Assessment on spatial extent of arid and semi-arid climatic zones of India using GIS

Authors

  • NISHA SAHU ICAR-National Bureau of Soil Survey & Land Use Planning, Nagpur-440033, India
  • G. P. OBI REDDY ICAR-National Bureau of Soil Survey & Land Use Planning, Nagpur-440033, India
  • B. DASH ICAR-National Bureau of Soil Survey & Land Use Planning, Nagpur-440033, India
  • NIRMAL KUMAR ICAR-National Bureau of Soil Survey & Land Use Planning, Nagpur-440033, India
  • S. K. SINGH ICAR-National Bureau of Soil Survey & Land Use Planning, Nagpur-440033, India

DOI:

https://doi.org/10.54386/jam.v23i2.66

Keywords:

Climate change, arid and semi-arid areas, interpolation, GIS

Abstract

In this study, a quantitative assessment of spatial extent of arid and semi-arid climatic zones of India was performed for the period from 1988 to 2018 using potential evapo-transpiration (PET) calculated by Modified Penman Method, estimated from global climate data sets. Climatic water balances computed for 625 stations across the country are used for classifying to bio-climate types based on moisture index and areas falling under arid climatic zones in India are delineated using ArcGIS 10.5. It was noticed a considerable changes in the country’s arid and semi-arid climatic zones between the two periods; 1992 and 2018. Overall, there has been a net percent change in hyper arid, typic arid and semi arid (dry) areas is 5.62, 1.62 and 7.17 percent, respectively. Dryness and wetness are increasing in different parts of the country. There is also change in rainfall, PET and moisture index over a period of time which is vital to determine aridity pattern of any region. Thus, results are of great significance for studying the assessment of temporal and spatial dry climatic water balance of India, which can help immensely in the management of water resources and sustainability of crop production under changing climatic conditions.

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Published

01-06-2021

How to Cite

NISHA SAHU, G. P. OBI REDDY, B. DASH, NIRMAL KUMAR, & S. K. SINGH. (2021). Assessment on spatial extent of arid and semi-arid climatic zones of India using GIS. Journal of Agrometeorology, 23(2), 189–193. https://doi.org/10.54386/jam.v23i2.66

Issue

Vol. 23 No. 2 (2021): June

Section

Research Paper

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