How remote sensing of streams provides valuable data for the characterization, prediction, and warning of impending flash floods.
Hazards & Disasters
New Data Record Extends History of Global Air Pollution
Researchers extend long-term aerosol records to the past 40 years by combining two existing algorithms to process satellite data over both land and sea.
Quakes Pack More Punch in Eastern Than in Central United States
A new finding rests on the recognition that fault types differ between the two regions. It helps explain prior evidence that human-induced quakes and natural ones behave the same in the nation’s center.
A Closer Look at an Undersea Source of Alaskan Earthquakes
A systematic survey offers a striking portrait of movement along a 500-kilometer-long undersea section of the Queen Charlotte–Fairweather fault off the coast of southeastern Alaska.
Greenland Fires Ignite Climate Change Fears
The fires are stoking worries about the vast island’s thawing permafrost.
Offshore Wind Turbines Can’t Yet Withstand Category 5 Hurricanes
A new study suggests that more robust turbine design is needed to weather high winds.
Caught on Camera: Volcanic Bombs in Flight
A recent paper in Reviews of Geophysics revealed new insights into the flight patterns of solid and molten debris flung out of volcanos during explosive eruptions.
Indonesian Cave Reveals Nearly 5,000 Years of Tsunamis
Researchers explore a coastal cave containing layers of sand deposited by 11 prehistoric tsunamis and demonstrate that the time period between massive waves is highly variable.
A Promising New Tool for Forecasting Volcanic Hazards
A new model that simulates the behavior of surging ash clouds may help scientists to better predict the hazards associated with the deadliest type of volcanic flows.
What Caused the Ongoing Flooding on Lake Ontario?
The floodwaters have also affected residents downstream along the Saint Lawrence River. Although politicians quickly blamed regulations, scientists say it was a perfect storm of natural factors.
