[1] Meteorological records of monsoon rainfall in the Indian Ocean are generally less than 100 years long. The relative brevity of these records makes it difficult to investigate monsoon variation on decadal and centennial timescales, to determine what factors influence the intensity of rainfall on these timescales, or to place possible changes in the twentieth century into a broader historical...

[1] Monsoons, the most energetic tropical climate system, exert a great social and economic impact upon billions of people around the world. The global monsoon precipitation had an increasing trend over the past three decades. Whether or not this increasing trend will continue in the 21st century is investigated, based on simulations of three high-resolution atmospheric general circulation mode...

A large fraction of the rain received by continental India is produced by cyclonic vortices with outer radii of about 1,000 km that are contained within the larger scale South Asian monsoon flow. The more intense occurrences of these vortices are called monsoon depressions; these consist of bottom-heavy columns of relative vorticity that propagate to the northwest in time-mean low-level eastwar...

In this work we analyze the post monsoon Dengue outbreaks by analyzing the transient and long term dynamics of Dengue incidences and its environmental correlates in Ahmedabad city in western India from 2005 to 2012. We calculate the reproduction number Rp using the growth rate of post monsoon Dengue outbreaks and biological parameters like host and vector incubation periods and vector mortality...

We review evidence for a potential link between the North American Monsoon (NAM) and the South American Monsoon (SAM). Such a link is poorly documented in the literature, but if it were to exist, it could involve the influence of a monsoon onset on the cross-equatorial flow, atmospheric wave responses, and oceanic feedback to monsoon heating anomalies, which could in turn influence the decaying...

The structure and properties of , heat and moisture sources and sinks of the Asian monsoon are reviewed. Results from the First GARP Global Experiment (FGGE) have yielded important information on these sources, ranging from the planetary scale down to the scale of individual convective systems. The emerging picture is one of a complex spatial and temporal distribution of heat sources over the e...

The Moderate Resolution Imaging Spectroradiometer (MODIS) onboard EOS Terra measures global aerosol optical depth and optical properties since 2000. MODIS aerosol products are freely available and are being used for numerous studies. In this paper, we present a comparison of aerosol optical depth (AOD) retrieved from MODIS with Aerosol Robotic Network (AERONET) data for the year 2004 over Kanpu...

In this article, we review the present status and problems and future prospects of long-range forecasts of Indian summer monsoon. Since 1988, the India Meteorological Department has been issuing forecasts based on 16-parameter power regression and parametric models. All these forecasts are proved to be reasonably correct. However, in some years, forecast error was larger than the model error of...

Results are first presented from an analysis of a global coupled climate model regarding changes in future mean and variability of south Asian monsoon precipitation due to increased atmospheric CO2 for doubled (2 · CO2) and quadrupled (4 · CO2) presentday amounts. Results from the coupled model show that, in agreement with previous studies, mean areaaveraged south Asian monsoon precipitation in...

[1] Positive Indian Ocean Dipole (IOD) events generally tend to be accompanied by intensified summer monsoon flows and above normal precipitation over the subcontinent; although strong monsoons have not always coincided with positive IOD events. Numerical simulation experiments and supplementary data diagnostics are performed to understand the IOD sub-surface dynamics in relation to the monsoon...