Several studies at Erebus volcano have recorded pulsatory behavior in many of the observable properties of its active lava lake. A strong correlation between the variations in surface speed of the lake and the composition of gas emitted has previously been noted. While previous studies have shown that the SO 2 flux and the surface elevation exhibit pulsatory behavior with a similar period to that of the surface speed and gas composition, suggesting they are linked, a lack of overlap between the different measurements has prevented direct comparisons from being made. Using high time-resolution measurements of surface elevation, surface speed, gas composition, and SO 2 flux, we demonstrate for the first time an unambiguous link between the cyclic behavior in each of these properties. We also show that the variation in gas composition may be explained by a subtle change in oxygen fugacity. The cycles are found to be in-phase with each other, with a small but consistent lag of 1-3 min between the peaks in surface elevation and surface speed. Explosive events are found to have no observable effect on the pulsatory behavior beyond the $5 min period required for lake refill. The close correspondences between the varying lake surface motion, gas flux and composition, and modeled oxygen fugacity suggest strong links between magma degassing, redox change, and the fluid dynamics of the shallow magmatic system.

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This project has been part of our lives for a long time. It began in 2011 when all the editors were working at the Michigan State University (MSU) Writing Center, Trixie Smith as the director and the rest of us as graduate students. Every day we found ourselves grappling with issues and ideas connected to graduate writers through our work at the writing center: working one-to-one with graduate writers, facilitating graduate writing groups, and offering workshops for graduate students, such as our Navigating the Ph.D. workshop series. The work was also personally relevant to most of us since we were graduate students at the time, frequently finding ourselves experiencing imposter syndrome and letting our identities as graduate students consume our lives. Little did we-excepting Trixie, perhaps-know then that our interest in graduate writing would intensify when we became junior faculty and found that we still faced many of the same writing-related concerns that we did as graduate students.Our motivations for developing this edited collection on graduate writing across the disciplines began when we turned from interacting with graduate writers to researching graduate writers and graduate writing. When the Writing, Rhetoric, and American Cultures department at MSU began an initiative to create research clusters that bring faculty, staff, and students together to engage in conducting academic research and developing publications, we decided that a research cluster focusing on graduate writing would be ideal. We participated in this Graduate Writing Research Cluster for the two years that we were all still at MSU and continued to collaborate when we began moving into faculty positions outside of MSU. Our collaboration culminated in a special issue of Across the Disciplines and this edited collection. What