The experts included meteorologists, ground-based, air-borne and Earth-observation specialists and modellers. While scientists and researchers shared information about the unique eruption, monitoring capabilities, modelling and validation techniques, the Volcanic Ash Advisory Centres (VAAC) explained their role and expectations of the scientific community.
Fred Prata, Senior Scientist for Atmosphere and Climate Change at the Norwegian Institute for Air Research, said: "Satellite data are extremely important for volcanic eruptions because they can occur anywhere, anytime, so you need a measurement system that can see the entire globe all the time.
"One missing part of the story is the vertical profile, which lidars in space can provide. ESA will launch a couple of scientific lidar missions in the future, ADM-Aeolus and EarthCARE."
The crucial role of infrared instruments was emphasised in several talks, highlighting EUMETSAT’s upcoming Meteosat Third Generation satellites, being developed by ESA.
"Infrared instruments are absolutely vital because they do not require sunlight so we can see volcanic emissions day or night. They also use a band between 8 and 12 microns, which is key because the particles that cause aviation problems are micron-sized," Prata said.
The presentations on ground-based and air-borne observations and modelling showed very good consistency, also with satellite observations, and it was well recognised all data and information needs to be combined for the best result.
"There has been an unprecedented amount of ground data collected by the European community on this ash cloud, providing a great opportunity to learn more about data-collection processes," said David Schneider, Research Geophysicist at the US Geological Survey, Alaska Volcano Observatory.Philippe Husson, Aviation Weather Forecast Deputy and the Toulouse VAAC Manager for Meteo France, explained that observation requirements of volcanic ash evolved during the eruption to include numbers and expressed the impact this will have on VAACS.
Husson said the threshold figures are not definitive and are being reassessed by aviation authorities. Several factors will be considered, including trial results of real ash in real engines, engine types and rates of ingestion, as flying 10 minutes in high concentration could be equivalent to six hours in weak concentration.
"As the decision was taken quickly there was not a lot of input from scientists, but now there is time to consult them to find out what confidence we can have in the numbers," he added.
A set of recommendations were outlined at the workshop. These will be documented in a joint ESA-EUMETSAT publication and made available online.
"I’m looking forward to the recommendations because the things being discussed here are essential for doing our job," said Jean-Paul Malingreau, Head of Unit Work Programme and Strategy of the Joint Research Centre of the European Commission.
"We also need to assess whether the available and future satellite instruments are sufficient, so recommendations on this can be made available to policymakers to decide what to finance."
Oasis of life in the ice-covered central Arctic
24.10.2016 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
Receding glaciers in Bolivia leave communities at risk
20.10.2016 | European Geosciences Union
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
24.10.2016 | Earth Sciences
24.10.2016 | Life Sciences
24.10.2016 | Physics and Astronomy