Met Office

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Met Office
Met Office.svg
Logo of the Met Office since 1987
Agency overview
Formed1 August 1854;169 years ago (1 August 1854)
JurisdictionUnited Kingdom
Headquarters Met Office Operations Centre, Exeter, Devon (since December 2003)
Employees2,223 (March 2022) [1]
Minister responsible
Agency executive
Parent agency Department for Science, Innovation and Technology
Website www.metoffice.gov.uk

The Meteorological Office, abbreviated as the Met Office, [2] is the United Kingdom's national weather service. It is an executive agency and trading fund of the Department for Science, Innovation and Technology and is led by CEO [3] Penelope Endersby, who took on the role as Chief Executive in December 2018 and is the first woman to do so. [4] The Met Office makes meteorological predictions across all timescales from weather forecasts to climate change.

Contents

History

Vice Admiral Robert FitzRoy, founder of the Met Office Robert Fitzroy.jpg
Vice Admiral Robert FitzRoy, founder of the Met Office

The Met Office was established on 1 August 1854 [5] as a small department within the Board of Trade under Vice Admiral Robert FitzRoy as a service to mariners. The loss of the passenger vessel, the Royal Charter, and 459 lives off the coast of Anglesey in a violent storm in October 1859 led to the first gale warning service. FitzRoy established a network of 15 coastal stations from which visual gale warnings could be provided for ships at sea.

The new electric telegraph enabled rapid dissemination of warnings and also led to the development of an observational network which could then be used to provide synoptic analysis. The Met Office started in 1861 to provide weather forecasts to newspapers. FitzRoy requested the daily traces of the photo-barograph at Kew Observatory (invented by Francis Ronalds) to assist in this task and similar barographs and as well as instruments to continuously record other meteorological parameters were later provided to stations across the observing network. [6] [7] Publication of forecasts ceased in May 1866 after FitzRoy's death but recommenced in April 1879.

Connection with the Ministry of Defence

Former Met Office building in Bracknell, Berkshire, before relocation to Exeter, since demolished The Meteorological Office, Bracknell - geograph.org.uk - 489065.jpg
Former Met Office building in Bracknell, Berkshire, before relocation to Exeter, since demolished

Following the First World War, the Met Office became part of the Air Ministry in 1919, the weather observed from the top of Adastral House (where the Air Ministry was based) giving rise to the phrase "The weather on the Air Ministry roof". As a result of the need for weather information for aviation, the Met Office located many of its observation and data collection points on RAF airfields, and this accounts for the large number of military airfields mentioned in weather reports even today. In 1936 the Met Office split with services to the Royal Navy being provided by its own forecasting services.

It became an executive agency of the Ministry of Defence in April 1990, a quasi-governmental role, being required to act commercially.

Changes of ministry

Following a machinery of government change, the Met Office became part of the Department for Business, Innovation and Skills on 18 July 2011, [8] and subsequently part of the Department for Business, Energy and Industrial Strategy following the merger of BIS and the Department of Energy and Climate Change on 14 July 2016. [9]

Although no longer part of the MOD, the Met Office maintains strong links with the military through its front line offices at RAF and Army bases both in the UK and overseas and its involvement in the Joint Operations Meteorology and Oceanography Centre (JOMOC) with the Royal Navy. The Mobile Met Unit (MMU) are a unit consisting of Met Office staff who are also RAF reservists who accompany forward units in times of conflict advising the armed forces of the conditions for battle, particularly the RAF.

Locations

The 2003 headquarters building on the edge of Exeter Ukmo-exeter-panorama.JPG
The 2003 headquarters building on the edge of Exeter

In September 2003 the Met Office moved its headquarters from Bracknell in Berkshire to a purpose-built £80m structure at Exeter Business Park, near junction 29 of the M5 motorway. The new building was officially opened on 21 June 2004 – a few weeks short of the Met Office's 150th anniversary – by Robert May, Baron May of Oxford.

It has a worldwide presence –including a forecasting centre in Aberdeen, and offices in Gibraltar and on the Falklands. Other outposts lodge in establishments such as the MetOffice@Reading (formerly the Joint Centre for Mesoscale Meteorology) at University of Reading in Berkshire, the Joint Centre for Hydro-Meteorological Research (JCHMR) site at Wallingford in Oxfordshire, and there is a Met Office presence at Army and Air Force bases within the UK and abroad (including frontline units in conflict zones). [10] Royal Navy weather forecasts are generally provided by naval officers, not Met Office personnel.

Forecasts

Shipping forecast

The Shipping Forecast is produced by the Met Office and broadcast on BBC Radio 4, for those traversing the seas around the British Isles.

Weather forecasting and warnings

The Met Office issues Severe Weather Warnings for the United Kingdom through the National Severe Weather Warning Service (NSWWS). These warn of weather events that may affect transport infrastructure and endanger people's lives. In March 2008, the system was improved and a new stage of warning was introduced, the 'Advisory'. [11]

The Met Office along with Irish counterpart Met Éireann introduced a storm naming system in September 2015 to provide a single authoritative naming system for the storms that affect the UK and Ireland. [12] [13] The first named storm under this system, Abigail was announced on 10 November 2015. [14] In 2019, the Met Office and Met Éireann were joined by Dutch national weather forecasting service the Royal Netherlands Meteorological Institute (KNMI), There Are Now Recommendations To Name Heatwaves This Summer As Part Of A Trial. [15]

Weather prediction models

The main role of the Met Office is to produce forecast models by gathering information from weather satellites in space and observations on earth, then processing it with a variety of models, based on a software package known as the unified model. The principal weather products for UK customers are 36-hour forecasts from the operational 1.5 km resolution UKV model covering the UK and surroundings [16] (replacing the 4 km model), 48-hour forecasts from the 12 km resolution NAE model covering Europe and the North Atlantic, and 144-hour forecasts from the 25 km resolution global model (replacing the 40 km global model). [17] The Met Office's Global Model forecast has consistently been in the top 3 for global weather forecast performance (in the decades up to 2010) in independent verification to WMO standards. [18] [ failed verification ] Products for other regions of the globe are sold to customers abroad, provided for MOD operations abroad or provided free to developing countries in Africa. If necessary, forecasters may make adjustments to the computer forecasts. Data is stored in the Met Office's own PP-format.

Flood Forecasting Centre

Formed in 2009, the Flood Forecasting Centre (FFC) is a joint venture between the Environment Agency and the Met Office to provide flood risk guidance for England and Wales. The Centre is jointly staffed from both parent organisations and is based in the Operations Centre at the Met Office headquarters in Exeter. [19] In Scotland this role is performed by the Scottish Flood Forecasting Service, a joint venture between the Scottish Environment Protection Agency (SEPA) and the Met Office. [20]

Seasonal forecasts

The Met Office makes seasonal and long range forecasts and distributes them to customers and users globally. [21] The Met Office was the first climate and weather forecast provider to be recognised as a Global Producing Centre of long range forecasts by the World Meteorological Organisation and continues to provide forecasts to the WMO for dissemination to other national meteorological services worldwide. [22]

Met Office research has broken new ground in seasonal forecasting for the extratropics and has demonstrated its abilities in its seasonal predictions of the North Atlantic Oscillation and winter climate for Europe and North America. [23] [24]

Supply of forecasts for broadcasting companies

One of the main media companies, ITV produce forecasts for ITV Weather using the Met Office's data and animated weather symbols.

The BBC used to use Met Office forecasts for all of its output, but on 23 August 2015, it was announced that the BBC would be replacing the Met Office with MeteoGroup, a competing provider, as part of the corporation's legal obligation to provide best value for money for the licence fee payers. [25] The BBC still uses some Met Office data for certain forecasts, particularly severe weather warnings and the Shipping Forecast.

World Area Forecast Centre

The Met Office is one of only two World Area Forecast Centres or WAFCs, and is referred to as WAFC London. The other WAFC is located in Kansas City, Missouri, and known as WAFC Washington. WAFC data is used daily to safely and economically route aircraft, particularly on long-haul journeys. The data provides details of wind speed and direction, air temperature, cloud type and tops, and other features.

Volcanic Ash Advisory Centre

As part of its aviation forecast operation the Met Office operates the London Volcanic Ash Advisory Centre (VAAC). [26] This provides forecasts to the aviation industry of volcanic ash clouds that could enter aircraft flight paths and impact aviation safety. The London VAAC, one of nine worldwide, is responsible for the area covering the British Isles, the north east Atlantic and Iceland. The VAAC were set up by the International Civil Aviation Organization (ICAO), an agency of the United Nations, as part of the International Airways Volcano Watch (IAVW). [27] The London VAAC makes use of satellite images, plus seismic, radar and visual observation data from Iceland, [28] the location of all of the active volcanoes in its area of responsibility. The NAME dispersion model developed by the Met Office is used to forecast the movement of the ash clouds 6, 12 and 18 hours from the time of the alert at different flight levels.

Air quality

The Met Office issues air quality forecasts made using NAME, the Met Office's medium-to-long-range atmospheric dispersion model. It was developed as a nuclear accident model following the Chernobyl accident in 1986, but has since evolved into an all-purpose dispersion model capable of predicting the transport, transformation and deposition of a wide class of airborne materials. NAME is used operationally by the Met Office as an emergency response model as well as for routine air quality forecasting. Aerosol dispersion is calculated using the United Kingdom Chemistry and Aerosols model.

The forecast is produced for pollutants and their typical health effects are shown in the following table.

PollutantHealth Effects at High Level
Nitrogen dioxide
Ozone
Sulphur dioxide		These gases irritate the airways of the lungs, increasing the symptoms
of those suffering from lung diseases.
 
Particulates
 		Fine particles can be carried deep into the lungs where they can cause
inflammation and a worsening of heart and lung diseases

Decadal Predictions

The Met Office coordinates the production and collation of decadal climate prediction from climate centres around the world as part of its responsibilities as World Meteorological Organisation Lead Centre for Annual to Decadal Climate Prediction. These predictions are updated each year and a summary, the Global Annual to Decadal Climate Update is published each year.

IPCC

Until 2001 the Met Office hosted the Intergovernmental Panel on Climate Change working group, chaired by John Houghton, on climate science. In 2001 the working group moved to the National Oceanic and Atmospheric Administration. [29]

High performance computing

Due to the large amount of computation needed for Numerical Weather Prediction and the Unified model, the Met Office has had some of the most powerful supercomputers in the world. In November 1997 the Met Office supercomputer was ranked third in the world. [30]

YearComputerCalculations per secondHorizontal resolution (global/local)Number of vertical levels
1959 Ferranti Mercury 3 kiloflops (N.A./320 km)2 levels
1965 English Electric KDF9 50 kiloflops(N.A./300 km)3 levels
1972 IBM System/360 1954 megaflops (300 km/100 km)10 levels
1982 CDC Cyber 205200 megaflops(150 km/75 km)15 levels
1991 Cray Y-MP C90/1610 gigaflops (90 km/17 km)19 levels
1997 Cray T3E 900/1200430 gigaflops(60 km/12 km)38 levels
2004 NEC SX-6 2.0 teraflops (40 km/12 km)50 levels
2006 NEC SX-8 and SX-65.4 teraflops(40 km/4 km)50 levels
2009 IBM Power6 140 teraflops(17 km/1.5 km)70 levels
2015 Cray XC40 16 petaflops (10 km/1.5 km)

Customer service

Since 2012 the Met Office Contact Centre (known as the Weather Desk) has been part of Contact Centre Panel's 'Top 50 Companies for Customer Service' programme. [31]

In 2015 the Met Office won awards in the following categories: [32]

Weather stations

Reports (observations) from weather stations can be automatic (totally machine produced), semi-automatic (part-machine and part manual), or manual. Some stations produce manual observations during business hours and revert to automatic observations outside these times. Many stations feature "present weather" sensors, CCTV, etc. There is also a network of 'upper air' stations, using radiosondes. The six main radiosonde stations in the UK are Camborne, Lerwick, Albemarle, Watnall, Castor Bay and Herstmonceux.

Some stations have limited reporting times, while other report continuously, mainly RAF and Army Air Corps stations where a staffed met office is provided for military operations. The "standard" is a once-hourly reporting schedule, but automatic stations can often be "polled" as required, while stations at airfields report twice-hourly, with additional (often frequent in times of bad weather) special reports as necessary to inform airfield authorities of changes to the weather that may affect aviation operations.

Some stations report only CLIMAT data (e.g. maximum and minimum temperatures, rainfall totals over a period, etc.) and these are usually recorded at 0900 and 2100 hours daily. Weather reports are often performed by observers not specifically employed by the Met Office, such as Air traffic control staff, coastguards, university staff and so on.

Meteorological Research Unit and the Facility for Airborne Atmospheric Measurements (FAAM)

Meteorological Research was carried out at RAE Bedford with instruments being carried by barrage balloons until the RAE facility closed in the 1980s.

The Met Office association with Cardington continues by maintaining a Meteorological Research Unit (MRU). This is responsible for conducting research into part of the atmosphere called the boundary layer by using a tethered balloon which is kept in a small portable hangar. [34] [35]

FAAM

FAAM BAe146-300 takes off at RIAT, RAF Fairford, England FAAM BAe146 (G-LUXE) takeoff RIAT 14thJuly2014 arp.jpg
FAAM BAe146-300 takes off at RIAT, RAF Fairford, England

The Facility for Airborne Atmospheric Measurements (FAAM), part of the National Centre for Atmospheric Science, is based at Cranfield Airport. It is a collaboration with the Natural Environment Research Council. [34]

The FAAM was established as part of the National Centre for Atmospheric Science (NCAS), [36] itself part of NERC, to provide aircraft measurement for use by UK atmospheric research organisations on worldwide campaigns. The main equipment is a modified BAe 146 type 301 aircraft, registration G-LUXE, owned and operated by BAE Systems on behalf of Directflight Limited. [37]

Areas of application include: [38]

Directors General and Chief Executives

See also

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References

  1. ↑ "Met Office annual report and accounts 2021 to 2022". gov.uk.
  2. ↑ "Meteorological Office Archive" . Retrieved 5 December 2013. In November 2000 the organisation underwent a corporate rebrand and officially changed its name to simply the "Met Office".
  3. 1 2 "Met Office Chief Executive stands down". Gov.uk. Retrieved 5 March 2018.
  4. 1 2 "Professor Penelope Endersby to be new Met Office Chief Executive". Met Office. Archived from the original on 18 October 2018. Retrieved 18 October 2018.
  5. ↑ "Foundations of the Met Office" . Retrieved 1 November 2022.
  6. ↑ Ronalds, B.F. (2016). Sir Francis Ronalds: Father of the Electric Telegraph. London: Imperial College Press. ISBN   978-1-78326-917-4.
  7. ↑ Ronalds, B.F. (June 2016). "Sir Francis Ronalds and the Early Years of the Kew Observatory". Weather. 71 (6): 131–134. Bibcode:2016Wthr...71..131R. doi:10.1002/wea.2739. S2CID   123788388.
  8. ↑ "UK Met Office switches departments in Whitehall shake-up". Clickgreen.org.uk. Archived from the original on 22 July 2011. Retrieved 18 July 2011.
  9. ↑ "Machinery of Government Changes:Written statement - HCWS94". Hansard. 18 July 2016. Retrieved 22 July 2016.
  10. ↑ "Met Office defence: Supporting operations". Webarchive.nationalarchives.gov.uk. 13 May 2014. Archived from the original on 5 July 2007. Retrieved 30 June 2014.
  11. ↑ "Met Office warning colours". Metoffice.gov.uk. 19 November 2008. Retrieved 15 May 2010.
  12. ↑ Ahlstrom, Dick (15 January 2015). "Storm-naming system yet to be put in place as Rachel peters out". Irish Times. Retrieved 17 January 2015.
  13. ↑ "Met Éireann plans to start naming storms from next year". The Journal. 21 December 2014. Retrieved 17 January 2015.
  14. ↑ "10 November 2015 - The Met Office has named Abigail as the first storm as part of the Name Our Storms project". Met Office.
  15. ↑ "Storm names for 2019-20 announced". Met Office. Retrieved 13 January 2020.
  16. ↑ "Experiences with a 1.5 km version of the Met Office Unified Model for short range forecasting". ametsoc.org. 25 January 2011. Retrieved 23 February 2011.
  17. ↑ "Met Office Atmospheric numerical model configurations". Metoffice.gov.uk. 5 May 2010. Retrieved 15 May 2010.
  18. ↑ "Verification statistics and evaluations of ECMWF forecasts in 2009–2010 – Figures 11–15". European Centre for Medium-range Weather Forecasts ecmwf.int. October 2010. Retrieved 10 February 2011.
  19. ↑ "Flood Forecasting Centre moves to Exeter". Exeter Science. Retrieved 4 June 2011.
  20. ↑ "Scottish Flood Forecasting Service". Sepa.org.uk. Archived from the original on 26 March 2015. Retrieved 4 June 2011.
  21. ↑ "Long-range global and regional forecasts". Met Office. Retrieved 21 July 2017.
  22. ↑ "World Meteorological Organisation GPC outlooks".
  23. ↑ Scaife, A. A.; Arribas, A.; Blockley, E.; Brookshaw, A.; Clark, R. T.; Dunstone, N.; Eade, R.; Fereday, D.; Folland, C. K.; Gordon, M.; Hermanson, L.; Knight, J. R.; Lea, D. J.; MacLachlan, C.; Maidens, A.; Martin, M.; Peterson, A. K.; Smith, D.; Vellinga, M.; Wallace, E.; Waters, J.; Williams, A. (2014). "Seasonal Predictions of the North Atlantic Oscillation" (PDF). Geophysical Research Letters. 41 (7): 2514–2519. Bibcode:2014GeoRL..41.2514S. doi:10.1002/2014GL059637. hdl: 10871/34601 . S2CID   127165980.
  24. ↑ Knapton, Sarah (17 October 2016). "The Met Office can now predict winter weather one year in advance" . The Telegraph. Archived from the original on 12 January 2022.
  25. ↑ "Met Office loses BBC weather contract". 23 August 2015. Retrieved 7 June 2019.
  26. ↑ "London VAAC". Metoffice.gov.uk. 19 November 2008. Archived from the original on 8 January 2007. Retrieved 15 May 2010.
  27. ↑ "International Airways Volcano Watch". Icao.int. 26 March 2010. Retrieved 15 May 2010.
  28. ↑ Overview of VAAC Activities presentation [ dead link ]
  29. ↑ Pearce, Fred, The Climate Files: The Battle for the Truth about Global Warming, (2010) Guardian Books, ISBN   978-0-85265-229-9, p. XVI.
  30. ↑ Mark Twain, Kevin McCurley. "United Kingdom Meteorological Office | TOP500 Supercomputing Sites". Top500.org.
  31. ↑ "Met Office wins top Customer Service Awards | Met Office". www.wired-gov.net. Retrieved 16 November 2021.
  32. ↑ "Met Office Scoops Top Customer Service Awards". iGov News. Retrieved 27 September 2016.
  33. ↑ "Prestatyn Weather website". Prestatynweather.co.uk. Retrieved 15 May 2010.
  34. 1 2 "MET Office Research facilities (website accessed: 12/08/10)". Webarchive.nationalarchives.gov.uk. Archived from the original on 24 February 2009. Retrieved 30 June 2014.
  35. ↑ "Met Office – Boundary layer (accessed: 12/08/10)". Webarchive.nationalarchives.gov.uk. Archived from the original on 18 June 2010. Retrieved 30 June 2014.
  36. ↑ National Centre for Atmospheric Science Archived 15 February 2012 at the Wayback Machine
  37. ↑ "Directflight Limited official website". Directflight.co.uk. 1 April 2014. Archived from the original on 4 March 2000. Retrieved 30 June 2014.
  38. ↑ FAAM web reports page Archived 9 October 2006 at the Wayback Machine
  39. ↑ Henderson, Caspar (15 May 2006). "Reason and Light". New Statesman . Archived from the original on 9 December 2006. Retrieved 22 April 2008.

50°43′38″N3°28′30″W / 50.72722°N 3.47500°W / 50.72722; -3.47500

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