The Japan Geoscience Union (JpGU) is a large organization comprising 51 academic societies related to Earth and Planetary Sciences, as well as over 10,000 individual members. The JpGU 2027 Annual Meeting will be held for six days, from May 23 to 28, 2027, at Makuhari Messe in Chiba City. This conference is a major event in Japan's Earth and Planetary Sciences community. Through scientific presentations, special programs, and exhibitions, it serves as a vital opportunity to advance scholarship in the field and foster exchange across disciplines and among researchers. It also provides an opportunity for academic societies that typically operate independently to gather in one place, hold joint sessions, and chart the future direction of Earth and Planetary Sciences in Japan. It also offers a special occasion for young researchers and students to showcase the results of their daily efforts. We look forward to lively discussions, information exchange, and networking among participants of all ages. We look forward to seeing you all there.

JpGU Meeting 2027 Program Committee Chair

Aki TAKIGAWA（The University of Tokyo)

The JpGU-AGU Joint Meeting 2026, jointly organized by JpGU and AGU, concluded successfully with more than 10,000 participants, 285 sessions, and a record 6,000 presentations. Thanks to your support and cooperation, 76% of the sessions were conducted in English (E-sessions), and 83% of all presentations were given in English. This helped create an environment in which participants from overseas could more easily join the discussions. With the rising cost of international travel, the meeting also provided students with a valuable opportunity to experience an international conference here in Japan. I would like to express my sincere appreciation to everyone who participated in the meeting, and especially to the conveners who organized the sessions.

The JpGU Meeting 2027 will again be held in a hybrid format, combining on-site and online participation. To ensure that JpGU continues to provide a forum where participants from Japan and abroad can come together, engage in scientific discussions across disciplinary and national boundaries, and build new connections, we encourage conveners to continue considering organizing their sessions as E-sessions.

This year, we are also asking conveners to review their session scopes. Session scopes serve as an important gateway for participants from a wide range of backgrounds to discover and join new fields and sessions, and they also provide essential information for program planning. We therefore ask conveners to take this opportunity to ensure that each session scope clearly communicates the aims and intended audience of the session and distinguishes it from other sessions.

The meeting is made possible by the conveners who organize sessions, the researchers who present their work, and everyone who takes part in the discussions. Based on the sessions proposed by our community, the Program Committee will work to develop a program that creates opportunities for new research and interaction. We look forward to receiving a wide range of session proposals and many abstract submissions, and to welcoming many participants to the JpGU Meeting 2027.

Meeting Outline

Name of the meeting	Japan Geoscience Union Meeting 2027 (JpGU 2027)
Dates	Sun. 23 - Fri. 28 MAY 2027 *6 days
Meeting format	Hybrid* (On-site and online ) See HERE for details on the presentation format.
On-site venue	MAKUHARI MESSE, Chiba, Japan
Host	Japan Geoscience Union (JpGU)
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

・For sessions with five or more timeslots (blocks), the on-site poster core time will be divided into two days. Each presentation will be assigned on one of the two days.

・At the Joint Meeting, all sessions were designated as E-sessions in principle. This requirement will not apply to the JpGU Meeting 2027. To help the JpGU Meeting remain a forum for scientific discussion and new connections across disciplines and national borders, we nevertheless encourage session conveners to consider organizing their sessions as E-sessions again this time.

・Beginning in early 2027, specifically when abstract submissions open, the member, submission, and public/participant sites are scheduled to begin operating on new systems.

Click here for details.

Key Dates

2026
Thu. 01 OCT	Call for Session proposals opens (14:00 JST)
Thu. 29 OCT	Call for Session proposals closes (17:00 JST)
Thu. 26 NOV	Sessions list release
Thu. 03 DEC	Session schedule-at-a-glance release
2027
Tue. 12 JAN	Call for abstract submission starts (14:00 JST)
Wed. 03 FEB	Early abstract submission deadline (23:59 JST)
Tue. 16 FEB	Final abstract submission deadline (17:00 JST)
Tue. 30 MAR	Notification of abstract acceptance
Wed. 31 MAR	Scientific program release
Fri. 14 MAY	Abstract PDF release
Sun. 23 - Fri. 28 MAY JpGU Meeting 2027 (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).

To Attend JpGU Meeting

・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 Meeting

・Anyone who has a JpGU ID can submit one or more abstracts for presentation at JpGU Meeting 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 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	English or English-Japanese bilingual text is recommended	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

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.)

・JpGU members can attend the meeting at a discounted rate as part of their registration fee. If you plan to attend the meeting, please consider membership (an annual due applies separately).

・The member discount does not apply to registration using a Meeting Participant ID (Nonmember ID) . The full rate will apply.

・AGU, AOGS and EGU members may attend at the member rate.

*The regisstration fees will be announced at the time of submission.

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.

Can't Use or Don't Have a Credit Card

Under particular circumustances such as the individual does not own a credit card or the card is not valid, bank transfer may be accepted. Please note that additional administrative fee will be charged for this payment method.

Domestic Remmitance	Administrative Fee 2,000 JPY/ transaction (tax included)
Overseas Remmitance	Administrative Fee 4,000 JPY/ transaction (tax included)

Conditions of Bank Transfer

Those who wish to pay by bank transfer must send a request using the Payment Support Form.
Contacts by emails cannot be accepted.
-After reveiving a contact, we will provide our bank account information.
Please note that we do not accept payments in this method without prior notification.

- The comission must be paid by the sender．

-The person using this method must complete the remittance within the designated period.

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.

Related to submissions, if you contact us via thePayment Support Form by the deadline, we can accept your payment after the deadline. However, if payment is not completed by the end of February, all submissions will be canceled.

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】
-Error in the credit card number or telephone number input: the input may contain "-(hyphens)" or a non-numeric characters. Any other symbols such as +(plus) etc. should not be used either.
(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

If an error occurs after all the information is entered correctly, the credit card owner is advised to contact the credit card company.

In case of payment issues, please contact us using the Payment Support Form BEFORE the deadline of the payment.
Contacts by emails are not accepted.
If JpGU does not receive any contact by the payment deadline, the payment will not be processed for any reason.

Alternative to Credit Card Use

Please contact JpGU secretariat office using the Payment Support Form for details.

About Receipt

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

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