Journal cover Journal topic
Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union

Publication policy

Nonlinear Processes in Geophysics (NPG) and its discussion forum Nonlinear Processes in Geophysics Discussions (NPGD) are open access. Open access is the free immediate access to, and unrestricted reuse of, original works of all types by any user. Therefore, all content of NPG and NPGD is distributed under the Creative Commons Attribution 4.0 International License (CC BY 4.0) and authors retain copyright.

Nonlinear Processes in Geophysics and its discussion forum Nonlinear Processes in Geophysics Discussions are issued by Copernicus Publications on behalf of the European Geosciences Union, offering the following:

  • rapid posting of high-quality manuscripts as discussion papers in NPGD (preprints) after an access review by an editor;
  • interactive public discussion (NPGD): immediate posting of referee comments (anonymous or attributed) by at least two independent referees, author comments (on behalf of all authors), and short comments by any registered member of the scientific community (attributed) alongside the discussion paper;
  • permanent archiving and accessibility of discussion papers together with the interactive comments;
  • post-discussion peer-review completion and final acceptance for NPG or rejection;
  • thorough layout and processing of text, figures, tables, and equations (NPG);
  • English language copy-editing (NPG);
  • immediate open-access publication in NPG, financed by moderate article processing charges (please also note the financial support for authors);
  • publication of supplementary material at no extra charge and linkage to assets stored externally (data sets, model code, samples, or videos);
  • DOI (digital object identifier) assignment and article URLs according to the classic citation;
  • distribution of articles and bibliographic metadata to scientific databases and indices;
  • collections of articles resulting from standard peer review as well as special issues with articles supervised by guest editors;
  • article alert service and RSS feeds;
  • long-term preservation by external archives;
  • paper copies printed on demand (NPG).

For further information on the definition and standing of discussion papers, please read the EGU Position Statement on the Status of Discussion Papers Published in EGU Interactive Open Access Journals.

NPG and its discussion forum adhere to high ethical standards which are summarized in the journal's publication ethics. In order to warrant integrity of the published works, Nonlinear Processes in Geophysics also has a clear policy on competing interests.

To improve the traceability and reproducibility of the presented works, NPG has implemented a data policy. Data and other underlying or related material having a digital object identifier (DOI) can also be displayed in the article's asset tab.

General aspects concerning the role of authors, editors, and referees are summarized under general obligations for authors, general obligations for editors, and general obligations for referees.

Copernicus Publications makes sure that the online, open-access publications are indexed and archived worldwide in electronic archives, search engines, and databases, in order to guarantee their maximum dissemination and impact. NPG is archived and indexed in

eArchives

Indexing and abstracting services

Astrophysics Data System (ADS), Cabell's, CNKI, Current Contents/Physical, Chemical & Earth Sciences, Directory of Open Access Journals (DOAJ), Earth, Atmospheric & Aquatic Science Database (ProQuest), Environment Complete (EBSCO), Geological Survey of Austria (GBA), Gale/Cengage, GeoBase, GeoRef, GoOA (Chinese Academy of Sciences), Google Scholar, J-Gate, SciTech Premium Collection (ProQuest), ProQuest Central, ProQuest Central K-12, Research Library (ProQuest), SciTech Premium Collection (ProQuest), Science Citation Index Expanded, Scopus, World Public Library

Corrections and retractions

NPG pursues the following policy for making corrections to its peer-reviewed content:

  • Modification of a paper: Copernicus Publications reserves the right to replace a *.pdf file if purely technical corrections are necessary (e.g. corrupt file or incorrect bibliographical entry). In such cases, archives and indices are informed. Under no circumstances will the content be changed.
  • Corrigendum (ACP only): notification of an important error made by the author(s) or by the journal that affects the publication record or the scientific integrity of the published, peer-reviewed work or the reputation of the author or the journal. Corrigenda are represented by a formal online notice.
  • Corrections to supplements can only be made in exceptional cases (e.g. major errors that compromise the conclusion of the study). The availability of new data is not a reason for the revision of a published supplement. A supplement is a peer-reviewed and integral part of the paper, and hence part of the published record.
  • Retraction: authors or, in specific cases, editors can decide to formally withdraw a published journal article. The article stays online but the reader is notified about the retraction. Such retractions are most often accompanied by an editorial note explaining the background. The retraction also includes the withdrawal of discussion papers that are not accepted for further review after discussion or where a revised manuscript was not accepted for final journal publication.
  • Marked as fraud: in the unlikely case that Copernicus Publications is notified that a posted discussion paper or a published journal article turns out to be a fraud, the paper stays online but is formally withdrawn. The reader is notified about the status and fraud papers are always accompanied by an editorial note pointing out the malpractice.
Publications Copernicus