Articles tagged "research"

tornadoes shifting east f

Tornado Alley shifting east

Meteorologist Dr. Harold Brooks appeared on AMHQ recently, speaking about Tornado Alley and his recent study about spatial trends in United States tornado frequency. While it's evident that tornadoes are shifting east, the reasons why this is happening are still...

December 02, 2018

tsunami by diego marcondes

'True polar wander' and Earth's ice ages

Rice University geophysicists have determined Earth shifted relative to its spin axis within the past 12 million years, which caused Greenland to move far enough toward the north pole to kick off the ice age that began about 3.2 million years ago. The study is based...

December 02, 2018

hiawatha crater impact diameter image

Large asteroid impact crater found under Hiawatha Glacier, Greenland

An international team of scientists announced a remarkable discovery of one of the youngest large asteroid impact craters on Earth. The crater is buried under 1 km (0.62 miles) of ice in a remote area of northwest Greenland. The finding was published in the November...

November 16, 2018

lightning solar activity

Study: How Sun influences lightning and thunder activity on Earth

Japanese researchers have taken the first steps to understand how the Sun's rotational cycle influences lightning activity on Earth. The answers were found in diaries dating back to the 1700s. "It is well known that long-term - centennial to...

July 18, 2018

kirishima sakurajima japan

Deep subterranean connection found between Kirishima and Sakurajima volcanoes, Japan

A study published recently in Scientific Reports presets geodetic evidence for interconnectivity between Aira and Kirishima magmatic systems in Japan. This is the first study to confirm that radical changes of one volcano in southern Japan were the direct result of...

July 16, 2018

northern hemisphere polar jet stream

Study helps explain why jet stream stalls out over regions, causing extreme weather events

A new study published recently in Science offers an explanation for a mysterious and sometimes deadly weather pattern in which the jet stream stalls out over a region. The discovery is expected to help predict long-term patterns, including which areas may see more...

June 24, 2018

petroglyph

Study of Earth's magnetic field reversals reveals 405 000-year climate cycle

Gravitational tugs from Jupiter and Venus slightly elongate Earth's orbit every 405 000 years, an amazingly consistent pattern that has influenced our planet's climate for at least 215 million years. This pattern allows scientists to more precisely date...

May 08, 2018

rosby waves sun

Rossby waves discovered on and inside the Sun

Scientists have discovered planetary waves of vorticity on and inside the Sun similar to those that significantly influence weather on Earth. Rossby waves are a natural phenomenon in the atmospheres and oceans of planets that form in response to the rotation of the...

May 08, 2018

natural cycles formation of supercontinents

Natural cycles: A link between formation of supercontinents and strength of ocean tides

A new study suggests there is a likely link between the cyclic strengthening and weakening of ocean tides over tens of millions of years and another, longer cycle - the formation of Earth's supercontinents every 400 to 600 million years. The new research...

April 12, 2018

calbuco eruption 2015

Volcanic eruptions during Roman times plunged Eurasia into hunger and disease

A joint research project of the Chronology Laboratory of the Finnish Museum of Natural History and Natural Resources Institute Finland (Luke) suggests that large volcanic eruptions in the years 536 and 541–544 CE resulted in unusually gloomy and cold period...

April 11, 2018

featured magnetic field oceans esa

Swarm tracking changes in oceans' magnetic field in more detail that ever before

ESA’s Swarm mission is continually yielding more insight into how our protective shield is generated, how it behaves and how it is changing. Adding yet another string to its bow, Swarm is now tracking changes in the magnetic field produced in the oceans in...

April 11, 2018

28 4 2014 at 4 58 z

Solar tornadoes not rotating after all, study shows

According to a team of European scientists, solar tornadoes are not rotating after all. Their new analysis of these gigantic structures, each one several times the size of the Earth, indicates that they may have been misnamed because scientists have so far only been...

April 06, 2018

investigating rariphotic

Researchers define a new ocean-life zone, name it the Rariphotic

Smithsonian scientists have recently defined a new ocean-life zone, comprising of reef fishes, including numerous new species, that live well below shallow coral reefs. The new zone was named Rariphotic. The new zone was defined based on the unique fish fauna...

April 04, 2018

reef study f

REEF - A new measure of earthquake ruptures

A team of seismologists has developed a new measurement of seismic energy release that can be applied to large earthquakes. Called the Radiated Energy Enhancement Factor (REEF), it provides a measure of earthquake rupture complexity that better captures variations...

April 04, 2018

featured volcano erupting 3d image topic

World's first 3D thermal image of volcano

Scientists from the University of Aberdeen have created the world's first 3D thermal image of an active volcano. The spectacular 3D image of Stromboli in Italy was made using high-precision cameras which are mounted to an aerial drone. The team of geoscientists...

April 02, 2018

ireland rain featured 2

Ireland's recent decade found to be the wettest in over 300 years

With a 10-year average rainfall of almost 1 990 mm (78.3 inches) per year, the decade from 2006 to 2015 was Ireland’s wettest on record. This compares with a long-term 300-year decadal average of 1 080 mm (42.5 inches) per year, and 940 mm (37 inches), the...

March 27, 2018

8flood australia queensland

Major flooding cyclical rather than random, new research says

University of Newcastle's (UON) fresh research found further evidence to support the notion that severe flooding events occur cyclically, challenging the widely approved assumption that floods occur randomly. The study is now raising questions about the...

March 23, 2018

messian salinity crisis map

Evidence of one of the largest floods in Earth’s history in the central Mediterranean

An international team of scientists has uncovered evidence of one of the largest floods in Earth's history in the central Mediterranean seafloor. The flood, known as the Zanclean flood, is thought to have ended the Messinian Salinity Crisis (MSC), a period...

March 21, 2018

cosmic rays

How cosmic rays produce clouds and influence Earth's climate

A new study published in Nature Communications this week reveals how atmospheric ions, produced by the energetic cosmic rays raining down through the atmosphere, helps the growth and formation of cloud condensation nuclei - the seeds necessary for forming clouds in...

December 21, 2017

earth

Earth’s vibrational "hum" - frequencies at which our planet naturally vibrates measured

Scientists have long known earthquakes can cause the Earth to vibrate for extended periods of time. However, in 1998 a research team found the Earth also constantly generates a low-frequency vibrational signal in the absence of earthquakes. Since then, seismologists...

December 08, 2017

unearthing the underground effects of earthquakes and volcanoes f

Unearthing the underground effects of earthquakes and volcanoes

Japanese researchers find predictive potential in underground changes associated with 2016 Kumamoto earthquake and subsequent volcanic eruptions. Most of what we know about earthquakes and volcanoes is based on what we can observe at the Earth's surface....

December 08, 2017

K2 18b

Two Super-Earths around red dwarf K2-18

New research using data collected by the European Southern Observatory (ESO) has revealed that a little-known exoplanet called K2-18b could well be a scaled-up version of Earth. Just as exciting, the same researchers also discovered for the first time that the...

December 06, 2017

an all sky map

Astronomer's map reveals location of mysterious fast-moving gas

An Australian scientist has created the most detailed map ever of clouds of high-velocity gas in the Universe around us. The map covers the entire sky and shows curious clouds of neutral hydrogen gas that are moving at a different speed to the normal rotation of the...

December 05, 2017

himalaya koshi koshi

Earthquakes in Himalaya bigger because tectonic plates collide faster

Earthquakes that happen in densely populated mountainous regions, such as the Himalaya, spell bigger earthquakes because of a fast tectonic-plate collision, according to a new study in Earth and Planetary Science Letters. Researchers from Geophysical Fluid Dynamics...

December 04, 2017

magma as rubber sheet

When magma prevents volcanic eruptions

Why does the floor of calderas lift disproportionately without erupting? Researchers from UNIGE and Roma Tre used thermal and experimental models to explain one of the least-understood processes in volcanology: 'Caldera resurgence' A spectacular proof of our...

December 03, 2017

mantle flows

Mass of warm rock is rising beneath New England

Slowly but steadily, an enormous mass of warm rock is rising beneath part of New England, although a major volcanic eruption isn't likely for millions of years, a Rutgers University-led study suggests. The research is groundbreaking in its scope and challenges...

December 02, 2017

north texas earthquakes old faults

North Texas earthquakes occurring on faults not active for 300 million years

Study by Beatrice Magnani, USGS and other SMU scientists shows recent seismicity in Fort Worth Basin occurred on faults not active for 300 million years. The study indicates reactivation of long-dormant faults as a consequence of waste fluid injection. Recent...

December 01, 2017

toba caldera

Time between world-changing volcanic super-eruptions less than previously thought

After analyzing a database of geological records dated within the last 100 000 years, a team of scientists from the University of Bristol has discovered the average time between so-called volcanic super-eruptions is actually much less than previously thought....

November 30, 2017

parkfield segment san andreas

Parkfield segment of San Andreas fault can host large earthquakes

Although magnitude 6 earthquakes occur about every 25 years along the Parkfield Segment of the San Andreas Fault, geophysical data suggest that the seismic slip induced by those magnitude 6 earthquakes alone does not match the long-term slip rates on this part of...

November 30, 2017

Sarychev

High-latitude volcanic eruptions also have global impact

Volcanic eruptions always seize the attention of climate scientists, because the sulfate aerosols formed in the volcanic plumes may stay months to years in the stratosphere - the second layer of the Earth's atmosphere - resulting in the increase of radiation...

November 29, 2017

winter polar vortex of titan

Unexpected atmospheric vortex behavior on Saturn’s moon Titan

A new study, led by a University of Bristol earth scientist, has shown that recently reported unexpected behavior on Titan, the largest moon of Saturn, is due to its unique atmospheric chemistry. Titan’s polar atmosphere recently experienced unexpected and...

November 29, 2017

tornado forecasting

Breakthrough in tornado short-term forecasting

When mere seconds of storm warning could mean the difference between harm or safety, two researchers with Western University ties have developed a tornado-prediction method they say could buy as much as 20 minutes more warning time. These radar-based calculations...

November 29, 2017

icecube experiment f

IceCube experiment measures Earth's ability to absorb neutrinos

For the first time, a science experiment has measured Earth's ability to absorb neutrinos - the smaller-than-an-atom particles that zoom throughout space and through us by the trillions every second at nearly the speed of light. The experiment was achieved with...

November 24, 2017

movement of seismic waves

Mysterious deep-Earth seismic signature explained

New research on oxygen and iron chemistry under the extreme conditions found deep inside the Earth could explain a longstanding seismic mystery called ultralow velocity zones. The findings could have far-reaching implications on our understanding of Earth's...

November 24, 2017

thunderstorms create radioactivity

Thunderstorms create radioactivity

A new study, published this week in Nature, shows that thunderstorms can also produce radioactivity by triggering nuclear reactions in the atmosphere. This may sound like the plot of a blockbuster science fiction disaster. But in reality, it’s nothing to worry...

November 23, 2017

kaolinite

New insights into processes that cause volcanism

The first observation of a super-hydrated phase of the clay mineral kaolinite could improve our understanding of processes that lead to volcanism and affect earthquakes. In high-pressure and high-temperature X-ray measurements that were partly conducted at DESY...

November 23, 2017

geomagnetic storm

Plasma space tornadoes let high-energy particles into near-Earth space

Researchers using NASA's Magnetospheric Multiscale mission (MMS) discovered tornado-like swirls of plasma create a magnetosphere tumultuous enough to let harmful high-energy particles from the Sun slip into near-Earth space. The discovery is important for...

November 23, 2017

solar flare pulse

NASA detects solar flare pulses at Sun and Earth

When our Sun erupts with giant explosions—such as bursts of radiation called solar flares—we know they can affect space throughout the solar system as well as near Earth. But monitoring their effects requires having observatories in many places with many...

November 20, 2017

shift in ozone trends

Three decades of measurements show ozone's ups and downs

Climate scientists studying three decades of ozone measurements from seven satellites see a positive trend in global recovery after international efforts to curb ozone-depleting substances. The part of Earth’s atmosphere with high concentrations of ozone gas...

November 20, 2017

planet ross 128b

Closest temperate world orbiting quiet star discovered

A temperate Earth-sized planet has been discovered only 11 light-years from the Solar System by a team using ESO’s unique planet-hunting HARPS instrument. The new world has the designation Ross 128 b and is now the second-closest temperate planet to be...

November 19, 2017