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The Hutchinson Drought Index reflects agricultural droughts using only rainfall data http://ivanhanigan.github.io/Hutchins…
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The Hutchinson Drought Index The Hutchinson Drought Index (or Drought Severity Index) is a climatic drought index that was designed to reflect agricultural droughts using only rainfall data. This project includes an R package in the master branch and the documentation on the gh-pages branch. The index was invented by Professor Mike Hutchinson at the ANU in 1992 and this project includes R codes written by Ivan Hanigan to describe the calculations and also to download data to play with. Casual readers will probably want to go straight to Hutchinson's original report https://github.com/ivanhanigan/HutchinsonDroughtIndex/blob/master/inst/doc/HutchinsonDroughtIndex-original.pdf Readers wishing to reproduce the data analysis can do so by running the 'go.r' script (see the Specification.txt file for explanations of the structure of the code). Copyright is the GNU General Public License version 2 WITHOUT ANY WARRANTY, Ivan C Hanigan <email@example.com> and Michael F Hutchinson. Please cite the original 1992 paper as well as this web repository as: 1. Smith, D. I, Hutchinson, M. F, & McArthur, R. J. (1992) Climatic and Agricultural Drought: Payments and Policy. (Centre for Resource and Environmental Studies, Australian National University, Canberra, Australia). http://fennerschool-research.anu.edu.au/spatio-temporal/publications/cres_paper1992.pdf 2. Hanigan, IC. 2012. The Hutchinson Drought Index Algorithm [Computer Software]. https://github.com/ivanhanigan/HutchinsonDroughtIndex Financial support was provided by Professor Tony McMichael's "Australia Fellowship" from the the National Health and Medical Research Council, via the National Centre for Epidemiology and Population Health, Australian National University. The citations for the datasets used in this demonstration are: 1. Bureau of Meteorology High Quality Monthly precipitation data downloaded on 2012-01-09 from ftp://ftp.bom.gov.au/anon/home/ncc/www/change/HQmonthlyR/HQ_monthly_prcp_txt.tar 2. Australian Bureau of Statistics Statistical Divisions 2006 downloaded on 2012-01-09 from http://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/1259.0.30.0022006?OpenDocument Ivan Hanigan 2012-02-24