Journal profile · Geochemistry & Geophysics
Nonlinear processes in geophysics
ISSN 1023-5809 · eISSN 1607-7946 · European Geosciences Union · GERMANY · Bimonthly · Founded 1994
Nonlinear processes in geophysics: CAS Zone 4 · Earth Sciences (2025 upgraded edition); impact factor 2.6; fully open access; APC charged, amount not published; review 6–12 weeks (community reports); community-reported acceptance: easy; 29 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Nonlinear processes in geophysics is published by European Geosciences Union and is in Zone 4 of Earth Sciences in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Climate variability and models, Meteorological Phenomena and Simulations and Oceanographic and Atmospheric Processes, together about 32.5% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
Nonlinear Processes in Geophysics (NPG) is an international, inter-/trans-disciplinary, non-profit journal devoted to breaking the deadlocks often faced by standard approaches in Earth and space sciences. It therefore solicits disruptive and innovative concepts and methodologies, as well as original applications of these to address the ubiquitous complexity in geoscience systems, and in interacting social and biological systems. Such systems are nonlinear, with responses strongly non-proportional to perturbations, and show an associated extreme variability across scales. All sections of NPG are more than ever eager to deal with big data and artificial intelligence with new sensing, analysis, and simulation technologies. These encompass approaches ranging from data-driven research to mathematical physics. NPG is published by the EGU and is a partner journal of the AGU. It is open-access with a public discussion stage to ensure a more objective review process. NPG maintains sections for research articles, review articles, comments and replies, book reviews, and fast-track NPG Letters. NPG Letters are short papers with a strong impact. Authors are strongly encouraged to consider publishing in this section.
From the journal's Aims & Scope
Research area (LetPub): Geochemistry & Geophysics
Editorial board by country: 1 in mainland China (about 6%); most named France 4, United Kingdom 2, Mainland China 1, United States 1, Japan 1 (17 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Climate variability and modelsEnvironmental Science13.1%
- Meteorological Phenomena and SimulationsEarth and Planetary Sciences11.2%
- Oceanographic and Atmospheric ProcessesEarth and Planetary Sciences8.2%
- Solar and Space Plasma DynamicsPhysics and Astronomy7.5%
- Ionosphere and magnetosphere dynamicsPhysics and Astronomy7.3%
- Complex Systems and Time Series AnalysisEconomics, Econometrics and Finance6.7%
- Geomagnetism and Paleomagnetism StudiesBiochemistry, Genetics and Molecular Biology5%
- Ocean Waves and Remote SensingEarth and Planetary Sciences4.6%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Earth Sciences Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Earth Sciences | Zone 4 |
| Minor | Geosciences, Multidisciplinary | Zone 4 |
| Minor | Mathematics, Interdisciplinary Applications | Zone 4 |
| Minor | Meteorology & Atmospheric Sciences | Zone 4 |
| Minor | Physics, Fluids & Plasmas | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Earth Sciences Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Earth Sciences | Zone 3 |
| Minor | Geosciences, Multidisciplinary | Zone 4 |
| Minor | Mathematics, Interdisciplinary Applications | Zone 3 |
| Minor | Meteorology & Atmospheric Sciences | Zone 3 |
| Minor | Physics, Fluids & Plasmas | Zone 3 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Earth Sciences Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Earth Sciences | Zone 4 |
| Minor | Geosciences, Multidisciplinary | Zone 4 |
| Minor | Mathematics, Interdisciplinary Applications | Zone 4 |
| Minor | Meteorology & Atmospheric Sciences | Zone 4 |
| Minor | Physics, Fluids & Plasmas | Zone 4 |
Top journal: noReview journal: no
Database indexing
SCIEScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
Web of SciencePublisher website
Other: Google Scholar
As the journal's website lists them, not checked against each database; for Web of Science editions the records above apply.
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 2.6LetPub ·
- 5-year impact factor (publisher) 2025
- 71Publisher website ·
- 5-year impact factor (publisher) 2024
- 19Publisher website ·
- 5-year impact factor (publisher) 2023
- 1.9Publisher website ·
- CiteScore 2026-06
- 3.8LetPub ·
- CiteScore (publisher) 2025
- 3.8Publisher website ·
- SJR 2026-06
- 0.81LetPub ·
- SJR (publisher) 2025
- 0.81Publisher website ·
- SNIP 2026-06
- 1.2LetPub ·
- SNIP (publisher) 2025
- 1.2Publisher website ·
- h-index
- 52LetPub ·
- h-index
- 85OpenAlex ·
- i10-index
- 989OpenAlex ·
- 2-year mean citedness
- 2.68OpenAlex ·
- Self-citation rate
- 7.4%LetPub ·
- Share of gold OA articles
- 100%LetPub ·
Volume
- Articles per year
- 29LetPub ·
Articles by year OpenAlex count · 1,629 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 25 | 25 | 8 |
| 2025 | 29 | 29 | 41 |
| 2024 | 39 | 39 | 200 |
| 2023 | 33 | 33 | 334 |
| 2022 | 22 | 22 | 228 |
| 2021 | 36 | 36 | 390 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
- Average review time (community reports)
- 6–12 weeksLetPub ·
- Average acceptance (community reports)
- EasyLetPub ·
- Submission to publication (journal-reported)
- about 33 weeksDOAJ ·
- Peer review
- Open peer reviewDOAJ
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessDOAJ
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | EUR 1,350 | Yes | CC BY | |
| OpenAlex | EUR 1,310 | — | — | |
| LetPub | EUR 1,310 | Yes | — | |
| Publisher website | Yes, amount not published | — | — |
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
Article types accepted5
- book reviewsNPG maintains sections for research articles, review articles, comments and replies, book reviews, and fast-track NPG Letters.Length not stated
- comments and repliesNPG maintains sections for research articles, review articles, comments and replies, book reviews, and fast-track NPG Letters.Length not stated
- npg lettersNPG maintains sections for research articles, review articles, comments and replies, book reviews, and fast-track NPG Letters. NPG Letters are short papers with…Length not stated
- research articlesNPG maintains sections for research articles, review articles, comments and replies, book reviews, and fast-track NPG Letters.Length not stated
- review articlesNPG maintains sections for research articles, review articles, comments and replies, book reviews, and fast-track NPG Letters.Length not stated
Policy excerpts from the journal's websiteAI use, Code availability, Data availability
- AI use
AI usage must be described in Methods or Acknowledgements Model summary
Should you have used AI tools to generate (parts of) your manuscript, please describe the usage either in the Methods section or the Acknowledgements.
Source ↗Publisher website ·- Code availability
Code availability section required when software/code is cited Model summary
The manuscript must then include a section entitled "Code availability" or, in the case of data and code, "Code and data availability".
Source ↗Publisher website ·- Data availability
Data should be deposited in reliable repository and linked via DOI Model summary
We recommend that any data set used in your manuscript is submitted to a reliable data repository and linked from your manuscript through a DOI.
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- European Geosciences Union
- Country or region
- GERMANY
- Language
- English
- Frequency
- Bimonthly
- Founded
- 1994
- ISSN
- 1023-5809
- Electronic ISSN
- 1607-7946
- Official links
- Journal homepage ↗OpenAlex
- Author guidelines ↗LetPub
- Aims & Scope ↗LetPub
- Special issues ↗Publisher website
- APC information ↗DOAJ
- Fee waivers ↗DOAJ
- Open access statement ↗DOAJ
- License & copyright ↗DOAJ
- Peer review process ↗LetPub
- Editorial board ↗LetPub
- Plagiarism policy ↗DOAJ
FAQ
Frequently asked questions about Nonlinear processes in geophysics
What CAS zone is Nonlinear processes in geophysics in?
In the 2025 upgraded edition of the CAS Journal Ranking, Nonlinear processes in geophysics is in Zone 4 of Earth Sciences, and in Zone 4 of the minor category Geosciences, Multidisciplinary / Mathematics, Interdisciplinary Applications / Meteorology & Atmospheric Sciences / Physics, Fluids & Plasmas. In the 2026 Xinrui edition it is in Zone 3 of Earth Sciences. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Nonlinear processes in geophysics?
The latest impact factor listed by LetPub is 2.6; CiteScore 3.8, h-index 85.
How long does peer review take at Nonlinear processes in geophysics?
Authors report an average review time of 6–12 weeks; the community-reported acceptance is “Easy”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Where are the editorial board members of Nonlinear processes in geophysics based?
Of the 17 board members whose country the journal's board page names, 1 (about 6%) are in mainland China; the countries named most often are France (4), United Kingdom (2) and Mainland China (1). Counted from the institutions listed on the board page; for reference only.
Which databases index Nonlinear processes in geophysics?
According to LetPub and DOAJ records, Nonlinear processes in geophysics is indexed in SCIE, Scopus and DOAJ. The journal's website also lists Web of Science; that list has not been checked against each database.
Is Nonlinear processes in geophysics open access, and what is the APC?
Nonlinear processes in geophysics is a fully open-access journal. APC charged, amount not published.
Sources and updates
The facts on this page come from LetPub, OpenAlex, Publisher website, DOAJ; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-24). Last updated: .