Geomagnetic time-series data  

Authors / CoAuthors

Crosthwaite, P.G. | Hitchman, A.P. | Hopgood, P.A. | Lewis, A.M. | Torr, G. | Wang, L.

Abstract

These data are the time series recorded by Geoscience Australia`s geomagnetic observatories in Australia and Antarctica. Australian observatories are located near Canberra (ACT), Charters Towers (Queensland), Alice Springs and Kakadu (NT), Gnangara and Learmonth (WA). Antarctic observatories are located at Macquarie Island, Mawson and Casey. The time series record the temporal variations of three components of the geomagnetic field and its total-field strength at each location. The rates at which the variations are recorded are once per second for the 3-component data and once every 10 seconds for the total-field data. These time series are also used to derive a range of subsidiary time series consisting of data samples at 1-hour, 1-day, 1-month and 1-year intervals. These data are calibrated by regular (usually weekly) absolute measurements of the magnetic field. These calibrations allow corrections to be made for instrument drift so that the long-term (annual, decadal) variations of the geomagnetic field can be tracked accurately.

Product Type

dataset

eCat Id

67195

Contact for the resource

Keywords

• Satellite Imagery

• AU

Australian and New Zealand Standard Research Classification (ANZSRC)

• Earth Sciences

• Published_Internal

Publication Date

2008-07-16T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - restricted

Use - license

Status

Purpose

Maintenance Information

asNeeded

Topic Category

imageryBaseMapsEarthCover

Series Information

Lineage

These time series may be in reported, adjusted or definitive form, according to the processing that has been applied to them. Reported data are as recorded at an observatory. They have not had baseline corrections applied, may contain spikes and may have missing values. Adjusted data have may have had baselines modified, spikes removed or gaps filled. Definitive data have been corrected for baseline variations, have had spikes removed and gaps filled where possible. Data are described as definitive when it is considered that no further adjustments can be made to improve upon the correctness and completeness of the data.

Parent Information

Extents

[-45.0, -10.0, 110.0, 160.0]

Reference System

Spatial Resolution

Service Information

Associations

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Source Information

Source data not available.