Journal Highlights

Improved Moving Window Cross-Spectral Analysis for Resolving Large Temporal Seismic Velocity Changes in Permafrost

Editor’s Highlight—

This paper describes the use of noise-based seismic monitoring to study seasonal changes in the seismic properties of permafrost. This work has broader applicability in polar science. Monitoring in the polar regions at high spatial and temporal scales is of great interest, and in the last two years there have been a number of papers on ice sheet and glacier monitoring that use seismology. This is the first concerning monitoring permafrost and could open a new conversation into non-glacier and non-ice sheet polar seismic monitoring. Other interesting applications of seismic monitoring of dynamic polar processes such as freeze/thaw are likely to emerge in the coming years.


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Early Results: Juno at Jupiter 

Early results from Juno's mission at Jupiter including approach to Jupiter and the first perijove pass (PJ1). Juno's scientific objectives include the study of Jupiter's interior, atmosphere and polar magnetosphere with the goal of understanding Jupiter's origin, formation and evolution. This collection of papers provides early results from Juno's measurements of the gravity and magnetic fields, deep atmospheric microwave sounding, infrared, visible and ultraviolet images/spectra and an array of fields and particles instruments as well as context for the early results with respect to current theory and models of Jupiter's formation and evolution. Topics include both Juno - Jupiter related theoretical models and data analysis as well as collaborative observations made from Earth based assets.