Authors in AGU journals are expected to support publication through payment of author fees. Publication fees vary by journal; details can be found here.
AGU excess page fees are in addition to the standard journal fee (see table). These fees are based on the number of words in the abstract, text, and captions only (excluding titles, author lists and affiliations, tables, and references), and number of display items (figures and tables) as follows:
Total publishing units = # of words/500 + # of figures + # of tables
Standard research articles in journals other than GRL with 25 publishing units or less are not be charged any excess length fees. GRL papers with a total of 12 publishing units or less are charged an excess length fee; Frontier articles are charged an excess length fee at 19 publication units. Tables and figures are limited to one full page in the article. Larger tables or figures should be put in Excel or .cvs files in the supplementary information.
For example, a 3,000-word article (excluding title, acknowledgments, author and affiliation information, and references) with 3 figures and 2 tables would be 11 publishing units. A 10,000-word article (excluding title, acknowledgments, author and affiliation information, and references) with 3 figures and 2 tables would be 25 publishing units.