Tags Geophysics

Tag: Geophysics

Electrical conductivity of salt water in seismogenic zones theoretically determined

A joint research team consisting of Hiroshi Sakuma, senior researcher, Functional Geomaterials Group, Environment and Energy Materials Division, National Institute for Materials Science (NIMS),...

Scientists track Greenland’s ice melt with seismic waves

Researchers from MIT, Princeton University, and elsewhere have developed a new technique to monitor the seasonal changes in Greenland's ice sheet, using seismic vibrations...

Seismic networks can be the backbone for 21st century firefighting

On the YouTube video, the fire appears first as a small white dot among the trees, then as an unmistakable wisp of smoke curling...

The fourth dimension

Remote sensing techniques facilitate observations and monitoring of ground displacements. In particular, space-borne Differential Synthetic Aperture Radar Interferometry (DInSAR) allows accurate measurements of ground...

Pavlof Volcano eruption without earthquakes?

Pavlof Volcano began a new eruption on March 27 with little advance warning. Many people have asked why there were no earthquakes in the...

New cause of exceptional Greenland melt revealed

A new study by researchers from Denmark and Canada's York University, published in Geophysical Research Letters, has found that the climate models commonly used...

New gravity map gives best view yet inside Mars

A new map of Mars' gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden...

Tiny Accelerometers Create Europe’s First Urban Seismic Network

When a strong earthquake hits an urban area, prompt rescue operations can minimize the number of victims. Logically, the probability of saving a human...

Gravity glasses offer a view of the Earth’s interior

How does the ice on the polar caps change? And which are the geological characteristics of the Earth's crust beneath? What is the structure...

Geophysicist Questions Stability of Antarctic Ice Sheet


A professor in Syracuse University's College of Arts and Sciences is joining the growing debate over the fate of the Robert Moucha, assistant professor...

Ionospheric anomalies – distinguishing quakes from storms

Research at the University of Electro-Communications suggests how to identify anomalies due to geomagnetic storms in low frequency signals, which may help distinguish them...

Separating Earthquakes from Explosions Using Seismic Data

Last week, North Korea tested what it claimed to be a hydrogen bomb, or as the North Korean government declared in its official statement,...

New gravity dataset will help unveil the Antarctic continent

A unique dataset of gravity anomalies has been released for Antarctica representing a significant step forward in the investigation of the largest ice-covered continent...

Geologic formation could hold clues to melting glacier floodwaters

Geologists investigating an unusual landform in the Wabash River Valley in southern Illinois expected to find seismic origins, but instead found the aftermath of...

Physics of booming and burping sand dunes revealed

Avalanching sand from dune faces in Death Valley National Park and the Mojave Desert can trigger loud, rumbling "booming" or short bursts of "burping"...

Seismic Signals Reveal Changes in Water Release from Glaciers

Tidewater glaciers flow from frigid mountains and ice sheet interiors down through ice-carved valleys and terminate in the sea, within fjords. Beneath the glaciers,...

Scientists track speed of powerful internal waves

For the first time researchers directly measured the speed of a wave located 80 meters below the ocean's surface from a single satellite image....

New NGA global map advances R&D in geophysics and nonproliferation

A team of researchers led by scientists at the National Geospatial-Intelligence Agency published a new map Sept. 1 that characterizes the Earth's radioactivity and...

Satellites peer into rock 50 miles beneath Tibetan Plateau

Gravity data captured by satellite has allowed researchers to take a closer look at the geology deep beneath the Tibetan Plateau. The analysis, published in...

NASA explains why June 30 will get extra second

The day will officially be a bit longer than usual on Tuesday, June 30, 2015, because an extra second, or "leap" second, will be...

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