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Climate Of Perth
Perth, the capital city of the state of Western Australia, has a Mediterranean climate (Köppen climate classification ''Csa''), with hot, dry summers and mild, wet winters. February is the hottest month of the year, with an average high of , and July is the coldest month of the year, with an average low of . 77% of rain in Perth falls between May and September. Perth has an average of 8.8 hours of sunshine per day, which equates to around 3,200 hours of annual sunshine, and 138.7 clear days annually, making it the sunniest capital city in Australia. Classifications Seasons Seasons in Perth are officially defined as coinciding with calendar months, so summer starts on 1 December, autumn starts on 1 March, winter starts on 1 June and spring starts on 1 September. However, summer-like weather generally occurs from November to early April, and wintery weather can occur between May and September. Summer Summer is the time of year with the greatest temperature variation for Pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Breeze
A sea breeze or onshore breeze is any wind that blows from a large body of water toward or onto a landmass; it develops due to differences in air pressure created by the differing heat capacities of water and dry land. As such, sea breezes are more localised than prevailing winds. Because land heats up much faster than water under solar radiation, a sea breeze is a common occurrence along coasts after sunrise. By contrast, a land breeze or offshore breeze is the reverse effect: dry land also cools more quickly than water and, after sunset, a sea breeze dissipates and the wind instead flows from the land towards the sea. Sea breezes and land breezes are both important factors in coastal regions' prevailing winds. The term offshore wind may refer to any wind over open water. Wind farms are often situated near a coast to take advantage of the normal daily fluctuations of wind speed resulting from sea or land breezes. While many onshore wind farms and offshore wind farms do not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold Front
A cold front is the leading edge of a cooler mass of air at ground level that replaces a warmer mass of air and lies within a pronounced surface trough of low pressure. It often forms behind an extratropical cyclone (to the west in the Northern Hemisphere, to the east in the Southern), at the leading edge of its cold air advection pattern—known as the cyclone's dry "conveyor belt" flow. Temperature differences across the boundary can exceed from one side to the other. When enough moisture is present, rain can occur along the boundary. If there is significant instability along the boundary, a narrow line of thunderstorms can form along the frontal zone. If instability is weak, a broad shield of rain can move in behind the front, and evaporative cooling of the rain can increase the temperature difference across the front. Cold fronts are stronger in the fall and spring transition seasons and are weakest during the summer. Development of cold fronts A cold front occurs wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perth Airport
Perth Airport is an international, domestic and general aviation airport serving Perth, the capital city of Western Australia. It is the fourth busiest airport in Australia measured by passenger movements and falls within the boundaries of the City of Belmont, City of Kalamunda and the City of Swan. Perth Airport and Jandakot Airport, the other civilian airport within the mainland Perth metropolitan area located about south-southwest of the general aviation area of the airport, recorded a combined total of 362,782 aircraft movements in 2017. Since 1997, it has been operated by Perth Airport Pty Ltd under a 99-year lease from the Commonwealth Government. Location The airport is located approximately east of the Perth central business district. It is one of three civilian airports within the Perth metropolitan area, the others being Jandakot Airport and Rottnest Island Airport. Besides the civilian airports, there are also two military airports within the Perth metropolit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perth Metropolitan Region
The Perth metropolitan region or the Perth metropolitan area is the administrative area and geographical extent of the Western Australian capital city of Perth and its conurbation. It generally includes the coastal strip from Two Rocks in the north to Singleton in the south, and inland to The Lakes in the east, but its extent can be defined in a number of ways: *The metropolitan region is defined by the ''Planning and Development Act 2005'' to include 30 local government areas with the outer extent being the City of Wanneroo and the City of Swan to the north, the Shire of Mundaring, City of Kalamunda, and the City of Armadale to the east, the Shire of Serpentine-Jarrahdale to the southeast and the City of Rockingham to the southwest, and including the islands of Rottnest Island and Garden Island off the west coast. This extent correlates with the Metropolitan Region Scheme. *The Australian Bureau of Statistics' Perth (Major Statistical Division) accords with the Metropoli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2014 Perth Hills Bushfire
The 2014 Perth Hills bushfire, sometimes referred to as the Parkerville fire, was a bushfire that burned from 12 January to 1 February and affected the Mundaring municipality of the Perth Hills in the Australian state of Western Australia. During a major run of the fire on the afternoon and evening of 12 January, fifty-seven houses and numerous non-residential buildings were completely destroyed, and a further six houses were damaged in the suburbs of Mount Helena, Stoneville, and Parkerville. Approximately of uncleared land and pasture—the majority on private property—were burned during the 21-day duration of the fire. None of the residential subdivisions impacted had been formally declared as being within a bushfire prone area. The cause of the fire was recorded as accidental by the Department of Fire and Emergency Services (DFES). The source of ignition was determined by both the DFES and Energy Safety to have been a fallen power pole, which ignited extremely dry ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bushfires In Australia
Bushfires in Australia are a widespread and regular occurrence that have contributed significantly to shaping the nature of the continent over millions of years. Eastern Australia is one of the most fire-prone regions of the world, and its predominant eucalyptus forests have evolved to thrive on the phenomenon of bushfire. However, the fires can cause significant property damage and loss of both human and animal life. Bushfires have killed approximately 800 people in Australia since 1851, and billions of animals. The most destructive fires are usually preceded by extreme high temperatures, low relative humidity and strong winds, which combine to create ideal conditions for the rapid spread of fire. Severe fire storms are often named according to the day on which they peaked, including the five most deadly blazes: Black Saturday 2009 in Victoria (173 people killed, 2,000 homes lost); Ash Wednesday 1983 in Victoria and South Australia (75 dead, nearly 1,900 homes); Black Frida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultraviolet Index
The ultraviolet index, or UV index, is an international standard measurement of the strength of the sunburn-producing ultraviolet (UV) radiation at a particular place and time. It is primarily used in daily and hourly forecasts aimed at the general public. The UV index is designed as an open-ended linear scale, directly proportional to the intensity of UV radiation that causes human skin to sunburn. Using the Fitzpatrick scale, a light-skinned individual would experience sunburn in about 30 minutes at UV index 6, without sunscreen. That same individual would experience sunburn in only 15 minutes if the UV index was at 12. The purpose of the UV index is to help people effectively protect themselves from UV radiation, which has health benefits in moderation but in excess causes sunburn, skin aging, DNA damage, skin cancer, immunosuppression, and eye damage, such as cataracts. The scale was developed by Canadian scientists in 1992, and then adopted and standardized by the UN's Worl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Department Of Health (Western Australia)
The Department of Health is a Western Australian government department responsible for regulating and advancing health within the state. It manages a system of multiple Health Service Providers (HSPs) which make up Western Australia's public health system, and is collectively referred to as WA Health. WA Health covers a state which spans over 2.5 million square kilometres, making it the world's largest single health authority by area. History The Public Health Department of Western Australia operated between 1911 and 1984. It merged with Mental Health Services and the Department of Hospital and Allied Services in July 1984, to become the Health Department of Western Australia. In September 2001, it was renamed to the Department of Health. Preceding agencies * Medical Department, 1 January 18501 October 1906 * Central Board of Health, 17 November 188631 May 1911 * Public Health Department of Western Australia, 1 June 191130 June 1984 * Department of Hospital and Allied Services, 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outback
The Outback is a remote, vast, sparsely populated area of Australia. The Outback is more remote than the bush. While often envisaged as being arid, the Outback regions extend from the northern to southern Australian coastlines and encompass a number of climatic zones, including tropical and monsoonal climates in northern areas, arid areas in the "red centre" and semi-arid and temperate climates in southerly regions. Geographically, the Outback is unified by a combination of factors, most notably a low human population density, a largely intact natural environment and, in many places, low-intensity land uses, such as pastoralism (livestock grazing) in which production is reliant on the natural environment. The Outback is deeply ingrained in Australian heritage, history and folklore. In Australian art the subject of the Outback has been vogue, particularly in the 1940s. In 2009, as part of the Q150 celebrations, the Queensland Outback was announced as one of the Q150 Icons of Q ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Australian Bight
The Great Australian Bight is a large oceanic bight, or open bay, off the central and western portions of the southern coastline of mainland Australia. Extent Two definitions of the extent are in use – one used by the International Hydrographic Organization (IHO) and the other used by the Australian Hydrographic Service (AHS). The IHO defines the Great Australian Bight as having the following limits: ''On the North.'' The south coast of the Australian mainland. ''On the South.'' A line joining West Cape Howe () Australia to South West Cape, Tasmania. ''On the East.'' A line from Cape Otway, Victoria to King Island and thence to Cape Grim, the northwest extreme of Tasmania. The AHS defines the bight with a smaller area, from Cape Pasley, Western Australia, to Cape Carnot, South Australia - a distance of . Much of the bight lies due south of the expansive Nullarbor Plain, which straddles South Australia and Western Australia. The Eyre Highway passes close to the cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian High
The Australian High, also known as the Great Australian Bight High or Southern Australian High, is a large semi-permanent high pressure area or subtropical anticyclone that stretches from the Great Australian Bight in Western Australia and South Australia to the southern Victorian coastline on Bass Strait and the east coast of Tasmania, between 30 and 40 degrees of south latitude. In summer, it typically sits over southern Australia on the Bight, right below the coastline, where it generally provides dry weather in the proximate region. In winter it normally moves north, therefore permitting cold fronts and low pressure systems to relocate up from the Great Australian Bight and bring rainfall to most parts of southern Australia. Whilst it primarily occurs and remains more stationary in the warm season (Nov-Apr), it can intermittently make an appearance over the Bight in the cool season as well. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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