The urban heat island effect (UHI) for inner land regions was investigated using satellite data, ground observations, and simulations with an Single-Layer Urban Canopy Parameterization (SLUCP) coupled into the regional Weather Research Forecasting model (WRF, http://wrf-model.org/index.php). Specifically, using the satellite-observed surface skin temperatures (Tskin), the intensity of the UHI was first compared for two inland cities (Xi’an City, China, and Oklahoma City (OKC)), which have different city populations and building densities.

The evolution of Earth’s climate on geological timescales is largely driven by variations in the magnitude of total solar irradiance (TSI) and changes in the greenhouse gas content of the atmosphere. Here we show that the slow ∼50 Wm−2 increase in TSI over the last ∼420 million years (an increase of ∼9 Wm−2 of radiative forcing) was almost completely negated by a long-term decline in atmospheric CO2. This was likely due to the silicate weathering-negative feedback and the expansion of land plants that together ensured Earth’s long-term habitability.

Annual and seasonal variability and trends in low cloud cover over India were analyzed for the period 1961-2010. Taking all period into account, there is a general decrease in mean low cloud cover over most regions of India, but an increase in the Indo-Gangetic plains and northeast India. Long term mean low cloud cover over India has inter-annual variations with highest cloud cover (39.4%) in monsoon and lowest cloud cover (10.5%) in winter season.

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A simultaneous analysis of 13 years of remotely sensed data of land cover, fires, precipitation, and aerosols from the MODIS, TRMM, and MISR satellites and the AERONET network over Southeast Asia is performed, leading to a set of robust relationships between land-use change and fire being found on inter-annual and intra-annual scales over Southeast Asia, reflecting the heavy amounts of anthropogenic influence over land-use change and fires in this region of the world.

This report focuses on integrated hybrid renewable energy projects consisting of wind and solar energy. Ministry of New and Renewable Energy directed National Institute of Wind Energy, Chennai to prepared a report on hybrid wind and solar energy production analysis.

This report focuses on integrated hybrid renewable energy projects consisting of wind and solar energy. Ministry of New and Renewable Energy directed National Institute of Wind Energy, Chennai to prepared a report on hybrid wind and solar energy production analysis.

Developers who won an auction of solar project contracts in Jharkhand are still waiting for the state’s government-run electricity distributor to sign power purchase agreements (PPAs), six months a

Anthropogenic aerosols are a key factor governing Earth’s climate, and play a central role in human-caused climate change. However, because of aerosols’ complex physical, optical, and dynamical properties, aerosols are one of the most uncertain aspects of climate modeling. Fortunately, aerosol measurement networks over the past few decades have led to the establishment of long-term observations for numerous locations worldwide.

Sustainable development of Indian cities is an essential pre-requisite for India to establish itself as a major economic power. Smart cities dwell on energyefficient urban centres. The National Action Plan on Climate Change and the recently formulated plan for Smart Cities emphasize the need for energy efficiency. However, inadequate domestic finance and lack of public support impose sizeable constraints. (Scientific Correspondence)

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