Magnetic Field Database from the STEP Polar Network

1. Name of Database:  Magnetic Field Database from the STEP Polar Network

2. Institution:　Department of Earth and Planetary Science
        　 　    Graduate School of Science
       　 　     The University of Tokyo

3. Contents of Database:

This database provides or is expected to include information and data obtained at over forty 
locations from the magnetometer networks that we have conducted in the northern polar region 
since 1984.
The data before 1991 are those obtained in several limited periods that we had observation 
campaigns or those recorded at a few of sites which were operated in semi-routine base. 
The present network system which we call as "STEP Polar Network" started in 1991 and was 
yearly enhanced during the international coordinated program of Solar-Terrestrial Energy 
Program(STEP) that lasted until 1997.
We create and provide this database those data for public use in an order of priority composed 
of the following categories; (A)on type of data: (a1) Low time resolution (1 minute) data and 
(a2) high time resolution(1 second) data obtained by fluxgate magnetometgers; (a3) Induction
magnetometer data which is sampled by 10Hz; (P) on data period: (p1) the STEP period, (p2) the 
post STEP period, and (p3) the pre-STEP period.
Data presently accessible from our web page are mainly for combined categories of (a1)&(p1), 
(a1)&(p2), and (a2)&(p1) as are shown in the matrix below;
             (a1)  (a2)  (a3)
        (p1)  Y    Y   Y--
        (p2)  Y-   Y   Y--
        (p3)  Y-   Y--　Y---
        Y:fully accessible, Y-:most or major part is accessible,
        Y--:only samples, Y---:data exist but no accessible yet.
Necessary information, characteristics of data, policy on data usage, practical accesses to each 
data, and etc. are available by selection of menu items in the left side(*) window of the web 
page, such as "S&Pick/1min" (for searching and picking data files of 1 minute time resolution).
  (*) This is the case if you use a window browser responsible to frame commands.

4. Examples of Database:



5. Contact:

　Kanji Hayashi
　Department of Earth and Planetary Science
　Graduate School of Science
　The University of Tokyo
　7-3-1 Hongo, Bunkyo, Tokyo, 113-0033, Japan
　hayashi[AT]eps.s.u-tokyo.ac.jp
　Phone +81-3-5841-4587 Fax +81-3-5841-8321

6. Public Offering of Database:

  

S-RAMP Database Catalog.

S-RAMP Home Page.