The geomagnetic field 1-decisecond digital data observed at Memambetsu (MMB) in IAGA-2002 format. Data file comprises: Twelve mandatory file header records, Unlimited optional comment records, One mandatory data header record, A series of data records. Every record is 70 characters long plus the machine-dependent carriage return / line feed. Details of the format is described at http://www.ngdc.noaa.gov/IAGA/vdat/iagaformat.html.
Version:2.5.0
The geomagnetic field 1-decisecond digital data observed at Memambetsu (MMB) in IAGA-2002 format. Data file comprises: Twelve mandatory file header records, Unlimited optional comment records, One mandatory data header record, A series of data records. Every record is 70 characters long plus the machine-dependent carriage return / line feed. Details of the format is described at http://www.ngdc.noaa.gov/IAGA/vdat/iagaformat.html.
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | GeneralContact | spase://IUGONET/Person/Chosaka.KMO-JMA |
This service allows the download of definitive geomagnetic data, which have been corrected for baseline variations and which have had spikes removed and gaps filled where possible. Other difinitive data have the same quality.
Reference: MMB
1-decisecond value is instantaneous value on the decisecond. Until 1 Jan. 2012, an analog high-pass filter was implemented, which passed frequencies with a period longer than about 150 s. Since then, raw data have been provided. X(northward+)[nT], Y(eastword+)[nT], Z(downward+)[nT]