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It is our goal to help you produce and submit the highest quality graphics and multimedia to accompany your article. This section reviews how to prepare and submit electronic files for publication.
A figure includes the entire illustration or diagram, as well as labeling, belonging to a single caption. Figures can be integrated in the main article or supporting information. The supplement file should be converted to a .PDF file.
AGU recommends that you submit figures as .eps, .tif, .jpg, or .pdf file types.
.eps is a vector graphics format. Vector graphics combine mathematically mapped points, lines, curves, and shapes to create images. These files provide the sharpest reproduction of line art, graphs, and text and can be enlarged without any loss in quality.
(left) A raster-based file is made from a grid of pixels. (right) A vector-based file is created from mathematically mapped lines and shapes.
.tif and .jpg files are raster graphics formats. Raster-based art forms images through a grid of pixels, or points of color. These files are best for reproducing photography and photorealistic images. The quality of a raster image depends on resolution, or the number pixels per inch (PPI). Therefore, all raster graphics must have a resolution between 300 and 600 ppi (at final size).
.pdf is an open standard for exchanging documents. Depending on the software used to create it, a .pdf can contain high-quality vector and/or raster-based images. Always choose “Press Quality” under .pdf options.
Line Art Vector graphics formats such as .eps offers the best reproduction of sharp edges, like those in type, graphs, and bar charts. Most vector drawing programs offer an .eps “Save As” or “Export” option. When saving .eps files, please be sure that they meet the criteria below.
An example of line art created using a vector-based format such as .eps
(left) Outlined text and (right) Nonoutlined text
A figure using (left) hairline lines and (right) the correct 0.5 point lines.
Raster Art: This format is best for photography, halftones, shading, texture, patterns, or gradation blends. The image quality of a raster based file is determined by resolution (PPI). When saving or exporting as a .tif or .jpg, please follow these criteria.
A raster-based file is ideal for reproducing photographic
images, halftones, shading, texture, patterns, or blends.
Combination Art: To reduce the file size of complex vector art, or to combine and label raster-based art, a figure file can combine vector elements with raster. This means that complex or photographic portions of a figure come from a raster file while the type and line art are added using a vector editing program (such as Illustrator or Powerpoint.) When opening a raster file in a vector editing program, use the “open” or “import” commands.
An example of combination art that combines a raster background with vector lines and type.
(Never use copy/paste, cut/paste, a screenshot, or screen dump to open your files in another program.)
The image resulting from combination art should be saved as an .eps file. When using PowerPoint, save the image as a .pdf file.
Several graphics software packages are available to help you create high-quality graphics:
In order for the text in your published figures to have the same appearance as that in your figure files, AGU recommends using these standard fonts:
Any nonstandard font used in a vector-based .eps or .pdf file should be outlined, converted to curves, or embedded (see Line Art).
Excellent for lines,
graphs, and type. No
Best for photographic
between 300 and 600
ppi at final print size.
Can contain excellent
vector- or raster-based
on the program used.
Save as or Print-to-file
as a PDF. Choose
“press quality” preset.
for graphics file
AGU’s goal is for the text size of the labeling in each figure to match the text size in the body of the article. This means that for most AGU journals, text and labeling in a figure should be 8 points at the final printing size. Subscript and superscript should be 6 points.
All information within the figure, including symbols, legends, characters, patterns, and shading, must be legible at the final size. Figures should be sized between:
Raster (.tif or .jpg)
Resolution (in Pixels)
590 – 1180
1416 – 2832
1/2 to 2/3 page
2006 – 4012
2242 – 4484
Multipart Figures: Multipart figures should be combined into one figure file and have sequential lowercase letter labels added for reference to the figure’s caption. The number of figure files should equal the number of figure captions.
If you need to add labels or combine figures, open or import your files into a vector drawing program. (Never use copy/paste, cut/paste, a screenshot, or screen dump to open your files in another program.
Name each file according to: the AGU manuscript number, a hyphen, the figure number and its file format. Examples: 2011ja002893-f01.tif, 2010wr012798-f01.eps
For supplemental figures, all figures should be included with text in one supplemental file, and converted to a PDF file. If separate files are necessary because of the figure layout (for example, a large landscape map) add the upper case “S” before the figure number. Examples: 2011gc009734-sf01.eps.
Before submitting your files, please be sure of the following:
Multimedia can include any electronic, audio, video, animation, or interactive format, and can be any file type.
For widest availability of movies, AGU recommends submitting files that can be viewed using Windows Media Player and are no larger than 50 mb.
To submit multimedia files as supporting information using the GEMS submission form, under Quantities, select “Dynamic Content.” There is no charge for the submission and archiving of supporting information.
Multimedia files can also be integrated into the article, either as a still image or as a placeholder. In both cases, the caption will direct the reader to the online multimedia files.
Please contact journal production staff.
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