varunayan: Download and Process 'ERA5', IMD, 'HadEX3' and 'CRU TS' Data

Download climate data for a bounding box, polygon or point and return tidy tables. Sources are the 'ERA5' reanalysis (Hersbach et al. (2020) <doi:10.1002/qj.3803>) from the 'Copernicus' Climate Data Store <https://cds.climate.copernicus.eu/>, India Meteorological Department (IMD) gridded rainfall and temperature (Pai et al. (2014) <doi:10.54302/mausam.v65i1.851>), 'HadEX3' climate extremes (Dunn et al. (2020) <doi:10.1029/2019JD032263>) and 'CRU TS' (Harris et al. (2020) <doi:10.1038/s41597-020-0453-3>). Computes heat stress indices, including wet-bulb globe temperature (Liljegren et al. (2008) <doi:10.1080/15459620802310770>) and the Universal Thermal Climate Index (Bröde et al. (2012) <doi:10.1007/s00484-011-0454-1>), and heatwave indicators, including the Excess Heat Factor (Nairn and Fawcett (2015) <doi:10.3390/ijerph120100227>).

install.packages("varunayan")

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