Monthly total precipitation: ANUClimate 1.0, 0.01 degree, Australian Coverage, 1970-2012
Monthly total precipitation of each month, for the Australian continent between 1970-2012. Monthly rainfall totals are useful for estimation of soil moisture for plant growth and surface runoff via soil water balance modelling. Modelled by expressing each monthly value as a normalised anomaly with respect to the gridded 1976-2005 mean for each month as provided by eMAST_ANUClimate_mmn_rain_v1m0_1976_2005. The monthly anomalies were interpolated by trivariate thin plate smoothing spline functions of longitude, latitude and vertically exaggerated elevation using ANUSPLIN Version 4.5. Station elevations were 0.05 degree local averages of grid values from the GEODATA 9 second DEM version 3 as provided by eMAST_ANUClimate_fx_el05_v1m0. Monthly data values were calculated from Bureau of Meteorology daily data at stations where there were no missing observations and any accumulated records were wholly within the month, giving an average of 6410 data points per month between 1970 and 2012. Automated quality assessment rejected on average 16 data values per month (0.2%) with extreme studentised residuals. The mean absolute value of all individual cross validation residuals provided by the spline analysis is 10.9 mm (18% of the overall mean). A comprehensive assessment of the analysis and the factors contributing to the quality of the final interpolated monthly rainfall grids is in preparation. Citation: Michael Hutchinson, Jennifer Kesteven, Tingbao Xu, 2014. Monthly total precipitation: ANUClimate 1.0, 0.01 degree, Australian Coverage, 1970-2012. Australian National University, Canberra, Australia. Obtained from http://dap.nci.org.au, made available by the Ecosystem Modelling and Scaling Infrastructure (eMAST, http://www.emast.org.au) of the Terrestrial Ecosystem Research Network (TERN, http://www.tern.org.au). Accessed [Date accessed].