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...

Using ERA5 reanalysis data from March 2021 to February 2022 and the China Meteorological Administration Global Forecasting System (CMA-GFS) operational forecast dataset of 500 hPa geopotential height in Northern Hemisphere same period, multiscale features errors are analyzed. The results indicate that anomaly correlation coefficient (ACC) its components keep decreasing with extension lead time,...

This work aimed to analyze the use of different approaches link normal heights obtained via Global Navigation Satellite System (GNSS)/Global Geopotential Model (GGM) refined by RTM technique Brazilian Vertical Data (Imbituba Datum – IBVD and Santana SBVD). Specifically, it analyzed based on weighted mean discrepancies between height anomalies, zero- level geopotential value, Geodetic Boundary V...

Abstract Four meteorological components (geopotential height Z , air temperature T dew point Td, and relative humidity RH) collected from ERA-5 ERA-Interim were compared with the observations of nine radiosonde stations different climatic changes, at isobaric levels (850, 700, 500, 200 hPa) during period 2000–2017, in order to assess accuracy aforementioned reanalysis datasets. The results show...

The maximum deepening rate per cyclone track is determined by the maximum height drop at the center of the cyclone (500-hPa low) on the basis of all the 6-h successive steps in its life cycle. The geopotential height gradient is calculated over the entire low area and the calculation continued with the variation of the gradient in the successive steps. The maximum intensification rate per cyclo...

Using satellite altimetry derived mean sea level (MSL), geopotential coefficients in terms of ellipsoidal harmonics from recent satellite gravimetry missions, gravity potential values over a grid consisting of 33,486 points at global sea areas are computed and the mean value of the gravity potential at MSL is calculated as a new geoid’s potential value. In this way we have exactly followed the ...

Abstract. Even the most advanced climate models struggle to reproduce observed wintertime circulation of atmosphere over North Atlantic and western Europe. During winter, large-scale motions this particularly challenging region are dominated by eddy-driven highly non-linear flows, whose low-frequency variability is often studied from perspective regimes – a small number qualitatively distinct a...