![Charts relating to the results presented in Kim et al. [2019]](https://i0.wp.com/eos.org/wp-content/uploads/2020/01/2019JD031416_Figure-4-sized-for-Eos.png?resize=820%2C615&ssl=1)
The Quasi-Biennial Oscillation modulates the Madden-Julian Oscillation in observations, but it does not significantly influence prediction skills in a multi-model assessment.
Editors’ Highlights
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Remotely Monitoring Groundwater Using Standard Techniques
Novel use of standard, single-station seismological techniques can be used to remotely monitor aquifer systems.
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Repeating Famous Hillslope Experiment Provides New Insights
Repeating a famous hillslope experiment after 55 years shows that soil properties can change within several decades and highlights the importance of a leaky boundary for hillslope drainage.
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Skywatchers Spy Rippling Waves in the Northern Lights
Not to be outdone by the discovery of STEVE sub-auroral emissions last year, citizen scientists across Scandinavia reveal dune-shaped optical features, a new atmospheric phenomenon.
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Using Earth’s Atmosphere as a Solar Flare Monitor
Measurements of very-low frequency radio signal phase and amplitude can detect upper atmosphere changes caused by solar flares, enabling us to monitor flare occurrence and intensity.
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New Isotope Model Predicts Denitrification from Riparian Zones
A new model quantifies the relative contributions of denitrification and other processes of nitrogen uptake, such as by plants, from groundwater in riparian areas around streams.
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Different Eddy Transport for “Lazy” and “Athletic” Observers
Two specifications of fluid dynamics—taking measurements at a fixed point and following a fluid parcel—are compared for quantifying eddy transport in the ocean.
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Microphysics and Positive Lightning in Hokuriku Winter Clouds
The microphysics of the frequent, and frequently positive, lightning of Hokuriku winter clouds was investigated by systematic, in situ observation of individual precipitation particle type and charge.
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Hydropower and Bugs
Alpine hydropower plants commonly flush sediment that accumulates at intakes, but the associated rapid rise in discharge, turbidity, and streambed instability put aquatic insects at risk.
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Atmospheric Rivers Trigger Heavy Snowmelt in Western USA
A rare atmospheric phenomenon that transports large quantities of water vapor into the coastal watersheds of the western USA is responsible for up to 10–20% of intense snowmelt events in the region.