12-14 September, 2011, Lucknow - Earth Science India

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National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’ 12-14 September, 2011, Lucknow storage is also dependant on the integrity of the seal in the cap rock or the impermeable rock layer that overlies a reservoir. The strength and composition of the seal rock under different injection pressures determine if the CO 2 will be contained or ultimately leak out of the reservoir. The CCS as a bridge to renewable energy and sustainability, is a ‘bridging’ technology that will ensure that emission targets are achieved. However, Carbon Capturing and Storage is not a 'silver bullet' (straightforward solution perceived to have extreme effectiveness) to combat global warming. The global recovery of hydrocarbons from the subsurface using integrated geoscience and engineering technology, termed as 'petroleum geoengineering' is an activity with global impact. The modern concept of geoengineering is usually taken to mean proposals to deliberately manipulate the Earth's climate to counteract the effects of global warming from greenhouse gas emissions. Some geoengineering techniques are based on carbon sequestration. These seek to reduce greenhouse gases in the atmosphere directly. These include direct methods (e.g. carbon dioxide air capture) and indirect methods (e.g. ocean iron fertilization). These techniques can be regarded as mitigation of global warming. However, there is need of further researches and development efforts for adapting currently proven and emerging geophysical tools applied for other applications for CO 2 and also in developing new innovative tools for CO 2 sequestration application. INCREASING IMPERVIOUS SURFACES AND ITS IMPACT ON LAND SURFACE TEMPERATURE OF PUNE CITY, INDIA Anargha A. Dhorde Department of Geography, Nowrosjee Wadia College, Pune 411 001 email: anarghawakhare@gmail.com Surface energy balance is influenced by changing land surface characteristics which is expressed in the form of Land Surface Temperature (LST) and its spatiotemporal variations. LST is regarded as a function of four surface and sub surface properties: albedo, emissivity, the thermal properties of urban construction materials (including moisture), and the composition and structure of urban canopy (Goward, 1981). LST, which is heavily influenced by urban surface structures, is a significant parameter in urban environmental analysis. This study attempts to examine the effect of impervious surfaces (IS) spatial patterns on LST over Pune, India. An NDVI and TC band II approach was adopted to estimate the IS by employing Landsat TM and ETM+ data of 1990 and 2009. One of the indicators of increasing IS is the built-up area, and therefore, IS is represented by built-up area in this study. LST was retrieved for both the 94
National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’ 12-14 September, 2011, Lucknow images (1990 and 2009) to examine the relationship between IS and LST. The results obtained indicated rapid growth in the IS over the last two decades and a drastic decrease in vegetation cover. This has led to an increase in LST over different localities in the city. By and large it was observed that the net IS areas increased by almost 21% in the past two decades and led to increase in LST by 2 to 12 deg. Cel. This is an indication of intensification of day time urban heat island over Pune city. The outcome provides a theoretical basis for improving urban planning efforts to lessen urban temperatures and thus diminish urban heat island effects. INSTANT TOTAL SOLAR RADIATION IN TWO DIFFERENT CLIMATIC CONDITIONS AND FACTORS INFLUENCING THE RADIATION: CORRELATION WITH METEOROLOGICAL PARAMETERS Sada Shiv, Kalpana Singh and Usha Bajpai Renewable Energy Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007 email: sada2011shiv@gmail.com, kalpanapgtphy@gmail.com, dr_ushabajpai@rediffmail.com In this paper an attempt has been made to see the correlation of instant total solar radiation with twelve meteorological parameters. For this, two different sites of different climatic zones of India – cold and cloudy (Shilong) and hot and dry (Jaiselmer) have been taken. In this study some meteorological parameters (dry bulb temperature, wind speed, wind direction and visibility) are directly associated while some parameters (dew point temperature, relative hunidity, vapour pressure, rainfall, cloud cover and moisture) are inversely associated with the instant total solar radiation. This study determines the potential of influencing meteorological parameters of instant total solar radiation in two different climatic zones. The strength of the correlations has been confirmed from the values of coefficients of correlation. 95
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12-14 September, 2011, Lucknow - Earth Science India

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