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 Department continuously monitors weather and climate over Indian region. The annual mean land surface air temperature averaged over India during 2023 was …
Phase transitions of atmospheric water play a ubiquitous role in the Earth's climate system, but their direct impact on atmospheric dynamics has escaped wide attention. Here we examine and advance a theory as to how condensation influences atmospheric pressure through the mass removal of water from the gas phase with …
Black carbon aerosol plays a unique and important role in Earth's climate system. Black carbon is a type of carbonaceous material with a unique combination of physical properties. This assessment provides an evaluation of black-carbon climate forcing that is comprehensive in its inclusion of all known and relevant processes and …
The use of technologically advanced seeds is currently much lower in the production of rice than in other crops Rice output in India can be raised at least 15-20 per cent through increased use of hybrid seeds, a Rabobank study said. The use of technologically advanced seeds is currently much …
“With the withdrawal of North-East Monsoon, the temperature during the day time is likely to increase gradually,” states the short-term weather report from the Agro Meteorological Advisory Services (AAS) that is attached to the Tamil Nadu Veterinary and Animal Sciences University (TANUVAS). Head of AAS A. Natarajan said that the …
Various observed weather and climate features of 2012 southwest monsoon and verification of operational and experimental forecasts for rainfall at various spatial and temporal scales during the seasons have been discussed in this report. The evidence of monsoon current over the Andaman Sea and its onset over Kerala were delayed …
Climate during 2012 was warm in respect of temperature. Annual mean temperature anomaly for the country as a whole during the year 2012 was +0.49oC above the 1961-1990 period average making it the eighth warmest year on record since 1901. The monsoon seasonal temperature over India was above normal by …
The spatial organization of functional vegetation types in river basins is a major determinant of their runoff production, biodiversity, and ecosystem services. The optimization of different objective functions has been suggested to control the adaptive behavior of plants and ecosystems, often without a compelling justification. Maximum entropy production (MEP), rooted …
Cold winds blowing from the western Himalayan region brought down Delhi’s maximum temperature by seven degrees between Thursday and Friday. The day temperature on Friday settled at 21.6 degrees Celsius, four degrees below normal though the minimum went up by a degree to 10.9 degrees Celsius, one degree above normal. …
An accurate early warning system to predict impending epidemics enhances the effectiveness of preventive measures against dengue fever. The aim of this study was to develop and validate a forecasting model that could predict dengue cases and provide timely early warning in Singapore.
The evolution of elongated body shapes in vertebrates has intrigued biologists for decades and is particularly recurrent among squamates. Several aspects might explain how the environment influences the evolution of body elongation, but climate needs to be incorporated in this scenario to evaluate how it contributes to morphological evolution. Climatic …
In sub-Saharan countries infested by tsetse flies, African Animal Trypanosomosis (AAT) is considered as the main pathological constraint to cattle breeding. Africa has known a strong climatic change and its population was multiplied by four during the last half-century. The aim of this study was to characterize the impact of …
Flooded rice fields are an important source of the greenhouse gas CH4. Possible carbon sources for CH4 and CO2 production in rice fields are soil organic matter (SOM), root organic carbon (ROC) and rice straw (RS), but partitioning of the flux between the different carbon sources is difficult. We conducted …
Over 5 lakh vehicles were registered in Delhi in 2011-12, reveals this 37th issue of Delhi Statistical Handbook brought out by Directorate of Economics and Statistics containing data related to various socio-economic parameters on the capital city. Delhi Statistical Hand Book-2012 is the 37th issue being published by Directorate of …
The functional convergence of tree transpiration has rarely been tested for tree species growing under urban conditions even though it is of significance to elucidate the relationship between functional convergence and species differences of urban trees for establishing sustainable urban forests in the context of forest water relations. We measured …
Although hyperthermia is a recognized animal teratogen and maternal fever has been associated with birth defects in humans, data on the relationship between high environmental temperatures and birth defects are limited. To determine whether pregnancies are potentially vulnerable to the weather extremes anticipated with climate change, the researchers evaluated the …
This new WHO report provides scientific information on the connections between weather and climate and major health challenges. These range from diseases of poverty to emergencies arising from extreme weather events and disease outbreaks. The Atlas of health and climate is a product of this unique collaboration between the meteorological …
Tropical cyclones over the Arabian Sea in the pre-monsoon season (May–June) have intensified since 1997 owing to significant reductions in storm-ambient vertical wind shear (VWS) in the troposphere; these reductions have decreased on average by about 3 m s−1 from the pre-1997 epoch (1979–1997) to the recent epoch (1998–2010)1. The …
Analysis of observations on six continents reveals a global preference for afternoon rain to fall on locally drier soils—contrary to the predictions of large-scale climate models, and suggesting that such models may exaggerate the occurrence of droughts.
Biomass burning (BB) contributes large amounts of black carbon (BC) and particulate organic matter (POM) to the atmosphere and contributes significantly to the earth’s radiation balance. BB particles can be a complicated optical system, with scattering and absorption contributions from BC, internal mixtures of BC and POM, and wavelength-dependent absorption …
