Earthquake readiness in volatile regions: the case of Israel

Natural Hazards - The Jordan Rift Valley is a high-risk low-occurrence zone for earthquakes, with documented incidences within the last millennium causing widespread destruction. This research...     

Limitation of using multi-type sensors in combination for verifying atmospheric phenomena

The feasibility of combining two sensors for monitoring gas concentrations over a large area, is demonstrated via controlled simulation experiments. The network considered was a lidar combined with a point detector—the MIRAN spectrophotometer equipped with a flow-through gas cell. The first has a spatial scanning capacity and a very good time resolution, whereas the second has an inherent temporal memory effect. Algorithms for operating the two sensors coincidentally, taking their physical characteristics into account, were constructed. A good fit was found between measured concentrations in the MIRAN and reconstructed concentrations, using the lidar data for the same environment. Thus complementary operation can be achieved. The MIRAN temporal memory effect can be overcome by correlating the concentration calculated over different time intervals.