Evaluation of regional climate models ALARO-0 and REMO2015 at 0.22° resolution over the CORDEX Central Asia domain

Abstract. To allow for climate impact studies on human and natural systems, high-resolution information is needed. Over some parts of the world plenty regional simulations have been carried out, while in other regions hardly any available. The CORDEX Central Asia domain one these regions, this article describes evaluation two models (RCMs), REMO ALARO-0, that were run first time at a horizontal resolution 0.22? (25 km) over region. output ERA-Interim-driven RCMs compared with different observational datasets 1980–2017 period. scores better temperature, whereas ALARO-0 model prevails precipitation. Studying specific subregions provides deeper insight into strengths weaknesses both CAS-CORDEX domain. For example, has difficulties simulating temperature northern part domain, particularly when snow cover present, poorly simulates annual cycle precipitation Tibetan Plateau. minimum maximum demonstrates underestimate daily range. This study aims to evaluate whether provide reliable modeling environmental assessment applications. Depending evaluated season variable, it demonstrated produced data can be used several subregions, e.g., western autumn. At same time, bias adjustment required where significant biases identified.