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Downscaling of Precipitation using Multiple Linear Regression over Rajasthan State

Poonam Mahla 1 * , A.K. Lohani2 , V. K. Chandola3 , Aradhana Thakur3 , C.D. Mishra4 and Aparajita Singh3

1 Department of Watershed Development and Soil Conservation, Laxmangarh, Sikar, Rajasthan India

2 National Institute of Hydrology, Jalvigyanbhawan, Roorkee, 247667 India

3 Department of Farm Engineering, Banaras Hindu University, Varanasi, 221005 Uttar Pradesh India

4 Collage of Agriculture, Fatehpur Shekhawati, SKNAU, Jobner, Rajasthan India

Corresponding author Email: poonammahla11@gmail.com

DOI: http://dx.doi.org/10.12944/CWE.14.1.09

Statistical downscaling method is mainly practised to relate atmospheric circulation to surface variables for forecast and prediction of the regional climate. As we know in Rajasthan drought is the foremost problem due to scanty of rainfall. The core objective of the present study stands to prognosis rainfall variation also assess the recital of Multiple Linear Regression (MLR) to access the variation in rainfall. The data were analyzed using higher resolution atmospheric data which includes daily National Centers for Environmental Prediction (NCEP)/ National Center for Atmospheric Research (NCAR) reanalysis data and daily mean climate model result intended for A2 and B2 scenarios of the Hadley Centre Climate Model (HadCM3) model. The period from 1961-1990 used as a baseline due to the availability of adequate period which is required to establish a reliable climatology. Results of the study show an increasing trend of future precipitation tended for both A2 and B2 scenarios. From the study, it has been found that MLR model is more superior to downscale precipitation in most districts under study area.

Downscaling; Scenarios; Temperature; Precipitation

Copy the following to cite this article:

Malha P, Lohani A. K., Chandola V. K., Thakur A, Mishra C. D, Singh A. Downscaling of Precipitation using Multiple Linear Regression over Rajasthan State. Curr World Environ 2019;14(1). DOI:http://dx.doi.org/10.12944/CWE.14.1.09

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Malha P, Lohani A. K., Chandola V. K., Thakur A, Mishra C. D, Singh A. Downscaling of Precipitation using Multiple Linear Regression over Rajasthan State. Curr World Environ 2019;14(1). Available from: https://bit.ly/2H8Usid

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