Metadata details
ASAC_327
All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).
- Citation
- Dyson, P.L. (2000) Radio Propagation Studies, Ver. 1, Australian Antarctic Data Centre - https://data.aad.gov.au/metadata/ASAC_327, (Restricted access)
- Title
- Radio Propagation Studies
- Data Centre
- Australian Antarctic Data Centre, Australia
- Created Date
- 2000-07-27
- Revision Date
- 2018-03-20
- Expected Date of Data Release
- None
- Data Version
- 1
- Parent record
- None
Datasets and documents
Related links
Description
Metadata record for data from ASAC Project 327
See the link below for public details on this project.
From the abstract of one of the referenced papers:
A monitoring system was required to study the Doppler frequency shifts and the propagation delay of modulation (so-called group delay) of the carrier frequencies for VNG, the Standard Time Frequency and Time Signal Service transmitted by Telecom Australia from Lyndhurst, Victoria (38 degrees 33 minutes S, 145 degrees 15.7 minutes E). The present study is a continuation of a similar monitoring of VNG on a much shorter path within Victoria. The report describes the equipment (including HF equipment and dedicated minicomputers) used in creating a monitoring system for Macquarie Island at 54 degrees 30 minutes S, 158 degrees 57 minutes E.
The results were in the form of chart recordings and computer-produced one-minute summaries, with the real-time recordings also made during summer on an audio tape machine for later analysis. Diurnal Doppler variations were derived from the computer data. It is demonstrated that group delay can be more accurately determined by software signal analysis than by using a hardware level discriminator.
Quality
Dates provided in temporal coverage are approximate only.
Access
A pdf copy of one of the referenced papers is available for download from the provided URL to AAD staff only.
Temporal Coverages
- Start date: 1986-09-01 - Stop date: 1987-03-31
Spatial Coverages
Science Keywords
- EARTH SCIENCE > SPECTRAL/ENGINEERING > RADAR > DOPPLER VELOCITY
- EARTH SCIENCE > SPECTRAL/ENGINEERING > RADIO WAVE
Additional Keywords
- Doppler shifts
- high frequency monitoring
- ionosphere
- Macquarie Island
Locations
- OCEAN > SOUTHERN OCEAN
- OCEAN > SOUTHERN OCEAN
- GEOGRAPHIC REGION > POLAR
- VERTICAL LOCATION > IONOSPHERE
Platforms
- FIXED OBSERVATION STATIONS
Instruments
- RADIO BURST RECEIVERS
Researchers
- dyson, peter (INVESTIGATOR,TECHNICAL CONTACT,DIF AUTHOR)
Use Constraints
This data set conforms to the CCBY Attribution License
(http://creativecommons.org/licenses/by/4.0/).
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_327 when using these data.
Project
ISO Topic
- CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
- IMAGERY/BASE MAPS/EARTH COVER
- UTILITIES/COMMUNICATIONS
Dataset Language
- ENGLISH
Orignating Centre
- Australian Antarctic Division
Dataset Progress
- COMPLETE
IDN Node
- AMD/AU
- CEOS
- AMD
Publications
- Jongens S., Essex E.A. (1988) A low-cost ionospheric doppler and propagation delay monitor., Papers and Proceedings of the Royal Society of Tasmania, 122(1), 313-318
- Jongens S., Essex E.A., Burns G.B. (1988) An ionospheric Doppler and propagation delay monitor as operated at Macquarie Island 1986-87, ANARE Research Notes, 60, 79
Metadata Revision History
2010-07-22 - record updated by Dave Connell to change URL Content Type. 2015-06-19 - record updated by Dave Connell to correct the download URL. 2016-09-23 - record updated by Dave Connell - basic updates. 2018-03-20 - record updated by Dave Connell - basic updates.
