Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Tropical cloud ‘dust’ could hold the key to climate change

27.10.2005


Scientists at the University of Manchester will set off for Australia this week to undertake an in-depth study of tropical clouds and the particles sucked up into them to gain further insight into climate change and the depletion of the ozone layer.



The research will take place in Darwin, Australia as part of a major international field experiment to study transport by tropical thunderstorms and the type of high-altitude clouds they produce.

Manchester’s research will focus on the analysis of tiny particles, known as aerosols, which determine cloud properties. Aerosols include materials like desert dust, sea salt and other organic materials which are drawn up into the clouds from the earth’s surface. These particles control the physics of the clouds and can have a dramatic effect on the climate.


The aim of the experiment is to gain a better understanding of the kind of aerosol particles and gases which are injected by the storms into the Tropical Tropopause Layer, a poorly-understood region of the atmosphere sandwiched between the main tropical weather systems and the stratosphere above.

Data will be collected by two planes carrying high-tech monitoring equipment at different altitudes through a series of storms over a four month period. The data will then be used to create computer models of the clouds and the chemicals contained within them.

Professor Geraint Vaughan, of the University’s School of Earth, Atmospheric and Environmental Sciences, who will lead the study, said: “The tropics drives global atmospheric circulation, so it is extremely important for us to understand how atmospheric processes operate there.

“Deep thunderstorms are a major feature of tropical weather, but their overall effect on the transport of material to high levels is poorly understood. This is important because it helps determine the composition of the stratosphere and the kinds of clouds which form high in the atmosphere.”

He added: “If we can understand the nature and composition of these clouds, we will be able to use this information to help predict future climate change.”

The research is being undertaken as part of the Natural Environment Research Council’s (NERC) £1 million ACTIVE project. The research team will use the Australian Egrett aircraft and the NERC’s Dornier aircraft to measure chemical and aerosol which are drawn into and expelled from tropical storms. The measurements will be interpreted using cloud-scale and large-scale modelling to distinguish the contribution of different sources to the Tropical Tropopause Layer.

ACTIVE is a NERC-funded consortium project involving the Universities of Manchester, Cambridge and, York (UK); DLR and Forschungszentrum Julich (Germany); York University (Canada), Bureau of Meteorology (Australia) and Airborne Research Australia.

Simon Hunter | alfa
Further information:
http://www.manchester.ac.uk/news

More articles from Ecology, The Environment and Conservation:

nachricht How does the loss of species alter ecosystems?
18.05.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

nachricht Excess diesel emissions bring global health & environmental impacts
16.05.2017 | International Institute for Applied Systems Analysis (IIASA)

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

How herpesviruses win the footrace against the immune system

26.05.2017 | Life Sciences

Water forms 'spine of hydration' around DNA, group finds

26.05.2017 | Life Sciences

First Juno science results supported by University of Leicester's Jupiter 'forecast'

26.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>