Proportional Trends of Continuous Rainfall in Indian Summer Monsoon
نویسندگان
چکیده
A comprehensive study on the Indian summer monsoonal rainfall (ISMR) is performed in light of decadal changes continuous events and number rainy days using 68 years (1951–2018) gridded rain gauge data. Non-parametric Mann–Kendall’s test applied total amount, days, events, magnitude to find trends over different climatic zones India for two periods, 1951–1984 1985–2018. Our results found a decreasing trend more than 4-days during recent 34 (1985–2018) compared 1951–1984. The rate increase/decrease extreme/continuous does not follow similar magnitude. Moreover, shifted towards lesser with higher magnitudes During crop’s sow season (i.e., first 45 from onset date monsoon), decreased by half day last years. Over Central North East regions India, ~0.1 days/yr ~0.3 days/yr, respectively, Overall, may escalate water scarcity lead lower soil moisture rain-fed irrigated land. Additionally, an upsurge heavy episodes will unexpected floods. On daily scale, correlates evaporation up 0.87 various land cover use India. Continuous light-moderate seems be controlling factor replenishing upper levels. change characteristics force monsoon-fed rice cultivation period adopt changing patterns.
منابع مشابه
Indian Summer Monsoon Rainfall: Implications of Contrasting Trends in the Spatial Variability of Means and Extremes
India's agricultural output, economy, and societal well-being are strappingly dependent on the stability of summer monsoon rainfall, its variability and extremes. Spatial aggregate of intensity and frequency of extreme rainfall events over Central India are significantly increasing, while at local scale they are spatially non-uniform with increasing spatial variability. The reasons behind such ...
متن کاملRelationship between ocean mean temperatures and Indian summer monsoon rainfall
M. M. Ali,* P. V. Nagamani,1 N. Sharma,1 R. T. Venu Gopal,2 M. Rajeevan,3 G. J. Goni4 and Mark A. Bourassa5 1Department of Space, National Remote Sensing Centre, Hyderabad, India 2Ministry of Earth Sciences, Indian National Center for Ocean Information Services, Hyderabad, India 3Ministry of Earth Sciences, New Delhi, India 4Atlantic Oceanographic and Meteorological Laboratory, National Oceanic...
متن کاملAdvancing Indian Monsoon Rainfall Predictions
Despite great strides made in seasonal climate forecasting using dynamical models, skill in predicting the Indian monsoon is woefully poor. Our analysis of the reasons for failure exposes a flaw in the popular design of dynamical prediction systems. The approach of driving atmospheric models with a projected ocean surface temperature presupposes Indian monsoon variability to be a consequence so...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Remote Sensing
سال: 2021
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs13030398