Abstract
The Tungurahua, located in the Cordillera de los Andes, is the volcano with the most eruptive activity in Ecuador nowadays. 1993 records the eruptive initial process and in August of 1999, after almost 80 years of rest, the volcano begins an explosive eruptive period. This research examines the effects of the eruptive process of the volcano in the patterns of change in precipitation in the short term in a hydrographic watershed. Their results are intended to contribute to the studies carried out to understand the weather and the factors influencing its variability at local and global level. It aims also to contribute with technical data in the debate about experimenting with artificial volcanoes to weather modification. The analysis demonstrates a process of redistribution of rainfall, with significant increases in rainfall from 42.25% on December, and significant decreases of 40.03% on September, during the presence of the eruptive process.
Highlights
Climate change and changes in climate variability associated with global warming affect our planet and are a source of concern to the scientific community
The present study demonstrates that at the level of watershed, a volcanic eruption produces an imbalance in local rainfall and in the hydrological cycle, causing problems and uncertainty in planning and integrated management of water resources
In the month of December we found changes in rainfall patterns that are associated with the eruptive process of the Tungurahua volcano Table 6, in all the watershed selected stations recorded significant positive
Summary
Climate change and changes in climate variability associated with global warming affect our planet and are a source of concern to the scientific community. In relation to the effects of a volcanic eruption on rainfall there is on enough information, it is known from three-dimensional simulations performed in the Goddard Institute for space studies of NASA, that global precipitation is suffering decreases during the first two years after volcanic eruptions [2] [4] In this context, the volcanic eruptive events produce effects on the climate and temperature. Large investments have been made in the development of studies and research which contribute with ideas and proposals for the mitigation of the rapid, uncontrolled warming at the Earth’s surface, as result arises as an option the artificial modification of the weather conditions on the planet with the creation of artificial volcanoes that simulate the effects that produce volcanic eruptions to artificially cool the Earth
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