GeoLog

greenhouse gases

Imaggeo on Mondays: Air samples from afar

Imaggeo on Mondays: Air samples from afar

I’ve taken many photos on fieldwork, everywhere from Malaysia to Antarctica but this particular photo was taken in my ‘home’ lab at the University of East Anglia (UEA) in Norwich, UK. Atmospheric scientists collect air samples canisters such as these from around the world: from high altitude research aircraft (such as the Geophysica), long-term measurement time series (such as Ca ...[Read More]

October GeoRoundUp: the best of the Earth sciences from around the web

Carbon dioxide plays a significant role in trapping heat in Earth’s atmosphere. The gas is released from human activities like burning fossil fuels, and the concentration of carbon dioxide moves and changes through the seasons. Using observations from NASA’s Orbiting Carbon Observatory (OCO-2) satellite, scientists developed a model of the behavior of carbon in the atmosphere from Sept ...[Read More]

Imaggeo on Mondays: Low tide at Alexandra Fjord

Imaggeo on Mondays: Low tide at Alexandra Fjord

Today’s post takes us to the far northern reaches of our planet, to a desert like nothing you’ve seen before. This picture is a view to the north across Alexandra Fjord, on the east coast of Ellesmere Island, in the Canadian High Arctic, with Sphynx island in the middle of the fjord. The south shore of Alexandra Fjord includes a polar oasis, an area of tundra vegetation and relatively mild climati ...[Read More]

Imaggeo on Mondays: Fire Watch Constellation

Imaggeo on Mondays: Fire Watch Constellation

Wild fires: raging walls of flames, capable of burning down swathes of pristine, sometimes protected and ancient, landscapes have been causing havoc around the globe. Managing and controlling them is no easy task; they can unexpectedly change their course with the wind and jump across rivers, roads and man-made fire breaks. The significant threat they pose, and damage they can cause, to valuable e ...[Read More]