Methodology
| Name | Category | Description |
|---|---|---|
| Collapsible Deposits | Ground Stability | If the material below a building collapses, it may cause the building foundations to rapidly subside. If the ground collapses unevenly, the resulting damage may be more severe than that caused by a uniform collapse. |
| Artificial Ground | Ground Stability | Artificial ground is the term we use for those areas where the ground at or near the surface has been significantly modified by human activity. Typically, this includes ground that has been deposited (Made Ground) or excavated (Worked Ground), or some combination of Landscaped Ground or Disturbed Ground. BGS maps do not indicate the thickness or composition of deposits comprising Artificial Ground, it should be borne in mind that such deposits may well be highly variable in character (including a range of waste materials) and potentially exhibit a range of engineering characteristics due to their heterogenous nature (i.e. they may be compressible, unstable or require careful handling). |
| Landslides | Ground Stability | Landslides occur ultimately due to the effect of gravity, although other factors can all contribute to the overall stability of a slope. Landslides are commonly divided into four categories: falls, topples, slides or flows. |
| Dissolution of Soluble Rocks | Ground Stability | Ground dissolution occurs when certain types of rocks, containing layers of soluble material, get wet and the soluble material dissolves. This can cause underground cavities to develop. These cavities reduce support to the ground above and can lead to a collapse of overlying rocks. The Dissolution of Soluble Rocks dataset (procured from BGS GeoSure data product) uses a number of datasets in its creation. These include: • geology (bedrock, superficial, artificial, mass movement) • digital terrain model • superficial deposits thickness model • karstic/non-karstic geology • glacial limits • superficial permeability |
| Shrink Swell | Climate Change | This dataset provides insight on the likelihood that foundations will be affected by increased clay shrink-swell in the future, compared to current conditions, as a result of climate change. |
| Flooding | Climate Change | This dataset provides insight on the likelihood that the property will be affected by flooding from all sources (fluvial, pluvial, tidal and groundwater) in the future, compared to current conditions, as a result of climate change. |
| Energy Performance Certificate (EPC) | Climate Change | An EPC certificate shows the energy rating of the property (A to G), the environmental impact as carbon dioxide emissions per year, and the potential energy rating of the property. Indicative costs associated with making the necessary energy efficiency improvements are also highlighted. |
| Heat Stress | Climate Change | This dataset provides insight on the relative land surface temperature of the area your property is situated, and thus the property’s susceptibility to heat stress. Since the data is historic and provides an overview of susceptibility, it is assumed that areas that are cooler today are likely to remain relatively cooler in the future as average temperatures rise due to climate change. Similarly, areas that are consistently hotter today are likely to become even hotter in the future. |
| Wildfire | Climate Change | This dataset provides insight on the relative susceptibility to wildfire for your property’s location. With increasing temperatures and decreasing rainfall projected into the future, it is expected that areas of low susceptibility are expected to remain at the same level of susceptibility in the future, while areas of high susceptibility are expected to remain high in the future. |
| Drought | Climate Change | This dataset provides insight on the relative susceptibility to drought for your property’s location. With increasing temperatures and decreasing rainfall projected into the future, it is expected that areas of low susceptibility are expected to remain at the same level of susceptibility in the future, while areas of high susceptibility are expected to remain high in the future. |