Jim McQuaid előadásai

Invitation

We would like to invite everybody to the next lectures and discussions:

Professor Jim McQuaid (University of Leeds, UK)
The impact of volcanic eruptions on local, regional and global scales

Venue: Mauritz Béla lecture room (-1.524) ELTE, Budapest, Pázmány Péter sétány 1/c.
Date: 19 November, 2018.11:30-12:30 am

High altitude mineral dust and ice clouds

Venue: Mauritz Béla lecture room (-1.524) ELTE, Budapest, Pázmány Péter sétány 1/c.
Date: 19 November, 2018. 4:00-5:00 pm


Geoengineering the Climate

Venue: Lecturer hall (1st floor) MTA, VEAB, Veszprém, Vár u. 37.
Date: 20 November, 2018. 5:30-6:30 pm


We are looking forward to seeing everyone who is interested!


For more information: mihaly.posfai@gmail.com and cszabo@elte.hu

Details:
European Association of Geochemistry, Distinguished Lecture Tour 2018
Distinguished Lecturer, Dr. Jim McQuaid, University of Leeds, UK

Dr Jim McQuaid is based in the School of Earth and Environment at the University of Leeds. His research is primarily focused upon observations of the composition of both gas phase and aerosol species in the atmosphere. Over the last 20 years he has participated in a large number of research campaigns both ground-based and airborne across the globe. He has been involved in studying a range of diverse topics including long range transport of pollutants across the Atlantic and over Europe, emissions from biomass burning activities in South and West Africa as well as from the Amazon and more recently the distribution of ice nucleating particles in remote regions. He is also the atmospheric scientist on Black and Bloom, which is a major 5 year program funded by the UK Natural Environment Research Council. This highly cross discipline project brings together geochemists, glaciologists, remote sensing specialists and microbiologists to tackle the questions surrounding the accelerating melt of the Greenland Ice Sheet caused by the noted increase in surface darkening over the last 30 years. In 2013, Jim sailed across the US from Cape Canaveral, Florida, to the Pacific coast in Monterey, California, in a 60 metre long airship as one of the team for a BBC TV series. Operation Cloud Lab: Secrets of the Skies is “one of television’s most ambitious experiments on the atmosphere” (BBC Press release). He also provides scientific and technical advice to a number of broadcasting production teams, including making clouds as part of Richard Hammond’s Wild Weather series, and has contributed to BBC iWonder (cloud weighing and perfect sunrise). He is a regular contributor to the weekly Paul Hudson Weathershow, which is broadcast across five local radio stations in the UK.

Lectures (Budapest, ELTE, TTK)
The impact of volcanic eruptions on local, regional and global scales 
Major historic eruptions such as Krakatoa, Laki and Tambora had huge implications across the planet far beyond their immediate impact on the local region.  These will be described and we will discuss how they have helped our understanding of nature’s power.  More recently, eruptions such as Pinatubo and El Chichón have allowed us to test our understanding of the global atmosphere whilst significant financial losses associated with the eruption of the Icelandic volcano, Eyjafjallajökull in 2010 have resulted in significant focus in our efforts to monitor and predict such eruptions including systems to monitor post eruption allowing impacted airspace to reopen as soon as possible.

High altitude mineral dust and ice clouds
High in the atmosphere supercooled water can exist in the liquid phase well below 0 °C, in fact ultra pure water does not freeze until around -38 °C.  In order to freeze, water droplets need a helping hand in the form of a tiny fragment of material known as an ice nucleating particle (INP).  But what exactly is an INP?  What is it made of?  Recent studies have started to help us unpick what makes for a good INP. 

Lecture (Veszprém, MTA, VEAB)
Geoengineering the Climate 
Iron fertilisation of the oceans, injecting particles high into the atmosphere and other methods that might reduce the effects of climate change. However their interactions go far beyond that for which they are designed, we must fully understand the whole cycle of such actions before committing ourselves to them.