The global climate models (GCMs) performances of the recently released Coupled Model Intercomparison Project phase 6 (CMIP6) compared to its predecessor, CMIP5, are evaluated anticipate expected changes in over Egypt. Thirteen GCMs and their multi-model ensemble (MME) both CMIPs were used for this purpose. future projections two radiative concentration pathways (RCP 4.5 8.5) shared socio-econom...

Abstract This is the first study to show global Cut-off Low (COL) activity in 46 models participating Coupled Model Intercomparison Project Phase 5 (CMIP5) and 6 (CMIP6). The COL historical simulations for period 1979–2005 obtained from CMIP5 CMIP6 their ensembles are compared with ERA5 reanalysis using an objective feature-tracking algorithm. results that simulate spatial distribution of COLs ...

Abstract Projecting the climate change impacts on hydrology and water resources relies scenarios simulated by general circulation models (GCMs), which requires a systematic comprehensive assessment of GCMs’ simulation performances at regional scale. This study evaluates precipitation over Hanjiang River Basin (HRB) six from Phase 6 Coupled Model Intercomparison Project (CMIP6), corresponding pr...

Recent studies have examined tropical upper tropospheric warming by comparing coupled atmosphere–ocean global circulation model (GCM) simulations from Phase 3 of the Coupled Model Intercomparison Project (CMIP3) with satellite and radiosonde observations of warming in the tropical upper troposphere relative to the lower-middle troposphere. These studies showed that models tended to overestimate...

Recent improvements in the theoretical understanding of the relationship between tropical cyclones (TCs) and their large-scale environments have resulted in significant improvements in the skill for forecasting TC activity at daily and seasonal time-scales. However, future changes in TC activity under a warmer climate remain uncertain, particularly in terms of TC genesis locations and subsequen...

Arctic sea ice thickness distributions from models participating in the World Climate Research Programme Coupled Model Intercomparison Project Phase 5 (CMIP5) are evaluated against observations from submarines, aircraft and satellites. While it is encouraging that the mean thickness distributions from the models are in general agreement with observations, the spatial patterns of sea ice thickne...

Mekong River Basin. The Coupled Model Intercomparison Project Phase 6 (CMIP6) recently announced an updated version of general circulation models (GCMs). This study investigated the performance improved CMIP6 over those CMIP5 with respect to precipitation and flood representations in Basin (MRB). correlation error comparison from referenced exhibited a significant improvement peak value represe...

Northern South America is among the regions with highest vulnerability to climate change. General Circulation Models (GCMs) are different tools considered analyze impacts of In particular, GCMs have been proved provide useful information, although they exhibit systematic biases and fail in reproducing regional climate, particularly terrains complex topography. This work evaluates performance in...