Annual climate summary 2023
The report discusses the climate condition over Indian region during the year 2023. Notably, global temperatures soared to exceptionally high levels during this period (WMO.No.1347). The India Meteorological
Monsoons
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Impact of climate fluctuations on deposition of DDT and hexachlorocyclohexane in mountain glaciers: Evidence from ice core records
How do climate fluctuations affect DDT and hexachlorocyclohexane (HCH) distribution in the global scale? In this study, the interactions between climate variations and depositions of DDT and HCH in ice
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Impact of agriculture crop residue burning on atmospheric aerosol loading – a study over Punjab State, India
The present study deals with the impact of agriculture crop residue burning on aerosol properties during October 206 and 2007 over Punjab state, India using ground based measurements and multi-satellite
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On the predictive behaviour of the Indian monsoon in June 2009
Francis and Gadgil1 have made many interesting correlations of meteorological variables and events, and have proposed that unfavourable SST (sea surface temperature) gradient between the Bay of Bengal and EEIO (eastern equatorial Indian ocean) led to the large deficit of monsoon rainfall in 2009.
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La Nina may trigger late-season monsoon burst
Vinson Kurian Japanese researchers have indicated the possibility of La Nina, the alter ego of monsoon-buster El Nino, to unfold over the equatorial Pacific later this year. La Nina, which represents shift of warmer sea-surface temperatures to the west equatorial Pacific, has generally coincided with a normal Indian monsoon, though there is no direct cause-effect relationship.
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Dominant control of the South Asian monsoon by orographic insulation versus plateau heating
The elevation of the Tibetan plateau is thought to cause its surface to serve as a heat source that drives the South Asian summer monsoon, potentially coupling uplift of the plateau to climate changes on geologic timescales.
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A moist model monsoon
Received wisdom about the main driver of the South Asian monsoon comes into question with a report that tests the idea that the Himalayas, not the Tibetan plateau, are the essential topographic ingredient.
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Weather forecast to feature monsoon phases
P. Sunderarajan THIRUVANANTHAPURAM: The India Meteorological Department is set to introduce an additional feature to its forecasts during monsoon. Shailesh Nayak, Secretary, Ministry of Earth Sciences, said here on Tuesday that from this year, farmers would also get forecasts of active and break phases of monsoon 10-15 days in advance.
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Monsoon 2009: a report
The 2009 southwest monsoon recorded the third highest deficient all India southwest monsoon season rainfall (-22% of LPA) during the period 1901-2009. All the monsoon months except July recorded large deficient rainfall. Region wise, except south Peninsula, all other homogeneous regions recorded much below normal rainfall. Activity of depression was below normal with
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Determination of onset and withdrawal dates of summer monsoon across India using NCEP/NCAR re-analysis
Following a unified approach, an objective criterion has been developed for the determination of yearwise onset and withdrawal dates of the summer monsoon over the 19 subregions across India.
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Transfer function based downscaling methods for assessing future rainfall using GCM output
General Circulation Models (GCMs) are tools designed to simulate time series of climate variables globally, accounting for effects of greenhouse gases in the atmosphere. They are good at continental and