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Observatory Operations - Riometer and Magnetometer Data from the Australian Antarctic Territory and Riometer Data from Macquarie Island
Entry ID: ASAC_527


Summary
Abstract: An analogue data acquisition system (ADAS), designed to collect time-stamped, time series data from any analogue signal is currently used to log data from the riometer, magnetic pulsations and fluxgate magnetometers. Data collection is synchronised to a GPS (global positioning system) chronometer allowing data to be sampled with a time resolution of one millisecond, allowing accurate propagation delays to be estimated from data recorded at multiple sites.

A riometer is essentially a wide-angle radio telescope that is used for studying the aurora. It measures the combined signals at 30MHz of the radio stars in its wide (60 degree) vertically oriented beam.

The riometer data consists of 30 MHz signal relative intensities determined using a vertically oriented yagi dipole antenna at 10 second sample intervals. Only raw data are generally available. Calibration signals at ~1630UT include a 'zero' reference level.

This metadata record also incorporates data from ASAC project 22 (ASAC_22) - Observatory Operations: Riometers, and ASAC project 23 (ASAC_23) - Observatory Operations: All Sky Cameras.

To read the ADAS data format, special software must be downloaded and installed. This software is available for download from the url given below.

Magnetometer data are supplied in two formats. 1) raw data in ADAS format, and 2) processed data which can be viewed with a text editor. Processed data are held as 1 second averages. It is recommended that processed data be used. At the end of each processed data file, are further quality statements, and information on how to interpret the dataset. For more information on the procedure used to process the data, see ANARE Research Notes 146. The relevant chapter, chapter 30, is available for download at the url given below.

For magnetometer data from Macquarie Island or Mawson, please contact Geoscience Australia (www.ga.gov.au).

See also the World Data Centre at IPS Radio and Space Services (see the link below), for more finely processed data.

The fields in this dataset are:

Magnetometer:

Station
Date
Latitude
Longitude
X component - positive geographic North (horizontal)
Y component - positive geographic East (horizontal)
Z component - positive downwards (vertical)

Riometer:

Station
Date
Digital value signal of cosmic noise at 30 MHz

Related URL
Link: View Related Information
Description: Download point for the data - 1987-1989


Link: View Related Information
Description: Download point for the data - 1990-1991


Link: View Related Information
Description: Download point for the data - 1992-1993


Link: View Related Information
Description: Download point for the data - 1994-1995


Link: View Related Information
Description: Download point for the data - 1996-1997


Link: View Related Information
Description: Download point for the data - 1998


Link: View Related Information
Description: Download point for the data - 1999


Link: View Related Information
Description: Download point for the data - 2000


Link: View Related Information
Description: Download point for the data - 2001


Link: View Related Information
Description: Download point for the data - 2002


Link: View Related Information
Description: Download point for the data - 2003


Link: View Related Information
Description: Download point for the data - 2004


Link: View Related Information
Description: Download point for the ADAS viewing software


Link: View Related Information
Description: Download point for the Magnetometer Paper


Link: View Related Information
Description: Public information for ASAC project 527


Link: View Related Information
Description: Public information for ASAC project 22


Link: View Related Information
Description: Public information for ASAC project 23


Link: View Related Information
Description: IPS Radio and Space Services


Link: View Related Information
Description: Citation reference for this metadata record and dataset


Geographic Coverage
 N: -66.0 S: -66.0  E: 111.0  W: 111.0
 N: -68.0 S: -68.0  E: 78.0  W: 78.0
 N: -67.0 S: -67.0  E: 63.0  W: 63.0
 N: -54.0 S: -54.0  E: 158.0  W: 158.0

Data Set Citation
Dataset Originator/Creator: Morris, R.J., Burns, G. and Symons, L.
Dataset Title: Observatory Operations - Riometer and Magnetometer Data from the Australian Antarctic Territory and Riometer Data from Macquarie Island
Dataset Series Name: CAASM Metadata
Dataset Release Date: 2005-12-01
Dataset Publisher: Australian Antarctic Data Centre
Online Resource: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD...


Temporal Coverage
Start Date: 1987-10-11
Stop Date: 2004-12-31


Location Keywords
OCEAN > SOUTHERN OCEAN
OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND
CONTINENT > ANTARCTICA > Davis
CONTINENT > ANTARCTICA > Mawson
CONTINENT > ANTARCTICA > Casey
GEOGRAPHIC REGION > POLAR
VERTICAL LOCATION > IONOSPHERE


Data Resolution
Temporal Resolution: 10 s


Science Keywords
ATMOSPHERE >ATMOSPHERIC RADIATION    [Definition]
SUN-EARTH INTERACTIONS >IONOSPHERE/MAGNETOSPHERE DYNAMICS >AURORAE    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ENERGETIC PARTICLE PROPERTIES >ENERGY DEPOSITION    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ACTIVITY    [Definition]
SOLID EARTH >GEOMAGNETISM >MAGNETIC FIELD    [Definition]


ISO Topic Category
null
null


Instrument
MAGNETOMETERS    [Information]
RIOMETER >Relative Ionospheric Opacity Meter    [Information]


Quality
Riometer:
Only raw data (cosmic noise intensity, with zero levels marked in a sequence around 16:30UT) are available from this source.

Magnetometer:
See end of processed files for notes on reliability of data from each day.


Access Constraints
Data are available for use in research activities provided consent of, and suitable reference to experiments and principal investigator is given.

Data stored in ADAS Format.

The data are publicly available for download from the provided URL. Data are available in a number of small download files, rather than one large file.


Use Constraints
This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_527 when using these data.


Keywords
ANTARCTICA
AURORA
COSMIC NOISE
DATE
ELECTRONS
IONOSPHERE
LATITUDE
LONGITUDE
MAGNETIC FIELDS
MAGNETOMETER
POSITIVE DOWNWARDS
POSITIVE GEOGRAPHIC EAST
POSITIVE GEOGRAPHIC NORTH
RIOMETER
SOLAR EVENTS
STATION


Data Set Progress
COMPLETE


Originating Center
Australian Antarctic Division


Data Center
Australian Antarctic Data Centre, Australia    [Information]
Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia



Distribution
Distribution_Media: HTTP
Distribution_Size: 7 GB
Distribution_Format: ADAS
Fees: free


Publications/References
Burns, G.B., McLoughlin, R. (1989), Routine observatory operations by the Australian Antarctic Division., Conde, M., Beggs, H. (ed.) ANARE Research Notes, 69, 189-192

Dilong, X., Burns, G.B. (1988), Riometer absorption morphology at Davis and Casey stations., ANARE Research Notes, 61, 33

Burns, G.B., Klekociuk, A.R. (1994), Davis and Casey magnetic field data., Morris, R.J. (ed.) ANARE Research Notes, 92, 17-41

Roberts, P.J., Burns, G.B., Morris, R.J. (2001), Davis and Casey magnetic field data - an Australian Antarctic Division review., Morris, R.J., Wilkinson, P.J. (ed.) ANARE Reports, 146, 421-468

Creation and Review Dates
DIF Creation Date: 1999-10-07
Last DIF Revision Date: 2016-12-02



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