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Sydney Observatory

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A weather station is a facility, either on land or sea, with instruments and equipment for measuring atmospheric conditions to provide information for weather forecasts and to study the weather and climate . The measurements taken include temperature , atmospheric pressure , humidity , wind speed , wind direction , and precipitation amounts. Wind measurements are taken with as few other obstructions as possible, while temperature and humidity measurements are kept free from direct solar radiation, or insolation . Manual observations are taken at least once daily, while automated measurements are taken at least once an hour. Weather conditions out at sea are taken by ships and buoys, which measure slightly different meteorological quantities such as sea surface temperature (SST), wave height, and wave period. Drifting weather buoys outnumber their moored versions by a significant amount.

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124-547: The Sydney Observatory is a heritage-listed meteorological station , astronomical observatory , function venue, science museum , and education facility located on Observatory Hill at Upper Fort Street, in the inner city Sydney suburb of Millers Point in the City of Sydney local government area of New South Wales , Australia. It was designed by William Weaver (plans) and Alexander Dawson (supervision) and built from 1857 to 1859 by Charles Bingemann & Ebenezer Dewar. It

248-487: A 35-year tenure as Government Astronomer and made him the Grand Old Man of physical science in the colonies. It was during Russell's period that Sydney Observatory was popularly believed to have been at its professional zenith, particularly from the 1870s through to the 1890s. Russell wasted no time in pressing the government for the necessary physical and instrumental resources to carry out his astronomical programs at

372-524: A Museum of Astronomy. While the importance of the exterior was recognised, the interior was less fortunate. Work inside the building in the creation of the museum involved the staged removal of almost all instruments, equipment, and furniture and furnishings to the Museum's store. The astrographic building was demolished and the dome, instruments and most of the glass plate and paper collection was removed to Macquarie University for future research use. In 1997

496-555: A commission appointed by Governor Fitzroy at the prompting of London. Dunlop had become increasingly frail and negligent and the Parramatta observatory had fallen into decay. The instruments were placed in ordnance storage at the urge of Phillip Parker King , a leading astronomer in Australia. King argued that a government observatory should be set up, and not just the suggested time ball. King's preference for Fort Phillip to be

620-556: A commission to design buildings for the University of Sydney. William Weaver was appointed by Governor Sir William Denison (1855–1861), having left England in 1850, he commended duties in 1851 as Senior Foreman of Works under Blacket, and succeeded Blacket as Colonial Architect in 1854. Weaver submitted a design for the Government Printing Office in 1855 before being called to report to a Select Committee of

744-571: A continuing resource for investigation and public interpretation. [REDACTED] This Misplaced Pages article contains material from Sydney Observatory , entry number 1449 in the New South Wales State Heritage Register published by the State of New South Wales (Department of Planning and Environment) 2018 under CC-BY 4.0 licence , accessed on 13 October 2018. Meteorological station A weather instrument

868-428: A continuing resource for investigation and public interpretation. The place has an association with an extensive array of historical figures most of whom have helped shape its fabric. These include: colonial Governors Hunter, Bligh, Macquarie & Denison; military officers and engineers Macarthur; Barrallier; Bellasis and Minchin; convicts: the as yet unnamed constructors of the mill and fort; architects: Greenway (also

992-543: A convict), Lewis, Blacket, Weaver, Dawson and Barnet; signallers and telegraphists such as Jones and the family Moffitt; astronomers: particularly PP King, Scott, Smalley, Russell, Cooke and Wood. The elevation of the site, with its harbour and city views and vistas framed by mature Moreton Bay fig ( Ficus macrophylla ) trees of the surrounding park, make it one of the most pleasant and spectacular locations in Sydney. The picturesque Italianate character and stylistic interest of

1116-408: A full observatory next to the signal station. The first Government Astronomer , William Scott , was appointed in 1856, and work on the new observatory was completed in 1858. The most important role of the observatory was to provide time through the time-ball tower . Every day at exactly 1.00 pm, the time-ball on top of the tower would drop to signal the correct time to the city and harbour below. At

1240-494: A function for the Commonwealth Government from 1908, while the observatory continued its astronomical role. The observatory continued to contribute observations to The astrographic catalogue , kept time and provided information to the public. For example, each day the observatory supplied Sydney newspapers with the rising and setting times of the sun, moon and planets. A proposal to close the observatory in 1926

1364-408: A library and an astronomer's residence. It is now a public observatory and a museum of astronomy and meteorology. The building is of Florentine Renaissance style and the storeys are divided by string courses while articulated quoins at corners, stone bracketed eaves and entablatures to openings of the residence contribute to the fine stone masonry work. A single storey wing to the north has had

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1488-550: A network of buoys in the central and eastern tropical Pacific Ocean helped study the El Niño-Southern Oscillation . Moored weather buoys range from 1.5–12 metres (5–40 ft) in diameter, while drifting buoys are smaller, with diameters of 30–40 centimetres (12–16 in). Drifting buoys are the dominant form of weather buoy in sheer number, with 1250 located worldwide. Wind data from buoys has smaller error than that from ships. There are differences in

1612-528: A new Schroeder telescope. The telescope remains a prized and functional possession today. Russell also turned his attention to improving the residence, claiming it was not large enough to accommodate his family. In 1875 Russell succeeded in securing an extension of the observatory enclosure. Like his predecessors, he had been concerned with the restrictive nature of the observatory grounds which made siting of meteorological and auxiliary astronomical instruments difficult, if not impossible. This extension, together with

1736-725: A number of major public buildings, such as the Mitchell wing at the State Library , the Art Gallery of New South Wales , Fisher Library at the University of Sydney and Central railway station, Sydney . These buildings maintained the classical tradition. Vernon also added to a number of the buildings designed by his predecessors including Customs House, the GPO and the Chief Secretaries building. The office under Vernon

1860-407: A number of name changes. It was known as Windmill Hill in the 1790s when it was the site of the first windmill. After 1804 references are made to it as Fort Phillip or Citadel Hill, referring to the construction, but never completion, of a citadel on the site at Governor King 's instruction for use in the case of an insurrection in Sydney. This was prompted by an influx of "Death or Liberty" Boys after

1984-586: A number of years as the responsibility for school design changed between departments. Wells designed the conversion of the Old Stables to the new Sydney Conservatorium of Music in 1913, as directed by the Minister for Public Instruction. During Wells' term as Government architect, he supervised work on the Dixson Wing of the State Library of New South Wales , The Travers Building at Sydney Hospital ,

2108-506: A personal computer, and internet connection (or amateur radio) and are utilized by groups such as the National Weather Service (NWS) when generating forecast models . Each weather station submitting data to CWOP will also have an individual Web page that depicts the data submitted by that station. The Weather Underground Internet site is another popular destination for the submittal and sharing of data with others around

2232-588: A plan for an observatory and two personal employees with astronomical expertise - Carl Rümker and James Dunlop. Brisbane set up an observatory at the Governor 's residence in Parramatta . Problems developed between Brisbane and Rümker. Rümker lost his position and it was not until Brisbane had been recalled that Rümker was reinstated by the Colonial Secretary. The following year Governor Darling ,

2356-658: A position he held until 1897 when he was appointed Principal Assistant Architect to Vernon in the Government Architect's Branch. He succeeded Vernon as Government Architect in 1911 and held the office until his death in 1923. Works undertaken by McRae during his term as Government Architect include: the Education Dept Building, Bridge Street (1912); Parcels Post Office, Railway Square (1913); Taronga Zoo lower entrance, top entrance, and Indian elephant house; Corporation Building, Hay Street, which

2480-544: A single large intimidating budget. Lewis produced courthouses at Goulburn , Bathurst , Berrima , and Hartley , and gaols at Berrima , Maitland , Bathurst and Goulburn . Most of these buildings were later replaced. Under Lewis, the Colonial Architect's Department of Victoria was established at what was at first the new settlement at Port Phillip . The beginnings of the Colonial Architect's Department of Queensland also occurred under Lewis. In 1843 there

2604-452: A timber balcony verandah with a stone balustrade built above. Windows are of twelve pane type and the doors are six panels. The physical condition is good. As at 20 October 2005, the observatory is of exceptional significance in terms of European culture. Its dominant location beside and above the port town and, later, City of Sydney made it the site for a range of changing uses, all of which were important to, and reflected, stages in

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2728-460: A year later the new Colonial Architect Alexander Dawson adopted those plans. Little more was done until the arrival of Sir William Denison as Governor General in January 1855. Denison saw an observatory as an important addition to the colony. As a result, the £ 600 allocated to the time ball and building was augmented by an additional vote of £ 7,000 for a complete observatory and Denison wrote to

2852-486: Is a sandstone two-storey building in the Italianate style. There are two telescope domes on octagonal bases and a four-storey tower for the time-ball. The 1858 building designed by the Colonial Architect, Alexander Dawson , comprised a dome to house the equatorial telescope , a room with long, narrow windows for the transit telescope , an office for calculations, and a residence for the astronomer . A western wing

2976-437: Is also known as The Sydney Observatory ; Observatory ; Fort Phillip ; Windmill Hill ; and Flagstaff Hill . It was added to the New South Wales State Heritage Register on 22 December 2000. The site was formerly a defence fort, semaphore station , time ball station , meteorological station , observatory and windmills . The site evolved from a fort built on 'Windmill Hill' in the early 19th century to an observatory within

3100-610: Is any device that measures weather related conditions. Since there are a variety of different weather conditions, there are a variety of different weather instruments. Typical weather stations have the following instruments: In addition, at certain automated airport weather stations , additional instruments may be employed, including: More sophisticated stations may also measure the ultraviolet index , leaf wetness , soil moisture , soil temperature, water temperature in ponds, lakes, creeks, or rivers, and occasionally other data. Except for those instruments requiring direct exposure to

3224-503: Is important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in New South Wales. The elevation of the site with its harbour and city views and vistas framed by the mature fig trees of the surrounding park, make it one of the most pleasant and spectacular locations. The picturesque Italianate character and stylistic interest of the observatory and residence building, together with

3348-574: Is important in demonstrating the course, or pattern, of cultural or natural history in New South Wales. The observatory's dominant location beside and above the port town, and later, city of Sydney, made it the site for a range of changing uses. All of these were important to, and reflected changes in the development of the colony. The place has an association with an extensive array of historical figures, most of whom have helped shape its fabric. These include colonial governors, military officers and engineers, convicts, architects and astronomers. The place

3472-810: Is on the Register of the National Estate; additions to the Colonial Treasury Building in Bridge Street ; Queen Victoria Building , George Street, also on the Register of the National Estate; and Cessnock Court House. From 1912 until 1937 the Government Architect's Branch was housed in the "Tin Shed", a temporary building on the site of the first Government House and demolished in 1970. Blair, born 1862 in Scotland, entered

3596-787: Is required for weather forecasting. A personal weather station is a set of weather measuring instruments operated by a private individual, club, association, or business (where obtaining and distributing weather data is not a part of the entity's business operation). Personal weather stations have become more advanced and can include many different sensors to measure weather conditions. These sensors can vary between models but most measure wind speed, wind direction, outdoor and indoor temperatures, outdoor and indoor humidity, barometric pressure, rainfall, and UV or solar radiation. Other available sensors can measure soil moisture, soil temperature, and leaf wetness. The quality, number of instruments, and placement of personal weather stations can vary widely, making

3720-477: The Colonial Architect , knew how it worked. The need for an Observer's dwelling was noted. Plans were redrawn in the next couple of years. When Blacket resigned in 1854 to take on the design and supervision of construction of The University of Sydney , plans were underway for an observatory that would be both functional and of architectural quality. Blacket's successor, William Weaver, replaced him on

3844-618: The Gladesville Mental Hospital , Customs House , the new Treasury building, the Post Office and numerous other buildings. He also included civic works at Circular Quay and at Newcastle and King's School, Parramatta . His resignation resulted from an enquiry into the building of the Australian Museum . If Hallen had not resigned, it was quite probable he would have been dismissed also. Blacket

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3968-598: The Government of New South Wales , serves as the General Manager of the Government Architect's Office (GAO), a multi-disciplinary consultancy operating on commercial principles providing architecture, design, and engineering services, that is an agency of the government within NSW Public Works . Historically, the government architect was in charge of the government's public building projects across

4092-837: The Macquarie Lighthouse on South Head , the Fort on Bennelong Point and the Stables for Government House. Greenway's other major buildings include the Obelisk in Macquarie Place, the Church of St James , St Mathews Church at Windsor and the Hyde Park Barracks . Leaders of the free settler community in New South Wales, such as Wentworth and Macarthur, complained to London about Macquarie's policies, and in 1819

4216-574: The NSW Parliament and associated Public Service remained forgettable. Wood's annual reports failed to help this. They did not communicate any sense of excitement and worth in the observatory. The disestablishment of the observatory echoed that of fifty years earlier when Cooke stressed the need for a new location. The Chairman of the Board of Visitors wrote a letter to the Premier in 1979 urging

4340-642: The Astronomer Royal asking him to find a competent astronomer. Plans and estimates were submitted in August 1855 but Denison decided to defer the final decision on the site and design until the arrival of the astronomer. Alexander Dawson replaced Weaver as Colonial Architect in April 1856 and the new Government Astronomer, Reverend William Scott, M.A., arrived with his family in October that year. Tenders for

4464-581: The Colonial Architect from the Colony's own resources and that this would give greater respect for the buildings, stating: "The attention of the Colonists will be called to them, an interest acquired in their preservation, which does not seem to attach to those works, which are defrayed at the cost of the British Treasury alone." At the same time, responsibility for civil and military buildings

4588-583: The Colonial Architect's Department reported to the Secretary of Lands and Public Works and from 1860, with the separation of Public Works from Lands, under the Secretary for Public Works. Buildings undertaken by Dawson as Colonial Architect include Sydney Observatory and Sydney Registry Office and at least two lighthouses, Point Stephens Light and the Hornby Lighthouse . Dawson was suspended for 3 months in 1859 for being absent from duty, and

4712-665: The Colonial Architect's office produced over 1,350 works. He listed on his retirement 169 Post and Telegraph offices, 130 Courthouses, 155 Police Stations, 110 lock ups and 20 lighthouses. One of Barnet's most impressive achievements was the Garden Palace , opened in 1879 as the venue for the International Exhibition of that year. The building was destroyed by fire in 1882. During his time as Colonial Architect there were 20 separate Parliaments, 16 Ministers and nine different Premiers. He made more visible impact on

4836-657: The Colonial Architect's role and department, Governor Bourke defied directions from the Colonial Office in Whitehall, London, which had specified there was to be no such office as an entity separate from that of the Surveyor General. The new department only had 10 officers and was operating under tighter management following the review of the Department of Public Works. Hallen was not found to providing

4960-509: The Department of Public Works ceased to function on the date of those dismissals, 13 March 1832. Bourke established the Colonial Architect's Department in 1832 to be responsible for the planning and supervision of the construction and repair of public buildings. In general, the Colonial Architect's Department had charge of public buildings and their furniture, the duty of preparing plans and specifications for construction and repair and superintending all works executed by contract. From 1833 to 1835

5084-568: The Department of Public Works, Hallen took on the role of Architect and Town Surveyor under Charles Wilson, the Director of Public Works; under Wilson's directorship, Hallen having become increasingly engaged in minor architectural matters. When Governor Burke succeeded Governor Darling in December 1831, he initiated an enquiry into the Department of Public Works. Wilson and six of those who were immediately under him were dismissed in 1832. Hallen

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5208-709: The Department, was accused of negligence for paying him and subsequently submitted his resignation in apparent disgust. Weaver was only 18 months as Colonial Architect and of the two major architectural works to come from his Department during his term in office, the Government Printing Office at the corner of Phillip and Bent Streets no longer stands and the Sydney Observatory has been generally attributed to his successor. In fact, Sir William Denison approved Weaver's plans "for an Observatory and Astronomical resicence" in August 1855 after some specifications supplied by Denison had been incorporated. When building commenced

5332-464: The European settlement of New South Wales , Australia, a windmill was built on the hill above the first settlement. Within ten years the windmill had deteriorated to the point of being useless; the canvas sails were stolen, a storm damaged the machinery, and already by 1800 the foundations were giving way. The name of Millers Point remembers this early land use. In 1803, Fort Philip was built on

5456-471: The Government Architect's Branch in 1895 as an architectural draughtsman. By 1912 he had become First Class Assistant Architect in charge of the drawing office, and by 1916 Principal Designing Architect. Blair was appointed Acting Government Architect on McRae's death in 1923 and promoted to Government Architect in 1926. Blair was responsible for the design of several war memorials, additions to Katoomba Court House and Wards 24 and 25 at Callan Park Hospital for

5580-590: The Government Astronomer Harley Wood kept a close involvement as the first president of the Astronomical Society of Australia (ASA) in 1966 and as the co-ordinator of the first International Astronomical Union (IAU) General Assembly to be held in the southern hemisphere in Sydney, 1973. Without major capital funds to develop its own specialisations in the west, Sydney remained tied to its traditional role. Despite this there

5704-552: The Governor's displeasure in 1856. Alexander Dawson, previously Clerk of Works in Hobart town under the Governor of Tasmania , Sir William Denison, was invited by Denison, on his appointment as Governor of New South Wales (1855–1861), to serve as Colonial Architect. His commission was later renewed by Governor John Young (1861–1867). As a result of the formation of the first responsible government in New South Wales , from 1856

5828-472: The Governor. Harris criticised his predecessor's works. Governor Brisbane found Harris's fees to be excessive. The Civil Architect reported to the Chief Engineer, Major John Ovens . Ovens had stated that Harris' services "can no longer be useful to me" and Harris was dismissed in October 1824. Other than his report on the colony's public buildings, Harris's possible contribution was the completion of

5952-470: The Insane . Richard McDonald Seymour Wells was born in Australia in 1865, and his promotion to Government Architect in 1927 made him the first Australian born architect to hold that post. Wells first joined William Kemp's office in the Department of Public Instruction in 1881, working on the design of schools. He transferred between the Department of Public Instruction and the Government Architect's Branch for

6076-597: The Legislative Council commissioned to inquire into the state of the Colonial architect's Department. Despite Weaver's protestations about a lack of resources impeding progress, the Committee reported: "The Department of the Colonial Architect as now constituted, is not capable of dealing properly with the amount of work which the charge of public buildings alone would entail in it". Weaver resigned under

6200-681: The Nurses' Home at Maitland Hospital and many additions to public schools. Wells retired as Government Architect in 1929. Edwin Smith, born in 1870 in Scotland, arrived in Australia in 1889, and worked as a draughtsman in the Queensland Department of Public Works and as Chief Architect in the Victorian Department of Public Works before being appointed Government Architect of New South Wales in 1929. Smith reorganised

6324-691: The State of NSW at that time resulted in a letter from the Premier in June 1982 announcing his decision to transfer the observatory to the Museum of Applied Arts and Sciences and discontinue scientific work. Despite letters from international astronomers, and a concerted effort from now-retired Harley Wood, the Government did not rescind its decision. In July 1984 the Minister for Public Works , Ports and Roads announced an $ 800,000 project to restore Sydney Observatory for astronomy education, public observatory and

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6448-586: The abortive 1798 uprising in Ireland, some of whom he believed to be of the most desperate character and cause for constant suspicion. Construction began but the citadel was not completed until Bligh had been installed in office. There were further discussions about a citadel during the Macquarie period but nothing eventuated beyond a half-built powder magazine, Francis Greenway 's first work after his appointment as civil architect in 1815. In 1797, early on during

6572-462: The addition of a telescope dome and an increase in the height of the time ball tower. This increased height caused some dismay for Scott as it blocked out an increased area of the eastern sky. The completed building combined, for the first time in a major Sydney building, two architectural streams - Italian High Renaissance Palazzo and the Italian Villa forms. These contributed the symmetry of

6696-417: The adjacent signal station give the site its present symmetrical perimeter. The Astrographic Catalogue was Russell's greatest commitment and would affect programs at the observatory for 80 years. His interest in the application of photography to astronomy and a visit to Paris in 1887 prompted Russell to take part in a "great star catalogue". The Sydney Zone of the catalogue was a massive logistical enterprise and

6820-427: The astrographic program became something of an incubus as the twentieth century progressed. The Government Astronomers could not suspend or abort the program even if they had thought it desirable. At the same time the fulfilment of international obligations under the program was largely instrumental in the survival of the observatory. The completion of the program in 1964 and publication of the final volume in 1971 meant

6944-460: The base of a room which was once a bombproof inside the fort wall foundations. In 2009 permission was granted for a temporary marquee to be erected for a restricted period of time in order to raise funds. Furthermore, the Astrographic dome and instruments have been returned by Macquarie University to the Museum store where they are awaiting conservation and a Heritage NSW approved structure on

7068-512: The colony than any other public servant of his time. Barnet resigned as Colonial Architect on 30 June 1890. Shortly afterwards the Colonial Architect's Department was abolished. Vernon was born in 1846 at High Wycombe in England, and worked in private practice in Sydney before joining the newly named Government Architect's Branch in 1890 as Branch Head. Funds and staff were depleted for the first years of Vernon's term, until 1894, in response to

7192-466: The construction were advertised in February 1857. The successful tenderers were Charles Bingemenn and Ebenezer Dewar. The plans used appear to have been the work of Dawson rather than those of his predecessors, there being numerous references by Scott to consultations with the Colonial Architect on the design of the building. Extra work was approved after Bingemann and Dewar won their tender. This included

7316-520: The delays in corresponding between New South Wales and England by ship. One of Lewis's earliest works was the Darlinghurst Courthouse . It was significant as a building as it was deliberately built in the popular Greek style fashionable in England to convey a sense of the importance of purpose of the court house. He also managed the project in a more politically astute way by getting the government to approve sequential work rather than

7440-500: The department briefly became the Architectural Branch of the Department of the Surveyor General before the Colonial Architect's Department was again separately established. To replace Greenway, Brisbane appointed Standish Lawrence Harris, a recently arrived free settler as Civil Architect in late 1822. Harris' main achievement seems to be in preparing a report on the condition of the Colony's public buildings requested by

7564-544: The depression, the Government voted 136,635 pounds for the new building works. Under Vernon's directorship the Arts and Craft style came to be used increasingly for public buildings. Notable examples include the fire stations at Darlinghurst and Pyrmont , as well as Post Offices and country Courthouses. Using the Arts and Crafts style meant these buildings were less monumental than those built by Barnet. However, Vernon also built

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7688-593: The determination of which stations collect accurate, meaningful, and comparable data difficult. There are a comprehensive number of retail weather stations available. Personal weather stations typically involve a digital console that provides readouts of the data being collected. These consoles may interface to a personal computer where data can be displayed, stored, and uploaded to websites or data ingestion/distribution systems. Open-source weather stations are available that are designed to be fully customizable by users. Personal weather stations may be operated solely for

7812-453: The development of the colony. These uses included: milling (the first windmill); defence (the first, and still extant, fort fabric); communications (the flagstaffs, first semaphore and first electric telegraph connection); astronomy, meteorology and time keeping. The surviving structures, both above and below ground, are themselves physical documentary evidence of 195 years' changes of use, technical development and ways of living. As such they are

7936-444: The elements (anemometer, rain gauge), the instruments should be sheltered in a vented box, usually a Stevenson screen , to keep direct sunlight off the thermometer and wind off the hygrometer. The instrumentation may be specialized to allow for periodic recording, otherwise significant manual labour is required for record keeping. Automatic transmission of data, in a format such as METAR , is also desirable as many weather station's data

8060-506: The end of 1834. Mortimer Lewis was appointed by Governor Bourke whose term was completed in 1837. He served also under Governor Sir George Gipps (1838–1846) and Governor Sir Charles Augustus FitzRoy (1846–1855). In the mid-1830s there was seen to be an increasing need for new buildings relating to policing, including gaols, courthouses and lock-ups. Bourke negotiated with the Colonial Office in London that these buildings should be built by

8184-467: The enjoyment and education of the owner, while some owners share their results with others. They do this by manually compiling data and distributing it, distributing data over the Internet, or sharing data via amateur radio . The Citizen Weather Observer Program (CWOP) is a service which facilitates the sharing of information from personal weather stations. This data is submitted through use of software,

8308-479: The establishment of a remote observing site for the observatory and stressing the difficulty of the conditions at the existing site. This coincided with a nationwide review of astronomy facilities commissioned by the ASA and led by Monash University Professor of Astronomy Kevin Westfold (1980) This concluded that astronomy was a federal responsibility and that resources should be allocated to research operations, highlighting radio astronomy. The financial difficulties of

8432-402: The first quarter of the twentieth century. While Russell had managed to have the astrographic telescope relocated to Pennant Hills , there was general worry over the reaction to the cost of relocation of the whole observatory. In July 1925 Cooke wrote to his minister pointing out the problems at the site and with the equipment. The State Cabinet took him at his word and in October decided to close

8556-407: The following 100 years. It is now a working museum where evening visitors can observe the stars and planets through a modern 40-centimetre (16 in) Schmidt-Cassegrain telescope and an historic 29-centimetre (11 in) refractor telescope built in 1874, the oldest telescope in Australia in regular use. The site of the Sydney Observatory has been a significant place in Sydney and has undergone

8680-412: The foot of Observatory Hill, in an ultimately unsuccessful attempt to observe in 1790 the return of a comet suggested by Edmond Halley (not Halley's Comet but a different one). In 1848, a new signal station was built by the Colonial Architect , Mortimer Lewis , on top of the fort wall on Windmill Hill. At the instigation of the Governor, Sir William Denison , it was agreed seven years later to build

8804-428: The government appointed an English judge, John Bigge , to visit New South Wales and report on its administration. Bigge generally agreed with the settlers' criticisms, and elements of his reports criticised Governor Macquarie's administration including his excessive spending on public works. Bigge's reports on the colony led to Macquarie's resignation in 1821. When Macquarie returned to England in February 1822, Greenway

8928-490: The high level of competence of the masonry (both stone and brick) of all major structures on the site, combine to create a precinct of unusual quality. The place has potential to yield information that will contribute to an understanding of the cultural or natural history of New South Wales. The surviving structures, both above and below ground, are themselves physical documentary evidence of 195 years of changes of use, technical development and ways of living. As such they are

9052-418: The nature and status of the building and in some cases, the site. Scott occupied the residence in 1858 and commenced a trial operation of the time ball in June. His initial equipment was modest, mostly the instruments from Parramatta. He did, however, obtain the money for an equatorial telescope. In 1862 Scott resigned, recommending prominent amateur astronomer John Tebbutt as his replacement. Tebbutt declined

9176-474: The necessary leadership and the office became part of the Surveyor-General's office under Thomas Mitchell . Buildings include St Brigid's school at Millers Point . Hallen designed the gaol at Berrima . It was based on the radiating system of inspection. He also designed a courthouse at Berrima. However, the cost of building would have significantly exceeded the funds allocated. Hallen resigned at

9300-549: The new Courthouse at Sydney begun by Greenway. Harris made enlargements and prepared drawings and specifications, but there is some doubt as to whether even his design was that ultimately adopted. Harris made recommendations about the organisation of the Office for Public Works and the role of the Civil Architect, which were adopted. George Cookney was an English architect, the son of D'arcy Wentworth's London agent. Cookney

9424-403: The new Governor, appointed Rümker as Government Astronomer, the first to hold the title in Australia. In 1831 Dunlop was appointed Superintendent at the observatory, Rümker again losing his position while on a visit to London. Brisbane's instruments remained at Parramatta when he left and they were used in that observatory until it was closed in 1847. The recommendation for the closure came from

9548-522: The northern Pacific Ocean . The agreement of the weather ships ended in 1990. Weather ship observations proved to be helpful in wind and wave studies, as they did not avoid weather systems like merchant ships tended to and were considered a valuable resource. The last weather ship was MS  Polarfront , known as weather station M ("jilindras") at 66°N, 02°E, run by the Norwegian Meteorological Institute . MS Polarfront

9672-478: The number of reports, and the examination of accounts, absorb nearly the whole time of the head of department, who practically can have little or no professional oversight of any work". A Select Committee on the Colonial Architect's Department in August 1855 questioned an overpayment to the stonemasonry contractor of the Dead House at Circular Quay and accused him of defrauding the Government. Weaver, as head of

9796-421: The observatory and residence building, together with the high level of competence of the masonry (brick and stone) of all major structures on the site, combine to create a precinct of unusual quality; Finally, the continued use of the observatory for astronomical observations and the survival of astronomical instruments, equipment (Appendix 4) and some early furniture (Appendix 3), although temporarily dispersed, and

9920-400: The observatory project. Weaver was appointed Colonial Architect in October 1854. Correspondence from him to Blacket in the early years indicates that Weaver was much happier in direct supervision of works than performing the duties of his desk-bound role. As head of an over-loaded department, he complained: "The arrangements for the performance of the various works, the official correspondence,

10044-515: The observatory provided information about these events to many more people either directly or through the media. In 2008, for the 150th anniversary, the Signal Station building was stabilised, one of the original two flagstaffs re-constructed and an archaeological investigation commenced around the base of the fort led by NSW Government Architects, building design and Heritage office and Casey and Lowe. Original fort footings were uncovered and

10168-663: The observatory rather than face the cost of removal and re-equipment. However, protests from the Board of Visitors, the Royal Society of NSW, the NSW Branch of the British Astronomical Association, the University of Sydney and interested members of the public caused the Government to change its mind and allow the observatory to continue - but with a heavily reduced staff and program. Most of the staff were transferred to other departments and Cooke

10292-667: The observatory site. The most significant change to Sydney Observatory in 50 years, the new Eastern Dome was opened on 27 January 2015, by the Deputy Premier Troy Grant and Minister for Disability Services, John Ajaka . Located at the Sydney Observatory is a vintage 7.25-inch refracting telescope on an Equatorial mount that was manufactured by the German company Georg Merz and Sons between 1860 and 1861. The 7.25-inch Merz refracting telescope arrived at Sydney Observatory, Sydney, Australia, in 1861. The observatory

10416-582: The observatory was refurbished, this time instruments were returned to their original locations or showcased. 'The "By the light of the Southern Stars" exhibition theme also included the Parramatta Observatory instruments and Indigenous Astronomy . In 1999 a major stonemasonry repair project on the observatory building commenced. This continued through to 2008. In 2002 the conservation plan was updated by Kerr, this time complimentary on

10540-463: The observatory's days were numbered. Other fundamental reasons also contributed to the notion that the observatory was no longer a viable proposition. The transfer of meteorology to the Commonwealth in 1908 removed the observatory's most high-profile public service, electric telegraphy and radio had reduced and in time eliminated the need for local navigational and time services. Ambient city light

10664-606: The observatory. In 1916 the board of visitors to the observatory was reconstituted. Russell had allowed it to lapse during his term of office and in 1917 the residence was again inhabited by the Astronomer. All government astronomers from Scott to Cooke were worried about increasing levels of city light, vibration from traffic and magnetic disturbance which rendered the Flagstaff Hill site increasingly unsuitable. Recommendations had been made by Smalley in 1864 and others in

10788-405: The observatory. The addition of a west wing designed by colonial architect James Barnett was the main work resulting from this. It provided for a major ground floor room for Russell, a library, a second equatorial dome on a tower at its northern extremity which removed the blind spot imposed by the time ball tower. An enlarged Muntz metal dome was also placed on the old equatorial tower to accommodate

10912-509: The offer and the search for a replacement was commenced. In the meantime, his assistant Henry Chamberlain Russell was left in charge of the observatory. In January 1864 the new appointee George Robarts Smalley arrived and Russell was his second in command. In 1870 Smalley died and was replaced by Russell. Russell's talent, entrepreneurial flair, intimate knowledge of how to work the political and bureaucratic system of NSW and longevity gave him

11036-486: The officer responsible for transit work, became officer in charge for four years, until the appointment of William Ernest Cooke in 1912. Cooke was lured to Sydney from Perth Observatory with promises of a new site located in Wahroongah, then free of city lights and traffic, the purchase of modern instruments and a world trip to investigate the latest developments. None of these eventuated during Cooke's fourteen years at

11160-467: The original Sydney one. A new survey of the southern sky was commenced and by 1982 Wood's successor William Robertson had completed the photography and measurement was underway. Education was another aspect of the observatory's work that Wood developed. Always one of its aims, increasing numbers of visitors, including teaching students, attended the observatory. These activities commanded respect for Sydney Observatory in astronomical circles, but its image in

11284-400: The present time. The structure makes an imposing composition atop the historic hill originally known as Flagstaff Hill and occupies the historic Fort Phillip site (1804–45). Designed by the colonial architect Alexander Dawson and built in 1858. Sydney Observatory was listed on the New South Wales State Heritage Register on 22 December 2000 having satisfied the following criteria. The place

11408-633: The process of reviewing the structure and roles of the Departments that made up the Public Service. Governor Bourke succeeded Darling in 1831. Bourke initiated a major enquiry into the Department of Public Works and suspended its director, Charles Wilson. Bourke had received numerous allegations anonymously against Wilson and the department. Wilson was dismissed and following him, six of the next top officers were also dismissed. In effect,

11532-462: The relocation and interpretation of the instruments. A number of key astronomical events have occurred in recent years, most notable are Halley’s Comet (1986), the impact of Shoemaker Levy on Jupiter (1994), Mars at its closest encounter (2003), transits of Venus (2004, 2012), Comet McNaught (2007), planetary alignments and eclipses. Thousands of people came to the observatory to view these through telescopes and to see relevant exhibitions. Further

11656-463: The retention of most interior spaces, joinery, plasterwork, fireplaces, and supports ensure that the observatory can remain the most intact and longest serving early scientific building in the State. Also of significance for relationship of Commonwealth and State powers. Site of the first intercolonial conference on meteorology and astronomy. An excellent example of a Colonial building erected for scientific purposes and continuing to perform its function at

11780-572: The role previously performed by the Colonial Engineer, that is superintendence of roads, bridges, wharves and quays. From October 1848 military buildings and works were also placed under the charge of the Colonial Architect. Lewis resigned in 1849. Major works that Lewis mentioned in his resignation statement were six gaols, eleven Courthouses, the new Government House, the Tarban Creek Lunatic Asylum, later known as

11904-445: The same time a cannon on Dawes Point was fired; later the cannon was moved to Fort Denison . The first time-ball was dropped at noon on 5 June 1858. Soon after the drop was rescheduled to one o'clock. The time-ball is still dropped daily at 1pm using the original mechanism, but with the aid of an electric motor, not as in the early days when the ball was raised manually. After the federation of Australia in 1901 , meteorology became

12028-534: The site under the direction of Governor Hunter to defend the new settlement against a possible attack by the French and also from rebellious convicts . The fort was never required to be used for any such purposes. In 1825 the eastern wall of the fort was converted to a signal station. Flags were used to send messages to ships in the harbour and to the signal station on the South Head of the harbour . The site

12152-453: The site was eventually accepted. In the eight years from Edmund Blacket 's modest 1850 plan for the time ball observatory until its completion, the plans underwent progressive enlargement. The 1850 plan was a 4-by-4-metre (13 by 14 ft) room for a transit telescope and timekeeping apparatus with a small ante-room. In 1851 an enlarged version was presented to the Colonial Secretary but it had no time ball tower, because neither King or Blacket,

12276-539: The son of the more famous French explorer, Louis Antoine de Bougainville , who visited Sydney in 1825. At de Bougainville's request, Governor Brisbane directed Cookney to design both the monument and a tomb to be erected over the grave of one of La Pérouse's crew who had been buried at Botany Bay. From 1827 Ambrose Hallen had been the Town Surveyor within the Public Works Department. Within

12400-406: The state of New South Wales , Australia. Since the 1990s, when the consultancy service began operating on commercial principles, the Government Architect has reported separately in a second capacity, as an advisor to the government, and serves on various committees and boards in relation to heritage protection, architecture, and design. The first officer in the role, then styled Colonial Architect,

12524-430: The states. Thus, the meteorological section of the observatory became a Commonwealth agency under the direction of a former officer of the observatory, Henry Hunt. Lenehan and Hunt continuously quarrelled and did not develop a good working relationship. In January 1908 Lenehan had a stroke and never returned to work. At the same time the Commonwealth agency was installed in the observatory residence. William Edward Raymond,

12648-494: The townhouse facade for the residence and an asymmetry for the observatory born of the peculiar needs of transit room, equatorial dome and time ball tower. The building was thus elevated from basic necessity to fashionable stylishness. Dawson's budget had enabled him to emphasise the distinction between the private and the public, the domestic and the official. The style and form was overlaid with early Victorian theories of fitness and association, that style should be chosen to indicate

12772-701: The values of sea surface temperature measurements between the two platforms as well, relating to the depth of the measurement and whether or not the water is heated by the ship which measures the quantity. Synoptic weather stations are instruments which collect meteorological information at synoptic time 00h00, 06h00, 12h00, 18h00 ( UTC ) and at intermediate synoptic hours 03h00, 09h00, 15h00, 21h00 (UTC). Every weather station has assigned station unique code by WMO for identification. The common instruments of measure are anemometer, wind vane, pressure sensor, thermometer, hygrometer, and rain gauge. The weather measures are formatted in special format and transmit to WMO to help

12896-405: The weather forecast model. A variety of land-based weather station networks have been set up globally. Some of these are basic to analyzing weather fronts and pressure systems, such as the synoptic observation network, while others are more regional in nature, known as mesonets . New South Wales Government Architect The New South Wales Government Architect , an appointed officer of

13020-401: The world's oceans and lakes. Moored buoys have been in use since 1951, while drifting buoys have been used since the late 1970s. Moored buoys are connected with the seabed using either chains, nylon , or buoyant polypropylene . With the decline of the weather ship , they have taken a more primary role in measuring conditions over the open seas since the 1970s. During the 1980s and 1990s,

13144-399: The world. As with CWOP, each station submitting data to Weather Underground has a unique Web page displaying their submitted data. The UK Met Office 's Weather Observations Website (WOW) also allows such data to be shared and displayed. A weather ship was a ship stationed in the ocean as a platform for surface and upper air meteorological measurements for use in weather forecasting. It

13268-529: Was Francis Greenway , appointed in 1816. Francis Greenway was the first official architect for the Colony of New South Wales in a role that was called Colonial Architect and later NSW Government Architect. He was appointed in 1816 by Governor Macquarie to be Acting Civil Architect and Assistant Engineer responsible to Captain J M Gill, Inspector of Public Works. Greenway was a convict who had been sentenced to transportation for forgery. Greenway's works included

13392-425: Was a significant change in the governance of the colony of New South Wales as the first partially representative Legislative Council was established. The new Council was concerned to minimise expenditure and the appropriation of funds for public works was reduced with a consequent reduction of quality and output of the Colonial Architect's Department. In 1844 the duties of the Colonial Architect were expanded to cover

13516-499: Was added in 1877 with office and library space and a second dome for another telescope. Some of the first astronomical photographs of the southern sky were taken at the observatory, under the direction of Henry Chamberlain Russell . The observatory also took part in the compilation of the first atlas of the whole sky, The astrographic catalogue . The part completed at Sydney took over 70 years, from 1899 to 1971, and filled 53 volumes. The observatory once contained offices, instruments,

13640-508: Was also meant to aid in search and rescue operations and to support transatlantic flights. The establishment of weather ships proved to be so useful during World War II that the International Civil Aviation Organization (ICAO) established a global network of 13 weather ships in 1948. Of the 12 left in operation in 1996, nine were located in the northern Atlantic Ocean while three were located in

13764-663: Was appointed by Governor Sir Charles Augustus FitzRoy (1846–1855), having previously completed a number of ecclesiastical commissions in the Colony, following his arrival from Scotland in 1842. Works by Blacket as Colonial Architect include the design of the Abattoirs (1850), the Water Police Office (1851), and Victoria Bridge in Maitland (1852). Blacket advocated the design of public buildings by competition among private architects. Resigning in 1854, Blacket took up

13888-437: Was known as Flagstaff Hill during and after the Macquarie era. A flagstaff had been erected on the site by 1811. Flag signalling was a cumbersome process and Commissioner Bigge advised Macquarie that it was expedient to erect a semaphore at South Head and Fort Phillip. The flag and semaphore were used for signalling in a variety of combinations. An early observatory was established in 1788 by William Dawes on Dawes Point , at

14012-494: Was made separate. Accordingly, these roles reported direct to the governor. The Surveyor-General, Thomas Mitchell, would have supported the independence of Mortimer Lewis, who he had worked with while Lewis was Town Surveyor, and whom Mitchell had suggested would fill the role better than Hallen had. Mortimer Lewis was appointed Colonial Architect in April 1835. Final approval for the arrangements only came in September 1837, due to

14136-550: Was narrowly avoided, but, by the mid-1970s, the increasing problems of air pollution and city light made work at the observatory more and more difficult. In 1982, the NSW Government decided that Sydney Observatory was to be converted into a museum of astronomy and related fields as part of what is now the Powerhouse Museum . In November 1821 Governor Brisbane arrived with a set of astronomical instruments,

14260-479: Was not practically completed until 1964. Russell died in 1907 after taking leave for an extended period of time due to ill health. His assistant Alfred Lenehan was appointed acting Government Astronomer during this period and later Government Astronomer in 1907. However, in 1906 a premier's conference resolved that the Commonwealth Government would take over meteorological work, leaving astronomy to

14384-525: Was removed from service January 1, 2010. Since the 1960s this role has been largely superseded by satellites , long range aircraft and weather buoys . Weather observations from ships continue from thousands of voluntary merchant vessels in routine commercial operation; the Old Weather crowdsourcing project transcribes naval logs from before the era of dedicated ships. Weather buoys are instruments which collect weather and oceanography data within

14508-404: Was replaced by his Clerk of Works. He resigned on 31 October 1862, and left New South Wales in 1864. Barnet was appointed by Governor John Young (1861–1867). He served under Governors Somerset Lowry-Corry, 4th Earl Belmore (1868–1872), Sir Hercules Robinson (1872–1879), Lord Augustus Loftus (1879–1885), and Charles Wynn-Carington, 3rd Baron Carrington (1885–1890). During Barnet's career,

14632-618: Was responsible for the design and installation of the elaborate decorations and illuminations in the city to celebrate the Federation of the Australian colonies in 1900. Vernon retired from the position of Government Architect on 11 August 1911. George McRae arrived in Sydney in 1884 from Scotland and was appointed Assistant Architect in the City Architect's office. He became City Architect and City Building Surveyor in 1889,

14756-406: Was retired the following year. Only the time ball and completion of the astrographic program survived. This experience inhibited later Government Astronomers in their arguments for a new site. Two World Wars, a great depression and a commitment to a logistically exacting astrographic program helped reduce the vitality of the establishment in the twentieth century. The deployment of major resources to

14880-475: Was some positive activity at the observatory. During the 1950s and 1960s under Wood, the observatory enjoyed a modest renaissance. Staff numbers were built up and new equipment acquired. Both the Sydney and Melbourne sections of the Astrographic catalogue were completed and published. A new domed building was constructed in the south-east corner of the observatory to house the Melbourne star camera that replaced

15004-416: Was sponsored by Wentworth and his son William Charles Wentworth. Governor Brisbane appointed him in April 1825, however, there were not a lot of projects he was asked to look at. The only major work completed by Cookney was a memorial at the Sydney suburb of La Pérouse to Jean-François de la Pérouse , the French explorer who visited Botany Bay in 1788. The memorial was requested by Baron de Bougainville,

15128-422: Was starting to restrict astronomical observation though the place was still suitable for the time-consuming analysis of the observations and other astronomical work together with functions such as a public observatory and a centre for public and media enquiries. Post World War II was an exciting time for Australian astronomical development, particularly in radio astronomy. These developments bypassed Sydney though

15252-518: Was the next most senior officer and was placed in charge of what remained of the department on 1 April 1832; later that month he was given the title of Colonial Architect and his office was officially titled the Colonial Architects Department. The position as Town Surveyor was absorbed into the Surveyor General's Department (the role was filled by Mortimer Lewis who was later to succeed Hallen as Colonial Architect). In creating

15376-429: Was without his patron and on 15 November 1822, the recently appointed Governor Brisbane dismissed him from the office of Civil Architect. Brisbane's two replacement appointees lasted only short terms. Governor Darling arrived in December 1825 and dismissed the incumbent architect, George Cookney, a few months later. Darling left the position of Civil Architect vacant for the term of his governorship while he continued

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