introductionmany aspect strongly influence regional climate includes localized surface processes, large-scale patterns, especially mid and upper level tropospheric circulation and many factors control precipitation in the west of iran includes location of emigrate westerly winds systems, jet streams location, humidity flux and topography. upper tropospheric jet stream constitutes a significant ...

| H igh sea surface temperature (SST) is generally required for deep convection that reaches the tropopause. In the current climate, the SST threshold for deep convection is somewhere around 26°–27°C, depending upon region and season (Gra-ham and Barnett 1987; Waliser et al. 1993). Over such warm oceans, SST changes cause deep convective adjustment , which in turn excites the dynamic response o...

Increasing levels of anthropogenic aerosols in Asia have raised considerable concern regarding its potential impact on the global atmosphere, but the magnitude of the associated climate forcing remains to be quantified. Here, using a novel hierarchical modelling approach and observational analysis, we demonstrate modulated mid-latitude cyclones by Asian pollution over the past three decades. Re...

Although it is well established that the large-scale wind drives much of the world's ocean circulation, the contribution of the wind energy input at mesoscales (10-200 km) remains poorly known. Here we use regional simulations with a coupled high-resolution atmosphere-ocean model of the South Atlantic, to show that mesoscale ocean features and, in particular, eddies can be energized by their th...

The Tibetan Plateau is an important water source in Asia. As the "Third Pole" of the Earth, the Tibetan Plateau has significant dynamic and thermal effects on East Asian climate patterns, the Asian monsoon process and atmospheric circulation in the Northern Hemisphere. However, little systematic knowledge is available regarding the changing climate system of the Tibetan Plateau and the mechanis...

We investigate how to use specification mining techniques for program anomaly analysis. We assume the input of positive traces (without execution anomalies) and negative traces (with execution anomalies). We then partition the traces into the following clusters: a positive cluster that contains all positive traces and some negative clusters according to the characteristics of trace anomalies. W...

1 Annual-mean tropospheric circulation change in global warming is studied by 2 comparing the response of an atmospheric general circulation model (GCM) to a spatial-3 uniform sea surface temperature (SST) increase (SUSI) with the response of a coupled 4 ocean-atmosphere GCM to increased greenhouse gas concentrations following the A1B 5 scenario. In both simulations, tropospheric warming follow...

In this study, we focus on the effects of fuel bed representation and fire heat smoke distribution in a coupled fire-atmosphere simulation platform for two landscape-scale fires: 2018 Camp Fire 2021 Caldor Fire. The WRF-Fire currently includes only surface fuels. Thus, enhance model by adding canopy characteristics release, which method to calculate generated from consumption is developed imple...

Understanding the development and variation of the atmospheric circulation regimes driven by the Atlantic multidecadal oscillation (AMO) is essential because these circulations interact with other forcings on decadal and interannual time scales. Collectively, they determine the summer (June, July, and August) precipitation variations for North America. In this study, a general circulation model...