1. Research Article (5000 words) Method development: describes new computation methods for the geosciences using standard scientific article format; includes a range of methods such as those for geoscience information infrastructure, collection, representation, management, analysis, visualization, as well as for software development and scientific and social use of geoscience information. This also includes new educational methods as well as comparison of significant computational methods for the geosciences using well-defined benchmarks to reveal new understanding about the nature or use of the methods. In general, papers should include both a novel method or comparison, and a demonstration of relevance to the geosciences. Emphasis is on novelty of method, or comparison with other methods.

The highest level of academic quality is expected in terms of citation of appropriate resources, proper referencing of the source of figures, and disclosure of related articles by the same author(s) with related content.

1. Application Article (5000 words) Application development: describes new digital products created for the geosciences using existing computational methods, and discusses their novelty as well as significance and relevance to important geoscience issues: e.g. a novel database, a significant resource assessment, a novel software application or web service. This also includes comparison of products using well-defined benchmarks to reveal a new understanding about the nature or use of the products. Emphasis is on novelty or significance of the application, or comparison of applications or products.

Author(s) must disclose financial relationships to product vendors, where applicable, and product endorsements are not accepted.

1. Review Article Scientific review (6000 words): critically describes the state-of-the art of some field in computation for the geosciences. Emphasis is on completeness, depth and novelty of the critical review. Reviews must be timely, of general interest, high quality, written by recognized experts, and will be run only on an occasional basis. Review outlines should be pre-approved by a member of the C&G editorial board, and reviews may be used to frame special C&G issues.

4 Short Note Short Notes (maximum 1500 words) provide a brief description of an application or a timely research development. Emphasis is on novelty or significance of the research or application. An abstract is not required.

1. Book and Software Reviews Book and software reviews (1500 words): describe and evaluate a new book or similar significant publication relevant to computation in the geosciences. Software reviews are also published.

2. Letter to the Editor Letters to the Editor provide a mechanism to debate issues arising from published articles. They are intended to serve workers in academia, industry and government.