Temporal and Spatial Analysis of Rainfall and Associated Normalized Difference Vegetation Index (NDVI) over the Pune District, India


Abstract

Introduction: With increasing population, demands for agricultural products are increasing in tropical countries like India. However, vegetation cover is decreasing to meet the human requirements. Rainfall through hydrological cycle plays an important role in the vegetation growing cycle. It acts as a determining factor for agriculture and food security. Since agricultural products are monsoon rainfall dependent, it is essential to know the changes in the vegetation cover and trends and its relationship with the climate change. This will be helpful in accurate prediction of vegetation cover and therefore in management of loss and damages to the economy of the country. Therefore, a detailed understanding of the relationship between rainfall variability and vegetation cover is very important.
Method: An attempt has been made in this paper to study the distribution of rainfall over the Pune district (Maharashtra state, India) and its impact on NDVI during 1971-2012. Analysis of data was carried out by programming, ERDAS & GIS technique using Landsat MSS and Resourcesat data and Microsoft Excel functions.
Results: The results indicated that the NDVI values changed in relation to different amount of precipitation showing that about 54% and 13% of area remained barren during 1972 and 2009 drought years respectively.
Conclusion: The NDVI has been used to monitor the response of vegetation cover to rainfall and this showed that vegetation cover has drastically reduced during drought years of1972 and 2009, whereas there is increase in vegetation cover during good rainfall years of 1975 and 2010. The comparative study of rainfall pattern and NDVI will be useful to farmers (agricultural section), engineers (irrigation sector) and water resources management point of view.

Keywords

Seasonal and Annual Rainfall; Drought and Excess Rainfall; NDVI; Pune

Temporal and Spatial Analysis of Rainfall and Associated Normalized Difference Vegetation Index (NDVI) over the Pune District, India


Authors

Shobha S. Nandargi

E-mail: [email protected]
Affiliation: Scientist, Indian Institute of Tropical Meteorology, Pune, India

Abhijeet S. Kamble

Affiliation: MSc, Department of Geo-Informatics, Pune University, Pune, India

Temporal and Spatial Analysis of Rainfall and Associated Normalized Difference Vegetation Index (NDVI) over the Pune District, India


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Temporal and Spatial Analysis of Rainfall and Associated Normalized Difference Vegetation Index (NDVI) over the Pune District, India


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Vancouver

Nandargi S, Kamble A. Temporal and Spatial Analysis of Rainfall and Associated Normalized Difference Vegetation Index (NDVI) over the Pune District, India. Focus on Sciences. 2106; 3(4):1-16


APA

Nandargi, S., & Kamble, A. (2106). Temporal and Spatial Analysis of Rainfall and Associated Normalized Difference Vegetation Index (NDVI) over the Pune District, India. Focus on Sciences, 3(4), 1-16.


Chicago

Shobha S. Nandargi, and Abhijeet S. Kamble "Temporal and Spatial Analysis of Rainfall and Associated Normalized Difference Vegetation Index (NDVI) over the Pune District, India". Focus on Sciences 3, no. 4 (2106).

Temporal and Spatial Analysis of Rainfall and Associated Normalized Difference Vegetation Index (NDVI) over the Pune District, India


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