The same can be said for other annual statistics. Notably, the DBS procedure is able to reproduce the pattern of rainfall during different seasons. The monsoon season, which accounts for nearly 96% of rainfall (Rana et al., 2012), is well represented in the scaled data. The original values 85.1% and 85% in the raw NCAR_CCSM4 and NorESM1_M projections, respectively, selleck screening library after DBS application increase to 94.3% and 95.1%, as compared to 95.8% in the observations.

It can be observed in Table 2 that there is slight overestimation of rainfall in the post-monsoon season (especially for September), while rainfall in June is underestimated, indicating a delayed onset of the Monsoon season in the GCMs (see also Fig. 1). The DBS application is not able to correct this late onset of the monsoon in the GCMs (Fig. 1), and the case may be the same when we are analysing future projections. This can also be observed for individual months during the monsoon season, as a slight correctional shift in the amount of rainfall received compared to observed data. Extreme value statistics are represented in Table 3 and Fig. 2 for 1, 2, 3 and 7 consecutive days. In the case of raw GCM data the extremes are below the observed values (Fig. 2), which is to be expected considering the differing spatial scales of a GCM compared to www.selleckchem.com/products/Dapagliflozin.html a precipitation station. It can be observed from the table that the

mean (153 mm) and standard deviation (42.2 mm) of extreme events for all the observed data (1-day maximum) are well represented in the DBS-corrected GCM data, being 154 mm and 45.8 mm, respectively, for the NCAR_CCSM4 projection and 139.9 mm and 51.2 mm, respectively, for the NorESM1_M projection. The same can be observed for 2, 3 and 7-day maximum

values where there is marked improvement in the statistics after the scaling procedure. Observed 1-day Lognormal values for the 50 (284 mm) and 100 (309.6 mm) year return periods are heptaminol well represented in the scaled data, being 282 mm and 307 mm for NCAR_CCSM4 and 285 mm and 31 6 mm for NorESM1_M, respectively. Similarly, the 1-day Gumbel distribution values for the 50 (263 mm) and 100 (286 mm) year return periods are well represented in the scaled data, being 272 mm and 297 mm for NCAR_CCSM4 and 272 mm and 300 mm for NorESM1_M, respectively. Lognormal distribution is a continuous probability distribution whose logarithm is normally distributed whereas Gumbel come from distributions that are not bounded above but do have a full set of finite moments. Thus the two provides different facets of data maximum. In our results, there is a systematical difference between the values obtained from Lognormal and Gumbel distribution fitting wherein Lognormal values are always a bit higher than Gumbel in the observed, raw and bias-corrected datasets.