Research Spotlights Archive - Page 100 of 110

3 March 2015

Found: The Submarine Source of an 1891 Eruption Near Sicily

Analysis of a volcano may help explain why some eruptions produce volcanic balloons–hollow chunks of lava that encase a gas-filled cavity.

Geology & Geophysics

3 March 2015

Seismic Stress Modeling Puts Istanbul in the Crosshairs

Twenty years of ground motion observations show that seismic strain is accumulating south of Istanbul.

Climate Change

2 March 2015

What Drove Sea Surface Temperature Change During the Pleistocene?

New information suggests that atmospheric carbon dioxide concentration was just one of the main drivers of warming sea surface temperatures in the Pleistocene.

Planetary Sciences

27 February 2015

"Knobby Terrain" a Sign of Mars's Explosive Past

Newly identified knobby terrain related to ancient volcanoes on Mars hint that pyroclastic ash and rock flowed down slopes early in the red planet's history.

Ocean Sciences

26 February 2015

Fluctuations in Atlantic Meridional Overturning Circulation

Variations in large-scale convection in the Atlantic Ocean are likely driven by wind.

Geology & Geophysics

25 February 2015

What Causes Broadband Electrostatic Noise in Space?

Factors that generate electrostatic noise involve how electric fields compress magnetized plasmas.

Atmospheric Sciences

20 February 2015

Reduced Emissions Lead to Clearer Skies over Alabama

Aerosol pollutants are on the decline—and so are their effects.

Atmospheric Sciences

18 February 2015

Changing Patterns in U.S. Air Quality

Over the northeast United States, ground-level ozone will peak in the winter rather than the summer thanks to continued reductions of regional nitrogen oxide emissions from smokestacks and tailpipes.

Hydrology, Cryosphere & Earth Surface