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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/17860
Title: Dynamics of thermal inertia over highly urban city: A case study of Delhi
Authors: Berwal S.
Kumar D.
Pandey A.K.
Singh V.P.
Kumar R.
Kumar K.
Esch T.
Erbertseder T.
Chrysoulakis N.
Published in: Proceedings of SPIE - The International Society for Optical Engineering
Abstract: This paper focuses on thermal inertia estimation of Delhi and its surrounding areas during summer season based on the diurnal temperature variations and albedo information of the region retrieved from satellite data. The study involves mapping of day and night time surface temperatures and the blue sky albedo (actual albedo on ground) over the study region using Moderate Resolution Imaging Spectroradiometer (MODIS) datasets. The study reveals that Delhi is cooler than its surrounding regions during the day time, showing the formation of cool island. On the contrary, temperature inside the city is much higher than its surrounding rural regions during the night time, thus confirming the formation of nocturnal heat island. The day and night time temperature maps are then used to obtain the diurnal temperature range and together with albedo maps of the study region, are used to estimate the thermal inertia over the region. The study reveals that the dense built-up urban area of Delhi has higher thermal inertia than that of the surrounding rural areas during the summer season. The spatial variation of thermal inertia over the region is found to explain the occurrence of day-time cool island reasonably well. © 2016 SPIE.
Citation: Proceedings of SPIE - The International Society for Optical Engineering, (2016)
URI: https://doi.org/10.1117/12.2241741
http://repository.iitr.ac.in/handle/123456789/17860
Issue Date: 2016
Publisher: SPIE
Keywords: Albedo
Land Surface Temperature
MODIS
Thermal Inertia
Urbanization
ISBN: 9.78E+12
ISSN: 0277786X
Author Scopus IDs: 56412004800
57202478211
56766280600
57201511336
55627876429
7402676131
Author Affiliations: Berwal, S., School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
Kumar, D., Department of Environmental Sciences, Central University of Jammu, Jammu and Kashmir, India
Pandey, A.K., School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
Singh, V.P., School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
Kumar, R., School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
Kumar, K., School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
Corresponding Author: Berwal, S.; School of Environmental Sciences, Jawaharlal Nehru UniversityIndia
Appears in Collections:Conference Publications [ME]

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