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February 2017 - present
March 2016 - February 2017
October 2001 - March 2016
Publications
Publications (56)
In the age of analog cartography, the levels of details of a particular region or feature were generally shown at an accurate scale, where the graphical representation of scale correctly matched the level of classification used in those maps. Nowadays, many researchers are using geospatial techniques to extract information at different levels of cl...
The urban fabric of Pune city has undergone massive changes due to diversifying urban functionalities. The study attempts to identify different urban morphological landscapes within the city based on Local Climate Zones (LCZs) configurations. After identification of urban morphology in accordance with the LCZ scheme, the microclimatic simulations f...
Initial reports signify some specific isolated locations in different latitudes, revealing a paradoxical increase in both heavy and very heavy rainfall events and also an increment in total, i.e., in both rainfall and temperature, over ecologically sensitive areas along the Western Ghats (WG). This paper presents a coherent study of the full-scale...
Initial reports signify some specific isolated locations in different latitudes, revealing a paradoxical increase in both heavy and very heavy rainfall events and also an increment in total, i.e., in both rainfall and temperature, over ecologically sensitive areas along the Western Ghats (WG). This paper presents a coherent study of the full-scale...
Climate extremes are predicted to become more frequent and severe in the future, owing to rising greenhouse gas emissions in the atmosphere. Using appropriate trend indices, this study intends to analyze the effects of climate change on rainfall variability and extreme rainfall events in the millennium city of Mumbai. The analysis was carried out f...
The present study evaluates effective temperature (ET) over selected 25 south Indian cities. Effective temperature (ET) is a direct human comfort index. Considering India's vast population size that is rapidly urbanizing in recent years, it is essential to assess the thermal comfort of the people residing in cities. South Indian cities constitute t...
Human beings are adversely affected by climate extremes, pertinent to an increase in frequency and intensity of warm temperatures, eventually inducing warming on a global and regional scale. In a tropical nation like India, high summer temperature and increased moisture with the arrival of the southwest monsoon (hereafter referred to as monsoon) ag...
Climate extremes are predicted to become more frequent and severe in the future, owing to rising green-house gas emissions in the atmosphere. Using appropriate trend indices, this study intends to analyze the effects of climate change on rainfall variability and extreme rainfall events in the millennium city of Mumbai. The analysis was carried out...
This research attempts to investigate changes in the indices of climate extremes by analyzing daily maximum and minimum temperature at 62 and precipitation at 61 meteorological stations over southern India during the period of 1969–2014. The indices examined include both temperature (13) and precipitation (6). Indices for extreme temperature depict...
Trends in maximum, minimum and mean temperatures in seven bioclimatic zones have been studied at seasonal and annual scales with the help of data from 57 stations all over India for the period from 1901 to 2015. Linear regression model is used to determine the rate of change of temperature and student t-test is applied for significance testing. Res...
In the present study, trends in heat stress during summer and monsoon season months were assessed for two cities, Pune and Mumbai, for the period of 47 years from 1969 to2015 with the application of empirically derived Heat Index (HI) and rational heat balance based Physiological Equivalent Temperature (PET) index. A stepwise multiple regression an...
In the present study, trends in heat stress during summer and monsoon season months were assessed for two cities, Pune and Mumbai, for the period of 47 years from 1969 to2015 with the application of empirically derived Heat Index (HI) and rational heat balance based Physiological Equivalent Temperature (PET) index. A stepwise multiple regression an...
Landslide is the most devastating natural hazards by means of slow to rapid upward and downward movement of unstable rock and debris masses flow under the force of gravity in the Uttarakhand State of India. Monsoon rainfall and geological structure have played a key role for occurrence of landslide. "Landslide Hazard zonation Mapping" or "Susceptib...
1 Abstract— Impact assessment of Watershed based project
require long-term implementation, impact analysis, a good
qualitative measurement for project development. Considering the
ability of remote sensing technology in Narwa project monitoring
and impact assessment. A study was carried out to investigate the
Impact assessment of Kasdol block in Ba...
The paper analyses trends in temperature extremes such as hot days, very hot days and extremely hot days over southern India during summer season for the period 1969 to 2015. Tendencies in human thermal discomfort have also been worked out for the same time period. Linear regression and Mann-Kendall test were applied for time series analysis. Human...
The scientific understanding of hydro-meteorological and agricultural changes in the water-scarce region is crucial to formulate a plan for sustainable management of water resources and cropping pattern under the scenario of climate change. The present investigation, therefore, has attempted to detect the trends in the monsoon rainfall, runoff, dam...
The article which was recently published contained error. There is one small mistake remain in the Fig. 1 wherein the basin boundary of study basin has disappeared at the lower side. The original article has been corrected.
The present research aimed at analyzing temporal trends in thermal discomfort indices for a period of 46 years from 1969 to 2014 over western coastal region of India for seven urban centers during the months of pre-monsoon and monsoon seasons. Direct thermal discomfort indices employed for this purpose were thermo-hygrometric index (THI) and heat i...
Marathwada meteorological subdivision is one of the highest rainfall deficit regions of agricultural India, known for its severe droughts and incessant farmer suicides in the recent years. Over these areas, droughts and exceptionally dicey weather hinders rural development to a major extent. The present study sheds light on unseasonal and deficient...
Earth surface temperatures are changing worldwide together with the changes in the extreme temperatures. The present study investigates trends and variations of monthly maximum and minimum temperatures and their effects on seasonal fluctuations at different climatological stations of Maharashtra and Karnataka states of India. Trend analysis was per...
In the present study, trends in Heat Index were analyzed to assess heat stress conditions at 41 urban stations of southern peninsular India during monsoon season months (June to September) for the period 1969-2014. Results indicated that, with the exception of insignificant decrease at few stations, almost all stations registered significant increa...
The study highlights changes in temperature extremes during the period 1969-2006
Thermo-Hygrometric Index (THI), Heat Index (HI) and Wet Bulb Globe Temperature (WBGT) were used to evaluate thermal discomfort at 41 urban locations of southern India. Temporal tendencies in all these indices were assessed. The analysis depicted increase in thermal discomfort and heat stress at most of the stations of southern India. Cities particu...
The main objectives of the present study were 1) to assess climate variability over selected stations, 2) to evaluate trends in thermal discomfort, 3) to study the relationship between climate variability and thermal discomfort. The results revealed that, all the coastal stations show increase in hot days but western coastal stations have higher in...
The fifth assessment report of the Intergovernmental Panel on Climate Change stated that the changes in climate have caused impacts on all natural as well as human systems all over the Earth during the recent decades. The studies conducted over different parts of world confirm that trends for rainfall indices are spatially less coherent. Weather va...
Increasing urbanization and expansion of cities has led to intensification of the urban heat island (UHI). High consumption of fossil fuels and trapping of radiated heat leads to increase in surface temperature in and around city. Present research paper focuses on temperature variability over Mumbai and Ratnagiri cities, which are located in the sa...
In the present study, tendencies in temperature, precipitation, and snow cover area over the southwestern part of Iran have been assessed. The research mainly focused on snow cover-observed period which included the months of December, January, February, March, and April in the area. This research has been divided into two parts. First part consist...
This paper presents results of trend analysis and change point detection of annual and seasonal precipitation, and mean temperature (TM), maximum temperature (TMAX) and minimum temperature (TMIN) time series of the period 1950-2007. Investigations were carried out for 50 precipitation stations and 39 temperature stations located in southwest Iran....
Analysis of trends and projection of precipitation are of significance for the future development and management of water resource in southwest Iran. This research has been divided into two parts. The first part consists of an analysis of the precipitation over 50 stations in the study region for the period 1950-2007. The trends in this parameter w...
The present study intends to show the effect of climate change on trends and patterns of temperature over the southwestern part of Iran. The research has been divided into two parts. The first part consists of an analysis of the temperature trends of mean temperature (TM), maximum temperature (TMAX), and minimum temperature (TMIN) over 39 stations...
The Mula-Mutha watershed is located in the western Maharashtra which nests Pune urban agglomeration at its central part. For the assessment of impervious surface growth of this watershed, satellite images of 1989 and 2008 have been used. An integrated application of remote sensing techniques using Normalized Difference Vegetation Index (NDVI) and G...
The accuracy and reliability of trend analysis and model results in climate change studies vary according to the quality of data used. Non-climatic factors, such as relocation of station, change of instrument, etc. make data unrepresentative of the actual climate variation. This may influence the outcome of climatic and hydrological studies. Homoge...
Trans. Inst. Indian Geographers The present paper examines the inlet behaviour, in terms of the shifts in the inlet location over a span of last eight years (2002-2010), and its impact on the adjacent beach-dune complex. Valvati tidal inlet is observed to exhibit a strong instability in its location and is characterized by seasonal shifts in the eb...
Mula-Mutha basin is one of the rapidly urbanizing watersheds, wherein two major urban centers – Pune and Pimpri-Chinchwad have developed at an alarming rate in the last two decades or so. In order to bring out the changes in land use/land cover within this watershed, two images spanning over 19 years were analyzed. This data were supplemented by th...
1. Introduction The status and trends of urban land cover and land use significantly impact the quality of human life and urban ecosystems. Accurate, up-to-date and spatially explicit data on urban land cover and land use are required to support land management decision-making, ecosystem monitoring and urban planning (Ridd 1995). One of the most im...
Impervious surfaces can be defined as any material that prevents the infiltration of water into the soil. Impervious surfaces not only indicate urbanization, but also are major contributors to the environmental impacts of urbanization. As the natural landscape is paved over, a chain of events is initiated that typically ends in degraded water resou...
This book describes the use of remote sensing for monitoring surface urban heat island. Pune city, located in western India is taken as a case study to demonstrate how satellite data can be utilized effectively to study urban heat island and spatio-temporal variations in it. The book explains in detail the procedures to derive land surface temperat...
This article was submitted without an abstract, please refer to the full-text PDF file.
Investigations have been carried out by climatologists to find a possible link of climate change with anthropogenic activities by studying trends in different climatic parameters, particularly surface air temperature of densely populated cities. The present research aimed at quantifying the change in surface air temperature at India's four most pop...
Climatic change is one of the most important issues of present times. Unlike the greenhouse gases, which have a predominantly warming effect, atmospheric aerosols could either warm or cool the atmosphere depending upon the size, distribution and optical properties. Of all the climatic elements, temperature plays a major role in detecting climatic c...
Questions
Question (1)
After computation of NDVI over a region it has to be correlated with meteorology or hydrological indices. How to fulfill this?