Hydrological summary for the United Kingdom: December 2014

[摘要] Undertaking a field survey, such as the Countryside Survey (Carey et al., 2008) or the Welsh Glastir Monitoring and Evaluation Programme (GMEP) (Emmett and GMEP team, 2014), is a relatively expensive and time consuming way of collecting habitat data in comparison with remotely sensed techniques. In order to assess the information gained from a field survey in relation to the information that can be gained from aerial photography, a short project has been undertaken with the following objectives: ? To measure the time taken to survey a 1km square using aerial photography (for a range of different and UK representative landscape types) ? To measure the accuracy and level of detail of data derived using this method relative to data collected using field survey ? To provide an idea of time costs associated with each of the methods ? To determine the extent to which Priority Habitats can be assessed using remotely sensed methods in addition to Broad Habitats.

[发布机构] NERC/Centre for Ecology & Hydrology

[效力级别] Meteorology and Climatology