Data Summary
Title: SWS Magnetometer Data, Southern Hemisphere (1995 onwards)
Status: onGoing
Start Time: 1995-03-01
End Time: now
Geographical Extent (deg):
West: 45
East: 168
South: -90
North: -9
Data Details
Abstract
The magnetometer data provides a measure of variations of the Earth's magnetic field in 2 or 3 orthogonal directions, typically in the geomagnetic north-south and east-west directions, as well as vertically.
Space Weather Services archives the digital magnetometer data recorded from a number of field installations, some of which are collaborative installations with other organizations.
The first available Magnetometer data was recorded at Learmonth, WA, Australia : a site jointly managed by SWS (former IPS) and ICSWSE from the 1st of March 1995.
The SWS website provides magetometer data recorded from 14 magnetometers at 12 stations. Partners include ICSWSE, AAD (Australian Antarctic Division), and UoN (Uni of Newcastle).
SWS also archives some magnetometer data recorded by GA (GeoScience Australia); however, the GA Magnetometer data is only available on the SWS WDC Intranet.
Data frequency: Daily file;
Supplementary Information:
Map of all stations : [ http://www.sws.bom.gov.au/World_Data_Centre/2/1/1 ];
Data timespan, per station : [ http://www.sws.bom.gov.au/World_Data_Centre/1/2/1 ].
Information about magnetometer stations : [ http://www.sws.bom.gov.au/World_Data_Centre/2/3 ].
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There are three different magnetometer parameter systems. Below is one system, X, Y, Z.
Another two systems are X,Y and H, D, Z.
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Parameters
++++++++++Parameter #1
Name : X ;
Description :
Represents the magnetic field strength in roughly the direction of the north magnetic pole. A positive x-value means that part of the magnetic field is pointing north. A negative x-value means that part of the magnetic field is pointing south.
Caveats
Cadence : 1 second ;
Units : nT ;
Quantity : Magnetic field ;
++++++++++Parameter #2
Name : Y ;
Description : Represents the magnetic field strength 90 degrees from the x-direction in the “magnetic east” direction. A positive y-value means that part of the magnetic field is pointing towards magnetic east. A negative y-value means that part of the magnetic field is pointing towards magnetic west.
Caveats
Cadence : 1 second ;
Units : nT ;
Quantity : Magnetic field ;
++++++++++Parameter #3
Name : Z ;
Description : represents the magnetic field strength in the local nadir direction (vertically down).
Caveats
Cadence : 1 second ;
Units : nT ;
Quantity : Magnetic field ;
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Purpose:
Magnetometer data is used to derive a number of indices relevant to specific industry groups, as well drive space weather warnings and alerts. Magnetometer data and its derived products are also used in Space Weather Services reports and products, as well for space weather forecasting and geomagnetic storm monitoring.
A geomagnetic storm is a temporary disturbance of the Earth's magnetosphere caused by its interaction with transient features of the solar wind. Geomagnetic storms may be hazardous to critical infrastructure such as power networks and long pipelines as well as interfere with mineral exploration surveys and directional drilling. Geomagnetic storms also modulate hazardous environments for satellites and lead to ionospheric disturbances that cause degraded HF radio communications, radar scintillation, and compromise GNSS precision navigation systems. Geomagnetic data is used to derive products that are used in Space Weather Services' reports and alerts primarily in the form of geomagnetic indices.
This Magnetometer dataset supports the Bureau's Space Weather Services (SWS) Program.
Keywords:
(Type: theme)
- Magnetometer
- DataType-Observations
- MeasurementType-Waves.Active
- Space Weather
Keywords:
(Type: place)
- Earth.NearSurface
- Magnetometer storm
Keywords:
(Type: theme)
- DataParam-Riometer-Waves.Active
Keywords:
(Type: theme; Thesaurus:
GCMD science keywords)
- Earth Science | Sun-Earth Interactions | Ionospher/Magnetosphere Dynamics | MAGNETIC FIELDS/MAGNETIC CURRENTS
- Earth Science | Sun-Earth Interactions | Ionospher/Magnetosphere Dynamics | GEOMAGNETIC INDICES
Citation Details
Title: SWS Magnetometer Data, Southern Hemisphere (1995 onwards)
Resource Date:
2017-06-30T11:00:00
(creation)
Identifier:
Code: http://www.bom.gov.au/metadata/19115/ANZCW0503900481
Party To Be Cited:
Organisation: Australian Antarctic Division
Role: originator
Party To Be Cited:
Organisation: Australian Bureau of Meteorology
Role: originator
Party To Be Cited:
Organisation: ICSWSE
Role: originator
Party To Be Cited:
Organisation: University of Newcastle
Role: originator
Credit: We are grateful to AAD, UoN, ICSWSE (International Center for Space Weather Science and Education, Japan), the BoM SWN, and GA - for the Magnetometer observations data.
Point Of Contact For Dataset
Point Of Contact: WDC Manager, Space Weather Services, Australian Bureau of Meteorology
Email:
sws_wdc@bom.gov.au
Web: BOM SWS World Data Centre - Magnetometer overview page [http://www.sws.bom.gov.au/World_Data_Centre/1/2/]
(WWW:LINK-1.0-http--link)
, Function: information
Custodian: WDC Manager, Space Weather Services, Australian Bureau of Meteorology
Data Extent
Extent Description: Stations in AUSTRALIA (INCLUDING EXTERNAL TERRITORIES) :
Canberra (ICSWSE/BOM), Casey (AAD), Casey (UoN/AAD), Culgoora, Darwin, Davis (AAD/ICSWSE), Davis (UoN/AAD), Hobart, Launceston (BOM/UoN), Learmonth (ICSWSE/BOM), Macquarie Is (UoN/AAD), Mawson (UoN/AAD), Norfolk Island, Townsville.
Geographical Extent (deg):
West Bound Longitude: 45
East Bound Longitude: 168
South Bound Latitude: -90
North Bound Latitude: -9
Temporal Extent:
Start Time: 1995-03-01
End Time: now
Description: 1995-03-01 to now
Dataset Constraints
Dataset Legal Constraints:
Use Constraints: copyright; otherRestrictions
Use Limitation:
The Magnetometer data has had very limited quality control.
Other Constraints:
DATA LICENCE:
Data resources freely available from the Bureau of Meteorology website and ftp site, which are described in this metadata record are licensed under the Bureau's "Default terms of use", which are explained at the following url [ http://www.bom.gov.au/other/copyright.shtml ].
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ATTRIBUTION: We request that attribution is "Australian Bureau of Meteorology, et al (date) [Title], ( http://www.bom.gov.au/metadata/19115/ANZCW0503900481 ); Downloaded from [url] on [date-of-download].
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DISCLAIMER: Please refer to [ http://www.bom.gov.au/other/disclaimer.shtml ] for disclaimer details.
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Data Information
Data Distribution Information
DownloadableData : Daily Magnetometer data from 12 stations 14 Magnetometers. daily data file online plot and download and link to data availability. [http://www.sws.bom.gov.au/World_Data_Centre/1/2]
(WWW:LINK-1.0-http--link)
, Function: download
Online viewer of real time magnetometer data and indices. [http://www.sws.bom.gov.au/Geophysical]
(WWW:LINK-1.0-http--link)
, Function: information
DownloadableData : FTP access to the all station magnetometer data and a README file. [ftp://ftp-out.sws.bom.gov.au/wdc/wdc_mag/]
(WWW:DOWNLOAD-1.0-ftp--download)
, Function: download
SPASE metadata records [SPASE format], per station/data-type [http://www.sws.bom.gov.au/World_Data_Centre/3/1/]
(WWW:LINK-1.0-http--link)
Point of truth URL of this metadata record (19115) [http://www.bom.gov.au/metadata/19115/ANZCW0503900481]
(www link)
, Function: information
Data Quality
Scope:
Level: dataset
Lineage:
Statement: The Magnetometer data are processed data and are uncalibrated.
The magnetometer data has had very limited quality control.
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Metadata Information
Metadata Identifier: ANZCW0503900481
Hierarchy Level: dataset
Hierarchy Level Name: Data Asset Audit record