Researchers from the Indian Institute of Science, Bangalore; Indian Institute of Tropical Meteorology, Pune; and Florida State University, USA; have mathematically computed a multidecadal variability in the Indian summer monsoon rainfall and the global sea surface temperature. They have established that Indian monsoon rainfall exhibits a 67-year oscillation and is closely linked to the sea surface temperature cycle, which also shows a similar 67-year swing. The study also shows that 80% of all droughts have occurred in the rainfall cycle’s ‘negative phase’, associated with a below-average rainfall; whereas 60% of all floods have occurred in the positive phase, marked with above-average precipitation. Their findings have been published in the Quarterly Journal of the Royal Meteorological Society.
Researchers from the Indian Institute of Science, Bengaluru, have used a non-traditional method to measure extreme rainfall events. This approach is more accurate than what is currently used by meteorologists and researchers.
India produces a large amount of agricultural products due to its fertile soil and dependable rainfall patterns. Any harm to the soil would affect the lives of millions in the country. Soil erosion due to rainfall is one such threat. In an first of its kind study an international team of scientists have designed a global map of soil erosivity to devise mechanisms to protect our soils from erosion due to rainfall.
Different parts of the country was inundated with floods this year, while other parts continue to face rainfall shortages, leading to drought situations. The culprit behind the disparity may be the sudden, extreme rainfall events we have been facing. Warming temperatures leading to extreme events may be affecting the overall rainfall the country receives says this new study.
Each monsoon brings a fury of rains in different parts of the country killing many people and damaging properties. In spite of having disaster warnings in place, India still battles floods and the rains as many of us watch helplessly. But perhaps no more, thanks to science! Researchers have now developed a new technique to forecast extreme rainfall events by considering regional parameters that affect the quantity of precipitation. This model, which is accurate than existing models used to forecast rains, can be used for any region by including regional parameters like temperature and humidity, say the researchers.
Albeit irksome, termites are one of the fascinating insects we have around us that play a major role in the recycle of nutrients. Found in mounds made of soil, their nests reveal a host of information about the surroundings. In a recent study, researchers have investigated the relationship between the abundance and distribution of termite mounds, and the impact of soil properties and the fragmentation of the natural forests on the same. Since studies on termites found in Asia are very few, the researchers claim this study opens up a lot more fascinating information in the world of termites of southern India