I have 13 CMIP6 for query definition grid label (gn , gr, gr1), set member to r1i1p1f1(since there is a number of member for each models, may this impact my work) , variable (pr, tasmax, tasmin) with scenario (hist, SSP126, 245, & 585). Insight CMIP6 processing:- downscaling, bias correction, and regridding are matter GCM output (source from literature work). My purpose of need is for hydrological impact. So, I'm in need scientific concept, methodologies, tools from climate expert.