Australia's weather radars explained
Bureau of Meteorology weather radars |
Image Size: | 400px |
Country: | Australia |
Manufacturer: | Various |
Number: | 69 |
Type: | C and S bands |
The majority of Australia's weather radars are operated by the Bureau of Meteorology (BoM), an executive agency of the Australian Government. The radar network is continually being upgraded with new technology such as doppler and dual polarisation to provide better now-casting. Doppler weather radars are able to detect the movement of precipitation, making it very useful in detecting damaging winds associated with precipitation,[1] and determining if a thunderstorm has a rotating updraft, a key indicator of the presence of the most dangerous type of thunderstorm, a supercell.[2] [3] [4]
The new dual polarisation radars give forecasters the ability to:
- detect debris in the atmosphere, leading to more accurate tornado warnings;[5]
- distinguish between different precipitation types, leading to better estimations of hail size and severity;
- better identify areas of heavy rainfall, leading to more accurate flood warnings;[6] and
- discern between precipitation and non-meteorological echoes such as chaff, birds, and insects.
The dual polarisation transition
The transition to polarimetric (dual-polarised) radars began in 2017 with the upgrade of 4 Meteor 1500 radars located in Melbourne, Brisbane, Adelaide, and Sydney.[7] The network has further been enhanced through the installation of 8 new polarimetric Meteor 735 radars across WA, NSW & Victoria, and two polarimetric WRM200 radars[8] manufactured by Vaisala, one to replace the radar in Dampier, WA which had been destroyed by severe tropical cyclone Damien in 2020, and one to replace an ageing radar near Gove in the Northern Territory. Six new Meteor 1700s were also installed between 2021 and 2023, 5 located in Qld, and 1 in Perth, WA, all equipped with dual polarisation technology. All the radars with the model name 'Meteor' were manufactured by Selex ES, now Leonardo.
Specifications are available for the Meteor 735, Meteor 1700, and the Vaisala WRM200.
Future radar network upgrades
The BoM has plans[9] [10] [11] to:
- build a new radar in Tennant Creek, and NT;
- replace the radar in Townsville Qld [12]
Australian Capital Territory
The Australian Capital Territory is served by the Captains Flat radar, located in New South Wales.
New South Wales
Weather radars in New South Wales[13] [14] !Name!Location!Elevation (metres)!Model Name!Beamwidth (degrees)!Range Resolution (metres)!IEEE Frequency Band!Doppler!Dual Pol!Rainfall Accumulations!NotesBrewarrina | | 149 | Meteor 735 | 1 | 250 | C | | | | |
Canberra (Captains Flat) | | 1383 | DWSR74S14-13 | 2 | 250 | S | | | | |
Grafton | | 40 | WSR74S-14 | 2 | 500 | S | | | | |
Hillston | | 144 | Meteor 735 | 1 | 250 | C | | | | |
Moree | | 220 | WF100C-8 | 1.6 | 500 | C | | | | |
Namoi (Blackjack Mountain) | | 699 | DWSR8502S-14 | 2 | 250 | S | | | | |
Newcastle | | 84 | DWSR74S14-13 | 2 | 250 | S | | | | |
Norfolk Island | | ~120 | WF100C-8 | 1.6 | | C | | | | The data from this radar is not in the national radar archive and therefore its metadata is inaccessible. |
Sydney (Terrey Hills) | | 195 | Meteor 1500 | 1 | 250 | S | | | | |
Wagga Wagga | | 221 | WF100C-8 | 1.6 | 500 | C | | | | |
Wollongong (Appin) | | 449 | DWSR8502S-14 | 2 | 250 | S | | | | |
Yeoval | | 487 | Meteor 735 | 1 | 250 | C | | | | The radar suffers moderate beam obstruction between approximately 70° and 130° due to an area of elevated terrain, meaning there is an underestimation of rain intensity in the lowest radar tilt between the same bearings. |
Kurnell | | 64 | WSR81C-12 | 1 | 250 | C | | | | The Kurnell radar is a backup radar and consequently live radar images are not available. Archived radar data is uploaded here | |
Northern Territory
Queensland
South Australia
Tasmania
Victoria
Western Australia
Research Radars
Note:
- Whilst the BoM may/may not own these radars, they are often involved with the radars for research applications.
Research radars[33] !Name!Location!Elevation!Operational status!Radar model!IEEE Frequency Band!Doppler!Dual Pol!NotesCPOL | | 50m | Inactive (6/12/1998 - 2/5/2017) | N/A | C | | | The data which CPOL has collected is used to study the microphysical and dynamic properties of thunderstorm convection in Darwin, Australia, enabling the improvement of atmospheric models' representations of the convection formed during the pre-monsoon buildup and active monsoon.[34] [35] |
CP2 | | 185.5m | Inactive (1/11/2007 - 1/6/2015) | N/A | S & X | | | The CP2 Research radar was a 1970's era radar, which the BoM received as a gift from the NCAR in the United States. The BoM retrofitted it with modern parts which gave it the unique ability to collect data at two frequencies, S and X band. The upgrades also provided state of the art dual polarisation and doppler technologies. The CP in its title stands for cloud physics, and the radar has been used to research thunderstorms, drive improvements in rainfall measurements and hail detection and explore the potential for cloud seeding. [36] |
Ocean Pol | N/A (Mobile radar) | 22m | Active (22/3/2015-) | N/A | C | | | This research radar is installed on the RV Investigator, an ocean research vessel. The radar collects data on research voyages, including trips to Antarctic waters, Heard Island and circumnavigations of Australia. [37] |
UQXPOL[38] | N/A (Mobile radar) | N/A | Active (14/10/2014-) | Furuno WR-2100 | X | | | This research radar is operated by the University of Queensland and has been involved with research to improve hail detection and hail size prediction algorithms,[39] and also with research into bushfires and pyroconvection as part of a $1 million google.org philanthropic venture.[40] [41] |
Monash University x-band | N/A (Mobile radar) | N/A | Active | Meteor 60DX | X | | | | |
See also
Related articles
External links
Notes and References
- Web site: Severe Weather 101: Detecting Damaging Winds . NSSL . 6 January 2023.
- Web site: Severe thunderstorms . BoM . 8 January 2023.
- Lemon, Leslie R. . Ralph J. Donaldson . Donald W. Burgess . Rodger A. Brown . Doppler Radar Application to Severe Thunderstorm Study and Potential Real-Time Warning . Bulletin of the American Meteorological Society . 1977 . 58 . 11 . 1187–1193 . American Meteorological Society . 10.1175/1520-0477(1977)058<1187:DRATST>2.0.CO;2 . 26218232 . 1977BAMS...58.1187L . 6 January 2023. free .
- Web site: Supercell Structure and Dynamics . NWS . 6 January 2023.
- Web site: Dual-Pol Applications . NSSL . 7 January 2023.
- Luciana K. Cunha . James A. Smith . Mary Lynn Baeck . Witold F. Krajewski . An Early Performance Evaluation of the NEXRAD Dual-Polarization Radar Rainfall Estimates for Urban Flood Applications . Weather and Forecasting . 2013 . 28 . 6 . 1478–1497 . 10.1175/WAF-D-13-00046.1 . 2013WtFor..28.1478C . 6 January 2023. free .
- Web site: Alain Protat . Radar Science and Nowcasting Dual-pol Radar Plans at the Bureau . 9 January 2023.
- Web site: 10.25914/5cb686a8d9450. Soderholm. Joshua. Protat. A.. Jakob. C.. Monash University, National Computational Infrastructure, and Australian Bureau of Meteorology. Operation Weather Radar Network Archive (Australia). NCI THREDDS . 2017 . 5 June 2023.
- Web site: Project details for sites across Australia . BoM . 13 January 2023.
- Web site: Replacing radars for a more resilient network . BoM . 13 January 2023.
- Web site: Increasing radar coverage across Australia . BoM . 13 January 2023.
- Web site: Radar Upgrades . BoM . 5 May 2023.
- Web site: New South Wales Information. live. https://web.archive.org/web/20211108000906/http://www.bom.gov.au/australia/radar/info/nsw_info.shtml. 8 November 2021. 8 November 2021. Bureau of Meteorology.
- Web site: NSW Radar Sites Table. live. Bureau of Meteorology. 2021-11-11. 2021-11-11. https://web.archive.org/web/20211111031129/http://www.bom.gov.au/australia/radar/nsw_radar_sites_table.shtml.
- Web site: Northern Territory Information. live. Bureau of Meteorology. 2021-11-09. 2021-04-22. https://web.archive.org/web/20210422181709/http://www.bom.gov.au/australia/radar/info/nt_info.shtml.
- Web site: NT Radar Sites Table. live. Bureau of Meteorology. 2021-11-11. 2021-11-11. https://web.archive.org/web/20211111031126/http://www.bom.gov.au/australia/radar/nt_radar_sites_table.shtml.
- Web site: Queensland Information . BoM . 9 January 2023.
- Web site: QLD Radar Sites Table. live. Bureau of Meteorology. 2021-11-11. 2021-11-11. https://web.archive.org/web/20211111031129/http://www.bom.gov.au/australia/radar/qld_radar_sites_table.shtml.
- Web site: C-Band Solid-State Radar . Meteopress . 19 March 2023.
- Web site: Mackay Radar Now Live . Media Release-Bureau of Meteorology . 11 January 2024.
- Web site: Brisbane's Upgraded Marburg Radar Now Live . Media Release-Bureau of Meteorology . 11 January 2024.
- Web site: New weather radar at Richmond supports North Queensland communities and industry . BoM . 13 January 2023.
- Web site: COVID-19 restrictions and floods delay delivery of Taroom weather radar. 2022-07-21.
- Web site: South Australia Information. live. Bureau of Meteorology. 2021-11-09. 2021-04-27. https://web.archive.org/web/20210427220857/http://www.bom.gov.au/australia/radar/info/sa_info.shtml.
- Web site: SA Radar Sites Table. live. Bureau of Meteorology. 2021-11-11. 2021-11-11. https://web.archive.org/web/20211111031128/http://www.bom.gov.au/australia/radar/sa_radar_sites_table.shtml.
- Web site: Tasmania Information . Bureau of Meteorology . 6 January 2023.
- Web site: TAS Radar Sites Table. live. Bureau of Meteorology. 2021-11-11. 2021-11-11. https://web.archive.org/web/20211111034218/http://www.bom.gov.au/australia/radar/tas_radar_sites_table.shtml.
- Web site: Victorian Information. live. 2021-11-09. 2021-06-26. https://web.archive.org/web/20210626103826/http://www.bom.gov.au/australia/radar/info/vic_info.shtml.
- Web site: VIC Radar Sites Table. live. Bureau of Meteorology. 2021-11-11. 2021-11-11. https://web.archive.org/web/20211111065008/http://www.bom.gov.au/australia/radar/vic_radar_sites_table.shtml.
- Web site: Western Australia Information. live. 2021-11-09. 2021-10-19. https://web.archive.org/web/20211019103612/http://www.bom.gov.au/australia/radar/info/wa_info.shtml.
- Web site: WA Radar Sites Table. live. Bureau of Meteorology. 2021-11-11. 2021-11-11. https://web.archive.org/web/20211111205920/http://www.bom.gov.au/australia/radar/wa_radar_sites_table.shtml.
- Web site: Weather Radar WRM200 . Vaisala . 9 January 2023.
- Web site: Dataset: Level 1: Radar Volumes/radar_site_list_research.csv . NCI Thredds . National Computational Infrastructure, Australian Bureau of Meteorology . 21 April 2023 . https://web.archive.org/web/20230421111704/https://dapds00.nci.org.au/thredds/fileServer/rq0/radar_site_list_research.csv . 21 April 2023.
- Web site: CPOL . ARM . 5 January 2023.
- Web site: CPOL Research Radar . Openradar . 5 January 2023.
- Web site: Redbank Plains research radar . BoM . 5 January 2023.
- Web site: Ocean Pol Research Radar . Australian Unified Radar Archive . 5 January 2023.
- Web site: Nicholas McCarthy . Hamish McGowan . Adrien Guyot . Andrew Dowdy . MOBILE X-POL RADAR A New Tool for Investigating Pyroconvection and Associated Wildfire Meteorology . 3 December 2023.
- Web site: Dr Joshua Soderholm . Prof Hamish McGowan . Dr Matthew Mason . Storm Hazards Testbed . https://web.archive.org/web/20230528033652/https://www.monash.edu/__data/assets/pdf_file/0003/1211808/Soderholm-RadarWorkshop2017.pdf . 28 May 2023. 2023-05-28 .
- Web site: Ralic . Marija . The Google.org grantee using AI to detect bushfire risks . 3 December 2023.
- Mobile X-pol radar: a new tool for investigating pyroconvection and associated wildfire meteorology . Bulletin of the American Meteorological Society . 2018 . 10.1175/BAMS-D-16-0118.1 . https://web.archive.org/web/20220620100913/https://journals.ametsoc.org/view/journals/bams/99/6/bams-d-16-0118.1.xml . 28 May 2023. 2022-06-20 . McCarthy . Nicholas . McGowan . Hamish . Guyot . Adrien . Dowdy . Andrew . 99 . 6 . 1177–1195 . 2018BAMS...99.1177M . 85512739 .