Repeated Eyewall Replacement Cycles in Hurricane Frances (2004)

2019 ◽  
Vol 147 (6) ◽  
pp. 2009-2022
Author(s):  
John Molinari ◽  
Jun A. Zhang ◽  
Robert F. Rogers ◽  
David Vollaro

Abstract Hurricane Frances (2004) represented an unusual event that produced three consecutive overlapping eyewall replacement cycles (ERCs). Their evolution followed some aspects of the typical ERC. The strong primary eyewalls contracted and outward-sloping secondary eyewalls formed near 3 times the radius of maximum winds. Over time these secondary eyewalls shifted inward, became more upright, and replaced the primary eyewalls. In other aspects, however, the ERCs in Hurricane Frances differed from previously described composites. The outer eyewall wind maxima became stronger than the inner in only 12 h, versus 25 h for average ERCs. More than 15 m s−1 outflow peaked in the upper troposphere during each ERC. Relative vorticity maxima peaked at the surface but extended to mid- and upper levels. Mean 200-hPa zonal velocity was often from the east, whereas ERC environments typically have zonal flow from the west. These easterlies were produced by an intense upper anticyclone slightly displaced from the center and present throughout the period of multiple ERCs. Inertial stability was low at almost all azimuths at 175 hPa near the 500-km radius during the period of interest. It is hypothesized that the reduced resistance to outflow associated with low inertial stability aloft induced deep upward motion and rapid intensification of the secondary eyewalls. The annular hurricane index of Knaff et al. showed that Hurricane Frances met all the criteria for annular hurricanes, which make up only 4% of all storms. It is argued that the annular hurricane directly resulted from the repeated ERCs following Wang’s reasoning.

2012 ◽  
Vol 14 (1) ◽  
pp. 45-72
Author(s):  
Morteza Karimi-Nia

The status of tafsīr and Qur'anic studies in the Islamic Republic of Iran has changed significantly during recent decades. The essay provides an overview of the state of Qur'anic studies in Iran today, aiming to examine the extent of the impact of studies by Western scholars on Iranian academic circles during the last three decades and the relationship between them. As in most Islamic countries, the major bulk of academic activity in Iran in this field used to be undertaken by the traditional ʿulamāʾ; however, since the beginning of the twentieth century and the establishment of universities and other academic institutions in the Islamic world, there has been increasing diversity and development. After the Islamic Revolution, many gradual changes in the structure and approach of centres of religious learning and universities have occurred. Contemporary advancements in modern sciences and communications technologies have gradually brought the institutions engaged in the study of human sciences to confront the new context. As a result, the traditional Shīʿī centres of learning, which until 50 years ago devoted themselves exclusively to the study of Islamic law and jurisprudence, today pay attention to the teaching of foreign languages, Qur'anic sciences and exegesis, including Western studies about the Qur'an, to a certain extent, and recognise the importance of almost all of the human sciences of the West.


Slavic Review ◽  
1977 ◽  
Vol 36 (4) ◽  
pp. 608-627 ◽  
Author(s):  
Bernice Glatzer Rosenthal

He [Chulkov] says to me, “mystical anarchism,” I say to him, “non-acceptance of the world, supra-individualism, mystical energism,” and we understand each other. . . .Viacheslav IvanovThe Revolution of 1905 challenged the symbolists’ belief that they could seclude themselves from the rest of society. Forced to reexamine their previous ideas, values, and attitudes, they developed new ideologies that took cognizance of the current crisis. Among the most prominent of the new ideologies was mystical anarchism, the doctrine of the symbolist writers Georgii Chulkov and Viacheslav Ivanov. Particularly attractive to the symbolists, mystical anarchism also influenced other artists and intellectuals; doctrines similar to it proliferated, and it engendered a polemic in which almost all the symbolists took part. Strikingly similar to the mystical anarchism of other periods of social upheaval, both in Russia and in the West, illuminating a facet of the little-known mystical and religious aspects of the Revolution of 1905, and providing an example of the response of apolitical writers and artists to revolutionary upheaval, Chulkov and Ivanov’s doctrine merits closer study than it has so far received.


2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Jiali Luo ◽  
Jiayao Song ◽  
Hongying Tian ◽  
Lei Liu ◽  
Xinlei Liang

We use ERA-Interim reanalysis, MLS observations, and a trajectory model to examine the chemical transport and tracers distribution in the Upper Troposphere and Lower Stratosphere (UTLS) associated with an east-west oscillation case of the anticyclone in 2016. The results show that the spatial distribution of water vapor (H2O) was more consistent with the location of the anticyclone than carbon monoxide (CO) at 100 hPa, and an independent relative high concentration center was only found in H2O field. At 215 hPa, although the anticyclone center also migrated from the Tibetan Mode (TM) to the Iranian Mode (IM), the relative high concentration centers of both tracers were always colocated with regions where upward motion was strong in the UTLS. When the anticyclone migrated from the TM, air within the anticyclone over Tibetan Plateau may transport both westward and eastward but was always within the UTLS. The relative high concentration of tropospheric tracers within the anticyclone in the IM was from the east and transported by the westward propagation of the anticyclone rather than being lifted from surface directly. Air within the relative high geopotential height centers over Western Pacific was partly from the main anticyclone and partly from lower levels.


2013 ◽  
Vol 8 (2) ◽  
pp. 299-317 ◽  
Author(s):  
Shohei Sato

AbstractThis article re-examines our understanding of modern sport. Today, various physical cultures across the world are practised under the name of sport. Almost all of these sports originated in the West and expanded to the rest of the world. However, the history of judo confounds the diffusionist model. Towards the end of the nineteenth century, a Japanese educationalist amalgamated different martial arts and established judo not as a sport but as ‘a way of life’. Today it is practised globally as an Olympic sport. Focusing on the changes in its rules during this period, this article demonstrates that the globalization of judo was accompanied by a constant evolution of its character. The overall ‘sportification’ of judo took place not as a diffusion but as a convergence – a point that is pertinent to the understanding of the global sportification of physical cultures, and also the standardization of cultures in modern times.


2021 ◽  
Author(s):  
Kathryn Kost ◽  
◽  
Isaac Maddow-Zimet ◽  
Ashley C. Little

Key Points In almost all U.S. states, pregnancies reported as occurring at the right time or being wanted sooner than they occurred comprised the largest share of pregnancies in 2017, though proportions varied widely by state. The proportion of pregnancies that were wanted later or unwanted was higher in the South and Northeast than in other regions, and the proportion of pregnancies that occurred at the right time or were wanted sooner was higher in the West and Midwest. From 2012 to 2017, the wanted-later-or-unwanted pregnancy rate fell in the majority of states. However, no clear pattern emerged for any changes in the rate of pregnancies that were reported as wanted then or sooner or in the rate of those for which individuals expressed uncertainty.


2018 ◽  
Vol 17 (7) ◽  
pp. 18-43
Author(s):  
L. N. Mylnikova ◽  
L. S. Kobeleva ◽  
M. S. Nesterova

Purpose. We show the main directions of work of the West Siberian archaeological detachment (team) of the Institute of Archaeology and Ethnography SB RAS, demonstrate the methods used and present the results and the possibilities of their interpretation. Results. In 2018, the West Siberian archaeological detachment celebrates the 45th anniversary of its formation. The long-term head of the team is academician V. I. Molodin. All studies are carried out within the framework of a multidisciplinary approach starting from the search for archaeological objects (sites Tartas-1, Vengerovo-2, -2A, -6, Staryi Tartas-5, Ust’-Tartas-1,-2; Chicha-1, Vengerovo-6 and others) to their laboratory investigation. We widely apply a range of analytical methods in all of our activities including almost all stages of research: from the search for archaeological sites to their processing in close cooperation with various scientists. We collaborate with specialists from the Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia; the Institute of Petroleum Geology and Geophysics SB RAS, Novosibirsk, Russia; the Institute of Solid State Chemistry and Mechanochemistry SB RAS, Novosibirsk, Russia; the Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia; the Institute of Nuclear Physics SB RAS, Novosibirsk, Russia; Novosibirsk National Research State University, Novosibirsk, Russia; the Center of Collective Use (CCU) “Geochronology of Cenozoic”, Novosibirsk, Russia; Heidelberg University, Heidelberg, Germany; Ludwig-Maximilian Munich Institute, Munich, Germany; the Center of Archaeology of Kurt Engelhorn, Mannheim, Germany and others. Conсlusion. Studies of the West Siberian archaeological detachment, which were carried out over the recent two decades, have provided new data that develop existing points of view, clarify existing concepts or allow to build new concepts of historical and cultural processes. It is obvious that the modern paradigm of science requires participation of specialists in natural sciences at all stages of archaeological research.


2021 ◽  
Author(s):  
Nawo Eguchi ◽  
Kenta Kobayashi ◽  
Kosuke Ito ◽  
Tomoe Nasuno

<p>We evaluate the impact of temperature at the upper troposphere and lower stratosphere (UTLS) on the tropical cyclone (TC) generation and its development by using the nonhydrostatic atmosphere-ocean coupling axisymmetric numerical model [Rotunno and Emanuel, 1987; Ito et al., 2010]. In the case of cold simulation at UTLS, the maximum wind and the minimum sea level pressure are increased and decreased than the control run, respectively. The magnitude of intensity change is the approximately 4 times larger than the change estimated from the MPIs (Maximum Potential Intensity [Bister and Emanuel,1998; Holland, 1997]). Further, during the development phase, the cold air mass intrudes to the middle troposphere from the upper troposphere at the center of TC, which is not seen in the warm case, leading the atmosphere unstable and enhanced the upward motion and then the TC got stronger.</p>


Augustinus ◽  
2019 ◽  
Vol 64 (3) ◽  
pp. 439-448
Author(s):  
Diana Stanciu ◽  

How to characterize the scriptural exegesis that Augustine of Hippo develops in the Sermons on Scripture? The interpretations of the pericope of the act of faith of the centurion (Matth. 8:5-13) allow, by comparison, to provide elements of answer to this question. Only two continuous commentaries of it are preserved in the works of Augustine: the Sermon 62 (Carthage, 399) and the Sermon Morin 6 (409). It is, however, the subject of some sixty mentions, covering all genres (letters, exegetical treatises, polemics) and almost all chronological and polemical contexts (Manicheism, Donatism, Pelagianism). With this pericope, Augustine reminds both the Manicheans that Scripture must be received with faith, and the Donatists that members of the Church come from the east and the west. The accents are very different in the two sermons: the clearly theological perspective in the Sermo Morin 6 is colored in the Sermo 62 of a discrete and complex rhetorical use which aims to prepare the exhortation not to go to the banquets of the idols that form the second part of this sermon. Augustine’s homiletic exegesis enters into full consonance with the double inscription of the sermon in its liturgical and historical contexts: the first involves developing the faith of the faithful to unify the Body of Christ and the second to lead them to put into practice the requirements of this faith in the concrete circumstances of their lives. The themes of homiletic exegesis then con- tribute to making the sermon one of the mediations of grace in the work in the liturgy.


Author(s):  
Colin Clarke

There were signs of the formation of a massive zone of social deprivation in Kingston—notably in West Kingston, dating from the West India Royal Commission Report (1945) and the Denham Town redevelopment project of the late 1930s (Central Housing Advisory Board, 1936; Stolberg 1990), via the Report on the Rastafari movement in the early 1960s (Smith, Augier, and Nettleford, 1960) and an early paper by Clarke (1966), to the research of Clarke (1975a, b) and Eyre (1986a, b) in the 1970s and 1980s. Kingston’s late-colonial slums were redesignated the ghetto after 1970 (Eyre 1986a, b). More precisely, the ghetto had its origins in the recognized slum areas of West Kingston of 1935 (Clarke, 1975a: fig. 25), in the areas in poor condition in 1947 (Fig. 1.9), the areas of poor housing in 1960 (Fig. 1.10), and the overcrowded areas of 1960 (Clarke 1975a: fig. 48). Clearly, the slum/ghetto is associated with deprivation, and with high population density in relation to low social class and poor quality (usually rented) accommodation. What is peculiar about the present-day Kingston ghetto is that it is a predominantly black area (more than 92 per cent), in a city where the black population is 88 per cent of the total (Ch. 4). So, while the ghetto conforms to Ward’s definition (1982) in that it is racially homogeneous (almost all the remainder of its population is mulatto), it is defined as much by the deprivation of its occupants—and their high-density dwelling—as by its exclusive racial characteristics. Moreover, it has not expanded by flight from white residential heartlands on its periphery, as in the case of Morrill’s (1965) US ghetto model. Indeed the middle-class mulatto districts on its northern periphery in Kingston have retained their class status (while becoming noticeably darker) over the last thirty years, and the ghetto has spread into areas that were either vacant (in the west) or have become decayed (in the east) (Knight and Davies 1978). Whereas in 1970, the slum/ ghetto was largely West Kingston, it now extends to East Kingston as well, and the major spatial distinction is between uptown (which is largely upper or middle class) and downtown (which is lower class and houses the core of the ghetto). The precise point of division is often given as the clock at Half Way Tree, hence the terms living above or below the clock (Robotham 2003b).


2020 ◽  
Vol 12 (12) ◽  
Author(s):  
Tadeusz Wiśniewski ◽  
Maciej T. Krajcarz ◽  
Karol Standzikowski

AbstractMagdalenian communities exploited mostly local and regional good-quality lithic raw materials. In south-eastern Poland, being the easternmost fringe of the Magdalenian range, Turonian grey flint had a particular importance. Outcrops of this raw material occur both at the west and at the east sides the Vistula River Gorge. The varieties from the eastern area (called here “eastern Turonian flint” or ETF) are common among inventories of the Magdalenian sites situated to west of the Vistula river. This fact points toward the frequent penetration of the ETF outcrop area by those societies. However, no Magdalenian sites were known directly from the ETF deposit area, and this gap in knowledge restricted further understanding of the character and diversity of Magdalenian activity there. Therefore, in this paper, we present the results of searching for Magdalenian sites within the ETF outcrop zone. Applied methodology included study of the archive archaeological materials, followed by detail survey and excavation of the selected site—Stare Baraki 1. This site documents a short stay or multiple stays of Magdalenian people, who were focused on Turonian flint knapping. Lithic inventory records collecting of several local flint varieties at the distance up to around 20 km from the site, followed by almost all stages of flint working. The material from Stare Baraki is the first known and currently the only trace of the Magdalenian people inside the zone of Turonian flint deposits on the right bank of the Vistula river. The study in Stare Baraki delivered new data for the reconstruction of territory exploitation strategies used in the easternmost Magdalenian.


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