Making measurements from the space and looking to the skies has hugely enhanced our understanding of the Earth, it’s surface processes and its movement in space. This short episode of GeoCinema Online takes you through some of the great technological developments in the Earth and planetary sciences! Looking Down a Well: A Brief History of Geodesy Geodesy is a field of study that deals with ...[Read More]
Geosciences Column: Tracing Toba
Large volcanic eruptions have a significant impact on the Earth’s climate as aerosols (including sulphur dioxide and water vapour), together with ash are released into the atmosphere and increase the amount of sunlight reflected back into space (the albedo). This increase in reflectance (or decrease in energy absorption) can cause widespread climatic cooling, known as a ‘volcanic winter’. However, ...[Read More]
Imaggeo on Mondays: Vanishing Lakes and Dry Arctic Landscapes
The Koukdjuak Plains (south-west Baffin Island, Canada) form a vast postglacial marine plain that borders the Foxe Basin, an area that has been progressively uplifted due to glacio-isostatic rebound following the end of the last glaciation about 6600 years ago. The weight of glaciers on the Earth’s crust causes the ground to be depressed, which, once the glacier melts, bounces back (at a geologica ...[Read More]
GeoCinema Online: Hazards
In this week’s GeoCinema Online, we’re taking you to regions of the world that have experienced large eruptions in both the recent and distant past. These films take you through what it’s like to live in an active volcanic area or fault zone, from dealing with disasters, to how scientists are working towards better methods of earthquake and eruption forecasting: Mayon: The Volcano Princess I ...[Read More]