An increasing community demand for accurate, user friendly and easily accessible geographic information has lead to the development of online resources to aid in the decision making process (Craig et al, 2002, Green et al, ...

Existing wave concepts are based on energy conservation (1st law) and on measurable variables like wavelength, amplitude, frequency or velocity which define the energy and the behaviour of waves in space and time. A wave ...

Low-cost, medium-resolution and hand-held digital cameras with near-infrared (NIR) capability are now readily available. The NIR spectrum (700 to 925 nanometers) is a tiny part of the overall electro-magnetic spectrum. ...