Publications

Patel, S; Joshi, JP; Bhatt, B (2017). An assessment of spatio-temporal variability of land surface temperature using MODIS data: A study of Gujarat state, India. GEOGRAPHY COMPASS, 11(4), UNSP e12312.

Abstract
Land surface temperature (LST) is temperature of the skin surface of land, which can be derived from satellite information or direct measurements. Satellite data provide consistent, continuous, and spatially distributed information on the Earth's surface conditions. The moderate resolution imaging spectro-radiometer instruments installed on the Aqua and Terra Earth observation satellites from NASA, have provided MOD11A2 Product, which contains daytime and nighttime LST in 1km spatial resolution. Short-term mean (STM) has been calculated using the daytime LST (2002-2011). LST for year 2012, 2013, and 2014 has been analyzed with reference to STM. The study has been carried out for summer season (March to June) that is also called as premonsoon season. Results show that the district of Saurashtra and Ahmadabad experience high LST during summer as compared to districts of South Gujarat. LST analysis is carried out at district and taluka level for entire Gujrat state. Twenty-five districts in Gujarat state contains 179 talukas. Study aims to assess inter and intra-annual and seasonal variability in LST time series data and explores the variation in STM LST and trends in the Gujarat state. The results showed that in 2012 was normal in terms of LST for the summer season, but in the year 2013 experienced above normal or higher LST as compare to STM in almost entire Gujarat during summer season. The analysis showed that the year 2014 summer season also experienced very high LST as compare to the STM. In the year 2013, months of March, April, May, and June, LST is higher than STM in 81, 38, 139, and 43 talukas, respectively.

DOI:
10.1111/gec3.12312

ISSN:
1749-8198