Thunderstorms & lightning and their possible frequency change:
The use of modern methods of lightning detection makes it possible to measure thunderstorms and their risk class in real time, estimate dangers such as lightning, heavy rain, gusts and probability of hail, and to forecast their evolution in the short term. Worldwide there are always between 35 and 55 flashes / s, with large regional differences that depend on latitude and spatial conditions.
Lightning-rich areas can be found especially near the equator; a particular hot spot, e.g., is lake Maracaibo in Venezuela. For several decades, land-based lightning networks are in operation, with short ranges for local high-quality coverage, and with long ranges for global coverage with somewhat lower data quality.
Along with increasingly improved satellite-based observations of lightning, it has become possible to obtain continuous global lightning data for comprehensive assessment of worldwide thunderstorms.
This enhances the ability to accumulate longer and reliable series of lightning measurements for study of trends in thunderstorm activity with respect to climate change. This article analyzes local lightning data of the LINET system in Europe and in Colombia. As one result one finds an increase in the number of thunderstorm days in the Mediterranean.