Rain is liquid water in the form of droplets that have condensed from atmospheric water vapor and become heavy enough to fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth, it provides suitable conditions for many types of ecosystems, as well as water for hydroelectric power plants and crop irrigation. The major cause of rain production is moisture moving along three-dimensional zones of temperature and moisture contrasts known as weather fronts. If enough moisture and upward motion is present, precipitation falls from convective clouds such as cumulonimbus which can organize into narrow rainbands. In mountainous areas, heavy precipitation is possible where upslope flow is maximized within windward sides of the terrain at elevation which forces moist air to condense and fall out as rainfall along the sides of mountains. On the leeward side of mountains, desert climates can exist due to the dry air caused by downslope flow which causes heating and drying of the air mass.
The movement of the monsoon trough, or intertropical convergence zone, brings rainy seasons to savannah climes. The urban heat island effect leads to increased rainfall, both in amounts and intensity, downwind of cities. Global warming is causing changes in the precipitation pattern globally, including wetter conditions across eastern North America and drier conditions in the tropics. Antarctica is the driest continent; the globally averaged annual precipitation over land is 715 mm, but over the whole Earth it is much higher at 990 mm. Climate classification systems such as the Köppen classification system use average annual rainfall to help differentiate between differing climate regimes. Rainfall is measured using rain gauges. Rainfall amounts can be estimated by weather radar. Rain is known or suspected on other planets, where it may be composed of methane, sulfuric acid, or iron rather than water. Air contains water vapor, the amount of water in a given mass of dry air, known as the mixing ratio, is measured in grams of water per kilogram of dry air.
The amount of moisture in air is commonly reported as relative humidity. How much water vapor a parcel of air can contain before it becomes saturated and forms into a cloud depends on its temperature. Warmer air can contain more water vapor than cooler air before becoming saturated. Therefore, one way to saturate a parcel of air is to cool it; the dew point is the temperature. There are four main mechanisms for cooling the air to its dew point: adiabatic cooling, conductive cooling, radiational cooling, evaporative cooling. Adiabatic cooling occurs when air expands; the air can rise due to convection, large-scale atmospheric motions, or a physical barrier such as a mountain. Conductive cooling occurs when the air comes into contact with a colder surface by being blown from one surface to another, for example from a liquid water surface to colder land. Radiational cooling occurs due to the emission of infrared radiation, either by the air or by the surface underneath. Evaporative cooling occurs when moisture is added to the air through evaporation, which forces the air temperature to cool to its wet-bulb temperature, or until it reaches saturation.
The main ways water vapor is added to the air are: wind convergence into areas of upward motion, precipitation or virga falling from above, daytime heating evaporating water from the surface of oceans, water bodies or wet land, transpiration from plants, cool or dry air moving over warmer water, lifting air over mountains. Water vapor begins to condense on condensation nuclei such as dust and salt in order to form clouds. Elevated portions of weather fronts force broad areas of upward motion within the Earth's atmosphere which form clouds decks such as altostratus or cirrostratus. Stratus is a stable cloud deck which tends to form when a cool, stable air mass is trapped underneath a warm air mass, it can form due to the lifting of advection fog during breezy conditions. Coalescence occurs. Air resistance causes the water droplets in a cloud to remain stationary; when air turbulence occurs, water droplets collide. As these larger water droplets descend, coalescence continues, so that drops become heavy enough to overcome air resistance and fall as rain.
Coalescence happens most in clouds above freezing, is known as the warm rain process. In clouds below freezing, when ice crystals gain enough mass they begin to fall; this requires more mass than coalescence when occurring between the crystal and neighboring water droplets. This process is temperature dependent, as supercooled water droplets only exist in a cloud, below freezing. In addition, because of the great temperature difference between cloud and ground level, these ice crystals may melt as they fall and become rain. Raindrops have sizes ranging from 0.1 to 9 mm mean diameter. Smaller drops are called cloud droplets, their shape is spherical; as a raindrop increases in size, its shape becomes more oblate, with its largest cross-section facing the oncoming airflow. Large rain drops become flattened on the bottom, like hamburger buns. Contrary to popular beli
The Hauraki Gulf / Tīkapa Moana is a coastal feature of the North Island of New Zealand. It has an area of 4000 km², lies between, in anticlockwise order, the Auckland Region, the Hauraki Plains, the Coromandel Peninsula, Great Barrier Island. Most of the gulf is part of the Hauraki Gulf Marine Park. Hauraki is Māori for north wind. In 2014, the gulf was named Hauraki Gulf / Tīkapa Moana; the gulf is part of the Pacific Ocean, which it joins to the east. It is protected from the Pacific by Great Barrier Island and Little Barrier Island to the north, by the 80-kilometre-long Coromandel Peninsula to the east, it is thus well protected against all but northern winds. Three large channels join the gulf to the Pacific. Colville Channel lies between the Coromandel Peninsula and Great Barrier, Cradock Channel lies between the two islands, Jellicoe Channel lies between Little Barrier and the North Auckland Peninsula. To the north of Auckland several peninsulas jut into the gulf, notably the Whangaparaoa Peninsula.
Tiritiri Matangi Island is near the end of this peninsula. Further north, Kawau Island nestles under the Tawharanui Peninsula. Numerous beaches dot the shores of the gulf, many of them well known for surfing. During the last glaciation period the gulf was dry land, with the sea level being around 100–110 m lower than at present; the gulf was submerged. In the west of the gulf lie a string of islands guarding the mouth of the Waitematā Harbour, one of Auckland's two harbours; these include Ponui Island, Waiheke Island, Tiritiri Matangi and the iconic dome of Rangitoto Island, connected to the much older Motutapu Island by a causeway. The islands are separated from the mainland by the Tamaki Rangitoto Channel. Other islands in the gulf include Browns Island, Motuihe Island, Pakihi Island, Pakatoa Island, Rakino Island, Rotoroa Island in the inner gulf, around Waiheke and Rangitoto. At the southern end of the gulf is the wide shallow Firth of Thames. Beyond this lie the Hauraki Plains, drained by the Waihou River and the Piako River.
The Hunua Ranges and hills of the Coromandel Peninsula rise on either side of the Firth. Some particular common or known animals include bottlenose and common dolphins, the latter sometimes seen in "super schools" of 300-500 animals or more, while various species of whales and orcas are a common sight. There are 25 species of marine mammals in the gulf. Nearly a third of the world's marine mammal species visit the Marine Park. Among larger cetaceans, Bryde's whales are residents and common in the Gulf, their presence in these busily travelled waters leads to a large number of ship strikes, with sometimes several of the whales dying each year from collisions with shipping vessels or sport boats; the population remaining is estimated to be between 100-200. In recent years, increases in numbers of migrating baleen whales are confirmed long after the end of hunting era; these are humpback whales, southern blue whales, pygmy blue whales, southern minke whales. Less fin whales and sei whales are seen as well.
For southern right whales, these whales will become seasonal residents in the gulf as the populations recover. Sperm whales visit occasionally. Many of the islands are official or unofficial bird sanctuaries, holding important or critically endangered species like kiwi, brown teal and grey-faced petrel. Centred on the main conservation island of Tiritiri Matangi and Little Barrier Island, numerous bird species that were locally extinct have been reintroduced in the last decades, while there have been some occurring bird "re-colonisations" after introduced pests were removed from breeding and nesting grounds; the gulf is a vibrant natural environment, which has seen significant damage during the 20th and early 21st century from human use. A major study by the Hauraki Gulf Forum in 2011 found that all environmental indicators were still worsening or stable at problematic levels, leading a major newspaper to title the gulf a "toxic paradise". Damaging were the introduction of industrialised fishing, with for example snapper fishing peaking in the 1970s at more than 10,000 tonnes a year.
This severe overfishing, which unbalanced the marine environment by the removal of a main predator in the food chain, led to further degradation, such as a widespread disappearance of kelp beds as they were overtaken by kina barrens. Trawler fishing in general is seen as damaging the gulf, lobster stock are reported as not rebuilding, it is estimated. Damaging are the results of nitrogen carried into the gulf from surrounding agricultural land, with 90% coming from the dairy-farming runoff into the Firth of Thames. Other exploitation such as the dredging of the mussel beds of the Firth of Thames, reaching its height in 1961 with an estimated 15 million mussels taken have led to damages which have not been recovered forty years possibly due to the dredging having destroyed the underwater surfaces, sediment drainage from the agriculture in the Firth of Thames affecting the mus
The United States of America known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U. S. is the third most populous country. The capital is Washington, D. C. and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico; the State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean; the U. S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The diverse geography and wildlife of the United States make it one of the world's 17 megadiverse countries.
Paleo-Indians migrated from Siberia to the North American mainland at least 12,000 years ago. European colonization began in the 16th century; the United States emerged from the thirteen British colonies established along the East Coast. Numerous disputes between Great Britain and the colonies following the French and Indian War led to the American Revolution, which began in 1775, the subsequent Declaration of Independence in 1776; the war ended in 1783 with the United States becoming the first country to gain independence from a European power. The current constitution was adopted in 1788, with the first ten amendments, collectively named the Bill of Rights, being ratified in 1791 to guarantee many fundamental civil liberties; the United States embarked on a vigorous expansion across North America throughout the 19th century, acquiring new territories, displacing Native American tribes, admitting new states until it spanned the continent by 1848. During the second half of the 19th century, the Civil War led to the abolition of slavery.
By the end of the century, the United States had extended into the Pacific Ocean, its economy, driven in large part by the Industrial Revolution, began to soar. The Spanish–American War and World War I confirmed the country's status as a global military power; the United States emerged from World War II as a global superpower, the first country to develop nuclear weapons, the only country to use them in warfare, a permanent member of the United Nations Security Council. Sweeping civil rights legislation, notably the Civil Rights Act of 1964, the Voting Rights Act of 1965 and the Fair Housing Act of 1968, outlawed discrimination based on race or color. During the Cold War, the United States and the Soviet Union competed in the Space Race, culminating with the 1969 U. S. Moon landing; the end of the Cold War and the collapse of the Soviet Union in 1991 left the United States as the world's sole superpower. The United States is the world's oldest surviving federation, it is a representative democracy.
The United States is a founding member of the United Nations, World Bank, International Monetary Fund, Organization of American States, other international organizations. The United States is a developed country, with the world's largest economy by nominal GDP and second-largest economy by PPP, accounting for a quarter of global GDP; the U. S. economy is post-industrial, characterized by the dominance of services and knowledge-based activities, although the manufacturing sector remains the second-largest in the world. The United States is the world's largest importer and the second largest exporter of goods, by value. Although its population is only 4.3% of the world total, the U. S. holds 31% of the total wealth in the world, the largest share of global wealth concentrated in a single country. Despite wide income and wealth disparities, the United States continues to rank high in measures of socioeconomic performance, including average wage, human development, per capita GDP, worker productivity.
The United States is the foremost military power in the world, making up a third of global military spending, is a leading political and scientific force internationally. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere America in honor of the Italian explorer and cartographer Amerigo Vespucci; the first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq. to George Washington's aide-de-camp and Muster-Master General of the Continental Army, Lt. Col. Joseph Reed. Moylan expressed his wish to go "with full and ample powers from the United States of America to Spain" to seek assistance in the revolutionary war effort; the first known publication of the phrase "United States of America" was in an anonymous essay in The Virginia Gazette newspaper in Williamsburg, Virginia, on April 6, 1776. The second draft of the Articles of Confederation, prepared by John Dickinson and completed by June 17, 1776, at the latest, declared "The name of this Confederation shall be the'United States of America'".
The final version of the Articles sent to the states for ratification in late 1777 contains the sentence "The Stile of this Confederacy shall be'The United States of America'". In June 1776, Thomas Jefferson wrote the phrase "UNITED STATES OF AMERICA" in all capitalized letters in the headline of his "original Rough draught" of the Declaration of Independence; this draft of the document did not surface unti
Waiheke Island is the most populated and second-largest island in the Hauraki Gulf of New Zealand. Its ferry terminal in Matiatia Bay at the western end is 21.5 km from the central-city terminal in Auckland. Waiheke is the second-largest island in the gulf, after Great Barrier Island, is the most populated island in the gulf, with 9,250 permanent residents, it is New Zealand's most densely populated island, with nearly 100 people/km², the third most populated after the North and South Islands. It is the most accessible island in the gulf, with regular passenger and car-ferry services, a helicopter operator based on the island, other air links. In November 2015, Waiheke Island received international attention when it was rated the fifth-best destination in the world to visit in 2016 by Lonely Planet, voted the fourth best island in the world in Condé Nast Traveler's 30 Best Islands in the World list; the island is off the coast of the North Island. It is 19.3 km in length from west to east, varies in width from 0.64 to 9.65 km, has a surface area of 92 km2.
The coastline is 133.5 km, including 40 km of beaches. The port of Matiatia at the western end is 17.7 km from Auckland and the eastern end is 21.4 km from Coromandel. The much smaller Tarahiki Island lies 3 km to the east; the island is hilly with few flat areas, the highest point being Maunganui at 231 m. The climate is warmer than Auckland, with less humidity and rain, more sunshine hours. There are locations of interest to geologists: an argillite outcrop in Rocky Bay, a chert stack at the end of Pohutukawa Point, considered "one of the best exposures of folded chert in Auckland City". There are many scenic beaches, including: Oneroa Beach – The main beach, on the northern side of the town of Oneroa, it has public toilets and a swing for children. Little Oneroa Beach – A small secluded beach at the east end of Oneroa Beach, separated by a protruding cliff wall, it has public toilets and a children's playground. Palm Beach – Similar in shape to Oneroa Beach, it gets its name from the mature phoenix palms at the east end, where a public toilet and free BBQ facilities are located.
There is a children's playground in the middle section of the beach which has a free BBQ area, public toilets and an outdoor public shower. Little Palm Beach – A small clothes-optional beach at the west end of Palm Beach. Blackpool Beach – The south-facing counterpart of Oneroa Beach, lining Blackpool and popular for kayaking and windsurfing. Surfdale Beach – A zoned-in beach on the southern side of Surfdale, separated from Blackpool Beach by a small protruding peninsula, which has a scenic unsealed route called The Esplanade linking the beaches. Popular for kitesurfing. Has a free BBQ area and children's playground. Onetangi Beach – A 1.87-kilometre long, north-facing beach lining Onetangi, a Māori name meaning "weeping sands". For many years it has been the site of the Onetangi Beach Horse Races, its western end inaccessible at high tide, is clothes-optional. It has sandcastle-building contests annually. Free BBQ and public facilities. Cactus Bay – Considered by many Waihekeans as the most perfect beach and, with nearby Garden Cove, a romantic place for picnicking.
The beach is accessible only by boat or kayak, as its land access was blocked off by a private landowner. Shelly Beach – A small and well sheltered shell and stone beach located between Oneroa and Ostend, it has free a public toilet and a diving platform located just off shore. It's a popular choice with families as at high tide, it is calm and flat - ideal for children. Waiheke, like Auckland, experiences a subtropical climate according to the Trewartha climate classification, an oceanic climate according to the Köppen climate classification; the region lies 13° of latitude south of the Tropic of Capricorn, so tropical plants which are protected for the winter months will flower and fruit in the summer, cold climate vegetables planted in autumn will mature in early spring. Summers tend to be warm and humid, while winters are mild with frost being a rare event on Waiheke. Rainfall is plentiful, though dry spells may occur during the summer months which can be problematic for many of the island residents, the vast majority of whom rely on rainwater harvesting from residential roofs for drinking and household use.
During such dry periods, the island's water-delivery trucks can be seen replenishing residential water tanks that have run dry. It is anecdotally said by locals that Waiheke has a micro-climate which differs to that of other parts of the Auckland isthmus. Though little factual data appears to exist to support this, the below-listed climatic data taken from a recent NIWA report does suggest Waiheke receives over 100 hours more per year of sunshine than other parts of Auckland. Detailed monthly climate data, such as air temperature, sea temperature and wind speeds is needed but does not appear to be available; the original Māori name for Waiheke was Te Motu-arai-roa, "the long sheltering island" but at the time the first European visitors arrived it was known as Motu-Wai-Heke, "island of trickling waters" - rendered as Motu Wy Hake by James Downie, master of the store ship HMS Coromandel, in his 1820 chart of the Tamak
A naval mine is a self-contained explosive device placed in water to damage or destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, any vessel. Naval mines can be used offensively, to hamper enemy shipping movements or lock vessels into a harbour. Mines can be laid in many ways: by purpose-built minelayers, refitted ships, submarines, or aircraft—and by dropping them into a harbour by hand, they can be inexpensive: some variants can cost as little as US$2000, though more sophisticated mines can cost millions of dollars, be equipped with several kinds of sensors, deliver a warhead by rocket or torpedo. Their flexibility and cost-effectiveness make mines attractive to the less powerful belligerent in asymmetric warfare; the cost of producing and laying a mine is between 0.5% and 10% of the cost of removing it, it can take up to 200 times as long to clear a minefield as to lay it. Parts of some World War II naval minefields still exist because they are too extensive and expensive to clear.
It is possible for some of these 1940s-era mines to remain dangerous for many years to come. Mines have been employed as offensive or defensive weapons in rivers, estuaries and oceans, but they can be used as tools of psychological warfare. Offensive mines are placed in enemy waters, outside harbours and across important shipping routes with the aim of sinking both merchant and military vessels. Defensive minefields safeguard key stretches of coast from enemy ships and submarines, forcing them into more defended areas, or keeping them away from sensitive ones. Minefields designed for psychological effect are placed on trade routes and are used to stop shipping from reaching an enemy nation, they are spread thinly, to create an impression of minefields existing across large areas. A single mine inserted strategically on a shipping route can stop maritime movements for days while the entire area is swept. International law requires nations to declare when they mine an area, to make it easier for civil shipping to avoid the mines.
The warnings do not have to be specific. Precursors to naval mines were first invented by Chinese innovators of Imperial China and were described in thorough detail by the early Ming dynasty artillery officer Jiao Yu, in his 14th century military treatise known as the Huolongjing. Chinese records tell of naval explosives in the 16th century, used to fight against Japanese pirates; this kind of naval mine was loaded in a wooden box, sealed with putty. General Qi Jiguang made several timed, to harass Japanese pirate ships; the Tiangong Kaiwu treatise, written by Song Yingxing in 1637 AD, describes naval mines with a rip cord pulled by hidden ambushers located on the nearby shore who rotated a steel wheellock flint mechanism to produce sparks and ignite the fuse of the naval mine. Although this is the rotating steel wheellock's first use in naval mines, Jiao Yu had described their use for land mines back in the 14th century; the first plan for a sea mine in the West was by Ralph Rabbards, who presented his design to Queen Elizabeth I of England in 1574.
The Dutch inventor Cornelius Drebbel was employed in the Office of Ordnance by King Charles I of England to make weapons, including a "floating petard" which proved a failure. Weapons of this type were tried by the English at the Siege of La Rochelle in 1627. American David Bushnell developed the first American naval mine for use against the British in the American War of Independence, it was a watertight keg filled with gunpowder, floated toward the enemy, detonated by a sparking mechanism if it struck a ship. It was used on the Delaware River as a drift mine. In 1812 Russian engineer Pavel Shilling exploded an underwater mine using an electrical circuit. In 1842 Samuel Colt used an electric detonator to destroy a moving vessel to demonstrate an underwater mine of his own design to the United States Navy and President John Tyler. However, opposition from former President John Quincy Adams scuttled the project as "not fair and honest warfare." In 1854, during the unsuccessful attempt of the Anglo-French fleet to seize the Kronstadt fortress, British steamships HMS Merlin, HMS Vulture and HMS Firefly suffered damage due to the underwater explosions of Russian naval mines.
Russian naval specialists set more than 1500 naval mines, or infernal machines, designed by Moritz von Jacobi and by Immanuel Nobel, in the Gulf of Finland during the Crimean War of 1853-1856. The mining of Vulcan led to the world's first minesweeping operation. During the next 72 hours, 33 mines were swept; the Jacobi mine was designed by German-born, Russian engineer Jacobi, in 1853. The mine was tied to the sea bottom by an anchor. A cable connected it to a galvanic cell which powered it from the shore, the power of its explosive charge was equal to 14 kilograms of black powder. In the summer of 1853, the production of the mine was approved by the Committee for Mines of the Ministry of War of the Russian Empire. In 1854, 60 Jacobi mines were laid in the vicinity of the Forts Pavel and Alexander, to deter the British Baltic Fleet from attacking them, it phased out its direct competitor the Nobel mine on the insistence of Admiral Fyodor Litke. The Nobel mines were bought from Swedish industrialist Immanuel Nobel who had entered into collusion with Russian head of navy Alexander Sergeyevich Menshikov.
Despite their high cost t
The Māori are the indigenous Polynesian people of New Zealand. Māori originated with settlers from eastern Polynesia, who arrived in New Zealand in several waves of canoe voyages some time between 1250 and 1300. Over several centuries in isolation, the Polynesian settlers developed a unique culture, with their own language, a rich mythology, distinctive crafts and performing arts. Early Māori formed tribal groups based on organisation. Horticulture flourished using plants; the arrival of Europeans to New Zealand, starting in the 17th century, brought enormous changes to the Māori way of life. Māori people adopted many aspects of Western society and culture. Initial relations between Māori and Europeans were amicable, with the signing of the Treaty of Waitangi in 1840, the two cultures coexisted as part of a new British colony. Rising tensions over disputed land sales led to conflict in the 1860s. Social upheaval, decades of conflict and epidemics of introduced disease took a devastating toll on the Māori population, which fell dramatically.
By the start of the 20th century, the Māori population had begun to recover, efforts have been made to increase their standing in wider New Zealand society and achieve social justice. Traditional Māori culture has thereby enjoyed a significant revival, further bolstered by a Māori protest movement that emerged in the 1960s. In the 2013 census, there were 600,000 people in New Zealand identifying as Māori, making up 15 percent of the national population, they are the second-largest ethnic group in New Zealand, after European New Zealanders. In addition, more than 140,000 Māori live in Australia; the Māori language is spoken to some extent by about a fifth of all Māori, representing 3 per cent of the total population. Māori are active in all spheres of New Zealand culture and society, with independent representation in areas such as media and sport. Disproportionate numbers of Māori face significant economic and social obstacles, have lower life expectancies and incomes compared with other New Zealand ethnic groups.
They suffer higher levels of crime, health problems, educational under-achievement. A number of socioeconomic initiatives have been instigated with the aim of "closing the gap" between Māori and other New Zealanders. Political and economic redress for historical grievances is ongoing. In the Māori language, the word māori means "normal", "natural" or "ordinary". In legends and oral traditions, the word distinguished ordinary mortal human beings—tāngata māori—from deities and spirits. Wai māori denotes "fresh water", as opposed to salt water. There are cognate words in most Polynesian languages, all deriving from Proto-Polynesian *maqoli, which has the reconstructed meaning "true, genuine"; the spelling of "Māori" with or without the macron is inconsistent in general-interest English-language media in New Zealand, although some newspapers and websites have adopted the standard Māori-language spelling. Early visitors from Europe to New Zealand referred to the indigenous inhabitants as "New Zealanders" or as "natives".
The Māori used the term Māori to describe themselves in a pan-tribal sense. Māori people use the term tangata whenua to identify in a way that expresses their relationship with a particular area of land; the term can refer to the Māori people as a whole in relation to New Zealand as a whole. The Māori Purposes Act of 1947 required the use of the term "Māori" rather than "Native" in official usage; the Department of Native Affairs was renamed as the Department of Māori Affairs. Before 1974, the government required documented ancestry to determine the legal definition of "a Māori person". For example, bloodlines or percentage of Māori ancestry was used to determine whether a person should enroll on the general electoral roll or the separate Māori roll. In 1947, the authorities determined that a man, five-eighths Māori had improperly voted in the general parliamentary electorate of Raglan; the Māori Affairs Amendment Act 1974 changed the definition, allowing individuals to self-identify as to their cultural identity.
In matters involving financial benefits provided by the government to people of Māori ethnicity—scholarships, for example, or Waitangi Tribunal settlements—authorities require some documentation of ancestry or continuing cultural connection but no minimum "blood" requirement exists as determined by the government. The most current reliable evidence indicates that the initial settlement of New Zealand occurred around 1280 CE, at the end of the medieval warm period. Previous dating of some kiore bones at 50–150 has now been shown to have been unreliable. Māori oral history describes the arrival of ancestors from Hawaiki, in large ocean-going waka. Migration accounts vary among tribes, whose members may identify with several waka in their genealogies. In the last few decades, mitochondrial-DNA research has allowed an estimate to be made of the number of women in the founding population—between 50 and 100. Evidence fro
Auckland is a city in the North Island of New Zealand. Auckland is the largest urban area in the country, with an urban population of around 1,628,900, it is located in the Auckland Region—the area governed by Auckland Council—which includes outlying rural areas and the islands of the Hauraki Gulf, resulting in a total population of 1,695,900. A diverse and multicultural city, Auckland is home to the largest Polynesian population in the world; the Māori-language name for Auckland is Tāmaki or Tāmaki-makau-rau, meaning "Tāmaki with a hundred lovers", in reference to the desirability of its fertile land at the hub of waterways in all directions. The Auckland urban area ranges to Waiwera in the north, Kumeu in the north-west, Runciman in the south. Auckland lies between the Hauraki Gulf of the Pacific Ocean to the east, the low Hunua Ranges to the south-east, the Manukau Harbour to the south-west, the Waitakere Ranges and smaller ranges to the west and north-west; the surrounding hills are covered in rainforest and the landscape is dotted with dozens of dormant volcanic cones.
The central part of the urban area occupies a narrow isthmus between the Manukau Harbour on the Tasman Sea and the Waitematā Harbour on the Pacific Ocean. Auckland is one of the few cities in the world to have a harbour on each of two separate major bodies of water; the isthmus on which Auckland resides was first settled around 1350 and was valued for its rich and fertile land. The Māori population in the area is estimated to have peaked at 20,000 before the arrival of Europeans. After a British colony was established in 1840, William Hobson Lieutenant-Governor of New Zealand, chose the area as his new capital, he named the area for Earl of Auckland, British First Lord of the Admiralty. It was replaced as the capital in 1865 by Wellington, but immigration to Auckland stayed strong, it has remained the country's most populous city. Today, Auckland's central business district is the major financial centre of New Zealand. Auckland is classified as a Beta + World City because of its importance in commerce, the arts, education.
The University of Auckland, established in 1883, is the largest university in New Zealand. Landmarks such as the Auckland Art Gallery Toi o Tāmaki, the Harbour Bridge, the Sky Tower, many museums, parks and theatres are among the city's significant tourist attractions. Auckland Airport handles around one million international passengers a month. Despite being one of the most expensive cities in the world, Auckland is ranked third on the 2016 Mercer Quality of Living Survey, making it one of the most liveable cities; the isthmus was settled by Māori circa 1350, was valued for its rich and fertile land. Many pā were created on the volcanic peaks; the Māori population in the area is estimated to have been about 20,000 before the arrival of Europeans. The introduction of firearms at the end of the eighteenth century, which began in Northland, upset the balance of power and led to devastating intertribal warfare beginning in 1807, causing iwi who lacked the new weapons to seek refuge in areas less exposed to coastal raids.
As a result, the region had low numbers of Māori when European settlement of New Zealand began. On 27 January 1832, Joseph Brooks Weller, eldest of the Weller brothers of Otago and Sydney, bought land including the site of the modern city of Auckland, the North Shore, part of Rodney District for "one large cask of powder" from "Cohi Rangatira". After the signing of the Treaty of Waitangi in February 1840, the new Governor of New Zealand, William Hobson, chose the area as his new capital and named it for George Eden, Earl of Auckland Viceroy of India; the land that Auckland was established on was given to the Governor by a local iwi, Ngāti Whātua, as a sign of goodwill and in the hope that the building of a city would attract commercial and political opportunities for iwi. Auckland was declared New Zealand's capital in 1841, the transfer of the administration from Russell in the Bay of Islands was completed in 1842; however in 1840 Port Nicholson was seen as a better choice for an administrative capital because of its proximity to the South Island, Wellington became the capital in 1865.
After losing its status as capital, Auckland remained the principal city of the Auckland Province until the provincial system was abolished in 1876. In response to the ongoing rebellion by Hone Heke in the mid-1840s, the government encouraged retired but fit British soldiers and their families to migrate to Auckland to form a defence line around the port settlement as garrison soldiers. By the time the first Fencibles arrived in 1848, the rebels in the north had been defeated. Outlying defensive towns were constructed to the south, stretching in a line from the port village of Onehunga in the west to Howick in the east; each of the four settlements had about 800 settlers. In the early 1860s, Auckland became a base against the Māori King Movement, the 12,000 Imperial soldiers stationed there led to a strong boost to local commerce. This, continued road building towards the south into the Waikato, enabled Pākehā influence to spread from Auckland; the city's population grew rapidly, from 1,500 in 1841 to 3,635 in 1845 to 12,423 by 1864.
The growth occurred to other mercantile-dominated cities around the port and with problems of overcrowding and pollution. Auckland's population of ex-soldiers was far greater than that of other settlements: about 50 percent of the popula