Academic literature on the topic 'Katabasis'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Katabasis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Katabasis"

1

Pierce, Nicholas. "Katabasis for E." Hopkins Review 12, no. 1 (2019): 83–86. http://dx.doi.org/10.1353/thr.2019.0009.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Sorensen, Bent. "Katabasis in Cormac McCarthy's Blood Meridian." Orbis Litterarum 60, no. 1 (2005): 16–25. http://dx.doi.org/10.1111/j.1600-0730.2004.10812.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Milosavljević Milić, Snežana. "Motiv katabaze i naratološki koncept sveta priče." Slavica Wratislaviensia 168 (April 18, 2019): 451–59. http://dx.doi.org/10.19195/0137-1150.168.38.

Full text
Abstract:
The katabasis motif and the narratological notion of the storyworldThe article analyzes the motive of katabasis related to the notion of the storyworld as the dominant methodological frame in the field of postclassical and cognitive narratology. Bearing in mind the criteria of authentication Doležel 1998, alternativity Ryan 1991, ontological difference Pavel 1986 and narrative extension Herman 2002, the author analyzes the descent into the underworld. Also, this kind of journey is considered in the context of the transfictional identity of literary characters. The properties of narratives with katabasis are considered in three different literary texts, with regard to their poetics and genres qualities: in the folktale The Faithful Brother, in the short story The Wind by Laza Lazarević, and in the drama The Eternity by Branislav Nušić. The mythological and archetypal layers of katabasis demonstrate its significant narrative potential when it comes to storyworld multiplications and transgressions. Мотив катабасиса и наратологический концепт мира рассказа В статье анализируется мотив катабасиса. Мотив связан с понятием сюжетного мира, являющегося ведущей методологической рамкой посткласической нарратологии. Сошествие в загробный мир анализируется в соответствии со следующими критериями: аутентичности, „альтеритета”, онтологических различий и нарративной экстензии. Мотив сошествия в мир умерших рассматривается в контексте трансфикциональной идентичности литературного героя. Материалом для анализа послужили три произведения сербской литературы: народный рассказ Верный собрат, рассказ Ветер Лазы Лазаревича и драма Вечность Бранислава Нушича. Мифологические и архетипические уровни мотива катабасиса свидетельствуют о его высоком нарративном потенциале.
APA, Harvard, Vancouver, ISO, and other styles
4

Ivanyuk, B. P. "Poetic Travelogue, Anabasis and Katabasis: Dictionary Format." Philologos 54, no. 3 (2022): 63–67. http://dx.doi.org/10.24888/2079-2638-2022-54-3-63-67.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Gunaratne, Anjuli I. "Gregson Davis and the Katabasis of Translation." CLR James Journal 27, no. 1 (2021): 169–87. http://dx.doi.org/10.5840/clrjames20222295.

Full text
Abstract:
The focus of this paper are the themes and principles informing Gregson Davis’s innovative 2017 translation of Aimé Césaire’s, Cahier d’un retour au pays natal. For long, the poem’s title was translated as Notebook of a Return to the Native Land, but Davis renders it as Journal of a Homecoming. To understand this and other highly nuanced changes, I argue that it is necessary to keep in mind at least five crucial aspects that guide Davis’s translation. First is the open-ended nature of his approach to translating this particular poem. This approach is necessary because the poem is about the unfinished and still ongoing process of decolonization. Second, is the principle of committed listening, which is a mode of reading and translating that involves a complex series of returns, revisions, and re-evaluations. Third, is the motif of katabasis or the journey to the underworld, which for Davis is an important metaphorical frame operating in the poem. Fourth, is nostos or a homecoming, because the journey to the underworld requires a homecoming. These classic archetypal themes introduce a vertical dimension to the journey back from the underworld that makes a spiral out of the linearity of historical/postcolonial time. Fifth, is granularity. A granular translator must keep re-evaluating what to prioritize as a new translation of a word must open up spaces for new images to appear in the poem. This is indeed the granularity of Davis’ thought-provoking translation. Taken together, these aspects account for the excellence of Davis’s translation.
APA, Harvard, Vancouver, ISO, and other styles
6

Englund, Axel. "BRITISH RAIL KATABASIS: W.G. SEBALD'S ‘DAY RETURN’." German Life and Letters 67, no. 1 (2014): 120–37. http://dx.doi.org/10.1111/glal.12035.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Boldrer, Francesca. "Tra gli Inferi e le stelle: un problema testuale nel mito di Orfeo in Virgilio (georg. 4,509) e il Leitmotiv astronomico nelle catabasi da Omero a Dante (con echi di Apollonio Rodio)." Philologus 166, no. 1 (2022): 63–84. http://dx.doi.org/10.1515/phil-2022-0108.

Full text
Abstract:
Abstract The article treats the presence of stars in terrestrial landscapes, in opposition to the Underworld and in connection to the topos of katabasis, above all in order to pursue in more depth a textual problem in the fabula Orphei of Vergil’s Georgics (4,509 astris / antris). The philological question is approached both on the basis of context and in relation to the descent into Hades of Aeneas, as well as in diachronic comparison with the earlier Homeric katabasis of Odysseus and the later otherworldly voyage of Dante in the Commedia. This internal and intertextual investigation reveals multiple functions of the celestial bodies in similar stories, as well as analogies between Homer, Vergil and Dante, linked by interests in nature and astronomy and by reciprocal influences. In fact, the Greek model and the Italian emulator seem to help clarify the contested passage in the Vergilian katabasis of Orpheus, while the Latin poet and Dante (who also share echoes of Apollonius Rhodius) rework a celestial detail already present in the νέκυια of Homer. Finally, both these classical authors, as well as Ovid, are subtly present at the ends of the three parts of the Commedia, each of which closes with the suggestive and symbolic image of “stars”, which evokes and renews an ancient tradition.
APA, Harvard, Vancouver, ISO, and other styles
8

Clauss, James Joseph. "Hercules Unchained: Contaminatio, Nostos, Katabasis, and the Surreal." Arethusa 41, no. 1 (2008): 51–66. http://dx.doi.org/10.1353/are.2008.0007.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Doncu, Roxana Elena. "Postcolonial Myth in Salman Rushdie’s The Ground Beneath Her Feet." American, British and Canadian Studies Journal 21, no. 1 (2014): 79–95. http://dx.doi.org/10.2478/abcsj-2013-0021.

Full text
Abstract:
Abstract Postcolonial writers like Salman Rushdie often write back to the “empire” by appropriating myth and allegory. In The Ground beneath Her Feet, Rushdie rewrites the mythological story of Orpheus and Eurydice, using katabasis (the trope of the descent into Hell) to comment both on the situation of the postcolonial writer from a personal perspective and to attempt a redefinition of postcolonial migrant identity-formation. Hell has a symbolic function, pointing both to the external context of globalization and migration (which results in the characters’ disorientation) and to an interior space which can be interpreted either as a source of unrepressed energies and creativity (in a Romantic vein) or as the space of the abject (in the manner of Julia Kristeva). The article sets out to investigate the complex ways in which the Orphic myth and katabasis are employed to shed light on the psychology of the creative artist and on the reconfiguration of identity that becomes the task of the postcolonial migrant subject. The journey into the underworld functions simultaneously as an allegory of artistic creation and identity reconstruction.
APA, Harvard, Vancouver, ISO, and other styles
10

Roberts, William Clare. "Marx in Hell: The Critique of Political Economy as Katabasis." Critical Sociology 31, no. 1-2 (2005): 39–55. http://dx.doi.org/10.1163/1569163053084306.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Katabasis"

1

van, Dyk Gerrit. "Translation as Katabasis and Nekyia in Seamus Heaney's "The Riverbank Field"." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3473.

Full text
Abstract:
Translation has been at the heart of Seamus Heaney's career. In his poem, "The Riverbank Field," from his latest collection, Human Chain, Heaney engages in metatranslation, "Ask me to translate what Loeb gives as / 'In a retired vale...a sequestered grove' / And I'll confound the Lethe in Moyola." Curiously, with a broad spectrum of classical works at his disposal, the poet chooses a particular moment in Virgil's Aeneid as an image for translation. What is it about this conversation between Aeneas and his dead father, Anchises, at the banks of the Lethe which makes it uniquely fitting for Heaney to explore translation? In order to fully understand Heaney's decision to translate this scene from Aeneid 6, it must be clear how Heaney perceives the classical tropes of katabasis (descent into the underworld) and nekyia (communion with the dead). Due to the particularly violent and destructive history of the 20th century from the World Wars to the Holocaust, contemporary poets tend to portray katabasis and nekyia in their works as tragic (See Falconer's Hell in Contemporary Literature). Heaney subverts this view of a tragic descent and communion with the dead in his poetry, instead opting for a journey through Hell which is more optimistic and efficacious. Heaney's rejection of the contemporary tragic katabasis and nekyia allows these classical tropes to become a metaphor for translation. I argue Heaney demonstrates how he views translation and the role of the translator through this metatranslational instance in "The Riverbank Field." For Heaney, not only can a poet descend to the underworld where spirits of the literary dead wait for translation into a new medium, but the translator actually can succeed in bringing an ancient author to a modern readership.
APA, Harvard, Vancouver, ISO, and other styles
2

Telford, Brendan John. "Point of no return : exploring katabatic narrative and deterritorialisation in the Australian outback novel." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/60877/1/Brendan_Telford_Thesis.pdf.

Full text
Abstract:
This thesis consists of the novel Brolga and an exegesis examining in what ways the ideas of katabasis and deterritorialisation inform an understanding of descent narratives in contemporary Australian outback fiction. When writing the creative piece, it was observed that Joseph Campbell’s Hero’s Journey was an imprecise model for my manuscript and indeed for many of the contemporary novels I had read written in similar outback settings. On analysis a better fit lies in the idea of a heroic journey from which there is no clear return from the underworld. This narrative form is defined in this thesis as a katabatic narrative. To unpack this narrative trope, the inverse of territoriality, deterritorialisation, is used as a lens to examine the complex thematic and symbolic resonances of the outback in both Brolga and analogous works of contemporary outback fiction.
APA, Harvard, Vancouver, ISO, and other styles
3

Björnlund, Stefan. "Att vandra i Daedalus hus : En analys av katabasis-motivet i Mark Z. Danielewskis House of Leaves." Thesis, Linnéuniversitetet, Institutionen för film och litteratur (IFL), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-85940.

Full text
Abstract:
Walking in the house of Daedalus – An analysis of the katabasis motif in Mark Z. Danielewski’s House of Leaves   This study analyses the depiction of the labyrinth as a symbolic landscape in regard to both subject and form in the multi-layered novel House of Leaves by Mark Z. Danielewski. Using the mythological katabasis motif as a structural principle, this study discusses modern labyrinthine narratives wherein selfhood is constructed through an infernal journey between a descent and a return. This study analyses the novel with a thematic perspective from two points of view; how the labyrinth acts as central motif for the self in the novel and how the novel visually depicts the narrative through typographical choices throughout the text. The study’s main question is how the novel depicts the labyrinth in regard to its historical and cultural context and how it inscribes itself into a tradition of narratives that depicts the labyrinth as a metaphor for the mind and as a symbol for the exploration of the self.   The result shows that House of Leaves uses a complex cluster of narratives to tell a katabatic story, both through the narrative and the form. Through the symbolic landscape and through the use of a genre typical and uncanny horror story, House of Leaves tells a story about alienation, guilt and love where the characters psychological developments changes in regard to confrontations with the labyrinth and through the symbolical tests that exists throughout the katabatic journey. The characters ascends traumatized from the labyrinth, but are at the same time rewarded with personal insight
APA, Harvard, Vancouver, ISO, and other styles
4

Degerström, Marie. "The Boy Who Couldn’t Grow Up : En tematisk analys av döden i J. M. Barries drama om Peter Pan." Thesis, Linnéuniversitetet, Institutionen för film och litteratur (IFL), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-76386.

Full text
Abstract:
The aim of this study is to analyse the thematic purpose of death in J.M. Barries play Peter Pan, or The Boy Who Wouldn’t Grow Up. Peter Pan, the Darlings and Neverland each get analysed in separate chapters, to get a fuller understanding of their relation to death. This has been done through the use of copingtheory, and comparisons to earlier myths about catabasis, Pan, and British changelings. Further support has been found through earlier works written about the subject, to deepen the understanding of death’s part in this play for children. The essay concludes that the children in the play are deathly ill – and thus Neverland and Peter Pan are representations of the afterlife, and a spirit which guides children on from this life in to the next.
APA, Harvard, Vancouver, ISO, and other styles
5

Zandi, Sophia. "Grotesque, Bodily, and Hydrous: The Liminal Landscapes of the Underworld In Homer, Virgil, and Dante." Oberlin College Honors Theses / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1625864941501779.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Yu, Ye. "Numerical simulations of katabatic flow jumps in Antarctica." Thesis, University of Birmingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403015.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Luijting, Hanneke. "Numerical simulations of katabatic flow in Coats Land, Antarctica." Thesis, University of East Anglia, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.514269.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Niederbäumer, Gunthard. "Katabatic wind over Greenland : comparison between model results and observations /." [S.l.] : [s.n.], 1999. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13050.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Steinhoff, Daniel Frederick. "Cyclogenesis Near the Adélie Coast and Influence of the Low-level Wind Regime." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1204812781.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Wos, Kenneth A. Davidson Kenneth L. "A climatology of polar low occurrences in the Nordic Seas and an examination of katabatic winds as a triggering mechanism." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School; Available from the National Technical Information Service, 1992. http://edocs.nps.edu/npspubs/scholarly/theses/1992/Dec/92Dec_Wos.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Katabasis"

1

The inverted katabasis. Atlatl Press, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Homo viator, katabasis, and landscapes: A comparison of Wolfram von Eschenbach's "Parzival" and Heinrich von dem Türlin's "Diu Crône". Kümmerle Verlag, 2002.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Klein, Thomas. Katabatic winds over Greenland and Antarctica and their interaction with mesoscale and synoptic scale weather systems: Investigations using three dimensional numerical models. Asgard, 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gendai Nihon hō e no katabashisu. Hatori Shoten, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Heinemann, Günther. Katabatic wind and boundary layer front experiment around Greenland ("KABEG '97"): Field phase report. Alfred Wegener Institute for Polar and Marine Research, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wos, Kenneth A. A climatology of polar low occurrences in the Nordic Seas and an examination of katabatic winds as a triggering mechanism. Naval Postgraduate School, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Katabasis. Eulalia Books, 2020.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Damen, Valeer. Katabasis. Lulu Press, Inc., 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Katabasis. CreateSpace Independent Publishing Platform, 2016.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Mazzotta, Francesco. Katabasis. Independently Published, 2020.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Katabasis"

1

Behrmann, Alfred. "Benn: eine Katabasis." In Philologische Praxis III. J.B. Metzler, 1992. http://dx.doi.org/10.1007/978-3-476-03381-9_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bishop, Paul. "Katabasis in Reverse." In The Descent of the Soul and the Archaic. Routledge, 2022. http://dx.doi.org/10.4324/9781003054139-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Thurston, Michael. "Katabasis as Cultural Critique." In The Underworld in Twentieth-Century Poetry. Palgrave Macmillan US, 2009. http://dx.doi.org/10.1057/9780230102149_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Falconer, Rachel. "Heaney, Virgil, and Contemporary Katabasis." In A Companion to Poetic Genre. John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9781444344318.ch28.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Sengupta, Sulagna. "Katabasis in an Ancient Indian Myth." In The Descent of the Soul and the Archaic. Routledge, 2022. http://dx.doi.org/10.4324/9781003054139-10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Dib, Roula-Maria. "Katabasis in Middle Eastern Female Hagiography." In The Descent of the Soul and the Archaic. Routledge, 2022. http://dx.doi.org/10.4324/9781003054139-11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

De Carlo, Andrea F. "Et in Inferno ego! Sulle narrazioni di anabasi e catabasi d’ispirazione dantesca nelle opere dei romantici polacchi." In Biblioteca di Studi di Filologia Moderna. Firenze University Press, 2022. http://dx.doi.org/10.36253/979-12-2150-003-5.05.

Full text
Abstract:
This paper focuses on the anabasis and katabasis narratives inspired by Dante in the works of the most representative Polish romantics: Adam Mickiewicz (1798-1855), Juliusz Słowacki (1809-1849), Zygmunt Krasiński (1812-1859) and Cyprian Kamil Norwid (1821-1883). It was the Divina Commedia which exercised the greatest influence on the poets, especially Inferno, which became a forerunner of the Polish reality itself. But whereas Dante’s Inferno is identified with the underworld, the Polish Romantics’ locus horridus coincides with the actual world. If the Dantesque journey is a katabasis to the underworld, the descent portrayed by Polish poets is an anabasis towards a volcano crater covered with lava and ice. Moreover, according to the martyrological view, the Polish reality in those days was not only a place of suffering and tribulation, but also of expiation, which was a preparation for the arrival of paradise on Earth.
APA, Harvard, Vancouver, ISO, and other styles
8

Lampe, Kurt. "Orestes, Katabasis, and Aggrieved Masculine Entitlement (in Athens, Rhegium, and Today)." In The Descent of the Soul and the Archaic. Routledge, 2022. http://dx.doi.org/10.4324/9781003054139-14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Chriti, Maria. "The Neoplatonic Katabasis of the Soul to the World of the Senses." In The Descent of the Soul and the Archaic. Routledge, 2022. http://dx.doi.org/10.4324/9781003054139-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Wendler, Gerd, Jean Claude André, Paul Pettré, Joan Gosink, and Thomas Parish. "Katabatic winds in Adélie Coast." In Antarctic Research Series. American Geophysical Union, 1993. http://dx.doi.org/10.1029/ar061p0023.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Katabasis"

1

Weaver, Rebecca, Cheng-Nian Xiao, and Inanc Senocak. "Video: Fluid instabilities in the Prandtl katabatic slope flows." In 72th Annual Meeting of the APS Division of Fluid Dynamics. American Physical Society, 2019. http://dx.doi.org/10.1103/aps.dfd.2019.gfm.v0028.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Parmiggiani, Flavio. "Is the katabatic wind the forcing factor of Terra Nova Bay polynya events?" In SPIE Remote Sensing. SPIE, 2011. http://dx.doi.org/10.1117/12.897387.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ho, Chung-Ru, and Fei Lai. "Sea surface temperature changes with katabatic winds observed from IR and SAR images." In Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2019, edited by Charles R. Bostater, Xavier Neyt, and Françoise Viallefont-Robinet. SPIE, 2019. http://dx.doi.org/10.1117/12.2532239.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Neophytou, Marina K. A., Harindra J. S. Fernando, Ekaterina Batchvarova, Mats Sandberg, Jos Lelieveld, and Eleonora Tryphonos. "A Scaling Law for the Urban Heat Island Phenomenon: Deductions From Field Measurements and Comparisons With Existing Results From Laboratory Experiments." In ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21819.

Full text
Abstract:
We report results from a multi-scale field experiment conducted in Cyprus in July 2010 in order to investigate the Urban Heat Island (UHI) in Nicosia capital city and its interaction with multi-scale meteorological phenomena taking place in the broader region. Specifically, the results are analysed and interpreted in terms of a non-dimensional/scaling parameter dictating the urban heat island circulation reported from laboratory experiments (Fernando et al, 2010). We find that the field measurements obey the same scaling law during the day, in the absence of any other flow phenomena apart from the urban heating. During the night we find that the deduced non-dimensional value reduces to half (compared to that during the day); this is due to the presence of katabatic winds from Troodos mountains into the urban center of Nicosia and their cooling effect superimposed on diurnal urban heating. Based on this deduction, the impact of various proposed heat island mitigation measures in urban planning can be evaluated.
APA, Harvard, Vancouver, ISO, and other styles
5

Brun, Christophe, and Jean-Pierre Chollet. "LARGE EDDY SIMULATION OF THE TURBULENT KATABATIC FLOW DEVELOPING ALONG A HYPERBOLIC TANGENT SLOPE IN STABLE ATMOSPHERIC BOUNDARY LAYER." In Sixth International Symposium on Turbulence and Shear Flow Phenomena. Begellhouse, 2009. http://dx.doi.org/10.1615/tsfp6.2010.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Katabasis"

1

Poulos, Gregory Steve. The interaction of katabatic winds and mountain waves. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/437689.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Wilson, D., Michael Shaw, Vladimir Ostashev, et al. Numerical modeling of mesoscale infrasound propagation in the Arctic. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/45788.

Full text
Abstract:
The impacts of characteristic weather events and seasonal patterns on infrasound propagation in the Arctic region are simulated numerically. The methodology utilizes wide-angle parabolic equation methods for a windy atmosphere with inputs provided by radiosonde observations and a high-resolution reanalysis of Arctic weather. The calculations involve horizontal distances up to 200 km for which interactions with the troposphere and lower stratosphere dominate. Among the events examined are two sudden stratospheric warmings, which are found to weaken upward refraction by temperature gradients while creating strongly asymmetric refraction from disturbances to the circumpolar winds. Also examined are polar low events, which are found to enhance negative temperature gradients in the troposphere and thus lead to strong upward refraction. Smaller-scale and topographically driven phenomena, such as low-level jets, katabatic winds, and surface-based temperature inversions, are found to create frequent surface-based ducting out to 100 km. The simulations suggest that horizontal variations in the atmospheric profiles, in response to changing topography and surface property transitions, such as ice boundaries, play an important role in the propagation.
APA, Harvard, Vancouver, ISO, and other styles
3

Wilson, D., Vladimir Ostashev, Michael Shaw, et al. Infrasound propagation in the Arctic. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42683.

Full text
Abstract:
This report summarizes results of the basic research project “Infrasound Propagation in the Arctic.” The scientific objective of this project was to provide a baseline understanding of the characteristic horizontal propagation distances, frequency dependencies, and conditions leading to enhanced propagation of infrasound in the Arctic region. The approach emphasized theory and numerical modeling as an initial step toward improving understanding of the basic phenomenology, and thus lay the foundation for productive experiments in the future. The modeling approach combined mesoscale numerical weather forecasts from the Polar Weather Research and Forecasting model with advanced acoustic propagation calculations. The project produced significant advances with regard to parabolic equation modeling of sound propagation in a windy atmosphere. For the polar low, interesting interactions with the stratosphere were found, which could possibly be used to provide early warning of strong stratospheric warming events (i.e., the polar vortex). The katabatic wind resulted in a very strong low-level duct, which, when combined with a highly reflective icy ground surface, leads to efficient long-distance propagation. This information is useful in devising strategies for positioning sensors to monitor environmental phenomena and human activities.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!