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Mearim River
The Mearim River is a river in Maranhão state of northern Brazil. The river originates in the southern part of Maranhão, and drains north into the Baía de São Marcos, an estuary that also receives the Pindaré and Grajaú rivers, which are sometimes considered tributaries of the Mearim. The lower Mearim is known for its pororoca, or tidal bore. The Mearim is approximately 800 kilometers long, flowing through the marshlands of the Atlantic Coastal Plain. It meets the Atlantic Ocean at the Sao Marcos Bay, where it forms a common estuary with another river, Pindare. The Mearim's primary source of water is rain. The river's upper and middle courses are characterized by rapids. Only the lower sections of the Mearim are suitable for navigation. The river defines the southern boundary of the Tocantins–Araguaia–Maranhão moist forests The Tocantins–Araguaia–Maranhão moist forests (NT0170), also called the Tocantins/Pindaré moist forests, is an ecoregion in the north of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baía De São Marcos
The Baía de São Marcos is a bay of the Atlantic Ocean in Maranhão state of northeastern Brazil. The bay is an estuary approximately long and up to wide. It receives several rivers, including the Grajaú, Mearim, and Pindaré. The Mearim is known for its pororoca, or tidal bore Tidal is the adjectival form of tide. Tidal may also refer to: * ''Tidal'' (album), a 1996 album by Fiona Apple * Tidal (king), a king involved in the Battle of the Vale of Siddim * TidalCycles, a live coding environment for music * Tidal (serv .... São Luís Island, also known as Maranhão Island, separates the Baía de São Marcos from the Baía de São Jose just to the east. São Luís Island is home to São Luís, Maranhão's capital. Estuaries of Brazil Landforms of Maranhão Bays of Brazil {{Maranhão-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 States of Brazil, states and the Federal District (Brazil), Federal District. It is the largest country to have Portuguese language, Portuguese as an List of territorial entities where Portuguese is an official language, official language and the only one in the Americas; one of the most Multiculturalism, multicultural and ethnically diverse nations, due to over a century of mass Immigration to Brazil, immigration from around the world; and the most populous Catholic Church by country, Roman Catholic-majority country. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maranhão
Maranhão () is a state in Brazil. Located in the country's Northeast Region, it has a population of about 7 million and an area of . Clockwise from north, it borders on the Atlantic Ocean for 2,243 km and the states of Piauí, Tocantins and Pará. The people of Maranhão have a distinctive accent inside the common Northeastern Brazilian dialect. Maranhão is described in books such as '' The Land of the Palm Trees'' by Gonçalves Dias and ''Casa de Pensão'' by Aluísio Azevedo. The dunes of Lençóis are an important area of environmental preservation. Also of interest is the state capital of São Luís, designated a Unesco World Heritage Site. Another important conservation area is the Parnaíba River delta, between the states of Maranhão and Piauí, with its lagoons, desert dunes and deserted beaches or islands, such as the Caju island, which shelters rare birds. Geography The northern portion of the state is a heavily forested plain traversed by numerous rivers, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as bays, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pindaré River
The Pindaré River is a river in Maranhão state of north-central Brazil. The Pindaré rises in the low hills which separate its basin from that of the Tocantins River to the south. In its lower reaches it is called the Pindaré-Mirim. It is a left tributary of the Mearim River, which it joins not far from that river's mouth in the Baía de São Marcos. The Serra do Tiracambu lies to the west, and separates the basin of the Pindaré from that of the Gurupí River. Part of the river's basin lies in the Gurupi Biological Reserve, a full protected conservation unit created in 1988. Average annual rainfall is . Temperatures range from with an average of . The Pindaré basin is home to tropical moist broadleaf forest, and the river divides the Tocantins–Araguaia–Maranhão moist forests to the west from the Maranhão Babaçu forests The Maranhão Babaçu forests is a tropical moist broadleaf forest ecoregion of north-central Brazil. The forests form a transition between th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grajaú River (Maranhão)
The Grajaú River is a river of Maranhão state indo 09p9 northeastern Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area .... It is a tributary of the Mearim River. See also * List of rivers of Maranhão ReferencesBrazilian Ministry of Transport Rivers of Maranhão {{Maranhão-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pororoca
The Pororoca (, ) is a tidal bore, with waves up to high that travel as much as inland upstream on the Amazon River and adjacent rivers. Its name might come from the indigenous Tupi language, where it could translate into "great roar". It could be also a Portuguese version of the term ''poroc-poroc'', which in an indigenous' language was a way of expressing the act of destroying everything. It could be also a ''portmanteau'' of the words ''poroc'' (to take out, to tear away) and ''oca'' (house). It occurs at the mouth of the river where its waters meet the Atlantic Ocean. Explanation During new and full moons, when the ocean tide is highest, water flows in from the Atlantic, rather than the other way around. The Amazon's flow reverses, the distance of which depends largely on the rainwater-generated outflow of the Amazon, and a water bulge speeds upstream often with great force, forming a tidal bore with an audible noise. The tidal phenomenon is best observed on biannual equinox ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tidal Bore
{{disambiguation ...
Tidal is the adjectival form of tide. Tidal may also refer to: * ''Tidal'' (album), a 1996 album by Fiona Apple * Tidal (king), a king involved in the Battle of the Vale of Siddim * TidalCycles, a live coding environment for music * Tidal (service), a music streaming service * Tidal, Manitoba, Canada ** Tidal station, Tidal, Manitoba See also * Tidal flow (traffic), the flow of traffic thought of as an analogy with the flow of tides * Tidal force, a secondary effect of the force of gravity and is responsible for the tides * Tide (other) A tide is the rise and fall of a sea level caused by the Moon's gravity and other factors. Tide may also refer to: Media * ''The Tide'' (Nigeria), a newspaper * ''Tide'' (TV series), 2019 Irish/Welsh/Scottish documentary series * WTKN, a radio s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tocantins–Araguaia–Maranhão Moist Forests
The Tocantins–Araguaia–Maranhão moist forests (NT0170), also called the Tocantins/Pindaré moist forests, is an ecoregion in the north of Brazil to the south of the mouth of the Amazon River. It is part of the Amazon biome. The ecoregion contains the city of Belém, capital of the state of Pará. It is the most developed part of the Amazon region, and is one of the most severely degraded natural habitats of the region. Location The Tocantins–Araguaia–Maranhão moist forests ecoregion is the most eastern of the Amazon region. It covers the east of the state of Pará and the north of Maranhão. The main cities are Belém, Paragominas and Bragança. Its western border is the Tocantins River, a tributary of the Amazon River. It is bordered by the mouth of the Amazon to the northwest and the Atlantic Ocean to the northeast. The southern border is defined by the Mearim River. To the east it is bounded by the Pindaré River and the Baía de São Marcos. The Marajó várze ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivers Of Maranhão
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. Rivers are part of the water cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, spring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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