News and Announcements [in Japanese]
★ Back Numbers ★
1997:No. 41 [Jan], No. 42 [Mar], No. 43 [May], No. 44 [Jul], No. 45 [Sep], No. 46 [Nov]
1998:No. 47 [Jan]
★地磁気センターニュース No.48／1998年3月31日発行★
１．新着地磁気データ
前回ニュース（1998年1月23日発行,No.47）以降入手、または、当センターで入力したデータ
の内、主なものは以下のとおりです。（観測所名の省略記号等については、データカタログまた
はデータベース'ＧＥＯＭＡＧ'をご参照ください。）
Newly Arrived Data
（１）Analogue Data
Annual Reports and etc.:
Niemegk(Dec 1997-Feb 1998), Finnish Obs.(SOD,NUR,HAN,OUJ Jan-Feb 1998)
Loparskaya,Lovozero(Apr-Jun 1997)
Fredericksburg(Dec 1997), Dombas(1996)
L'Aquila(1996), Terra Nova Bay(1994-95)
（２）Digital Data
Geomagnetic Hourly Values:
Kakioka,Kanoya, Memambetsu(Dec 1997-Feb 1998)
Geomagnetic 1 Minute Values:
Kakioka,Memambetsu, Kanoya(Dec 1997-Feb 1998)
Hatijo(Jan,Feb 1998), Valentia(Nov 1997-Feb 1998)
Geomagnetic 1 Second Values:
Kakioka,Kanoya,Memambetsu(Dec 1997- Feb 1998)
（３）Kp Index
Kp-Index Table(Jan,Feb 1998)
なおデータの注文等は、当センター宛、書面またはＦＡＸにてお願いします。
２．一時間値Ｄｓｔ指数の算出と配布
１９９７年１２月までのＤｓｔ指数(Provisional)を算出し、関係機関に配布しました。
ご希望の方は、郵便またはファクシミリにて、京都大学理学部地磁気世界資料解析センターまで
お申し込み下さい。なお、Quick Look DstおよびQuick Look AE指数は２〜３日の遅れで
当センターのホームページから利用できます。
３．オンラインデータベースの更新
京都大学大型計算機に構築して公開サービスしていますデータベース
ＧＥＯＭＡＧの地磁気・観測データの収集状況を集めたＳＤＴテーブル、および観測所情報を
収納したＳＴＡＴテーブル、及び当センターワークステーション上のデータベース”ＷＤＣ−ＧＥＯＭＡＧ”の
中身(含・Web上の全データカタログ)は3月4日現在の情報に更新されました。なお、
オンライン利用可地磁気データのカタログは、毎週に一度(原則として月曜未明)自動更新されて
います。
４．Provisional AE指数のホームページからの利用
今までのFinal AE指数に加えて、Provisional AEが当センターのホームページから
利用できるようになりました。URLアドレスはhttp://swdcdb.kugi.kyoto-u.ac.jp/aeasy/です。
1-9日間のプロット(GIFまたはPS形式, ASY/SYM指数付き)、及びデータ出力が可能で、
AEおよびASY/SYM指数の利用できる期間は現在
AE:
Final: 1978-Jun. 1988
Provisional: Mar. 1989, 1990-91, 1993-94
ASY/SYM:
1984-Jan. 1997
です。
1997年以降のQuicklook AE指数はAE Quick Look pageから利用できます。
５．On Solar-Terrestrial Observations In India
Solar-Terrestrial observational data that are being basically generated from
experiments from India are mainly confined to about 16 (sixteen) agencies.
The experiments are (a) Ground-based Geomagnetic observational network(11-maintained
by Indian Institute Of Geomagnetism,IIG,Bombay or Mumbai;1 each by Vikram
Sarabhai Space Centre,VSSC,Trivandrum;Indian Institute Of Astrophysics,IIA,
Bangalore;National Physical Laboratory,NPL,New Delhi;National MST Radar
facility,Tirupati;Survey Of India,SOI,DehraDun and 2 Observatories by National
Geophysical Research Institute,NGRI,Hyderabad) (b) Telluric or Geomagnetic
Pulsation Observations (3-digital stations maintained by IIG,Mumbai and 1-
analog station by NGRI,Hyderabad) (c) Ionosondes wherein Ionosphere is probed
by vertical sounders (2-digital stations by VSSC,Trivandrum;1-digital
station each by IIA,Bangalore;Physical Research Laboratory,PRL,Ahmedabad,
Department Of Physics,Andhra University,Waltair;1-analog Unit by National
Physical Laboratory,New Delhi and another analog Unit is proposed at
Shivaji University,Kolhapur) (d)VHF back scatter Radars (2-Units, one operating,
at about 54 MHz for monitoring E-region irregularities and another over 100 MHz
for monitoring F-region irregularities during night-time are maintained by
VSSC,Trivandrum) (e) Partial reflection Radars for deriving the
winds up to mesospheric heights on a continuous mode at every 2-Km altitude on
1.98 MHz(2-Units are operated by IIG,Mumbai) (f) MST Radar (1-Unit of Mesoshere,
Stratoshere and Troposphere Radar is maintained by National MST radar facility,Tirupati)
(g) Optical Interferometer experiments to monitor ionospheric irregularities
through airglow,Fabryperot and other Photometers (2-Units are maintained by
PRL,Ahmedabad;1-each by IIA,Bangalore;IIG,Mumbai and Department of Physics,
University of Pune,Pune) (i) HF Doppler Radar to monitor the Horizontal
electric field signatures (1-Unit each by IIA,Bangalore;PRL,Ahmedabad;Physics
Department of Andhra University,Waltair;Physics Department of Delhi University,
New Delhi; Physics Department of Nagpur University,Nagpur;Physics Department of
Kerala University,Trivandrum) (j)Meteor wind Radar to measure the neutral wind
dynamics through meteor trails (1-Unit each by VSSC,Trivandrum and Physics
Department of Andhra University,Waltair) (k) Drift Experiment (1-Unit each
by PRL,Ahmedabad;Physics Department of Andhra University,Waltair and Physics
Department of Panjabi University,Patiala) (l) Absorption experiment (1-Unit
each by PRL,Ahmedabad and Department of Physics, Andhra University,Waltair
(m) There are about 16 places spread over from the equatorial to well beyond
the Northern equatorial anomaly region where night time ionospheric
irregularities are monitored by recording the 'scintillations' of the VHF signal
that is being transmitted by a geo-stationary satellite. In-addition to the places
mentioned in the above experiments, the other two places where this experiment
is conducted are (i) Department of Physics,Saurashtra University,Rajkot and
(ii)Department of Physics, University of Bhopal,Bhopal.
The places where most of the organizations are conducting the
experiments are shown on the map of India. In some cases the experimental place
-e of the organization may be different and this is not indicated in the text.
VLF wave- experiment ,known as WHISTLER experiment is being conducted at
three places in India. They are (i) Department of Physics,Banaras Hindu University,
Varanasi (b) Department of Physics, University of Bhopal,Bhopal (c) Department of
Physics, University of Agra,Agra. The positions of Varanasi and Agra have, however,
not shown in the map.
The above is a description of the experiments on Solar-Terrestrial
Science that are being pursued on near continuous basis. There are many other
experiments conducted on campaign mode in India and they are not mentioned.
Details regarding the data archival can be obtained by writing to the Head
of the organization. All most all the organizations have e-mail facility.
The schematic Table giving the Summary of experiments is shown.
（Prof. D. R. K. Rao, Indian Institute of Geomagnetism,
Email:drkrao@iig.iigm.res.in)
contact on this page: iyemori@kugi.kyoto-u.ac.jp