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Botn (Trøndelag)
Botn (nicknamed: ''Rissa-Botn'') is an inland fjord in Indre Fosen Municipality in Trøndelag county, Norway. It flows through a short, small river into the Sundsbukta, a small bay off the Trondheimsfjorden. The village of Årnset lies on the north shore of Botn. Hydrography and water quality The extraordinarily shallow, narrow, and long inlet restrains the water exchange severely. The daily tidal amplitude is in the order of centimetres, about 1/10 of the tidal amplitude of the supplying Trondheimsfjord. The shallow river connecting Botn to the Trondheimsfjord blocks out more than half of the tidal wave, making the moon-phase driven tidal flood height cycles the primal driving force for the internal water level, with an abnormally small neap flood effect (zero has been observed during lowest neap tides and meteorologically suppressed sea level). In addition, the inlet is connected to a secluded bay sheltered from the strong tidal currents in the main fjord. This leads to accu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indre Fosen Municipality
Indre Fosen is a municipality in Trøndelag county, Norway. It is located in the traditional district of Fosen. The administrative centre of the municipality is the village of Årnset. Other villages in Indre Fosen include Askjem, Dalbygda, Hasselvika, Husbysjøen, Leira, Leksvik, Råkvåg, Rørvika, Seter, Stadsbygd, Sørfjorden, Verrabotn, and Vanvikan. The Norwegian County Road 755 runs through the municipality. The municipality is the 102nd largest by area out of the 357 municipalities in Norway. Indre Fosen Municipality is the 113th most populous municipality in Norway with a population of 10,023. The municipality's population density is and its population has decreased by 1.7% over the previous 10-year period. Economy: in January 2024, a shipyard that employed 132, went bankrupt. General information The municipality was established on 1 January 2018, the same day that Trøndelag county was established. Indre Fosen Municipality straddles the former county ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal Current
Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables can be used for any given locale to find the predicted times and amplitude (or " tidal range"). The predictions are influenced by many factors including the alignment of the Sun and Moon, the phase and amplitude of the tide (pattern of tides in the deep ocean), the amphidromic systems of the oceans, and the shape of the coastline and near-shore bathymetry (see '' Timing''). They are however only predictions, the actual time and height of the tide is affected by wind and atmospheric pressure. Many shorelines experience semi-diurnal tides—two nearly equal high and low tides each day. Other locations have a diurnal tide—one high and low tide each day. A "mixed tide"—two uneven magnitude tides a day—is a third regular category. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lakes In Norway
This is a list of lakes and reservoirs in Norway, sorted by Counties of Norway, county. For the geography and history of lakes in that country, see Lakes in Norway, including: *Lakes in Norway#Largest lakes, List of largest lakes in Norway *Lakes in Norway#Deepest lakes, List of deepest lakes in Norway Akershus *Bjørkelangen (lake), Bjørkelangen *Bogstadvannet *Dælivannet *Engervannet *Hallangen *Hurdalsjøen *Lyseren *Mangen *Mjøsa *Øgderen *Østernvann *Øyangen (Gran) *Øyeren *Rødenessjøen *Setten Aust-Agder *Åraksfjorden *Blåsjø *Botnsvatnet *Botsvatn *Breidvatn *Byglandsfjorden *Fisstøylvatnet *Grøssæ *Gyvatn *Hartevatnet *Herefossfjorden *Holmavatnet (Vinje), Holmavatnet *Holmevatnet *Homstølvatnet *Hovatn *Høvringsvatnet *Kilefjorden *Kolsvatnet *Kvifjorden *Longerakvatnet *Måvatn *Myklevatnet *Nasvatn *Nelaug (lake), Nelaug *Nesvatn *Nystølfjorden *Ogge *Ormsavatnet *Østre Grimevann *Øyarvatnet *Ramvatn *Reinevatn *Rore (lake), Rore *Rosskreppfj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsunami
A tsunami ( ; from , ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and underwater explosions (including detonations, landslides, glacier calvings, meteorite impacts and other disturbances) above or below water all have the potential to generate a tsunami. Unlike normal ocean waves, which are generated by wind, or tides, which are in turn generated by the gravitational pull of the Moon and the Sun, a tsunami is generated by the displacement of water from a large event. Tsunami waves do not resemble normal undersea currents or sea waves because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide. For this reason, it is often referred to as a tidal wave, although this usage is not favoured by the scientific community because it might give the false impression of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
8 Mm Film
8 mm film is a motion picture film format in which the film strip is wide. It exists in two main versions – the original standard 8 mm film, also known as regular 8 mm, and Super 8. Although both standard 8 mm and Super 8 are 8 mm wide, Super 8 has a larger image area because of its smaller and more widely spaced perforations. There are also two other varieties of Super 8 – Single 8 mm and Straight-8 – that require different cameras but produce a final film with the same dimensions. Standard 8 The standard 8 mm (also known as regular 8 or double 8) film format was developed by the Eastman Kodak company during the Great Depression and released to the market in 1932 to create a home movie format that was less expensive than 16 mm. Double 8 spools actually contain a 16 mm film with twice as many perforations along each edge as normal 16 mm film; on its first pass through the camera, the film is exposed only al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quick Clay
Quick clay, also known as Leda clay and Champlain Sea clay in Canada, is any of several distinctively sensitive glaciomarine clays found in Canada, Norway, Russia, Sweden, Finland, the United States, and other locations around the world. The clay is so unstable that when a mass of quick clay is subjected to sufficient stress, the material behavior may drastically change from that of a particulate material to that of a watery fluid. Landslides occur because of the sudden soil liquefaction caused by external solicitations such as vibrations induced by an earthquake, or massive rainfalls. Quick clay main deposits Quick clay is found only in countries close to the north pole, such as Russia; Canada; Norway; Sweden; and Finland; and in Alaska (United States); since they were glaciated during the Pleistocene epoch. In Canada, the clay is associated primarily with the Pleistocene-era Champlain Sea, in the modern Ottawa Valley, the St. Lawrence Valley, and the Saguenay River regions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norwegian Academy Of Science And Letters
The Norwegian Academy of Science and Letters (, DNVA) is a learned society based in Oslo, Norway. Its purpose is to support the advancement of science and scholarship in Norway. History The Royal Frederick University in Christiania was established in 1811. The idea of a learned society in Christiania surfaced for the first time in 1841. The city of Trondhjem had no university, but had a learned society, the Royal Norwegian Society of Sciences and Letters, established in 1760. The purpose of a learned society in Christiania was to support scientific studies and aid publication of academic papers. The idea of the Humboldt-inspired university, where independent research stood strong, had overtaken the instrumental view of a university as primarily a means to produce civil servants. The city already had societies for specific professions, for instance the Norwegian Medical Society, which was founded in 1833. However, these societies were open to both academics within medicine as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rissa Municipality
Rissa is a List of former municipalities of Norway, former municipality in the old Sør-Trøndelag Counties of Norway, county in Norway in the Fosen Districts of Norway, region. The municipality existed from 1860 until its dissolution on 1 January 2018 when it became part of the newly created Indre Fosen Municipality in Trøndelag county. The administrative centre of the municipality was the village of Årnset. Other villages in the municipality included Askjem, Hasselvika, Husbysjøen, Rørvika, Trøndelag, Rørvika, Råkvåg, Sørfjorden, Indre Fosen, Sørfjorden, and Stadsbygd. Prior to its dissolution in 2018, the municipality was the 179th largest by area out of the then 426 municipalities in Norway. Rissa Municipality was the 158th most populous municipality in Norway with a population of 6,628. The municipality's population density was and its population had increased by 4.1% over the last decade. General information Municipal history The former municipality of ''Rissen' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Algal Bloom
An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in fresh water or marine water systems. It is often recognized by the discoloration in the water from the algae's pigments. The term ''algae'' encompasses many types of aquatic photosynthetic organisms, both macroscopic multicellular organisms like seaweed and microscopic unicellular organisms like cyanobacteria. ''Algal bloom'' commonly refers to the rapid growth of microscopic unicellular algae, not macroscopic algae. An example of a macroscopic algal bloom is a kelp forest. Algal blooms are the result of a nutrient, like nitrogen or phosphorus from various sources (for example fertilizer runoff or other forms of nutrient pollution), entering the aquatic system and causing excessive growth of algae. An algal bloom affects the whole ecosystem. Consequences range from benign effects, such as feeding of higher trophic levels, to more harmful effects like blocking sunlight from reaching ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecological Crisis
An ecological or environmental crisis occurs when changes to the environment of a species or population destabilizes its continued survival. Some of the important causes include: * Degradation of an abiotic ecological factor (for example, increase of temperature, less significant rainfalls) * Increased pressures from predation * Rise in the number of individuals (i.e. overpopulation) The evolutionary theory of punctuated equilibrium sees infrequent ecological crises as a potential driver of rapid evolution. Because of the impact of humans on the natural environment in the recent geological period, the term ecological crisis is often applied to environmental issues caused by human civilizations such as: the climate crisis, biodiversity loss and plastic pollution which have emerged as major global challenges during the first few decades of the 21st century. Examples Crises caused by abiotic factors Climate change is starting to have major impacts on ecosystems. With gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutrophication
Eutrophication is a general term describing a process in which nutrients accumulate in a body of water, resulting in an increased growth of organisms that may deplete the oxygen in the water; ie. the process of too many plants growing on the surface of a river, lake, etc., often because chemicals that are used to help crops grow have been carried there by rain. Eutrophication may occur naturally or as a result of human actions. Manmade, or cultural, eutrophication occurs when sewage, Industrial wastewater treatment, industrial wastewater, fertilizer runoff, and other nutrient sources are released into the environment. Such nutrient pollution usually causes algal blooms and bacterial growth, resulting in the depletion of dissolved oxygen in water and causing substantial environmental degradation. Many policies have been introduced to combat eutrophication, including the United Nations Development Program (UNDP)'s sustainability development goals. Approaches for prevention and re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
