Browsing the BGS News Archive - Site updates

The Katla volcanic system, in southern Iceland, comprises a central volcano and a fissure system. It is partly covered by the Mýrdalsjökull ice cap, which infills the c. 650 m-deep summit caldera. Katla is one of Iceland s more active volcanoes.

Katla has had about 20 eruptions in the last 1100 years, with major glacial floods (jökulhlaups) accompanying observed eruptions. The durations of documented eruptions range from two weeks to four months.

More about Katla volcano, Iceland

G-BASE geochemical samples can be displayed in Google Earth using KML files. Information downloaded from the BGS corporate Geochemistry Database is converted into standardised data files, classified by country (England, Wales, Scotland and N. Ireland) and sample type (topsoil, deep soil, stream sediment and stream water).

Location index for chemical data in environmental samples

Our citizen science programme encourages volunteers to record observations about temporary geological exposures - GeoExposures - or geological hazards (such as a landslides or flooding).

You don t have to be a qualified scientist to post information you just need to know where the event or observation is located.

You can upload photos, web or video links, or a simple text description of what you have observed.

We would like you to share your evidence of landslides, flooding or rock exposures at britishgeologicalsurvey.crowdmap.com

We are investigating how the biogeochemical processes operating in floodplain environments might affect the concentrations of groundwater contaminants from urban environments reaching surface water courses.

More about Floodplains and their role in contaminant attentuation

Groundwater provides most of the domestic water supply in rural Africa and supports poverty reduction through irrigation.

Reliance on groundwater is likely to increase as rainfall becomes more variable and demand for water becomes greater.

Groundwater resilience to climate change in Africa is a DFID-funded project to improve understanding of the impacts of climate change on groundwater resources and local demand including :

• Quantitative groundwater maps for Africa

• Rural water supplies

• High yielding groundwater supplies

• Access to improved water supplies and wealth