Thank you for your interest in the EGU General Assembly 2023. Please follow the guidelines on this page for submission of your abstract. The abstract submission deadline is Tuesday, 10 January 2023, 13:00 CET. Please note that an abstract processing charge (APC) of €50 gross per abstract is levied. All first authors of abstracts submitted to the EGU23 have to be an EGU member for the calendar year 2023 or honorary/life member. The membership can be acquired upon abstract submission.

Abstract submission recipe

• Use a text editor of your choice to compile your abstract: title, author(s), affiliation(s) of author(s), and abstract text. Your abstract body should have 100–500 words.
• Browse through the session programme and select the session most relevant to you.
• Use the abstract submission link at the chosen session. Please keep in mind that submission of the same abstract to more than one session is not allowed. Duplicates will be rejected.
• You will be asked to log in to the Copernicus Office Meeting Organizer. Use the same account data you have used so far for any conference or journal business at Copernicus or EGU. Only first-timers can create a new account.
• Please note that only 2023 EGU members, including honorary/life members, can submit an abstract as first author to the General Assembly and that co-authors submitting the abstract cannot acquire membership for first authors. Renew your EGU membership directly through the abstract submission form or beforehand at: https://www.egu.eu/membership/. In the latter case, please ensure to select the 2023 membership and use the same user account for your membership application as for your abstract submission. EGU members get a substantial reduction on the registration fee for the General Assembly.
• Fill in the submission information of title, author(s), and affiliation(s) of author(s).
• ORCID numbers will be linked to authors that have their ORCID included in the personal data section of their Copernicus account.
• For your abstract body, the submission form provides you with an HTML editor.
• Depending on the session, your abstract can be presented as an oral, poster, or PICO presentation. Therefore, you will be asked to indicate your presentation preference. For PICO sessions, the presentation preference is already set to PICO presentation.
• Indicate whether you plan to present your abstract on-site in Vienna or virtually.
• Accept the licence & copyright agreement as well as the EGU General Assembly rules of conduct and proceed to the abstract preview.
• In all cases, please indicate your invoice details for the abstract processing charges (APCs, see below). If you are the first author of the abstract and you have not yet applied for an EGU membership, the abstract submission form requires you to pay the membership in addition to the APC. You will then receive two separate invoices for the APC and the membership fee.
• Submit your abstract. A confirmation message including your abstract number will be displayed and you will receive a confirmation email providing your abstract number. Should you not receive the abstract submission confirmation email within 24 hours, please check your spam folder first and then contact us at egu23@copernicus.org.

In case any questions arise, please do not hesitate to contact us at egu23@copernicus.org.

Abstract guidelines and rules

Abstract text

• The abstract body should be short (100–500 words), clear, concise, and written in English with correct spelling and good sentence structure.
• Mathematical symbols and equations can be typed in or embedded as images.
• Abstracts should be carefully compiled and thoroughly checked, in particular with regard to the list of authors, before submission in order to avoid last-minute changes.

Responsibilities

• The submission of an abstract carries with it the obligation that it is actually presented at the meeting by the author or, at least, by one of the co-authors. If this is not possible, please withdraw your abstract as early as possible. Without an early withdrawal, abstracts not presented at the conference are identified as no-shows. Such contributions are clearly marked in the online programme and listed as no-shows. The corresponding HTML/PDF abstract will no longer be available.
• By submitting an abstract, authors accept the licence & copyright agreement and agree to follow the EGU General Assembly rules of conduct.
• Submission of the same abstract to more than one session is not allowed. Duplicates identified by the programme committee will be rejected.
• If you have submitted your abstract to the wrong session, and notice before the abstract submission deadline, do not withdraw your abstract but contact us at egu23@copernicus.org instead. The Copernicus staff will take care of relocating your abstract to the correct session. Paid abstract processing charges for withdrawn abstracts because of an incorrect session will not be refunded.
• The content of EGU General Assembly abstracts is the responsibility of their authors. EGU reserves the right to reject abstracts that are not written in English, are out of the scope of the EGU General Assembly, do not meet basic standards of scientific quality, or do not adhere to conventional standards of civil discourse and common decency as laid out in the EGU Code of Conduct.
• The official language of the EGU General Assembly is English. Simultaneous interpretation is not provided. It is therefore expected that authors will be able to present their research more or less fluently in the English language.

One-abstract rule

Authors are allowed as first author to submit either one regular abstract plus one abstract solicited by a convener, or two solicited abstracts. A second regular abstract can be submitted to sessions led by the EOS programme group (the maximum number of abstracts, including solicited abstracts, remains two). Possible submissions for first authors are the following:

• 1 regular + 1 solicited abstract;
• or 2 solicited abstracts;
• or 1 regular or solicited abstract + 1 regular or solicited abstract to EOS-led sessions.

Since the system limits abstract submissions to one, you will need to provide a transaction number (TAN) when submitting your second abstract (unless the second abstract is submitted to EOS-led sessions). It is important to obtain your TAN from the convener of session X of your solicited abstract, even if your solicited abstract was your first submission to session X (the system does not ask for a TAN) and your second submission to session Y is your regular abstract whereby the system asks you for a TAN (second submission). In such a case, you will submit your second abstract to session Y using your TAN from session X.

EGU membership required

Only 2023 EGU members, including honorary/life members, will be able to submit an abstract as first author. Please renew your EGU membership directly through the abstract submission form or in advance of the abstract submission through the EGU membership form. In the latter case, please ensure to use the same user account for your membership application as for your abstract submission. EGU members get a substantial reduction on the registration fee to the General Assembly. Should you submit an abstract as co-author and your first author has not yet become a 2023 EGU member, you will not be able to acquire the necessary membership for your colleague. In such a case, they would have to become an EGU member themselves before you can proceed with the abstract submission.

Abstract processing charges (APCs)

• An APC of €50 gross must be paid for each abstract submission. Any late abstracts uploaded by conveners after 12 January 2023 but by their strict upload deadline of 20 January 2023, 13:00 CET, will receive a higher APC of €95 gross.
• APCs can only be paid by credit card or PayPal. You will be asked to provide your invoice details since a proper invoice and payment receipt will be sent by email. Please note that most probably, this invoice is meant to be an institutional invoice addressed to your institute rather than to you personally. The submission form therefore has institutional invoice as default, but this could be changed to personal invoice if applicable. If your institution is based in an EU country, you are requested to provide a VAT identification number. This VAT ID can normally be found in the imprint of your institution's website. Please carefully check your provided invoice address to avoid later changes.
• Abstracts are only processed and available for session organization by conveners after the payment is completed. Please note that this is a processing charge and not a publishing fee.
• APCs are not refundable in case of an abstract withdrawal (including in the case of submission to a wrong session), rejection, or double submission. If the session you submitted your abstract to was withdrawn, your abstract would still be eligible for a review in other sessions and a session withdrawal is therefore not a reason for an APC refund. The charges collected cover the costs to process the abstracts, whether or not the abstract is presented at the meeting.
• Please remember that abstract processing charges are also not eligible for a refund in case of abstract acceptance in a different session other than the one the author submitted the abstract to.
• The APC does not register you for the EGU General Assembly 2023. Separate registration fees apply.
• Solicited speakers do not receive discounted APCs or registration fees.

Late abstract submissions

Abstracts sent to conveners to be submitted on your behalf after the regular abstract submission deadline need to reach conveners well in advance of their strict upload deadline of 20 January 2023, 13:00 CET. These late submissions require final approval by the EGU Programme Committee and will be charged an APC of €95 gross. Please make sure that the first author has a paid EGU membership 2023 before you send the abstract to the conveners. It is important to provide the following information to the conveners:

• Your abstract title;
• All authors, including full first names (no initials) and last names;
• All email addresses of the authors (i.e., email address of each individual author);
• All affiliations of the authors (i.e., university and/or institute, country);
• Your abstract text;
• Your presentation preference;
• Whether you will present your abstract on site in Vienna or virtually;
• The billing address for the invoice for the abstract processing charges.

As soon as the convener has uploaded your late abstract, you will receive further instructions regarding the payment by email.