Auxiliary material for this article contains three figures, a table, and a text file.

Auxiliary material files may require downloading to a local drive depending on platform, browser, configuration, and size. To open auxiliary materials in a browser, click on the label. To download, Right-click and select “Save Target As…” (PC) or CTRL-click and select “Download Link to Disk” (Mac).

Additional file information is provided in the readme.txt.

grl29384-sup-0001-readme.txtplain text document4Kreadme.txt
grl29384-sup-0002-fs01.pdfPDF document169KFigure S1. Geometrical characteristics of six runnels in Willapa Bay, Washington State, USA: runnel depth, runnel width, spacing between two runnels.
grl29384-sup-0003-fs02.pdfPDF document276KFigure S2. Measurements of mud strength on the ridge top, at the runnel bottom, and on the bank of the nearby channel.
grl29384-sup-0004-fs03.pdfPDF document337KFigure S3. Hydrodynamic measurements in the runnel, starting at 10 am on April 10, 2010.
grl29384-sup-0005-ts01.pdfPDF document38KTable S1. Comparison of maximum values of velocity, bottom shear stress, sediment concentration, and sediment flux during ebb, flood, and shallow flow in the runnel.
grl29384-sup-0006-txts01.pdfPDF document12KText S1. List of references from which velocity and sediment concentration data for shallow flows in mudflats were derived.

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.