Why does low-frequency energy come from the shallow part of ruptures, and the high frequencies from deep?
AGU Advances
Posted inEditors' Highlights
Good, Soon, and Cheap – Earthquake Early Warning by Smartphone
Fixed smartphone networks can provide robust early warning of earthquakes at far lower costs than traditional scientific arrays, which is an important consideration for regions with limited resources.
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Sea-Level Science Coordination: A U.S. and Global Concern
Sea-level rise is happening. There are basic science needs for supporting decision making for sea-level adaptation efforts and challenges to making information available to stakeholders.
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Aftershocks and Fiber Optics
Internet cables can be transformed into a string of dense seismic sensors, and this approach has now been shown to be highly useful for quickly monitoring seismicity after major earthquakes.
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Fingerprints of Jupiter Formation
Meteorite isotopes, meteorite paleomagnetics, and planet formation models collectively show Jupiter formation via first slow then fast collection of material by core accretion in <5 million years.
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Modeling Urban-Weather Effects Can Inform Aerial Vehicle Flights
Microscale modeling can be used to understand and predict urban weather with sufficient detail to inform and support flight safety for crewed and uncrewed aerial vehicles.
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Raising Central American Orography Improves Climate Simulation
Elevation of Central American orography significantly reduces the pervasive tropical rainfall bias by blocking the easterlies and consequently warming the northeastern tropical Pacific.
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Evidence of Crevasses Transporting Heat Deep into Greenland Ice
Crevasses are a feature of ice sheets but how deep they extend has been a mystery. Now crevasse traces have been visually identified to 265 meters in a borehole in a fast-moving outlet glacier.
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Constraining Global Power Plant Emissions of Carbon Dioxide
Airborne and satellite imaging spectrometers provide accurate quantifying of CO2 emissions at the facility scale, which is important to emission budgets and policy constraints.
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Earthquake Rupture Solution is Up in the Air
Perhaps the most complex earthquake rupture ever studied is further constrained by signals from Earth’s ionosphere.