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:6/27/2016)... ... June 27, 2016 , ... ... its strategic partnership with Connance, a healthcare industry leader providing predictive analytics ... proprietary technology combine to provide health systems, hospitals and ambulatory surgical centers ...
(Date:6/26/2016)... ... , ... Pixel Film Studios Released ProSlice Levels, a Media Slicing Effect ... a whole new perspective by using the title layers in ProSlice Levels to ... ProSlice Levels contains over 30 Different presets to choose from. FCPX users ...
(Date:6/25/2016)... ... June 25, 2016 , ... Austin residents seeking Mohs surgery ... of Mohs Surgery and to Dr. Russell Peckham for medical and surgical dermatology. , ... for skin cancer. The selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a method ... —Johnson is one of the first doctors to perform the treatment. Orthobiologics are ...
(Date:6/24/2016)... ... , ... June 19, 2016 is World Sickle Cell Observance Day. In an ... of holistic treatments, Serenity Recovery Center of Marne, Michigan, has issued a ... Cell Disease (SCD) is a disorder of the red blood cells, which can cause ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... June 24, 2016 According to ... Type (Standard Pen Needles, Safety Pen Needles), Needle Length ... Growth Hormone), Mode of Purchase (Retail, Non-Retail) - Trends ... report studies the market for the forecast period of ... USD 2.81 Billion by 2021 from USD 1.65 Billion ...
(Date:6/23/2016)... , June 23, 2016 Research and ... Global Market - Forecast to 2022" report to their ... treatment method for the patients with kidney failure, it replaces ... fluid from the patient,s blood and thus the treatment helps ... and chloride in balance. Increasing number of ...
(Date:6/23/2016)... 2016 Research and Markets has announced ... Analysis 2016 - Forecast to 2022" report to their ... contains up to date financial data derived from varied research ... trends with potential impact on the market during the next ... which comprises of sub markets, regional and country level analysis. ...
Breaking Medicine Technology: