2.4 Remote Sensing and the Geological Record
The emergence of satellite remote sensing in the last decade has provided a much more systematic and synoptic framework for scientific knowledge of the Earth, which in turn improves measurements with numerical modelling; which enhances understanding of where and when a natural hazard occurs and therefore resulting in either reducing or observing socio-economic impact caused (Tralli et al 2005). Unfortunately, due to the sporadic and indeterminable timings of volcanic hazards, measurements are usually few and far between. However, with the break-through in remote sensing, observations can be constant, aiding and observing changes, in this case volcanic alterations such as thermal imagery and gas emissions. Some measurement strategies that incorporate these factors are: