Using a high-resolution regional climate model RegCM3, station and satellite observations, we have studied the spatial heterogeneity of climate variability over Java Island, Indonesia. Besides the well-known anomalous dry conditions that characterize the dry and transition seasons during an El Niño year, analysis of regional model output reveals a wet mountainous south versus dry northern plain...

This study investigates the climatology and variability of summer aerosol optical depth (AOD) over Arabian Peninsula (AP) using a long-term high-resolution Weather Research Forecasting model coupled with chemistry module (WRF-Chem) simulation, available ground-based satellite observations, reanalysis products from 2008 to 2018. The simulated spatial distribution AOD agrees well observations AP,...

Abstract In coastal regions, the complex interaction of synoptic-scale dynamics and breeze regimes influence local atmospheric circulation, permitting to distinguish typical yet alternative patterns. this paper, k-means clustering algorithm is applied hourly time series wind intensity direction collected by in-situ weather stations at seven locations within 30 km from western coastline central ...

MEDEX is a fuzzy expert system for nowcasting gale-force winds in the Mediterranean. Kuciauskas et al. (1996) and Hadjimichael et al. (1996) have described, respectively, the general development and fuzzy aspects of MEDEX, which focuses on topographically-channeled winds that occur under certain synoptic conditions. As such, a key synoptic input to MEDEX is the 500 mb circulation pattern affect...

A strong relationship is observed between synoptic weather systems and atmospheric forcing of the ocean as estimated from buoy measurements made on the North Carolina inner shelf during August and October-November 1994 as part of the Coastal Ocean Processes (COOP) Inner Shelf Study. Synoptic variation (timescales of days to weeks) in the meteorological time series was primarily associated with ...

A sea-breeze event in south-west Western Australia is simulated using the Regional Atmospheric Modelling System (RAMS) version 6.0. The model is evaluated against high resolution soundings as well as station observations and is shown to reproduce the qualitative features of the sea-breeze well. Sensitivity tests are carried out to investigate the effects of historical land-cover change and chan...

[1] Differences between morning and evening winds from QuikSCAT scatterometer measurements are analyzed to diagnose the diurnal variability of the wind over the ocean. A statistically significant signal, associated with the sea breeze, is present along most of the world’s coastlines. Significant diurnal variability is also present mid-ocean in the easterly trade wind belts.

Numerical simulations are conducted of geostrophically balanced flow over an isolated mountain cut by a horizontal gap. The relative importance of the along-gap synoptic-scale pressure gradient and terraininduced mesoscale circulations for the generation of gap winds was examined by changing the direction of the synoptic-scale wind relative to the topography. In all cases, the forcing associate...

Abstract The continually changing atmospheric conditions over densely populated coastal urban regions make it challenging to produce models that accurately capture the complex interactions of anthropogenic and environmental emissions, chemical reactions, unique meteorological processes, such as sea- land-breeze circulations. purpose this study is determine identify influence synoptic-scale wind...