New results presented this week at the EGU General Assembly have scientists adjusting the assumptions that have longed acted as bookends on the way we understand the evolution of planetary atmospheres. On one side, researchers have identified a previously unrecognised greenhouse effect that could have warmed the early Earth. On the other, the Curiosity rover has uncovered evidence that Mars has lo ...[Read More]
Geosciences Column: Tag – you’re it! Chasing atmospheric tracers
I’ve been ruminating over the idea for this post for some time now; since last October in fact, when the EGU Twitter Journal Club discussed a paper about tagging (You can find the Storify for the discussion here). Not tagging as in the playground favourite, but the idea of keeping track of certain molecules in your chemical transport model, so you can follow them as they move through the atm ...[Read More]
Imaggeo on Mondays: Light reflection
In this week’s Imaggeo on Mondays, brought to you by the photographer herself, Jacqueline Isabella Gisen (Delft University of Technology, The Netherlands) tells us about light refraction and reflection in a beautiful Autumnal landscape. This shot was taken spontaneously on my way to Clingendael Park in The Hague, Netherlands, for an Autumn’s photography activity on 4 October 2011. It was misty and ...[Read More]
Imaggeo on Mondays: Blue haze
In this week’s Imaggeo on Mondays, brought to you by the photographer himself, Lukas Hörtnagl (University of Innsbruck, Austria) tells us about the ‘blue haze’ or ‘tule fog’ of California’s Sequoia National Park. I was visiting the United States to attend the Fall Meeting of the American Geophysical Union in December 2011 and decided to stay four more weeks to visit some of the National Parks in C ...[Read More]