This study provides a comprehensive evaluation of seven Earth System Models (ESMs) from the Coupled Model Intercomparison Project Phase 5 in present climate conditions from a downscaling perspective, taking into account the requirements of both statistical and dynamical approaches. ECMWF’s ERA-Interim reanalysis is used as reference for an evaluation of circulation, temperature and humidity var...

Abstract. Over the years, higher-resolution regional climate model simulations have emerged owing to large increase in computational resources. The 12 km resolution from Coordinated Regional Climate Downscaling Experiment for European domain (EURO-CORDEX) is a reference, which includes larger multi-model ensemble at continental scale while spanning least 130-year period. These are computational...

Abstract This study assesses the performance of large ensembles global (CMIP5, CMIP6) and regional (CORDEX, CORE) climate models in simulating extreme precipitation over four major river basins (Limpopo, Okavango, Orange, Zambezi) southern Africa during period 1983–2005. The ability model to simulate seasonal indices is assessed using three high-resolution satellite-based datasets. results show...

An effort is made to implement a regional earth system model (RESM); ROM, over CORDEX-South Asia (SA). The added value of RESM assessed for mean precipitation, its variability (intraseasonal interannual), extremes, and associated processes. In this regard, ROM’s fields are compared with the respective standalone version (REMO), models belonging coupled intercomparison project (CMIP5 CMIP6), cli...

Abstract Internal variability, multiple emission scenarios, and different model responses to anthropogenic forcing are ultimately behind a wide range of uncertainties that arise in climate change projections. Model weighting approaches generally used reduce the uncertainty related choice model. This study compares three multi-model combination approaches: simple arithmetic mean two recently dev...

For the first time for CORDEX-South Asia, a high-resolution regional earth system model (ROM) is adopted to assess impact of horizontal resolution (0.22° and 0.11°) in simulating Indian summer monsoon rainfall (ISMR) underlying spatiotemporal variability. ROM at both resolutions bears close resemblance observations mean precipitation climatology compared other climate models (RCMs) participated...