landslides are natural disasters that annually inflict great damages to public and private properties which may associate with loss of life. in recent decades, research on developing methods for predicting the time of landslide has been one of the significant attempts made by scientists. since in some type of material, landslides are preceded by undetectable movements that cannot be recorded an...

slowly evolving natural hazards such as agricultural drought. Famine early warning systems transform these data into actionable policy information, enabling humanitarian organizations to respond in a timely and appropriate manner. These life-saving responses are increasingly important: In 2006, one out of eight people did not have enough food to eat and 22 million more people became sufficientl...

Numerous scientific research and engineering programs are being carried out globally in an effort to monitor environmental degradation, natural and anthropogenic disasters. These are part of a process to predict possible catastrophic events and help minimize their devastating impact on the environment and human life. Many of these programs, sometimes referred to as Early Warning Systems (EWSs),...

The use of mobile devices as an effective and targeted way for alerting the public in cases of disasters has become an important part of future infrastructures for early warning and disaster management. In contrast to classical alert approaches such as TV, Radio and sirens that are offering solely a one-directional communication the use of smart phones opens new potentials such as feedback mech...

Droughts will increase in frequency, intensity, duration, and spread under climate change. Drought affects numerous sectors society the natural environment, including short-term reduced crop production, social conflict over water allocation, severe outmigration, eventual famine. Early action can prevent escalation of impacts, requiring drought early warning systems (DEWSs) that give current ass...