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Spatio-temporal changes in temperature over India


Affiliations
1 Space Applications Centre, Ahmedabad 380 015, India
 

A study was taken up to identify annual changes in temperature at a scale of 1° × 1°. For this study, daily (maximum and minimum) temperature data for 45 years (1969–2013) at a grid size of 1° × 1°, prepared by the India Meteorological Department, Pune were used. The identification of change was based on statistical trend analysis. From the analysis, it can be concluded that the dominant tendency over the India land mass is of warming, and colder months of the year show more warming. Analysis of temperature difference (TD) brought out the existence of contiguous and large spatial clusters of shrinking and expanding TD. Further analysis is required to factor the variability in temperature due to anthropogenic changes.

Keywords

Annual changes, spatio-temporal patterns, temperature difference, trend analysis
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  • Spatio-temporal changes in temperature over India

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Authors

Markand Oza
Space Applications Centre, Ahmedabad 380 015, India
C. M. Kishtawal Kishtawal
Space Applications Centre, Ahmedabad 380 015, India

Abstract


A study was taken up to identify annual changes in temperature at a scale of 1° × 1°. For this study, daily (maximum and minimum) temperature data for 45 years (1969–2013) at a grid size of 1° × 1°, prepared by the India Meteorological Department, Pune were used. The identification of change was based on statistical trend analysis. From the analysis, it can be concluded that the dominant tendency over the India land mass is of warming, and colder months of the year show more warming. Analysis of temperature difference (TD) brought out the existence of contiguous and large spatial clusters of shrinking and expanding TD. Further analysis is required to factor the variability in temperature due to anthropogenic changes.

Keywords


Annual changes, spatio-temporal patterns, temperature difference, trend analysis

References





DOI: https://doi.org/10.18520/cs%2Fv109%2Fi6%2F1154-1158