Navigation Links
Envisat Captured Breath of Volcano

Indonesias Mount Gamkonora volcano is spewing hot ash and smoke into the air, seen in the image taken by the MERIS instrument aboard ESAs satellite Envisat, causing more than 8000 people to be evacuated amid fears of an imminent eruption, according to officials.

Officials raised the alert to the highest level on Tuesday after the volcano, located in the eastern province of North Maluku, started spitting out flaming material, indicating magma was approaching the craters surface making an eruption more likely, Saut Simatupang of Indonesia's Vulcanological Survey told Reuters news agency.

The 1635m volcano, located about 2400 km northeast of Jakarta, began releasing smoke and ash on Saturday and spewed it as high as 4000m on Monday. Mount Gamkonora is the highest peak on Halmahera Island.

Indonesia is located within the Pacific Ring of Fire, a continuous line (40 000 km long) of volcanoes and fault lines circling the edges of the Pacific Ocean, and has more than a hundred active volcanoes within its territory.

The majority of the 1500 active volcanoes on the Earth's surface, of which around 50 erupt each year, are located along the Pacific 'Ring of Fire'. At least 500 million people live close to an active volcano.

As world population increases, so does the potential threat from every eruption. Although there is no way ground-based monitoring can be carried out on all volcanoes across the globe, space-based monitoring helps identify the volcanoes presenting the greatest danger.

Satellite radar, such as that aboard Envisat and ERS-2, allows scientists to track small changes in the Earths movement that improves their ability to predict volcanic eruptions.

Synthetic Aperture Radar Interferometry, InSAR for short, involves mathematically combining different radar images, acquired from as near as possible to the same point in space at different times, to create digital elev ation models and reveal otherwise undetectable changes occurring between image acquisitions.

Combined radar and optical data acquired from space are also very useful when an eruption begins. The synoptic view taken from optical and radar instruments aboard Envisat can simultaneously show the ash plume, the ash falling area, the lava streams and the volcanic cone shrinkage or expansion. Atmospheric sensors are used to identify the gases and aerosols released by the eruption, and quantify their wider environmental impact.

Having access to these data over long periods of time is important for scientists to identify and analyse long-term trends and changes. ESA now has a 16-year archive of homogenous data thanks to the continuity of satellites ERS-1, ERS-2 and Envisat. Envisat and ERS-2, with a difference in overpass time of 30 minutes, are continually adding to the archive.

To boost the use of Earth Observation (EO) data at volcanic observatories, ESA has started to monitor volcanoes worldwide within the framework of the Agency's Data User Element programme.

The Globvolcano project, started in early 2007, will define, implement and validate information services to support volcanological observatories in their daily work by integration of EO data, with emphasis on observation and early warning.


'"/>




Related medicine news :

1. Drug May Make Breathing Easier for Millions
2. Breathing Cancer Causing Compounds During Pregnancy Found To Affect Offspring
3. Sugar-Free Yogurt Can Stop Bad Breath
4. Another Breather For People At Atherosclerotic Risk
5. Shortness Of Breath A More Reliable Indicator Of High Risk Cardiac Disease
6. Shortness Of Breath An Important Indicator Of Heart Attack
7. Sensor Can Detect "Unhealthy" Molecules In Breath
8. Fear Of Flying Can Be Overcome By Deep Breathing
9. Breath to Reveal Presence of Breast Cancer
10. Treating Bad Breath Yet A Challenge
11. Sleep Apnea Patients Benefit from Breathing Mask
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/26/2017)... TX (PRWEB) , ... June 26, 2017 , ... ... their coding staff, and consumers are seeing lots of red these days. According ... contain inaccurate charges that result from medical coding errors(1). Some studies point to ...
(Date:6/26/2017)... (PRWEB) , ... June 26, 2017 , ... New patients ... from Dr. Angela Cotey, with or without a referral. Dr. Cotey is a trusted ... of this preferred tooth replacement option. , Patients with missing teeth in Fitchburg, WI, ...
(Date:6/25/2017)... Aliso Viejo, CA (PRWEB) , ... June 24, 2017 , ... Create a feel-good lyric ... place presets above footage and sound in the timeline and write in the lyrics to ... screen before flying back out. Each line of the text can be added modularly for ...
(Date:6/25/2017)... ... , ... An increase in wetter weather in the Northern California area naturally ... a humdinger of an allergy season. A relief from drought conditions is most welcome, ... and weed pollen. , “Our patients have been reporting the typical allergy season ...
(Date:6/25/2017)... ... June 25, 2017 , ... With a heatwave currently bearing down on Northern California ... at the pool. Being swimsuit ready is easy with laser hair removal. , The ... can be a burdensome routine when all you want to do is get out, dive ...
Breaking Medicine News(10 mins):
(Date:6/7/2017)... GAITHERSBURG, Md. , June 7, 2017  Novavax, Inc., ... the second of two Phase 2 trials of its RSV ... women of child bearing age have been published in the ... this publication have been shared in prior scientific conferences). The ... trial in April 2014. Novavax is developing the RSV F ...
(Date:6/2/2017)...  NxStage Medical, Inc. (Nasdaq:  NXTM), a leading medical technology company ... demonstrating positive biochemical outcomes related to more frequent hemodialysis ... will be presented at the ERA-EDTA Congress being held ... . The research was conducted by ... Europe (KIHDNEy) Cohort team ...
(Date:5/29/2017)... Israel, May 29, 2017  Cellect Biotechnology Ltd. (NASDAQ: ... technology which enables the functional selection of stem cells, ... for the first quarter ended March 31 st , ... our accomplishments in the first quarter of 2017," said ... quarter, we announced the treatment of the first blood ...
Breaking Medicine Technology: