P K Joshi

Prof. P K Joshi

School of Environmental Sciences (SES) and Concurrent Faculty, Special Centre for Disaster Research, Jawaharlal Nehru University, New Delhi 110 067, India
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Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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27 February 2015 in Remote Sensing
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Journal Article
Open access
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Parth Sarathi RoyParth Sarathi Roy
Parth Sarathi Roy
ARArijit Roy
Arijit Roy
P K JoshiP K Joshi
P K Joshi
MKManish P. Kale
Manish P. Kale
VSVijay K. Srivastava
Vijay K. Srivastava
DKDeepak Kushwaha
Deepak Kushwaha
India has experienced significant Land-Use and Land-Cover Change (LULCC) over the past few decades. In this context, careful observation and mapping of LULCC using satellite data of high to medium spatial resolution is crucial for understanding the long-term usage patterns of natural resources and facilitating sustainable management to plan, monitor and evaluate development. The present study utilizes the satellite images to generate national level LULC maps at decadal intervals for 1985, 1995 and 2005 using onscreen visual interpretation techniques with minimum mapping unit of 2.5 hectares. These maps follow the classification scheme of the International Geosphere Biosphere Programme (IGBP) to ensure compatibility with other global/regional LULC datasets for comparison and integration. Our LULC maps with more than 90% overall accuracy highlight the changes prominent at regional level, i.e., loss of forest cover in central and northeast India, increase of cropland area in Western India, growth of peri-urban area, and relative increase in plantations. We also found spatial correlation between the cropping area and precipitation, which in turn confirms the monsoon dependent agriculture system in the country. On comparison with the existing global LULC products (GlobCover and MODIS), it can be concluded that our dataset has captured the maximum cumulative patch diversity frequency indicating the detailed representation that can be attributed to the on-screen visual interpretation technique. Comparisons with global LULC products (GlobCover and MODIS) show that our dataset captures maximum landscape diversity, which is partly attributable to the on-screen visual interpretation techniques. We advocate the utility of this database for national and regional studies on land dynamics and climate change research. The database would be updated to 2015 as a continuing effort of this study.

1 August 2019 in Journal of Environmental Management
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Journal Article
Closed access
Srikanta SannigrahiSrikanta Sannigrahi
Srikanta Sannigrahi
SCSuman Chakraborti
Suman Chakraborti
P K JoshiP K Joshi
P K Joshi
Saskia KeesstraSaskia Keesstra
Saskia Keesstra
SSSomnath Sen
Somnath Sen
KDKinh Bac Dang
Kinh Bac Dang

14 October 2009 in Regional Environmental Change
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Journal Article
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MMMadhushree Munsi
Madhushree Munsi
SMSumedha Malaviya
Sumedha Malaviya
GOGracy Oinam
Gracy Oinam
P K JoshiP K Joshi
P K Joshi

1 November 2018 in Climatic Change
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Journal Article
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RSRoopam Shukla
Roopam Shukla
Ankit AgarwalAnkit Agarwal
Ankit Agarwal
KSKamna Sachdeva
Kamna Sachdeva
JKJuergen Kurths
Juergen Kurths
P K JoshiP K Joshi
P K Joshi

22 November 2012 in Journal of the Indian Society of Remote Sensing
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Journal Article
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RSRicha Sharma
Richa Sharma
P K JoshiP K Joshi
P K Joshi

7 March 2018 in Regional Environmental Change
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Journal Article
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ACAnusheema Chakraborty
Anusheema Chakraborty
Somidh SahaSomidh Saha
Somidh Saha
KSKamna Sachdeva
Kamna Sachdeva
P K JoshiP K Joshi
P K Joshi