Research Letter R. H. Holzworth Corresponding Author bobholz@uw.edu orcid.org/0000-0002-8839-618X Earth and Space Sciences, University of Washington, Seattle, WA, USA Correspondence : bobholz@uw.edu Search for more papers by this author This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record.
