VIRTUAL MEETING | Yorkshire Local Centre Annual PhD Showcase
LOCATION
The Annual PhD Showcase consisted of three speakers. Details can be seen below.
FIRST SPEAKER: Yvan Rome
The Last Deglaciation: Let the climate shake
It is a common misconception to assume that the Last Ice Age, stretching from 115 000 to 12 000 years before our age, was a period of global and permanent cold climate. In reality, it experienced dramatic fluctuations and disruptions of the climate, especially at its termination which is referred to as the Last Deglaciation. Abrupt climate changes have been studied for decades and yet their mechanisms remain a mystery. Through the development of more powerful and accurate climate models we are now able to reproduce past climate simulations to try to understand the chain of events that lead to such phenomenon. This expertise is a key resource when it comes to understanding and predicting the contemporary climate imbalance.
SECOND SPEAKER: Paloma Trascasa-Castro
El Niño–Southern Oscillation: World echoes from the (not so) Pacific Ocean
El Niño – Southern Oscillation (ENSO) is the dominant mode of interannual climate variability in the tropics. Anomalously warm or cold sea surface temperatures in the equatorial Pacific Ocean affect climate conditions in remote parts of the world, hence it is called a teleconnection. From crop yields to floods, from coral reefs to vector borne diseases, from the ocean to the stratosphere, the scope of ENSO impacts is such that understanding how it works is one of the focus topics of the climate research community. 100 years of research on ENSO allow us today to monitor and forecast it several months ahead. Climate conditions such as those during an ENSO event have been proven to play a role in the history of human civilization, and it will continue to do so in the light of climate change.
THIRD SPEAKER: Vania Lopez Garcia
The Lower Atmosphere Over The Central Arctic Ocean
Arctic climate is changing rapidly, warming at 2-3 times the global average rate, with dramatic reductions in sea ice volume and summer minimum extent. It is approaching a state that has been termed the ‘new Arctic’ – in which the Arctic Ocean is seasonally ice free and winter sea ice is all thin, first year ice—within a few decades. Climate models fail to reproduce the observed rate of sea ice loss accurately; they also show much greater scatter in other atmospheric properties between different models in the Arctic than at lower latitudes. One key model weakness is the representation of atmospheric boundary-layer structure and turbulent interactions with both the surface and low-level clouds, climate and weather forecast numerical models typically fail to reproduce it correctly. The Arctic atmospheric boundary layer is dominated by two very different regimes: near-neutral stability, capped by an elevated temperature inversion during summer, and stably stratified with an inversion extending to the surface. Both regimes present challenges to numerical models, and neither is well understood.
UPDATE: Registration has now closed. Please email yorkshire@rmets.org to register for this meeting and to receive the joining link.
This event was 45 minutes long consisting of three speakers who presented for a total of 12 minutes with approximately 3 minutes for questions each.
VIRTUAL MEETING | Yorkshire Local Centre Annual PhD Showcase Recording
The Annual PhD Showcase consisted of three speakers. Details can be seen below.
FIRST SPEAKER: Yvan Rome
The Last Deglaciation: Let the climate shake
It is a common misconception to assume that the Last Ice Age, stretching from 115 000 to 12 000 years before our age, was a period of global and permanent cold climate. In reality, it experienced dramatic fluctuations and disruptions of the climate, especially at its termination which is referred to as the Last Deglaciation. Abrupt climate changes have been studied for decades and yet their mechanisms remain a mystery. Through the development of more powerful and accurate climate models we are now able to reproduce past climate simulations to try to understand the chain of events that lead to such phenomenon. This expertise is a key resource when it comes to understanding and predicting the contemporary climate imbalance.
SECOND SPEAKER: Paloma Trascasa-Castro
El Niño–Southern Oscillation: World echoes from the (not so) Pacific Ocean
El Niño – Southern Oscillation (ENSO) is the dominant mode of interannual climate variability in the tropics. Anomalously warm or cold sea surface temperatures in the equatorial Pacific Ocean affect climate conditions in remote parts of the world, hence it is called a teleconnection. From crop yields to floods, from coral reefs to vector borne diseases, from the ocean to the stratosphere, the scope of ENSO impacts is such that understanding how it works is one of the focus topics of the climate research community. 100 years of research on ENSO allow us today to monitor and forecast it several months ahead. Climate conditions such as those during an ENSO event have been proven to play a role in the history of human civilization, and it will continue to do so in the light of climate change.
THIRD SPEAKER: Vania Lopez Garcia
The Lower Atmosphere Over The Central Arctic Ocean
Arctic climate is changing rapidly, warming at 2-3 times the global average rate, with dramatic reductions in sea ice volume and summer minimum extent. It is approaching a state that has been termed the ‘new Arctic’ – in which the Arctic Ocean is seasonally ice free and winter sea ice is all thin, first year ice—within a few decades. Climate models fail to reproduce the observed rate of sea ice loss accurately; they also show much greater scatter in other atmospheric properties between different models in the Arctic than at lower latitudes. One key model weakness is the representation of atmospheric boundary-layer structure and turbulent interactions with both the surface and low-level clouds, climate and weather forecast numerical models typically fail to reproduce it correctly. The Arctic atmospheric boundary layer is dominated by two very different regimes: near-neutral stability, capped by an elevated temperature inversion during summer, and stably stratified with an inversion extending to the surface. Both regimes present challenges to numerical models, and neither is well understood.
UPDATE: Registration has now closed. Please email yorkshire@rmets.org to register for this meeting and to receive the joining link.
This event was 45 minutes long consisting of three speakers who presented for a total of 12 minutes with approximately 3 minutes for questions each.