Soil moisture estimates, inferred from thousands of tree rings spanning the past 12 centuries, highlight the severity of the recent record-breaking drought.
Geophysical Research Letters
Posted inResearch Spotlights
Aquifers Spew More Pollution into Oceans Than Rivers
A new model makes a direct estimate of contaminants in submarine groundwater discharge.
Posted inResearch Spotlights
Large-Scale Electric Currents May Flow Through Mercury's Crust
NASA's MESSENGER spacecraft discovered electric currents in Mercury's magnetosphere directed toward and away from the planet. Do the currents reach the planet? If so, where do they go?
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Unusual Echo Signal in Atmospheric E Layer
Metallic plasma layers in Earth's ionosphere interfere with radio communications and produce odd echo behavior at specific frequencies.
Posted inResearch Spotlights
Seismic Stress Modeling Puts Istanbul in the Crosshairs
Twenty years of ground motion observations show that seismic strain is accumulating south of Istanbul.
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Tracking Down a Subduction Zone Earthquake
Researchers use computer simulations to find the date and earthquake source of an ancient tsunami that deposited sediment in a Hawaii sinkhole.
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Microbial Activity in Dry Soils
Researchers investigate how microbes respire in dry conditions.
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Wave Energy Affects the Surf Zone Heat Budget
A study of water temperature in nearshore environments shows that wave energy was the second-largest driver of temperature changes in the surf zone.
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Seismic Wave Modeling Goes Local
A new technique brings accurate models of traveling seismic waves to a regional scale.
Posted inResearch Spotlights
Polar Warming Makes the Jet Stream Stable, Not Wavy or Blocked
An idealized climate model suggests polar warming stabilizes the jet stream and reduces atmospheric blocking at midlatitudes.