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HL­TWiM Empirical Model of High­Latitude Upper Thermospheric Winds

Cited 10 time in wos
Cited 10 time in scopus

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dc.contributor.authorDhadly, Manbharat S.-
dc.contributor.authorEmmert, John T.-
dc.contributor.authorDrob, Douglas P.-
dc.contributor.authorConde, Mark G.-
dc.contributor.authorAruliah, Anasuya-
dc.contributor.authorDoornbos, Eelco-
dc.contributor.authorShepherd, Gordon G.-
dc.contributor.authorWu, Qian-
dc.contributor.authorMakela, Jonathan J.-
dc.contributor.authorNiciejewski, Rick J.-
dc.contributor.authorLee, Changsup-
dc.contributor.authorJee, Geonhwa-
dc.contributor.authorRidley, Aaron J.-
dc.date.accessioned2020-10-21T05:58:18Z-
dc.date.available2020-10-21T05:58:18Z-
dc.date.issued2019-12-
dc.identifier.urihttps://repository.kopri.re.kr/handle/201206/11000-
dc.description.abstractWe present an empirical model of thermospheric winds (HL-TWiM - High-latitude Thermospheric Wind Model) which speci es F region high-latitude horizontal neutral winds as a function of dayday-of-year, latitude, longitude, local time, and geomagnetic activity. HL-TWiM represents the large-scale neutral wind circulation, in geomagnetic coordinates, for the given inputconditions. The model synthesizes the most extensive collection to date of historical high-latitude wind measurements; it is based on statistical analyses of several decades of F region thermospheric wind measurements from 21 ground-based stations (Fabry-Perot Interferometers (FPIs) and Scanning Doppler Imaging FPIs (SDIs)) located at various northern and southern high latitudes and 2 space-based instruments (UARS WINDII and GOCE). The geomagnetic latitude and local time dependences in HL-TWiM are represented using Vector Spherical Harmonics (VSH), day-of-year and longitude variations are represented using simple harmonic functions, and the geomagnetic activity dependence is represented using quadratic B-splines. In this paper, we describe the HLTWiM formulation and tting procedures, and we verify the model against the neutral wind databases used in its formulation. HL-TWiM provides a necessary benchmark for validating new wind observations and tuning our physical understanding of complex wind behaviors. Results show stronger Universal Time (UT) variation in winds at southern than northern-high latitudes. Model-data intra-annual comparisons in this study show semi-annual oscillation (SAO) like behavior of GOCE winds, rarely observed before in wind data.en_US
dc.languageEnglishen_US
dc.language.isoenen_US
dc.subjectAstronomy & Astrophysicsen_US
dc.subject.classificationJang Bogo Stationen_US
dc.titleHL­TWiM Empirical Model of High­Latitude Upper Thermospheric Windsen_US
dc.title.alternative고위도 열권 바람 경험 모델 HL-TWiMen_US
dc.typeArticleen_US
dc.identifier.bibliographicCitationDhadly, Manbharat S., et al. 2019. "HL­TWiM Empirical Model of High­Latitude Upper Thermospheric Winds". <em>JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS</em>, 124(12): 10592-10618.-
dc.citation.titleJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICSen_US
dc.citation.volume124en_US
dc.citation.number12en_US
dc.identifier.doi10.1029/2019JA027188-
dc.citation.startPage10592en_US
dc.citation.endPage10618en_US
dc.description.articleClassificationSCI-
dc.description.jcrRateJCR 2017:40.909en_US
dc.subject.keywordionosphereen_US
dc.subject.keyworddata assimilationen_US
dc.subject.keywordempirical modelingen_US
dc.subject.keywordthermosphereen_US
dc.subject.keywordneutral dynamicsen_US
dc.subject.keywordhigh-latitudeen_US
dc.identifier.localId2019-0232-
dc.identifier.scopusid2-s2.0-85076724399-
dc.identifier.wosid000503344700001-
Appears in Collections  
2019-2019, Understanding polar upper atmospheric changes by energy inputs from the space environment and the lower atmosphere (19-19) / Jee, Geonhwa (PE19020)
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