Summer monsoon season 2011 was highlighted with unprecedented rainfall in some districts of Punjab in the second week of August 2011 causing significant damage to public and private properties. An attempt has been made in this paper to identify the observational aspects, main synoptic system, Physical process and thermodynamic features leading to such unusual rainfall in Punjab recorded on 13th August, 2011.

Original Source

Weather plays an important role in agricultural production. It plays a major role before and during the cropping season and if the same is provided well in advance, it results in inspiring the farmers to organize and activate their own resources in the best possible way to increase the crop production.

Although not considered in climate models, perceived risk stemming from extreme climate events may induce behavioural changes that alter greenhouse gas emissions. Here, we link the C-ROADS climate model to a social model of behavioural change to examine how interactions between perceived risk and emissions behaviour influence projected climate change.

Future changes in rainfall have serious impacts on human adaptation to climate change, but quantification of these changes is subject to large uncertainties in climate model projections. To narrow these uncertainties, significant efforts have been made to understand the intermodel differences in future rainfall changes. Here, we show a strong inverse relationship between present-day precipitation and its future change to possibly calibrate future precipitation change by removing the present-day bias in climate models.

Aridity—the ratio of atmospheric water supply (precipitation; P) to demand (potential evapotranspiration; PET)—is projected to decrease (that is, areas will become drier) as a consequence of anthropogenic climate change, exacerbating land degradation and desertification. However, the timing of significant aridification relative to natural variability—defined here as the time of emergence for aridification (ToEA)—is unknown, despite its importance in designing and implementing mitigation policies.

The rainfall pattern in North East (NE) India shows a large variation both spatially and temporally5 . Due to this, severe flood occurs frequently in the region. Therefore, it is important to study the variability of pre-monsoon and summer monsoon showers of the region in the geological past. The quantitative palaeomonsoonal record from NE India is poor.

Original Source

Southeastern Austria as part of the southeastern Alpine forelands experiences an increase of temperature and a tendency of decreasing precipitation. Especially in summer, the temperature strongly increased by about 0.7 °C per decade since the 1970s. Drought vulnerability under climate change is therefore a key question in this region. Here, we address this question by exploring the hydrological sensitivity of the Raab catchment in Austria (area 987 km2), a typical catchment in these Alpine forelands.

As a result of global increases in both temperature and specific humidity, heat stress is projected to intensify throughout the 21st century. Some of the regions most susceptible to dangerous heat and humidity combinations are also among the most densely populated. Consequently, there is the potential for widespread exposure to wet bulb temperatures that approach and in some cases exceed postulated theoretical limits of human tolerance by mid- to late-century.

By reviving millet farming systems, the tribal households in Odisha have reduced their vulnerability to climate change. The millet based farming has also helped in addressing the problem of malnutrition in the communities.

Global warming is expected to intensify the Earth’s hydrological cycle and increase flood and drought risks.