Navigation Links
Taking the 'pulse' of volcanoes using satellite images
Date:11/5/2012

MIAMI November 5, 2012 -- A new study by scientists at the University of Miami (UM) Rosenstiel School of Marine & Atmospheric Science uses Interferometric Synthetic Aperture Radar (InSAR) data to investigate deformation prior to the eruption of active volcanoes in Indonesia's west Sunda arc. Led by geophysicist Estelle Chaussard and UM Professor Falk Amelung, the study uncovered evidence that several volcanoes did in fact 'inflate' prior to eruptions due to the rise of magma. The fact that such deformation could be detected by satellite is a major step forward in volcanology; it is the first unambiguous evidence that remotely detected ground deformation could help to forecast eruptions at volcanoes.

"Surveying entire volcanic regions using satellite data is of primary importance to the detection of ground deformation prior to the onset of eruptions. If volcanic inflation is observed, it can help us to predict where the next eruption may occur. Moreover, in regions like Indonesia, where volcanoes are prevalent and pose a threat to millions of people, and where ground-based monitoring is sparse, remote sensing via satellite could become a major forecasting tool," said Chaussard.

Analyzing more than 800 InSAR images from the Japanese Space Exploration Agency's ALOS satellite, the team surveyed 79 volcanoes in Indonesia between 2006 and 2009. They detected deformation at six volcanic centers, three of which erupted after the observation period, confirming that inflation is a common precursor of volcanic eruptions at west Sunda volcanoes.

"The notion of detecting deformation prior to a volcanic eruption has been around for a while," said Amelung, who has been studying active volcanoes for 15 years. "Because this region is so volcanically active, our use of InSAR has been very successful. We now have a tool that can tell us where eruptions are more likely to occur."

The team will now study other parts of Indonesia and then in the Philippines, also prone to volcanic activity. They will use data from the Japanese Space Agency's ALOS-2 which will be launched next year.

"The monitoring of changes to the Earth's surface helps us to better predict the onset of volcanic activity, which can have devastating impacts on human life," said Amelung. "Like with earthquakes and tsunamis, however, we cannot predict activity with certainty, but we hope that new tools like satellite remote sensing will help us to gather critical information in near real-time so we can anticipate the risk of eruptions and deploy resources in a timely manner."

This study also reveals that there are regional trends in depths of magma storage. Indonesian volcanoes have magma reservoirs at shallow depths probably due to the tectonic setting of the region, which account for the way the region is deforming. If a volcanic chamber is located close to the surface it is usually associated with a higher risk for significant eruption, thus these observations play a major role in volcanic hazard assessment.


'/>"/>
Contact: Barbra Gonzalez
barbgo@rsmas.miami.edu
305-984-7107
University of Miami Rosenstiel School of Marine & Atmospheric Science
Source:Eurekalert  

Related biology news :

1. An invasive Asian fly is taking over European fruit
2. Young researcher taking fight against global killer to the next level in Vietnam
3. Taking Americas rarest snake back to the woods
4. Taking a hit or 2
5. CU-Boulder-led team finds microbes in extreme environment on South American volcanoes
6. WSU researcher sees how forests thrive after fires and volcanoes
7. Scientists define new limits of microbial life in undersea volcanoes
8. Studies reveal structure of EV71, a virus causing childhood illnesses
9. BYU study: Using a gun in bear encounters doesnt make you safer
10. The shape of things to come: NIST probes the promise of nanomanufacturing using DNA origami
11. Beyond the microscope: Identifying specific cancers using molecular analysis
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Taking the 'pulse' of volcanoes using satellite images
(Date:5/12/2016)... 2016 WearablesResearch.com , a brand of ... results from the Q1 wave of its quarterly wearables ... consumers, receptivity to a program where they would receive ... insurance company. "We were surprised to see ... Michael LaColla , CEO of Troubadour Research, "primarily because ...
(Date:4/28/2016)... April 28, 2016 First quarter 2016:   ... 966% compared with the first quarter of 2015 The ... 589.1 M (loss: 18.8) and the operating margin was 40% (-13) ... Cash flow from operations was SEK 249.9 M (21.2) ... guidance is unchanged, SEK 7,000-8,500 M. The operating margin ...
(Date:4/15/2016)... CHICAGO , April 15, 2016  A ... companies make more accurate underwriting decisions in a ... offering timely, competitively priced and high-value life insurance ... health screenings. With Force Diagnostics, rapid ... and lifestyle data readings (blood pressure, weight, pulse, ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... ... , ... Researchers at the Universita Politecnica delle Marche in Ancona combed medical ... mesothelioma. Their findings are the subject of a new article on the Surviving Mesothelioma ... in the blood, lung fluid or tissue of mesothelioma patients that can help point ...
(Date:6/23/2016)... Md. , June 23, 2016 A person ... from the crime scene to track the criminal down. ... the U.S. Food and Drug Administration (FDA) uses DNA evidence ... Sound far-fetched? It,s not. The FDA ... sequencing to support investigations of foodborne illnesses. Put as simply ...
(Date:6/23/2016)... 23, 2016   EpiBiome , a precision microbiome ... in debt financing from Silicon Valley Bank (SVB). The ... to advance its drug development efforts, as well as ... "SVB has been an incredible strategic partner to ... traditional bank would provide," said Dr. Aeron Tynes ...
(Date:6/23/2016)... NEWPORT BEACH, Calif. , June 23, 2016 /PRNewswire/ ... offering new biological discoveries to the medical community, has ... and co-founder Matthew Nunez . "We ... provide us with the capital we need to meet ... funding will essentially provide us the runway to complete ...
Breaking Biology Technology: