Zobrazeno 1 - 10
of 334
pro vyhledávání: '"Natsuo Sato"'
Publikováno v:
Earth, Planets and Space, Vol 69, Iss 1, Pp 1-11 (2017)
Abstract We examined the morphological signatures of 315 omega band aurora events observed using the Time History of Events and Macroscale Interactions during Substorm ground-based all-sky imager network over a period of 8 years. We find that omega b
Externí odkaz:
https://doaj.org/article/621c2b95d26f44f18feb33319a7c96f4
Autor:
Keisuke Hosokawa, Yasuo Takeda, Tadahiko Ogawa, Akira Kadokura, Akira Sessai Yukimatu, Natsuo Sato
Publikováno v:
Antarctic Record, Vol 57, Iss 3, Pp 317-328 (2013)
This paper reports simultaneous observations of visible noctilucent clouds (NLC) and polar mesosphere summer echoes (PMSE) at Syowa Station (69°01′S, 38°61′E) in Antarctica. During a 1.5 h interval from 2000 to 2130 UT (2300 to 0030 LT) on Feb.
Externí odkaz:
https://doaj.org/article/181fec40aa7c486e985badb5b5acaff3
Publikováno v:
Antarctic Record, Vol 57, Iss 1, Pp 1-15 (2013)
Solar phenomena, including solar flares and coronal holes, are considered in the context of a NEWS coordinate system, obtained by application of the heliographic and heliomagnetic coordinate systems to the solar latitude and longitude, respectively.
Externí odkaz:
https://doaj.org/article/b6f6a30e67ff440dac2c50f3a2ebdba0
Publikováno v:
Antarctic Record, Vol 53, Iss 3, Pp 233-258 (2009)
Following the traditional way of expression, geomagnetic storms have been classified into three types; flare-type Sc storms, CH-type Sg storms, and DB-type Sc storms (Sc:sudden commencement;CH:coronal hole;g:gradual;DB:disparition brusque).We have di
Externí odkaz:
https://doaj.org/article/002d2238a818401e948f2bef92a76305
Publikováno v:
Antarctic Record, Vol 53, Iss 2, Pp 123-135 (2009)
In this study, we suggest a new remote sensing technique for enhanced electron density in the lower ionosphere by using the correlation between VLF whistler mode waves (daytime chorus emissions) and CNA, both observed on the ground. The ionospheric a
Externí odkaz:
https://doaj.org/article/eac84d46ae8644c8b82b072ccadf6575
Autor:
Hisao Yamagishi, Taketoshi Miyake, Toshimi Okada, Akihiro Chino, Akira Kadokura, Yusuke Ebihara, Natsuo Sato, Hiroshi Takano
Publikováno v:
Antarctic Record, Vol 50, Iss 2, Pp 115-131 (2006)
Circum-Antarctic balloons were launched from Syowa Station by the 44th Japanese Antarctic Research Experiment team in January 2003. Two balloons equipped with identical instruments were flown in formation around the Antarctic continent, in an attempt
Externí odkaz:
https://doaj.org/article/f9aea7a04822476592bb1e98ac147201
Publikováno v:
Antarctic Record, Vol 46, Iss 1, Pp 1-14 (2002)
Long-term monitoring of natural radio wave emissions in the ELF/VLF range observed at Syowa Station, Antarctica (L=6.1) and its geomagnetic conjugate point in Iceland showed dependence on solar activities for solar cycles 21 and 22. It is also found
Externí odkaz:
https://doaj.org/article/f6ff4570af504a6297f3670fad0bc139
Autor:
Natsuo Sato
Publikováno v:
Antarctic Record, Vol 43, Iss 3, Pp 424-458 (1999)
The wintering party of the 34th Japanese Antarctic Research Expedition (JARE-34), which consisted of 40 members including one foreign scientist, wintered at Syowa Station from February 1993 to January 1994. Observations at Syowa Station were conducte
Externí odkaz:
https://doaj.org/article/6c020c314ee84a43a957c62108a55188
Publikováno v:
Antarctic Record, Vol 43, Iss 2, Pp 291-353 (1999)
The International Magnetospheric Study (IMS) was carried out for three years from 1976. The Japanese Antarctic Research Expedition (JARE) participated in this IMS project. The main purpose of the IMS project in JARE was the synthetic observation of p
Externí odkaz:
https://doaj.org/article/4402c7c4aa3b4cc3afdb15288e87a771
Publikováno v:
Antarctic Record, Vol 42, Iss 1, Pp 1-19 (1998)
Seasonal variation in the latitude of geomagnetically conjugate point was obtained statistically using the imaging riometers at Syowa-Tjornes conjugate pair stations. The conjugate point was evaluated experimentally from the relative location of band
Externí odkaz:
https://doaj.org/article/6f9ff90c2c7c4c71ac109ac44ada4224