110 research outputs found
SOCOL3-MPIOM model output
No full textThis data is used in Arsenovic et al (2019) (https://doi.org/10.5194/acp-2018-1123).ALL, LEE, MEE and REF refer to the experiment name (see Arsenovic et al, 2019), "ens" followed by number is the output of specific ensemble member (1 to 6). There are three variables in the files: NOy, HOx and O3. The units are mol/mol
Transition of the Sun to a Regime of High Activity: Implications for the Earth Climate and Role of Atmospheric Chemistry
No full textAbstract It was recently suggested that the Sun could switch to a high‐activity regime which would lead to a rise of ultraviolet radiation with an amplitude of about four times larger than the amplitude of an average solar activity cycle and a simultaneous drop in total solar irradiance. Here, we applied the SOCOLv3‐MPIOM model with an interacting ocean to simulate the response of chemistry, dynamics, and temperature of Earth's atmosphere to such a change in solar irradiance. We studied the effect of high activity regime on the atmosphere investigating the influence of the chemical and radiative processes on the climate, and chemistry of NO x, HO x, and O 3 . We find a climate cooling by up to 1K and a substantial increase in stratospheric ozone (up to 14%) and total ozone (up to 8%). To understand the role of the different processes we performed simulations with two sets of forcing accounting separately for the influence on chemical processes and for direct radiation energy balance. Our calculations show that the stratospheric O 3 response is almost fully driven by the chemical processes. We also found that the direct radiation processes lead to near‐surface cooling that results in the suppression of the Brewer‐Dobson circulation. This, in turn, leads to the reduction of H 2 O influx from the low layers of the troposphere and to less intensive transport of ozone from the tropics to the middle latitudes. The surface climate response is dominated by direct radiation influence with only a small contribution from chemical processes.Plain Language Summary It was recently suggested that activity of the Sun could significantly rise which would lead to a rise of ultraviolet radiation and a simultaneous drop in total solar irradiance. In this study, we modeled the response of chemistry, dynamics, and temperature of Earth's atmosphere to such a change in solar irradiance. We studied the effect of high activity regime on the atmosphere investigating the influence of the chemical and radiative processes on the climate, and chemistry. We find a climate cooling by up to 1K and a substantial increase in stratospheric ozone (up to 14%) and total ozone (up to 8%). Our calculations show that the stratospheric ozone response is almost fully driven by the chemical processes. We also found that the direct radiation processes lead to near‐surface cooling that results in the suppression of the Brewer‐Dobson circulation. This, in turn, leads to the reduction of water vapor influx from the low layers of the troposphere and to less intensive transport of ozone from the tropics to the middle latitudes. The surface climate response is dominated by direct radiation influence with only a small contribution from chemical processes.Key Points A switch of the Sun to a high activity regime would lead to a simultaneous increase of the UV irradiance and a drop of the longwave irradiance Solar UV changes control stratospheric ozone and temperature with only a small contribution from solar longwave Tropospheric climate is driven by direct changes in the surface radiation balance with no substantial contribution from the chemical processesAbstract It was recently suggested that the Sun could switch to a high‐activity regime which would lead to a rise of ultraviolet radiation with an amplitude of about four times larger than the amplitude of an average solar activity cycle and a simultaneous drop in total solar irradiance. Here, we applied the SOCOLv3‐MPIOM model with an interacting ocean to simulate the response of chemistry, dynamics, and temperature of Earth's atmosphere to such a change in solar irradiance. We studied the effect of high activity regime on the atmosphere investigating the influence of the chemical and radiative processes on the climate, and chemistry of NO x, HO x, and O 3 . We find a climate cooling by up to 1K and a substantial increase in stratospheric ozone (up to 14%) and total ozone (up to 8%). To understand the role of the different processes we performed simulations with two sets of forcing accounting separately for the influence on chemical processes and for direct radiation energy balance. Our calculations show that the stratospheric O 3 response is almost fully driven by the chemical processes. We also found that the direct radiation processes lead to near‐surface cooling that results in the suppression of the Brewer‐Dobson circulation. This, in turn, leads to the reduction of H 2 O influx from the low layers of the troposphere and to less intensive transport of ozone from the tropics to the middle latitudes. The surface climate response is dominated by direct radiation influence with only a small contribution from chemical processes.Plain Language Summary It was recently suggested that activity of the Sun could significantly rise which would lead to a rise of ultraviolet radiation and a simultaneous drop in total solar irradiance. In this study, we modeled the response of chemistry, dynamics, and temperature of Earth's atmosphere to such a change in solar irradiance. We studied the effect of high activity regime on the atmosphere investigating the influence of the chemical and radiative processes on the climate, and chemistry. We find a climate cooling by up to 1K and a substantial increase in stratospheric ozone (up to 14%) and total ozone (up to 8%). Our calculations show that the stratospheric ozone response is almost fully driven by the chemical processes. We also found that the direct radiation processes lead to near‐surface cooling that results in the suppression of the Brewer‐Dobson circulation. This, in turn, leads to the reduction of water vapor influx from the low layers of the troposphere and to less intensive transport of ozone from the tropics to the middle latitudes. The surface climate response is dominated by direct radiation influence with only a small contribution from chemical processes.Key Points A switch of the Sun to a high activity regime would lead to a simultaneous increase of the UV irradiance and a drop of the longwave irradiance Solar UV changes control stratospheric ozone and temperature with only a small contribution from solar longwave Tropospheric climate is driven by direct changes in the surface radiation balance with no substantial contribution from the chemical processesAbstract It was recently suggested that the Sun could switch to a high‐activity regime which would lead to a rise of ultraviolet radiation with an amplitude of about four times larger than the amplitude of an average solar activity cycle and a simultaneous drop in total solar irradiance. Here, we applied the SOCOLv3‐MPIOM model with an interacting ocean to simulate the response of chemistry, dynamics, and temperature of Earth's atmosphere to such a change in solar irradiance. We studied the effect of high activity regime on the atmosphere investigating the influence of the chemical and radiative processes on the climate, and chemistry of NO x, HO x, and O 3 . We find a climate cooling by up to 1K and a substantial increase in stratospheric ozone (up to 14%) and total ozone (up to 8%). To understand the role of the different processes we performed simulations with two sets of forcing accounting separately for the influence on chemical processes and for direct radiation energy balance. Our calculations show that the stratospheric O 3 response is almost fully driven by the chemical processes. We also found that the direct radiation processes lead to near‐surface cooling that results in the suppression of the Brewer‐Dobson circulation. This, in turn, leads to the reduction of H 2 O influx from the low layers of the troposphere and to less intensive transport of ozone from the tropics to the middle latitudes. The surface climate response is dominated by direct radiation influence with only a small contribution from chemical processes.Plain Language Summary It was recently suggested that activity of the Sun could significantly rise which would lead to a rise of ultraviolet radiation and a simultaneous drop in total solar irradiance. In this study, we modeled the response of chemistry, dynamics, and temperature of Earth's atmosphere to such a change in solar irradiance. We studied the effect of high activity regime on the atmosphere investigating the influence of the chemical and radiative processes on the climate, and chemistry. We find a climate cooling by up to 1K and a substantial increase in stratospheric ozone (up to 14%) and total ozone (up to 8%). Our calculations show that the stratospheric ozone response is almost fully driven by the chemical processes. We also found that the direct radiation processes lead to near‐surface cooling that results in the suppression of the Brewer‐Dobson circulation. This, in turn, leads to the reduction of water vapor influx from the low layers of the troposphere and to less intensive transport of ozone from the tropics to the middle latitudes. The surface climate response is dominated by direct radiation influence with only a small contribution from chemical processes.Key Points A switch of the Sun to a high activity regime would lead to a simultaneous increase of the UV irradiance and a drop of the longwave irradiance Solar UV changes control stratospheric ozone and temperature with only a small contribution from solar longwave Tropospheric climate is driven by direct changes in the surface radiation balance with no substantial contribution from the chemical processe
The impact of a potential future grand solar minimum on biological health effects : erythema, DNA damage and vitamin D production
Get PDFUltraviolet radiation (UVR) emitted by the Sun causes both beneficial and harmful biological responses in humans that are essential for skin and musculoskeletal health. Solar UVR also regulates stratospheric ozone production, which in turn limits UVR transfer to the Earth’s surface. This thesis aims to improve the understanding of the relationship between solar activity and biological responses by investigating the impact of a potential 21st century grand solar minimum on three biological health effects: erythema, DNA damage, and vitamin D production. Using the libRadtran radiative transfer model, solar radiation levels at Earth’s surface are computed for five distinct levels of solar activity to predict erythemal, DNA damage, and vitamin D radiation doses between 2100 and 2199. This process requires weighting the relevant wavelength bands with their respective action spectra. In relation to the reference scenario of continued prevalent solar activity, a decline of 3.5 or 6.5 Wm-2 is found to result in respective relative index increases of 0.72% or 1.18% for erythema, 2.73% or 4.85% for DNA damage, and 1.03% or 1.73% for vitamin D production. Regional differences are also shown to be significant. The greatest relative changes are expected in the midlatitudes: up to 2.12% for erythema, 6.90% for DNA damage, and 3.44% for vitamin D production. Additionally, the northern hemisphere is found to be more affected than the southern hemisphere, displaying 0.45% higher intensity for erythema, 0.98% for DNA damage, and 0.44% for vitamin D production. These findings corroborate expectations derived from future ozone-column simulations. The results also carry important implications for future health protection efforts should a grand solar minimum occur. Education-based measures could prove effective if adapted adequately. However, individual factors play a major role in UV-induced health effects, and thus predictions about overall future impacts on public health remain challenging. Nonetheless, the evidence underscores that efforts to implement effective health protection measures need to be enhanced in a potential GSMi-future given the straightforward and practical prevention strategies available. This is especially true for the northern midlatitudes, where the general population is most at risk and greatest changes would occur
The Role of Pavle Popović in the Development of Anglo-Serbian Relations (1916–1933)
No full textThe goal of this chapter is to analyze the activity of Pavle Popović, the first Inspector of the Ministry of Education of Serbia in Great Britain during the First World War and future rector of the University of Belgrade. It addresses his role in the development of good relations between Serbia and Great Britain between the two world wars. Pavle Popović’s activity in Great Britain was threefold: in addition to his work as Inspector with the Ministry of Education, he was also a scholar and an effective propagandist. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG
French-Ragusan literary connections in Pavle Popović's research
Get PDFУ раду се анализирају студије Павла Поповића у којима
се бавио компаратистичким истраживањем француско–дубровачких књижевних веза, као и указивањем на нека места у Поповићевом опусу где је, такође,
дао податке о француском културном и књижевном утицају на књижевност
старога Дубровника.In very rich Raguseological opus of Pavle Popović, significant part
belongs to comparatistic research. He was conducting them with the aim to
determine templates or models for works of Ragusan writers, thus setting the
foundation for more objective critical evaluation of those works and their authors, but also of the literature of old Dubrovnik as a whole. In his comparative
approach to Ragusan literature, Pavle Popović wanted to show that some of
the highest values of the European literary tradition were built in its corps. In
this comparatistic effort, Pavle Popović seldom – only in few occasions – studied French-Ragusan literary and cultural connections and influences. At the
very beginning of his work on literary-historic research of Ragusan literature,
in 1904, Pavle Popović set out to observe Držić’s comedies in Molierean key
(Marin Držić and Moliere). Popović made his comparative analysis in order
to prove value of Držić’s comedies! Namely, he wanted to draw attention to
cultural importance of Držić’s leaning on classical sources, because it is a fact
that even in small Dubrovnik, and not only in great France, there was spiritual
atmosphere which enabled a writer to reach high levels when it comes to
choice of his sources. Six years after this study, Pavle Popović took to finding
source of Ragusan farce from 1792, known under the name Pokrinokat. First
he provided content of the French original, and then gave data about many
versions of this very popular farce, and about its French, but also about its
Latin, German and Italian adaptations. Then, using proven methodological
procedure, after huge preparation work which included comparison of Ragusan adaptation with numerous versions of the source, Popović undoubtedly
determined that Pokrinokat was an adaptation of Lawyer Patlen version from
1700 (played for the first time in 1706), written by David-Augustin de Brueys.
Five years later, Popović published this study in France, in somewhat shorter form. It appeared in the most difficult days for Serbian people in World War I, in late autumn of 1915, when Government, Parliament and army, with
part of the population, left for refuge which will take them across Albanian
mountains to Corfu and Thessaloniki. Popović’s intention with this article
was to show the French, most loyal Serbian allies, the historical roots and
strength of French-Serbian literary and cultural relations, and their reflection
in the tiny Republic of Ragusa which – as can be seen from the title of Popović’s article – was supposed to be a point of juncture of Serbian and Croatian
culture. Successfully applied comparatistic method enabled Pavle Popović to
be sure of his critical evaluations of Ragusan literature, which is confirmed
by his evaluation of drama works of Nikola Nalješković. Until Popović, Nalješković’s farces were being mainly underestimated, and their author was
viewed as not too talented predecessor of Marin Držić. Only in the first farce,
the so-called Comedy V, attention was paid to echoes of daily life in the 16th
century Dubrovnik, while the third farce, Comedy VII, was viewed as Nalješković’s unsuccessful attempt to write a “real” erudite comedy. Especially underestimated was Nalješković’s second farce, the so-called Comedy VI. And it
was exactly Pavle Popović who, thanks to his knowledge of tradition of farce
which he demonstrated in his study on Ragusan adaptation of Lawyer Patlen,
drew attention to this Nalješković’s farce, writing about Nalješković’s drama
works in his Overview of Serbian Literature.Научни скупови / Српска академија наука и уметности ; књ. 178. Одељење језика и књижевности ; књ. 3
My life in dashes
No full text„Pavle Katić je tih čovek, nenametljiv. Takva je i ova knjiga, koja, kako kaže sam autor, donosi samo 'crtice' iz njegovog burnog života. Ipak, ona za nas predstavlja važno svedočanstvo iz perioda Drugog svetskog rata i posveta je jednoj generaciji koja je sanjala bolji i slobodniji svet i za njega bila spremna da istrpi mučenja, zatvore i logore da se izdigne iz nametnutih okolnosti i bori za svoje ideale“…Pavle Katić je rođen 1925. u Novom Sadu, u jevrejskoj porodici, od oca Henrika, željezničkog radnika i majke Henriete. Sa roditeljima, bakom, braćom i sestrom vodio je relativno normalan život u Mađarskoj ulici broj 5. Pohađao je Srednju tehničku školu, bavio se sportom, učestvovao u radu novosadskih jevrejskih udruženja, odlazio na Štrand, izučavao fotografiju i sa majkom svirao klavir. A onda je došao fašizam. Već krajem 1940. isključen je iz škole zbog usvajanja 'numerus clausus-a', ali i zbog učešća u čuvenom školskom štrajku, koji su organizovali mladi revolucionari i buduće legende vojvođanskog Narodnooslobodilačkog pokreta Boško Palkovljević Pinki i Milan Kom. Par meseci kasnije, Treći rajh i njegovi sateliti okupiraju neposlušnu Kraljevinu Jugoslaviju, a bačku teritoriju anektira Hortijeva Mađarska. Od tog trenutka položaj jugoslovenskih Jevreja se značajno pogoršava, a na prostoru Bačke izložen je i diskriminatorskim pritiscima reakcionarnih, nacionalističkih, a delom i antisemitskih mađarskih vlasti. Četiri teške godine okupacije većina ukućana sa adrese Mađarska br. 51 neće preživeti. Stradaće u Novosadskoj raciji i na prinudnom radu u rovovima Istočnog fronta. Osim najstarijeg brata Bele, koji će preminuti posle rata od posledica tuberkoloze zadobijene u nacističkom logoru Mauthauzen, od porodice Katić jedini će starost doživeti Pavle i brat Aleksandar, obojica aktivni članovi novosadskog SKOJ-a. Jeziv je apsurd da ih je od sigurne smrti spasilo to što su kao aktivisti revolucionarnog i antifašističkog pokreta uhapšeni već u prvoj godini okupacije i veći deo rata proveli po mađarskim zatvorima. Od strane vlasti prepoznati kao politički zatvorenici, izbegli su sudbinu većine novosadskih Jevreja koji su, zbog svoje verske pripadnosti, stradali u raciji, na prinudnom radu ili u koncentracionim logorima u koje su bili deportovani aprila 1944. Kao borci i antifašisti imali su barem nekakvu šansu - kao Jevrejima kraj im je bio gotovo izvestan…"Pavle Katić is a quiet, unassuming man. This is also the case with this book, which, as the author says, only brings 'sketches' from his turbulent life. Nevertheless, for us, it represents an important testimony from the period of the Second World War. It is a dedication to a generation that dreamed of a better and freer world and for it was ready to endure torture, prisons and camps to rise from imposed circumstances and fight for its ideals".Izdanje na mađarskom jeziku [https://www.jevrejskadigitalnabiblioteka.rs/handle/123456789/3141
Pavle Marković Adamov᾽s literature
Get PDFУ раду је представљен целокупни књижевни опус заборављеног писца Павла Марковића Адамова, једног од зачетника српске реалистичке приповетке и оснивача и првог уредника Бранковог кола – листа за забаву, поуку и књижевност, у циљу превредновања његовог књижевног дела, како би Адамов, коначно, добио место које му припада у историји српске књижевности.U radu je predstavljen celokupni književni opus zaboravljenog pisca Pavla Markovića Adamova, jednog od začetnika srpske realističke pripovetke i osnivača i prvog urednika Brankovog kola – lista za zabavu, pouku i književnost, u cilju prevrednovanja njegovog književnog dela, kako bi Adamov, konačno, dobio mesto koje mu pripada u istoriji srpske književnosti.The thesis represents the complete literary corpus of the forgotten author Pavle Marković Adamov, one of the pioneers of the Serbian realism short stories and the founder and first editor of ᾽Brankovo kolo᾿ - a paper for fun, learning and literature. The aim of the thesis is to bring his literary works back to light and give them proper appreciation, so that Adamov will finally be given the spot that he deserves in the history of Serbian literature
Pavle Popović on old Serbian biographies
Get PDFУ овом раду аутор представља своје резултате у истраживању доприноса Павла Поповића проучавању старих српских биографија.
Он хронолошки прати и анализира Поповићеве студије и радове у којима
је реч о српским биографима и њиховим делима. Посебно се задржава на
Преgлеɡу сtаре књижевносtи (објављен у „Српском књижевном гласнику“
1907), где Поповић, по први пут целовито, приказује основне карактеристике
жанра, представља њему познате писце који су у његовим оквирима стварали
и сама дела. Овај преглед, допуњен и с новом систематизацијом писаца, недуго затим улази у састав Поповићеве књиге Преgлеɡ срpске књижевносtи
(штампана 1909). Аутор рада настојао је да установи интервенције (измене,
допуне), али и да у целини сагледа значај новога текста, који ће потом, деценијама, бити главни извор сазнања о српској биографици.
Аутор у раду представља и позније Поповићеве радове. Указује да се
он изнова враћао на старе српске биографије. Био је спреман да о њима још
документованије и научнички зрелије говори у својој књизи Исtорија јуgословенске књижевносtи, коју је припремао, али је није довршио; о томе
сведоче неколики сачувани фрагменти из ње.
Аутор закључује да се Павле Поповић истрајно и темељно бавио старим српским биографијама. Врло рано је остварио лични приступ и засновао
сопствени метод проучавања и критеријуме за естетско вредновање дела.The author of this paper has researched the contribution of the wellknown Serbian literary historian Pavle Popović to the study of old Serbian
biographies. In this paper, it is pointed out that Popović’s first papers dedicated
to old Serbian biographies were written in the final decade of the 19th century
and at the very beginning of the 20th century. They were published in periodicals of that time (Srpski pregled [Serbian Review], Nastavnik [Teacher] and
others). Popović dealt with archaeographic and textological issues, investigated sources and especially focused on St Sava and Teodosije.
Ljiljana Juhas-Georgievska established that Pavle Popović first wrote
about old Serbian biographies in a detailed manner in his An Overview of
Old Serbian Literature, published in Srpski književni glasnik [Serbian Literary
Herald] in 1907. In this paper, he presented the basic characteristics of the
genre, wrote about the authors known to him who belonged to this genre and
their works. He adhered to the chronological principle. This Overview, somewhat expanded, was subsequently included in Popović’s book An Overview
of Old Serbian Literature (published in 1909). Taking over the earlier text,
Popović expanded it by adding new information. He added new writers to the
list (he wrote about Patriarch Pajsije). He presented the opuses of Danilo the
Second and his Disciple in a more detailed manner.
The author of this paper points out that, later on in his studies, Popović
returned to old Serbian biographies. That he was prepared to write about them
in a more documented and scientifically mature manner in his book A History
of Yugoslav Literature (he worked on it towards the end of his life but did not
get to finish it), is testified to by the preserved fragments of the book. One of
them, in which he analysed the work of Gregory Tsamblak, Constantine the
Philosopher and Patriarch Pajsije, is presented by Lj. Juhas Georgievska in
this paper. In it, Popović dealt with the poetics of these authors in a much more
detailed manner, shedding light on the circumstances and the atmosphere in
which their works were created.
It is concluded in this paper that Pavle Popović perseveringly and in a
detailed manner dealt with old Serbian biographies. Very early on, he established his personal approach and his own method of scientific investigation.
Owing to his developed feeling for aesthetics, criteria and great erudition, he
could successfully analyse the most complex and demanding works.
Returning to certain authors and their biographical works was very fruitful
for Popović’s scientific work. His later works were more thoroughly researched
and produced results whose value has not diminished to the present day.Научни скупови / Српска академија наука и уметности ; књ. 178. Одељење језика и књижевности ; књ. 3
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