ (Incorrect) □0000，0000□ *□ indicates space

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Contacts by emails are not accepted.
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Alternative to Credit Card Use

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About Receipt

The receipt is downloadable from your JpGU account. We do not mail receipts to individual addresses.

Please click HERE for details on receipt issuance.
If you have any questions about INVOICE System (qualifies Invoice), please contact us using the Payment Support Form .