1.
Netherlands
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The Netherlands, also informally known as Holland is the main constituent country of the Kingdom of the Netherlands. It is a densely populated country located in Western Europe with three territories in the Caribbean. The European part of the Netherlands borders Germany to the east, Belgium to the south, and the North Sea to the northwest, sharing borders with Belgium, the United Kingdom. The three largest cities in the Netherlands are Amsterdam, Rotterdam and The Hague, Amsterdam is the countrys capital, while The Hague holds the Dutch seat of parliament and government. The port of Rotterdam is the worlds largest port outside East-Asia, the name Holland is used informally to refer to the whole of the country of the Netherlands. Netherlands literally means lower countries, influenced by its low land and flat geography, most of the areas below sea level are artificial. Since the late 16th century, large areas have been reclaimed from the sea and lakes, with a population density of 412 people per km2 –507 if water is excluded – the Netherlands is classified as a very densely populated country. Only Bangladesh, South Korea, and Taiwan have both a population and higher population density. Nevertheless, the Netherlands is the worlds second-largest exporter of food and agricultural products and this is partly due to the fertility of the soil and the mild climate. In 2001, it became the worlds first country to legalise same-sex marriage, the Netherlands is a founding member of the EU, Eurozone, G-10, NATO, OECD and WTO, as well as being a part of the Schengen Area and the trilateral Benelux Union. The first four are situated in The Hague, as is the EUs criminal intelligence agency Europol and this has led to the city being dubbed the worlds legal capital. The country also ranks second highest in the worlds 2016 Press Freedom Index, the Netherlands has a market-based mixed economy, ranking 17th of 177 countries according to the Index of Economic Freedom. It had the thirteenth-highest per capita income in the world in 2013 according to the International Monetary Fund, in 2013, the United Nations World Happiness Report ranked the Netherlands as the seventh-happiest country in the world, reflecting its high quality of life. The Netherlands also ranks joint second highest in the Inequality-adjusted Human Development Index, the region called Low Countries and the country of the Netherlands have the same toponymy. Place names with Neder, Nieder, Nether and Nedre and Bas or Inferior are in use in all over Europe. They are sometimes used in a relation to a higher ground that consecutively is indicated as Upper, Boven, Oben. In the case of the Low Countries / the Netherlands the geographical location of the region has been more or less downstream. The geographical location of the region, however, changed over time tremendously
2.
Utrecht (province)
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Utrecht is a province of the Netherlands. With an area of approximately 1,400 square kilometres, it is the smallest of the twelve provinces, apart from its eponymous capital, major cities in the province are Amersfoort, Houten, Nieuwegein, Veenendaal, IJsselstein and Zeist. In the International Organization for Standardization world region code system Utrecht makes up one region with code ISO 3166-2, the Bishopric of Utrecht was established in 695 when Saint Willibrord was consecrated bishop of the Frisians at Rome by Pope Sergius I. With the consent of the Frankish ruler, Pippin of Herstal, after Willibrords death the diocese suffered greatly from the incursions of the Vikings. Better times appeared during the reign of the Saxon emperors, who summoned the Bishops of Utrecht to attend the imperial councils. In 1024 the bishops were made Princes of the Holy Roman Empire, in 1122, with the Concordat of Worms, the Emperors right of investiture was annulled, and the cathedral chapter received the right to elect the bishop. It was, however, soon obligated to share this right with the four other chapters in the city. The Counts of Holland and Guelders, between whose territories the lands of the Bishops of Utrecht lay, also sought to acquire influence over the filling of the episcopal see and this often led to disputes and consequently the Holy See frequently interfered in the election. After the middle of the 14th century the popes repeatedly appointed the bishop directly without regard to the five chapters, during the Hook and Cod Wars, Utrecht was fought over by forces of the Duke of Burgundy leading to the First Utrecht Civil War and Second Utrecht Civil War. The chapters transferred their right of electing the bishop to Charles V and his government, however, the Habsburg rule did not last long, as Utrecht joined in the Dutch Revolt against Charles successor Philip II in 1579, becoming a part of the Dutch Republic. In World War II, Utrecht was held by German forces until the capitulation of the Germans in the Netherlands on May 5,1945. It was occupied by Canadian Allied forces on May 7,1945, the towns of Oudewater, Woerden and Vianen were transferred from the province of South Holland to Utrecht in 1970,1989 and 2002 respectively. In February 2011, Utrecht, together with the provinces of North Holland and Flevoland and this has been positively received by the Dutch cabinet, for the desire to create one Randstad province has already been mentioned in the coalition agreement. The province of South Holland, part of the Randstad urban area, visioned to be part of the Randstad province, with or without South Holland, if created, the new province would be the largest in the Netherlands in both area and population. In the east of Utrecht lies the Utrecht Hill Ridge, a chain of left as lateral moraine by tongues of glacial ice after the Saline glaciation that preceded the last ice age. Because of the scarcity of nutrients in the sandy soil. The south of the province is a river landscape, the west consists mostly of meadows. In the north are big lakes formed by the digging of peat bogs formed after the last ice age
3.
Climate change
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Climate change is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time. Climate change may refer to a change in weather conditions. Climate change is caused by such as biotic processes, variations in solar radiation received by Earth, plate tectonics. Certain human activities have also identified as significant causes of recent climate change. Scientists actively work to understand past and future climate by using observations, more recent data are provided by the instrumental record. The most general definition of change is a change in the statistical properties of the climate system when considered over long periods of time. Accordingly, fluctuations over periods shorter than a few decades, such as El Niño, the term climate change is often used to refer specifically to anthropogenic climate change. Anthropogenic climate change is caused by activity, as opposed to changes in climate that may have resulted as part of Earths natural processes. In this sense, especially in the context of environmental policy, within scientific journals, global warming refers to surface temperature increases while climate change includes global warming and everything else that increasing greenhouse gas levels affect. A related term is climatic change, in 1966, the World Meteorological Organization proposed the term climatic change to encompass all forms of climatic variability on time-scales longer than 10 years, regardless of cause. Change was a given and climatic was used as an adjective to describe this kind of change, when it was realized that human activities had a potential to drastically alter the climate, the term climate change replaced climatic change as the dominant term to reflect an anthropogenic cause. Climate change was incorporated in the title of the Intergovernmental Panel on Climate Change, Climate change, used as a noun, became an issue rather than the technical description of changing weather. On the broadest scale, the rate at which energy is received from the Sun and this energy is distributed around the globe by winds, ocean currents, and other mechanisms to affect the climates of different regions. Factors that can shape climate are called climate forcings or forcing mechanisms, there are a variety of climate change feedbacks that can either amplify or diminish the initial forcing. Some parts of the system, such as the oceans and ice caps, respond more slowly in reaction to climate forcings. There are also key factors which when exceeded can produce rapid change. Forcing mechanisms can be internal or external. Internal forcing mechanisms are natural processes within the system itself
4.
Meteorology
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Meteorology is a branch of the atmospheric sciences which includes atmospheric chemistry and atmospheric physics, with a major focus on weather forecasting. The study of meteorology dates back millennia, though significant progress in meteorology did not occur until the 18th century, the 19th century saw modest progress in the field after weather observation networks were formed across broad regions. Prior attempts at prediction of weather depended on historical data, Meteorological phenomena are observable weather events that are explained by the science of meteorology. Different spatial scales are used to describe and predict weather on local, regional, Meteorology, climatology, atmospheric physics, and atmospheric chemistry are sub-disciplines of the atmospheric sciences. Meteorology and hydrology compose the interdisciplinary field of hydrometeorology, the interactions between Earths atmosphere and its oceans are part of a coupled ocean-atmosphere system. Meteorology has application in diverse fields such as the military, energy production, transport, agriculture. The word meteorology is from Greek μετέωρος metéōros lofty, high and -λογία -logia -logy, varāhamihiras classical work Brihatsamhita, written about 500 AD, provides clear evidence that a deep knowledge of atmospheric processes existed even in those times. In 350 BC, Aristotle wrote Meteorology, Aristotle is considered the founder of meteorology. One of the most impressive achievements described in the Meteorology is the description of what is now known as the hydrologic cycle and they are all called swooping bolts because they swoop down upon the Earth. Lightning is sometimes smoky, and is then called smoldering lightning, sometimes it darts quickly along, at other times, it travels in crooked lines, and is called forked lightning. When it swoops down upon some object it is called swooping lightning, the Greek scientist Theophrastus compiled a book on weather forecasting, called the Book of Signs. The work of Theophrastus remained a dominant influence in the study of weather, in 25 AD, Pomponius Mela, a geographer for the Roman Empire, formalized the climatic zone system. According to Toufic Fahd, around the 9th century, Al-Dinawari wrote the Kitab al-Nabat, ptolemy wrote on the atmospheric refraction of light in the context of astronomical observations. St. Roger Bacon was the first to calculate the size of the rainbow. He stated that a rainbow summit can not appear higher than 42 degrees above the horizon, in the late 13th century and early 14th century, Kamāl al-Dīn al-Fārisī and Theodoric of Freiberg were the first to give the correct explanations for the primary rainbow phenomenon. Theoderic went further and also explained the secondary rainbow, in 1716, Edmund Halley suggested that aurorae are caused by magnetic effluvia moving along the Earths magnetic field lines. In 1441, King Sejongs son, Prince Munjong, invented the first standardized rain gauge and these were sent throughout the Joseon Dynasty of Korea as an official tool to assess land taxes based upon a farmers potential harvest. In 1450, Leone Battista Alberti developed a swinging-plate anemometer, and was known as the first anemometer, in 1607, Galileo Galilei constructed a thermoscope
5.
Europe
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Europe is a continent that comprises the westernmost part of Eurasia. Europe is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, yet the non-oceanic borders of Europe—a concept dating back to classical antiquity—are arbitrary. Europe covers about 10,180,000 square kilometres, or 2% of the Earths surface, politically, Europe is divided into about fifty sovereign states of which the Russian Federation is the largest and most populous, spanning 39% of the continent and comprising 15% of its population. Europe had a population of about 740 million as of 2015. Further from the sea, seasonal differences are more noticeable than close to the coast, Europe, in particular ancient Greece, was the birthplace of Western civilization. The fall of the Western Roman Empire, during the period, marked the end of ancient history. Renaissance humanism, exploration, art, and science led to the modern era, from the Age of Discovery onwards, Europe played a predominant role in global affairs. Between the 16th and 20th centuries, European powers controlled at times the Americas, most of Africa, Oceania. The Industrial Revolution, which began in Great Britain at the end of the 18th century, gave rise to economic, cultural, and social change in Western Europe. During the Cold War, Europe was divided along the Iron Curtain between NATO in the west and the Warsaw Pact in the east, until the revolutions of 1989 and fall of the Berlin Wall. In 1955, the Council of Europe was formed following a speech by Sir Winston Churchill and it includes all states except for Belarus, Kazakhstan and Vatican City. Further European integration by some states led to the formation of the European Union, the EU originated in Western Europe but has been expanding eastward since the fall of the Soviet Union in 1991. The European Anthem is Ode to Joy and states celebrate peace, in classical Greek mythology, Europa is the name of either a Phoenician princess or of a queen of Crete. The name contains the elements εὐρύς, wide, broad and ὤψ eye, broad has been an epithet of Earth herself in the reconstructed Proto-Indo-European religion and the poetry devoted to it. For the second part also the divine attributes of grey-eyed Athena or ox-eyed Hera. The same naming motive according to cartographic convention appears in Greek Ανατολή, Martin Litchfield West stated that phonologically, the match between Europas name and any form of the Semitic word is very poor. Next to these there is also a Proto-Indo-European root *h1regʷos, meaning darkness. Most major world languages use words derived from Eurṓpē or Europa to refer to the continent, in some Turkic languages the originally Persian name Frangistan is used casually in referring to much of Europe, besides official names such as Avrupa or Evropa
6.
Radioactive contamination
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Such contamination presents a hazard because of the radioactive decay of the contaminants, which emit harmful ionising radiation such as alpha particles or beta particles, gamma rays or neutrons. It is important to be clear that the contamination gives rise to the hazard. Contamination may affect a person, a place, an animal, a spilled vial of radioactive material like uranyl nitrate may contaminate the floor and any rags used to wipe up the spill. Radioactive contamination is typically the result of a spill or accident during the production, or use of, radionuclides, less typically, nuclear fallout is the distribution of radioactive contamination by a nuclear explosion. The amount of material released in an accident is called the source term. Contamination may occur from radioactive gases, liquids or particles, for example, if a radionuclide used in nuclear medicine is spilled, the material could be spread by people as they walk around. Radioactive contamination may also be a result of certain processes. In cases that radioactive material cannot be contained, it may be diluted to safe concentrations, for a discussion of environmental contamination by alpha emitters please see actinides in the environment. Contamination does not include residual radioactive material remaining at a site after the completion of decommissioning, therefore, radioactive material in sealed and designated containers is not properly referred to as contamination, although the units of measurement might be the same. Containment is the way of preventing contamination being released into the environment or coming into contact or being ingested by humans. Being within the intended Containment differentiates radioactive material from radioactive contamination, when radioactive materials are concentrated to a detectable level outside a containment, the area affected is generally referred to as contaminated. There are a number of techniques for containing radioactive material so that it does not spread beyond the containment. In the case of liquids this is by the use of high integrity tanks or containers, where material is likely to become airborne, then extensive use is made of the glovebox, which is a common technique in hazardous laboratory and process operations in many industries. A variety of radionuclides occur naturally in the environment, elements like uranium and thorium, and their decay products, are present in rock and soil. Potassium-40, a nuclide, makes up a small percentage of all potassium and is present in the human body. Other nuclides, like carbon-14, which is present in all living organisms, are created by cosmic rays. These levels of radioactivity pose little danger but can confuse measurement, a particular problem is encountered with naturally generated radon gas which can affect instruments which are set to detect contamination close to normal background levels and can cause false alarms. Because of this skill is required by the operator of radiological survey equipment to differentiate between background radiation and the radiation emanates from contamination
7.
Air pollution
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Air pollution occurs when harmful substances including particulates and biological molecules are introduced into Earths atmosphere. It may cause diseases, allergies or death in humans, it may cause harm to other living organisms such as animals and food crops. Human activity and natural processes can both generate air pollution, indoor air pollution and poor urban air quality are listed as two of the worlds worst toxic pollution problems in the 2008 Blacksmith Institute Worlds Worst Polluted Places report. According to the 2014 WHO report, air pollution in 2012 caused the deaths of around 7 million people worldwide, an air pollutant is a substance in the air that can have adverse effects on humans and the ecosystem. The substance can be particles, liquid droplets, or gases. A pollutant can be of natural origin or man-made, pollutants are classified as primary or secondary. Primary pollutants are usually produced from a process, such as ash from a volcanic eruption, other examples include carbon monoxide gas from motor vehicle exhaust, or the sulfur dioxide released from factories. Secondary pollutants are not emitted directly, rather, they form in the air when primary pollutants react or interact. Ground level ozone is a prominent example of a secondary pollutant, some pollutants may be both primary and secondary, they are both emitted directly and formed from other primary pollutants. Substances emitted into the atmosphere by human activity include, Carbon dioxide - Debate continues over whether carbon dioxide should be classified as an atmospheric pollutant, because of its role as a greenhouse gas it has been described as the leading pollutant and the worst climate pollution. Against this it is argued that carbon dioxide is a component of the atmosphere, essential for plant life. This question of terminology has practical effects, for example as determining whether the U. S. Clean Air Act is deemed to regulate CO2 emissions, CO2 increase in earths atmosphere has been accelerating. Sulfur oxides - particularly sulfur dioxide, a compound with the formula SO2. SO2 is produced by volcanoes and in industrial processes. Coal and petroleum often contain sulfur compounds, and their combustion generates sulfur dioxide, further oxidation of SO2, usually in the presence of a catalyst such as NO2, forms H2SO4, and thus acid rain. This is one of the causes for concern over the impact of the use of these fuels as power sources. Nitrogen oxides - Nitrogen oxides, particularly nitrogen dioxide, are expelled from high temperature combustion and they can be seen as a brown haze dome above or a plume downwind of cities. Nitrogen dioxide is a compound with the formula NO2
8.
Chernobyl disaster
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The Chernobyl disaster, also referred to as the Chernobyl accident, was a catastrophic nuclear accident. Practically all of this material would then go on to fall-out/precipitate onto much of the surface of the western USSR. The Chernobyl accident dominates the Energy accidents sub-category, of most disastrous nuclear power plant accident in history, both in terms of cost and casualties. It is one of two nuclear energy accidents classified as a level 7 event on the International Nuclear Event Scale. The remains of the No.3 continuing to produce electricity into 2000, the accident motivated safety upgrades on all remaining Soviet-designed reactors in the RBMK family, of which eleven continued to power electric grids as of 2013. These events exposed the graphite moderator of the reactor to air, the resulting fire sent week long plumes of highly radioactive fallout into the atmosphere over an extensive geographical area, including Pripyat. The plumes drifted over parts of the western Soviet Union. According to official data, about 60% of the fallout landed in Belarus. The surveying and detection of isolated fallout hotspots outside this zone over the year eventually resulted in 135,000 long-term evacuees in total. Many thousands of these evacuees would have been better off staying home, Russia, Ukraine, and Belarus have been burdened with the continuing and substantial decontamination and monthly compensation costs, of the Chernobyl accident.5 and 6, were eventually cancelled. There was a drop in the prior rate of new startups. The government coverup of the Chernobyl disaster was a catalyst for glasnost, a report by the International Atomic Energy Agency examines the environmental consequences of the accident. Thirty-one deaths are attributed to the accident, all among the reactor staff. An UNSCEAR report places the total confirmed deaths from radiation at 64 as of 2008. 01% of all incident cancers since the accident. Along similar lines, the 2006 TORCH report, commissioned by the European Greens political party, predicts an eventual 30,000 to 60,000 excess cancer deaths in total, greenpeace itself advocates a figure of at least 200,000 or more. Balonov published by the New York Academy of Sciences concludes that the report is of value because it has very little scientific merit while being highly misleading to the lay reader. It characterized the estimate of nearly a million deaths as more in the realm of fiction than science. On 26 April 1986, at 01,23, reactor four suffered a power increase
9.
National Weather Service
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It is a part of the National Oceanic and Atmospheric Administration branch of the Department of Commerce, and is headquartered in Silver Spring, Maryland. The agency was known as the United States Weather Bureau from 1890 until it adopted its current name in 1970, the NWS performs its primary task through a collection of national and regional centers, and 122 local weather forecast offices. As the NWS is a government agency, most of its products are in the public domain, the agency was placed under the Secretary of War as Congress felt military discipline would probably secure the greatest promptness, regularity, and accuracy in the required observations. Within the Department of War, it was assigned to the U. S. Army Signal Service under Brigadier General Albert J. Myer, General Myer gave the National Weather Service its first name, The Division of Telegrams and Reports for the Benefit of Commerce. The agency first became an enterprise in 1890, when it became part of the Department of Agriculture. The first Weather Bureau radiosonde was launched in Massachusetts in 1937, the Bureau would later be moved to the Department of Commerce in 1940. On July 12,1950, bureau chief Francis W, the Weather Bureau became part of the Environmental Science Services Administration when that agency was formed in August 1966. The Environmental Science Services Administration was renamed the National Oceanic and Atmospheric Administration on October 1,1970, at this time, the Weather Bureau became the National Weather Service. NEXRAD, a system of Doppler radars deployed to improve the detection and warning time of local storms, replaced the WSR-57. Bob Glahn has written a history of the first hundred years of the National Weather Service. The NWS, through a variety of sub-organizations, issues different forecast products to users, although, throughout history, text forecasts have been the means of product dissemination, the NWS has been using more forecast products of a digital, gridded, image or other modern format. Each of the 122 Weather Forecast Offices send their graphical forecasts to a server to be compiled in the National Digital Forecast Database. The NDFD is a collection of weather observations used by organizations and the public, including precipitation amount, temperature. Specific points in the database can be accessed using an XML SOAP service. The National Weather Service issues many products relating to wildfires daily, for example, a Fire Weather Forecast, which have a forecast period covering up to seven days, is issued by local Weather Forecast Offices daily, with updates as needed. The forecasts contain weather information relevant to fire control and smoke management for the next 12 to 48 hours, such as direction and speed. The appropriate crews use this information to plan for staffing and equipment levels, the ability to conduct scheduled controlled burns, and assess the daily fire danger. Once per day, NWS meteorologists issue a coded fire weather forecast for specific United States Forest Service observation sites that are input into the National Fire Danger Rating System
10.
Hong Kong Observatory
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The Hong Kong Observatory is a weather forecast agency of the government of Hong Kong. The Observatory forecasts the weather and issues warnings on weather-related hazards, the Observatory was established in 1883 as the Hong Kong Observatory by Sir George Bowen, the 9th Governor of Hong Kong, with Dr William Doberck as its first director. Early operations included meteorological and magnetic observations, a service based on astronomical observations. The Observatory was renamed the Royal Observatory, Hong Kong after obtaining a Royal Charter in 1912, the Observatory reverted to its original name in 1997 after the transfer of Hong Kongs sovereignty from the UK to China. The Hong Kong Observatory was built in Tsim Sha Tsui, Kowloon in 1883, Observatory Road in Tsim Sha Tsui is so named based on this landmark. However, due to urbanisation, it is now surrounded by skyscrapers. As a result of greenhouse gas emissions, the reflection of sunlight from buildings. This was demonstrated by the increase in average temperatures recorded by the Observatory between 1980 and 2005. This building, built in 1883, is a rectangular two-storey plastered brick structure, it is characterised by arched windows and it now houses the office of the directorate and to serve as a centre of administration of the Observatory. The building is a monument of Hong Kong since 1984. It is next to the 1883 Building, the Centenary Building, in 1981 the logo was changed to the old coat of arms, and in 1997, with the transfer of sovereignty over Hong Kong, the current logo was introduced to replace the colonial symbols. Activities organised for the Friends of the Observatory include regular science lectures, newsletters were also published for members once every four months. The Observatory regularly organises visits for the school students. This outreach programme was extended to school students, the elderly. Talks are also organised in school during the winter time. A roving exhibition for the public was also mounted in shopping malls in 2003, to promote understanding of the services provided by the Observatory and their benefits to the community, over 50 press releases were issued and 7 media briefings were held in 2003. From time to time, the Observatory also works closely with schools for a series of events, including with the Geography Society of PLK Vicwood KT Chong Sixth Form College between 2008 and 2009
11.
Weather forecasting
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Weather forecasting is the application of science and technology to predict the state of the atmosphere for a given location. Human beings have attempted to predict the weather informally for millennia, hence, forecasts become less accurate as the difference between current time and the time for which the forecast is being made increases. The use of ensembles and model consensus help narrow the error, there are a variety of end uses to weather forecasts. Weather warnings are important forecasts because they are used to protect life, forecasts based on temperature and precipitation are important to agriculture, and therefore to traders within commodity markets. Temperature forecasts are used by utility companies to estimate demand over coming days, on an everyday basis, people use weather forecasts to determine what to wear on a given day. Since outdoor activities are severely curtailed by rain, snow and wind chill, forecasts can be used to plan activities around these events. In 2014, the US spent $5.1 billion on weather forecasting, for millennia people have tried to forecast the weather. In 650 BC, the Babylonians predicted the weather from cloud patterns as well as astrology, in about 340 BC, Aristotle described weather patterns in Meteorologica. Later, Theophrastus compiled a book on weather forecasting, called the Book of Signs, chinese weather prediction lore extends at least as far back as 300 BC, which was also around the same time ancient Indian astronomers developed weather-prediction methods. You know how to interpret the appearance of the sky, ancient weather forecasting methods usually relied on observed patterns of events, also termed pattern recognition. For example, it might be observed if the sunset was particularly red. This experience accumulated over the generations to produce weather lore, however, not all of these predictions prove reliable, and many of them have since been found not to stand up to rigorous statistical testing. It was not until the invention of the telegraph in 1835 that the modern age of weather forecasting began. Before that, the fastest that distant weather reports could travel was around 100 miles per day, the two men credited with the birth of forecasting as a science were officer of the Royal Navy Francis Beaufort and his protégé Robert FitzRoy. Beaufort developed the Wind Force Scale and Weather Notation coding, which he was to use in his journals for the remainder of his life. He also promoted the development of reliable tide tables around British shores, Robert FitzRoy was appointed in 1854 as chief of a new department within the Board of Trade to deal with the collection of weather data at sea as a service to mariners. This was the forerunner of the modern Meteorological Office, all ship captains were tasked with collating data on the weather and computing it, with the use of tested instruments that were loaned for this purpose. Fifteen land stations were established to use the new telegraph to transmit to him daily reports of weather at set times leading to the first gale warning service and his warning service for shipping was initiated in February 1861, with the use of telegraph communications
12.
Oceanography
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Oceanography, also known as oceanology, is the study of the physical and the biological aspects of the ocean. Paleoceanography studies the history of the oceans in the geologic past, humans first acquired knowledge of the waves and currents of the seas and oceans in pre-historic times. Observations on tides were recorded by Aristotle and Strabo, early exploration of the oceans was primarily for cartography and mainly limited to its surfaces and of the animals that fishermen brought up in nets, though depth soundings by lead line were taken. Although Juan Ponce de León in 1513 first identified the Gulf Stream, Franklin measured water temperatures during several Atlantic crossings and correctly explained the Gulf Streams cause. Franklin and Timothy Folger printed the first map of the Gulf Stream in 1769-1770, information on the currents of the Pacific Ocean was gathered by explorers of the late 18th century, including James Cook and Louis Antoine de Bougainville. James Rennell wrote the first scientific textbooks on oceanography, detailing the current flows of the Atlantic, during a voyage around the Cape of Good Hope in 1777, he mapped the banks and currents at the Lagullas. He was also the first to understand the nature of the intermittent current near the Isles of Scilly, Robert FitzRoy published a four-volume report of the Beagles three voyages. In 1841–1842 Edward Forbes undertook dredging in the Aegean Sea that founded marine ecology, the first superintendent of the United States Naval Observatory, Matthew Fontaine Maury devoted his time to the study of marine meteorology, navigation, and charting prevailing winds and currents. His 1855 textbook Physical Geography of the Sea was one of the first comprehensive oceanography studies, many nations sent oceanographic observations to Maury at the Naval Observatory, where he and his colleagues evaluated the information and distributed the results worldwide. Despite all this, human knowledge of the oceans remained confined to the topmost few fathoms of the water, almost nothing was known of the ocean depths. The Royal Navys efforts to all of the worlds coastlines in the mid-19th century reinforced the vague idea that most of the ocean was very deep. As exploration ignited both popular and scientific interest in the regions and Africa, so too did the mysteries of the unexplored oceans. The seminal event in the founding of the science of oceanography was the 1872-76 Challenger expedition. As the first true oceanographic cruise, this laid the groundwork for an entire academic. In response to a recommendation from the Royal Society, The British Government announced in 1871 an expedition to explore worlds oceans, charles Wyville Thompson and Sir John Murray launched the Challenger expedition. The Challenger, leased from the Royal Navy, was modified for scientific work, under the scientific supervision of Thomson, Challenger travelled nearly 70,000 nautical miles surveying and exploring. On her journey circumnavigating the globe,492 deep sea soundings,133 bottom dredges,151 open water trawls and 263 serial water temperature observations were taken, around 4,700 new species of marine life were discovered. The result was the Report Of The Scientific Results of the Exploring Voyage of H. M. S, Murray, who supervised the publication, described the report as the greatest advance in the knowledge of our planet since the celebrated discoveries of the fifteenth and sixteenth centuries
