Recent updates to the BGS websites.
COST Action TU1202: Addressing the impacts of climate change on engineered slopes for infrastructure
In response to the work of the Natural Hazards Partnership, the BGS has prepared a number of Geohazard notes to provide relevant summary information for some of the geohazards that could affect the UK.
The Geohazard notes provide information on how and why the hazard occurs, how it is measured, locations susceptible to the hazard and possible worst case scenarios.
The notes also give details on how the BGS an collaborating organisations respond to such hazards.
Updated content regarding sinkholes, including:
Professor Michael Ellis has been announced as the first Chair of the new Strategic Programme Advisory Group for NERC.
Groundwater levels in some regions of the UK are currently at record highs. This has resulted in ongoing groundwater flooding, particularly in the south and south-west of the UK.
This flooding is located on the Chalk outcrop and also on the floodplain gravels associated with the region’s major rivers.
Although groundwater levels, and the incidences of groundwater flooding, will decrease in the floodplain gravels once the rivers return to more normal flows, due to the nature of groundwater movement in the Chalk aquifer, groundwater flooding may persist in some areas for weeks or months ahead.
The winter of 2013– 14 has seen record rainfall in the UK. December rainfall was 154 per cent of the average for the month across the country. This was followed by the wettest January on record for Southern England.
Infiltration of December rain filled up much of the available storage in the ground (soil, gravels, rocks) in many areas. Much of the subsequent rainfall therefore had nowhere to go except to run off the land, moving quickly to rivers and resulting in widespread fluvial flooding.
More on Groundwater flooding: Feb 2014
This whole area is underlain by chalk bedrock belonging to the Seaford Chalk Formation.
There are two possible causes of the hole: natural dissolution of the chalk or chalk mining. In some situations the two interact.
There is some evidence of local mining in this area and sinkholes are also common.More about the geology of the Sinkhole in the middle of the M2