The current study aims to portray the specific weather patterns associated with hail falls in north-eastern Romania. This was done using multiple records data covering a long period of time (1981–2020). COST733 software enabled us assess objectively atmospheric circulation classification types for middle troposphere (500 hPa) and also ground level (sea pressure) over region. Based on these, we ...

Hanstrum et al. (2002) show from proximity soundings that cool-season tornadoes in southern Australia occur in environments characterised by relatively weak, but still positive, buoyancy in the lower troposphere, and strong wind shear from the surface to 1 – 1.5 km. Threshold criteria based on these proximity soundings (hereafter termed ‘proximity thresholds’) showed that a surface to 700 hPa l...

This paper used potential height field data published by the China National Climate Center and US NCEP reanalysis data. A study was conducted on a strong cold wave weather process in central eastern from October 2 to 5, 2022. The results show that this is air of “horizontal trough vertical” type east Novaya Zemlya Island. Cold passes through Russia Mongolia south, controlling northern China. pr...

Abstract This study examines the diurnal to interannual variations of stratiform cloud cover in May–October (1971–2019) from a 3‐hourly station database and ERA5 reanalyses over western equatorial Africa (WEA). The main local‐scale fraction genus clouds are synthesized into three canonical types (i.e., “clear,” “clear afternoon,” “cloudy” days). frequencies during cloudiest months (JJAS) mostly...

The geographical position of the Arctic front and two branches Polar over Europe was determined during period 1995–2015 using calculated grid fields thermal frontal parameter in troposphere layer 850–700 hPa. It revealed that climatological fronts changed both cold warm periods year comparison with climate data. most recent standard reference 1961–1990 recommended by WMO (WMO, 2017) used for co...

Analysis of the restriction endonuclease Hpa 1-beta globin gene linkage has been performed in a predominantly Arab population of North Africa possessing the sickle (beta A) gene is found associated with a 7.6 kilobase) or 7.0 kb Hpa 1 fragment (54/54 assignable beta A genes), whereas the beta S gene is found associated with a 13 kb Hpa 1 fragment (42/42 assignable beta S genes). The results dem...

When grown in 700 mM glycerol within the pH range 6.0 to 7.5, anaerobic pH-regulated cultures of Enterobacter agglomerans exhibited an extracellular accumulation of 3-hydroxypropionaldehyde (3-HPA). This phenomenon, which causes fermentation cessation, occurred earlier when pH was low. In contrast, substrate consumption was complete at pH 8. Levels of glycerol-catabolizing enzymes, i.e., glycer...

To further verify the ozone profile reliability of satellite remote sensing for the ozone valley over the Tibetan Plateau in the core area of the South Asian high in summer, we validate the ozone products from the microwave limb sounder (MLS) onboard the Aura satellite over the Tibetan plateau using electrochemical concentration cell (ECC) ozonesonde data of 2016 for Ngari, Tibet. The MLS versi...