Past events

21
Mar
2019

Lessons from the Sudbury impact structure for the Hadean Earth »

1pm 21 March 2019

We know little about the Hadean Earth but most agree that the entire inner Solar System was pummeled by impacting bolides. None of the terrestrial Hadean impact basins are preserved but by analogy with our neighbours, the Earth must have featured basins of up to thousands of kilometers across. Is there any hope of...

20
Mar
2019

A Last Interglacial perspective on future rates of sea-level rise »

12pm 20 March 2019

Sea-level rise is among the greatest risks that arise from anthropogenic global climate change. It is receiving a lot of attention, among others in the IPCC reports, but major questions remain as to the potential contribution from the great continental ice sheets. In recent years, some modelling work has suggested...

14
Mar
2019

What have we learned about Earth from space gravity missions? »

1pm 14 March 2019

In 2002 the Gravity Recovery and Climate Experiment (GRACE) mission was launched, with the specific aim of measuring Earth’s gravity field and its variation with time, with unprecedented accuracy. The mission was an outstanding success, with impacts in a broad range of disciplines including oceanography,...

13
Mar
2019

Inverting the amplitude and source of Meltwater Pulse 1A using sea-level constraints »

12pm 13 March 2019

The source of Meltwater Pulse 1A (MWP-1A), the largest and most rapid global sea-level rise event during the last deglaciation, is important for understanding large ice sheet stability, global sea-level budget and climate change during last deglaciation. However, the source of this event is still debated,...

07
Mar
2019

Climate tipping points: implications of paleo-climate records »

1pm 7 March 2019

Important lessons regarding current and future climate change trends can be derived from the paleo-climate record. Particularly from abrupt events such as the Oldest dryas (~16 kyr), Older dryas (~14 kyr), Younger dryas (12.9–11.7 kyr) and the ~8.2 kyr Laurentian ice melt event all of which...

06
Mar
2019

Is XRF core scanning a viable method for coral palaeoclimate temperature reconstructions? »

11.30am 6 March 2019

The use of X-Ray Fluorescence (XRF) Core Scanning for continuous high-resolution analysis of Sr/Ca in corals is investigated here as a new method for analyzing coral material. Corals are valuable archives for generating high resolution palaeoclimate records of sea surface temperatures of the tropical oceans, but...

04
Mar
2019
28
Feb
2019

Crater Counting using Machine Learning »

1pm 28 February 2019

Crater counting provides a relative timeline of the geological history of a planetary surface [1]. If an absolute age can be accurately attributed to a surface, the crater counting timeline can be calibrated, providing specific age information for a variety of features. This is available for the moon due to the...

27
Feb
2019

East Asia northeastern monsoon variability over the past two millennia »

27 February 2019

East Asia northeastern monsoon (EANM) is the downstream component of East Asia winter monsoon (EAWM) that influences the socio-economic activity of billions of people. Most detailed variations of past East Asia summer monsoon (EASM) have been reconstructed based on rain-bearing signatures retrieved by highly...

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