Western Disturbances - An Indian Meteorological Perspective

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This book explores Western Disturbances (WDs) and their impact on the Indian subcontinent, detailing their unique characteristics and dynamics that cause atmospheric instabilities over northern India, influenced by the Himalayas. It begins with a definition and progresses to discuss their structure and migration, covering topics such as dynamics, energetics, thermodynamics, modeling studies, and land-use interactions, as well as WDs in the context of climate change. The text highlights the interaction of WDs with other weather systems across the four seasons of the Indian climate: winter, pre-monsoon, monsoon, and post-monsoon, with a particular focus on winter dynamics, as WDs are crucial for winter precipitation in India. The authors advocate for the term "Indian winter monsoon" to describe this period, distinguishing it from the northeast monsoon, which has been more commonly used. Featuring detailed illustrations and case studies, the monograph serves as a valuable resource for researchers and students, enhancing their understanding of these significant storms. This knowledge is vital for effective short-term and seasonal hydrometeorological forecasting and for assessing regional climate change and its impacts.