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dc.contributor.authorNozawa, Satonori
dc.contributor.authorKawabata, Tetsuya
dc.contributor.authorHosokawa, Keisuke
dc.contributor.authorOgawa, Yasunobu
dc.contributor.authorTsuda, Takuo
dc.contributor.authorMizuno, Akira
dc.contributor.authorFujii, Ryoichi
dc.contributor.authorHall, Chris
dc.date.accessioned2019-05-13T13:07:37Z
dc.date.available2019-05-13T13:07:37Z
dc.date.issued2018-12-11
dc.description.abstractA new fve-wavelength photometer was developed and installed at the EISCAT Tromsø site (69.6°N, 19.2°E) in January 2017. The photometer consists of two units: an optical unit and a control unit together with a PC. The photometer is capable of simultaneously observing auroral emissions with fve wavelengths. A uniqueness of the present system is its capability of precise pointing, which enables pointing the photometer at the feld-aligned position using a star image obtained with a coaxial digital camera. Another uniqueness of the system is its capability of taking data at a sampling rate of 400 Hz. Some preliminary results including correlations between 427.8 nm and 557.7 nm, 630 nm, 777.4 nm, and 844.6 nm are presented. These comparisons are not signifcant unless all of the fve wavelength emissions emanated from exactly the same volume (i.e., magnetic zenith) in the ionosphere, which the present system has.en_US
dc.description.sponsorshipGrants-in-Aid for Scientifc Research (15H05747 and 17H02968) of Japan Society for the Promotion of Science (JSPS) National Institute of Polar Research (NIPR)en_US
dc.descriptionSource at <a href=https://doi.org/10.1186/s40623-018-0962-x>https://doi.org/10.1186/s40623-018-0962-x. </a> © The Author(s) 2018en_US
dc.identifier.citationNozawa, S., Kawabata, T., Hosokawa, K., Ogawa, Y., Tsuda, T., Mizuno, A. ... Hall, C M. A new five-wavelength photometer operated in Tromsø (69.6°N, 19.2°E). <i>Earth Planets and Space, 70</i>, 193. https://doi.org/10.1186/s40623-018-0962-xen_US
dc.identifier.cristinIDFRIDAID 1680444
dc.identifier.doi10.1186/s40623-018-0962-x
dc.identifier.issn1343-8832
dc.identifier.issn1880-5981
dc.identifier.urihttps://hdl.handle.net/10037/15293
dc.language.isoengen_US
dc.publisherSpringerOpenen_US
dc.relation.journalEarth Planets and Space
dc.rights.accessRightsopenAccessen_US
dc.subjectAuroral emissionen_US
dc.subjectPhotometeren_US
dc.subjectField-aligned positionen_US
dc.subjectTromsøen_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430en_US
dc.titleA new five-wavelength photometer operated in Tromsø (69.6°N, 19.2°E)en_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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