GeoLog

Atmospheric Sciences

Imaggeo on Mondays: Monitoring the melt

Automatic weather stations (AWS) play a prominent role in making meteorological measurements in remote areas. These measurements can feed into climate models; providing better projections for rainfall, temperature and more. This peculiarly perched piece of equipment is just such a weather station: Out in the Swiss Alps, this AWS is making measurements of temperature, precipitation, wind speed, rel ...[Read More]

Imaggeo on Mondays: Capping a volcano

This is Damavand Volcano, Iran. Its history is one of short bursts of eruptive activity followed by long periods of quiescence and while there are active fumaroles near Damavand’s summit, the volcano has been dormant for the past 1000 years. The cloud that encircles its peak is known as a cap cloud, so-called because these peculiar clouds form around high peaks, adding a flat white cap to mountain ...[Read More]

Geosciences Column: How curbing HFC emissions could reduce warming

Carbon dioxide is without a doubt the most famous of warming culprits. But would reducing emissions of this greenhouse gas be enough to mitigate climate change within this century? A recent paper published in Atmospheric Chemistry and Physics focuses on a less known substance that, if phased out, could avoid as much as 0.5 °C of warming by 2100. Hydroflurocarbons (HFCs) have an interesting history ...[Read More]

Dust in the desert: The Kuiseb and Tschaub Rivers – part 2 of 3

The dust in the desert series continues this week as James King shares his experience of fieldwork in Nambia… Our base of operations is located in Swakopmund, a sea-side town of German heritage. This has two benefits: pastries and unrivalled hardware stores. The amount of supplies (hardware, not cake) that this sleepy Namibian town has puts most major UK cities to shame; proving to be an essential ...[Read More]