電離層電気伝導度計算を事例としたIUGONET データ解析ソフトウェアによる数値モデルの取り

扱い小山　幸伸 *1, 新堀　淳樹 *2, 堀　智昭 *3, 能勢　正仁 *1, 田中　良昌 *4

*1 京大・理・地磁気センター , *2 京大生存研 , *3 名古屋大学 STE 研 , *4 極地研

SGEPSS- 地球電磁気・地球惑星圏学会　第 132 回 SGEPSS 総会および講演会 2012 年 10 月 20 日～ 23 日（札幌コンベンションセンター）

IUGONET provide the analysis software.

• 電離層電気伝導度計算、• ドキュメント、インストーラーを整備後、本プロシージャを公開

予定、

Conclusion

Issues & Solution of upper atmospheric research

The integration analysis by using various kinds of observational data is necessity for investigating the mechanism of long-term variations in the upper atmosphere. However, there are no way to cross-search their DBs which are distributed over many research institutes in Japan. For resolving this inconvenience, we build the Metadata DB in order to cross-search their DBs.

参考文献

[1] Maeda, K., Conductivity and drift in the ionosphere, J. Atmos. Terr. Phys., Vol.39, 1041-1053, 1977.[2] Banks, P. M., G. Kocharts, Aeronomy pt. A. { Academic Press, 1973[3] Haris Volland, Handbook of ATMOSPHERIC ELECTRODYNAMICS, Volume II, CRCPress, 1995.[4] 京都大学大学院理学研究科附属地磁気世界資料解析センター・ウェブページ　 http://wdc.kugi.kyoto-u.ac.jp/wdc/Sec3-j.html

• Metadata which includes location information (e.g., URI) of observational data is sent to the analysis software via OpenSearch.

•The analysis software downloads observational data by using the location information.

Collaboration by using OpenSearch

The OpenSearch interface is opened also to the other applications.

Metadata DB

We defined the IUGONET common metadata format which is based on the SPASE Data Model [1]. Basically the metadata includes URI of observational data, start & end time of observation, spatial coverage of observation and so forth.

Metadata Format & Customization Points

Ideally, the metadata DB system which can deal with arbitrary metadata is the best but

• default setting of DSpace is for Dublin Core metadata format,• IUGONET Common metadata format has deeper tree structure

than Dublin Core metadata format.

http://www.iugonet.org/

Customized DSpace-1.7.0

http://search.iugonet.org/iugonet/

Combine DBs on metadata level

Search of various observational data at 1 query

http://search.iugonet.org/open-search/

(1a) Query

(2a) Load

(3) Plot

(1b) Metadata

(2b) Wget

(2c) Data

Link to the Observational Data

Issues:

•Observational DBs are distributed.

•To find out & collect many kinds of data is difficult.

Hurdle of the interdisciplinary study

Global Observation Networks

Analysis Soft.

Metadata DB

Observational DBs

Metadata DB

Observational Data