نتایج جستجو برای: postcrona era
تعداد نتایج: 83380 فیلتر نتایج به سال:
بررسی دقت مرکز اروپایی پیشبینیهای میان مدت جوی (ECMWF) در پیش بینی بارش مناطق گوناگون اقلیمی ایران
به منظور بررسی میزان خطای مرکز اروپایی پیشبینیهای میان مدت جوی (ECMWF) در پیشبینی بارش مناطق مختلف ایران، دادههای بارش ماهانه 45 ایستگاه همدیدی پراکنده در سطح کشور با دادههای بارش ماهانه ERA-Interim در نزدیکترین نقطه به هر ایستگاه مورد مقایسه آماری قرار گرفت. برای این منظور از آمارههایی مانند ضریب تعین (R2)، مجذور میانگین مربع خطا (Rmse)، شیب خط (B Slope)، اریبی (Bias) و ضریب کارایی مدل...
The political and social system involved in the limbo between tradition and modernity of the Qajar Era caused widespread and quick developments in Iranian culture, art, and architecture as well as a challenge between tradition and modernity. Relatively numerous palaces built in this era were signs of greatness and distinction-seeking of the Qajar kings and aristocrats, who embraced all transfor...
Ubiquitin (Ub)-binding domains (UBDs) located in Ub receptors decode the ubiquitination signal by non-covalently engaging the Ub modification on their binding partners and transduce the Ub signalling through Ub-based molecular interactions. In this way, inducible protein ubiquitination regulates diverse biological processes. The estrogen receptor alpha (ERa) is a ligand-activated transcription ...
The aims of the paper are (i) to describe the annual distribution of extreme runoff events on the Mura, Drava and Sava Rivers, (ii) to demonstrate their association with moisture fluxes, and (iii) to explain their annual distribution by moisture flux climatology. Extreme runoff events were defined as rapid increases in daily mean discharge. Moisture flux anomalies were studied within six pixels...
An analysis of atmospheric energy transport in 22 years (1980–2001) of the 40-yr ECMWF Re-Analysis (ERA-40) is presented. In the analyzed budgets, there is a large cancellation between divergences of dry static and latent energy such that the total energy divergence is positive over all tropical oceanic regions except for the east Pacific cold tongue, consistent with previous studies. The west ...
[1] This paper synthesizes a variety of atmospheric and oceanic data to examine the large-scale energy budget of the Arctic. Assessment of the atmospheric budget relies primarily on the ERA-40 reanalysis. The seasonal cycles of vertically integrated atmospheric energy storage and the convergence of energy transport from ERA-40, as evaluated for the polar cap (defined by the 70 N latitude circle...
A statistical framework to evaluate the performance of chemistry-climate models with respect to the interaction between meteorology and column ozone during northern hemisphere mid-winter, in particularly January, is used. Different statistical diagnostics from four chemistry-climate models (E39C, ME4C, UMUCAM, ULAQ) are compared with the ERA-40 re-analysis. First, we analyse vertical coherence ...
Pedagogy and education was always important in Islamic Era that is mean learning and in another words, refinement and guidance but teaching is meaning pedagogy and action of pedagogy systems. Mosques were the first places that pedagogy and education was done in them but in The Seljuk Era “Nizamiyah”, independent schools were made and these actions were done in it. After this period, seminaries ...
[1] The tropical impact on the East Asian winter monsoon (EAWM) is examined in an ensemble of atmospheric general circulation model runs that use relaxation towards the ERA-40 reanalysis in the tropics for winters between 1960/61 and 2001/02 and performed with a recent version of the European Centre for Medium-Range Weather Forecasts model. 25% of the interannual variance of the EAWM can be rep...
The summer extent of the Arctic sea-ice cover has decreased in recent decades and there have been alterations in the timing and duration of the summer melt season. These changes in ice conditions have affected the partitioning of solar radiation in the Arctic atmosphere–ice–ocean system. The impact of sea-ice changes on solar partitioning is examined on a pan-Arctic scale using a 25 km! 25 km E...
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