نتایج جستجو برای: era5
تعداد نتایج: 1196 فیلتر نتایج به سال:
The wind profiler radar (WPR) network in Anhui Province China completed the construction 2019 to improve warning capacity for meteorological disasters. To verify its proper performance, vertical profiles of horizontal winds were compared with ERA5 reanalysis data from January December 2021. results show that WPRs demonstrate good capability measuring atmospheric due their high collection rate (...
The Fire Weather Index (FWI) is used to assess meteorological fire danger worldwide. It has been argued that it lacks an atmospheric instability term. A new enhanced FWI (FWIe) was recently developed incorporating in the form of Continuous Haines (CHI). Here, first climatological and evolution analysis these indexes performed using ERA5 data for 1980–2020 period. There a prevalence higher value...
Abstract Atmospheric moisture is a key component in the water cycle and radiative transfer. In this study, comprehensive picture of air climatology related physical processes presented for first time circumpolar area south 50°S. The results are based on most modern global reanalysis, ERA5, which manages reasonably well to close Antarctic budget. We show that over ocean transient cyclones have d...
Abstract Meteorological extremes on the seasonal time scale have received increased attention due to their relevance for society and economy. A recently developed approach identify is applied here ERA5 reanalyses from 1950 2020 hot cold, wet dry, stormy calm extreme seasons globally. The consists of (i) fitting a statistical model mean values (of temperature, precipitation, wind speed) at each ...
By analyzing the European Centre for Medium-Range Weather Forecasts reanalysis version 5 (ERA5) dataset, we found increased frequency of marine heatwaves (MHWs) in East Asian marginal seas (EAMS) during boreal summer (June-July-August) recent past. To examine which processes are responsible upward trend MHW occurrence, performed three numerical simulations using Modular Ocean Model (MOM5) force...
Resumo A principal limitação para estudos climáticos em escala regional no Brasil é a disponibilidade de dados meteorológicos observados termos quantidade, qualidade e da sua distribuição espacial. Dados velocidade vento reanálises climáticas são utilizadas diversos modelagem climatológica hidrológica, porém destes sobre o território brasileiro ainda desconhecida considerando produtos diária re...
Astronomical seeing is important for monitoring the atmospheric environment, observation scheduling and management, selecting astronomical sites. This study first attempts to establish a near-global map by employing fifth European Centre Medium-Range Weather Forecasts Reanalysis (ERA5) data combined with estimated model. Then, some example sites’ results from ERA5 were compared against balloon-...
Using the International Best Track Archive for Climate Stewardship (IBTrACS) dataset, this study assessed surface wind fields from high spatial resolution Synthetic Aperture Radar (SAR) observations, fifth generation ECMWF reanalysis global climate and weather (ERA5) data Tropical Cyclone Winds Inflow Angle Asymmetry (TCIAA) model. The results showed that SAR are sufficient to reveal field near...
Abstract The Tibetan Plateau (TP), also called the Third Pole, is considered to be “the world water tower”. northwestern TP (NWTP), which has an average elevation higher than 4800 m, arid region where summer precipitation largely overestimated by ERA5 global reanalysis product. We hypothesize that this wet bias mainly caused unrealistic lower-level winds trigger strong convection over region; i...
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