AGU requires that the following criteria be met before any manuscript can be published. AGU will no longer process papers submitted in an incorrect format.

• Double space (24 point line spaced) all material, including title page (affiliations), abstract, text, reference section, table title and information, and list of figure legends. Double space throughout the review/revision and copy-editing processes.

• Paginate sequentially in upper right corner, beginning with the page on which your title and affiliation appear as page 1. Number all pages.

• Manuscript (and pagination) order is the following: title page, author(s) name and address (with ZIP code), abstract, introduction, text, appendix (if any), acknowledgments, references, figure legends and tables (followed by figures themselves).

• Begin appendix (if any), acknowledgments, references, tables, and legends on separate pages.

• Supply an abstract (less than or equal to 250 words), figure legends, table titles, typed double space.

• Supply a short form of your manuscript title (to be used as a running title).

• Submit one set of clear sharp glossy prints or original drawings of figures for the printer. Figure copy 8 1/2" x 11" is preferred due to processing requirements.

• Figures are not suitable for reproduction if the lettering is below the 1 1/2 mm minimum and therefore will disappear when the figure itself is reduced to fit the journal page size; use mechanical lettering device for lettering on figures; check for any misspellings; provide a scale; metric requirement has not been adhered to.

• Each figure must be cited in text and must have a figure legend. Figure callouts must be in numerical order within the text.

• Your reference section should conform to the journal style indicated.

• Cite references in text by name(s) of author(s) and year of publication only (i.e. not by numbers).

• Personal communications and unpublished data or reports should not be included in the reference list; they should be shown parenthetically in text.

• Alphabetize reference list by last name of principal authors.

• In references, include titles of articles, letters, reports, and books.

• Check text citations against reference section for spelling, dates, and omissions.

• Cite or delete bibliographic references not referred to in text.

• In mathematical material, all characters available on a standard "typewriter" must be typewritten in equations as well as in text. Any symbol that must be written by hand must be identified in a marginal note the first time it appears in the paper. You will be charged for all corrections in galley proof for material that was handwritten in the manuscript. Symbols which look alike, such as the lower-case letter "ell" and the number "1" and the upper-case letter "oh" and the numeral "zero" which are identical on most typewriters, should be identified in marginal notes the first time they occur.

• Conform to standards for mathematical material explained in Information for Contributors.

• Delete vertical lines from tables.

• Footnotes must be incorporated into the text.

• Convert to metric system throughout text, figures, and tables.

• Include ZIP codes in addresses.

• Verify that all portions of typescript are legible.

• Submit abstract typed in GAP form.