The response of atmospheric blocks and the wave amplitude of midlatitude jets to changes in the midlatitude to pole, near-surface temperature difference (ΔT), is studied using an idealized dry general circulation model (GCM) with Held-Suarez forcing. Decreasing ΔT results in slower zonal winds, a mean state with reduced meridional gradient of the 500 hPa geopotential height (Z500), a smaller va...

Abstract European climate is associated with variability and changes in the mid-latitude atmospheric circulation. In this study, we aim to investigate potential future change circulation over Europe by using EURO-CORDEX regional projections at 0.11° grid mesh. particular, analyze 500-hPa geopotential height (Gph), wind speed mean sea level pressure (MSLP) addressing different warming levels of ...

The impact of climate change on extreme weather is one the most concerning problems. Climate could cause more frequent and unexpected weather. Still, synchronization features under are not fully understood. Here, we develop a network approach to study global patterns events based 500-hPa geopotential field. We find that positive event (PES) associated with tropical circulations in tropics; nega...

The quality of pressure distribution over the atmosphere of the sea level and geopotential altitude at different atmosphere layers affect on many climate and meteorology phenomena of the earth surface. One of the important meteorology phenomenon is the occurrence of frost phenomenon especially late spring frost. In this surrey, occurring late spring frost days and minimum temperature during the...

Ensemble prediction systems are an invaluable tool for weather forecasting. Practically, ensemble predictions obtained by running several perturbations of the deterministic control forecast. However, is associated with a high computational cost and often involves statistical post-processing steps to improve its quality. Here we propose use deep-learning-based algorithms learn properties system,...

In the context of climate change, extreme precipitation in semi-arid region happens frequently. How well models simulate remains unclear. Based on a WRF v4.3 simulation rainstorm event that occurred Qingyang, China 21 July 2019, applying Kain–Fritsch (KF), Grell–Devenyi (GD) and Bullock–Wang (BW) schemes, impacts different cumulus parameterizations simulations were analyzed, possible causes bia...

A probabilistic clustering technique is developed for classification of wintertime extratropical cyclone (ETC) tracks over the North Atlantic. We use a regression mixture model to describe the longitude-time and latitude–time propagation of the ETCs. A simple tracking algorithm is applied to 6-hourly mean sea-level pressure fields to obtain the tracks from either a general circulation model (GC...

The Botswana High is a prominent mid-tropospheric system that modulates rainfall over subtropical southern Africa, but the capability of global climate model (GCM) to reproduce it remains unknown. This study examines GCM with quasi-uniform resolution (Model Prediction Across Scales, hereafter MPAS) in simulating characteristics High. MPAS applied simulate at 240 km globe for period 1980–2010. r...

the quality of pressure distribution over the atmosphere of the sea level and geopotential altitude at different atmosphere layers affect on many climate and meteorology phenomena of the earth surface. one of the important meteorology phenomenon is the occurrence of frost phenomenon especially late spring frost. in this surrey, occurring late spring frost days and minimum temperature during the...