Earthquake hazard calculations for California’s coast are refined with a view of precariously balanced rocks that would have fallen if the largest predicted shaking happened in the past 20,000 years.
Editors’ Highlights
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The Importance of Solar Lyman-alpha Emissions for Space Weather
Lyman-alpha emissions convey a major part of the solar-flare photon energy reaching Earth and play a significant role in flare-driven enhancements of ionospheric conductivity.
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The Restless Geomagnetic Field Over the Past 70,000 Years
Detailed paleomagnetic records from Black Sea sediments reveal intricate changes in the field during geomagnetic excursions.
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Rainwater Harvesting Can Reduce Flooding as Well as Saving Water
Weather forecasting can greatly improve benefits of rainwater harvesting.
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Environmental Impact Bonds Incentivize Watershed Restoration
Environmental Impact Bonds for financing new water and environmental infrastructure can be properly priced with the help of watershed modelling.
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Ensemble Modeling of Coronal Mass Ejection Arrival at 1 AU
Heliospheric imaging data can be used in ensemble modeling of CME arrival time at Earth to improve space weather forecasts, treating the solar wind as a 1-D incompressible hydrodynamic flow.
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What the Upper Ocean Looks Like During a Hurricane and Why It Matters
High-resolution measurements reveal the structure of the upper ocean under a hurricane and its feedback on storm intensity.
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The Evolution of Observed Hurricane Eyewall Shapes
The observational evidence of the wind field of Hurricane Michael using radar imagery showed an eyewall structure evolution with elliptical, triangular, and square shapes for the first time.
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Deconvolving What Lies Beneath the Himalaya
A new study that combines constraints from the 2015 Gorkha earthquake, forward models of deforming crust, and thermochronology data gives new insights into the structure of the Himalaya.
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Measuring Paleoclimate During a Deep-Time Deep Freeze
New application of clumped-isotope thermometry to 700-Myr rocks documents large climate swings related to Snowball Earth glaciation and offers better understanding of an earlier Earth system.