This study developed a methodology to temporally classify large scale, upper level atmospheric conditions over North America, utilizing a newly-developed upper level synoptic classification (ULSC). Four meteorological variables: geopotential height, specific humidity, and u- and v-wind components, at the 500 hPa level over North America were obtained from the NCEP/NCAR Reanalysis Project datase...

Abstract This study investigates the spatiotemporal characteristics of human-perceived temperature (HPT) data, which describe joint effects and humidity on human body, examines related large-scale atmospheric circulation patterns for summer season (July–August) in South Korea using trend composite analyses. The increasing HPT was stronger than that maximum, mean, minimum temperatures during 198...

Annual and seasonal correlations between temperature and both specific and relative humidity are presented based on radiosonde station data over the tropical Pacific Ocean and North America. Results are presented for the surface and the 850-, 700-, and 500-hPa levels. The correlations between anomalies of temperature and relative humidity are generally negative, and those between temperature an...

Global Positioning System (GPS) radio occultation (RO) measurements are proven highly useful for observing the thermal structure of the troposphere and stratosphere. Here we use RO data for the first time to derive climatological wind fields from sampling error-corrected geopotential height fields on isobaric surfaces from about 800 hPa to 3 hPa. We find monthly mean RO geostrophic wind and gra...

Abstract. Using a new high-resolution air quality reanalysis dataset for China five winters from December 2013 to February 2018, we examine the influence of large-scale circulation on daily PM2.5 variability through its direct effect key regional meteorological variables over three major populated regions China: Beijing–Tianjin–Hebei (BTH), Yangtze River Delta (YRD) and Pearl (PRD). In BTH, sha...

Mid-latitude mountain snowpacks are highly vulnerable to climate warming. Past and future hydroclimate changes require a thorougout knowledge of snow ablation physical processes the associate drivers. In this work we provide first spatio-temporal characteritzation energy available for (Qm) in Pyrenees period 1959–2020, during main season (March June) low (1200 m), mid (1800 m) high (2400 elevat...

Abstract In this study, global reanalysis dataset fields of meteorological parameters (temperature and geopotential height at different atmospheric levels) in the period 1948–2020, were used to characterize main dynamic thermodynamic features African dust outbreaks (ADO) produced over regions Iberian Peninsula Balearic Islands. The record ADO previously identified with a tried-and-true procedur...

Abstract Coastal flooding is one of the most costly and deadly natural hazards facing US Mid-Atlantic region today. Impacts in this heavily populated economically significant are caused by a combination location’s exposure forcing from storms sea-level rise. Tropical cyclones (TCs) mid-latitude (ML) weather systems each have extreme coastal region. Skew surge was computed over tidal cycle for p...

Within the present study we shed light on the question whether objective circulation patterns (CP) classified from either the 500 HPa or the 700 HPa level may serve as predictors to explain the spatio-temporal variability of monsoon rainfall in the Anas catchment in North West India. To this end we employ a fuzzy ruled based classification approach in combination with a novel objective function...