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Deming Lake
Deming Lake is a lake in Hubbard County and Clearwater County, Minnesota, in the United States. It is within Itasca State Park. History Deming Lake was initially named 'Danger Lake' by Peter Turnbull, a land surveyor and civil engineer from Canada, because of water "flooding the ice surface in winter at its south shore". It was renamed after Portius C. Deming, a state park official who was later the President of the Minneapolis Board of Park Commissioners. Natural History Deming Lake is a meromictic lake. It has a relative depth of 6.7%. This is consistent with other meromictic lakes, whose relative depths generally exceed 4%. Deming Lake is part of a tunnel valley drainage system within the Itasca Moraine consisting of three other lakes: Josephine Lake, Arco Lake, and Mary Lake. This system connects to the eastern arm of Lake Itasca. Deming Lake has a turbidity maximum that persists across the lake basin at 5 m depth attributed to filamentous cyanobacteria of the genus ''Pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Itasca State Park
Itasca State Park (pronounced eye-ta-ska) is a state park of Minnesota, United States, and contains the headwaters of the Mississippi River. The park spans of northern Minnesota, and is located about north of Park Rapids, Minnesota and from Bagley, Minnesota. The park is part of Minnesota's Pine Moraines and Outwash Plains Ecological Subsection and is contained within Clearwater County, Minnesota, Clearwater, Hubbard County, Minnesota, Hubbard, and Becker County, Minnesota, Becker counties. Itasca State Park was established by the Minnesota Legislature on April 20, 1891, making it the first of Minnesota's state parks and second oldest in the United States, behind Niagara Falls State Park. Henry Schoolcraft determined Lake Itasca as the river's source in 1832. It was named as a National Natural Landmark in 1965, and was added to the National Register of Historic Places in 1973. About 500,000 people visit Itasca State Park annually. History Approximately 7–8,000 years ago ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holocene
The Holocene ( ) is the current geological epoch. It began approximately 11,650 cal years Before Present (), after the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene has been identified with the current warm period, known as MIS 1. It is considered by some to be an interglacial period within the Pleistocene Epoch, called the Flandrian interglacial.Oxford University Press – Why Geography Matters: More Than Ever (book) – "Holocene Humanity" section https://books.google.com/books?id=7P0_sWIcBNsC The Holocene corresponds with the rapid proliferation, growth and impacts of the human species worldwide, including all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakes Of Minnesota
This is a list of lakes of Minnesota. Although promoted as the "Land of 10,000 Lakes", Minnesota has 11,842 lakes of or more. The 1968 state survey found 15,291 lake basins, of which 3,257 were dry. If all basins over 2.5 acres were counted, Minnesota would have 21,871 lakes. The prevalence of lakes has generated many repeat names. For example, there are more than 200 Mud Lakes, 150 Long Lakes, and 120 Rice Lakes. All but four of Minnesota's 87 counties (Mower, Olmsted, Pipestone and Rock) contain at least one natural lake. Minnesota's lakes provide 44,926 miles of shoreline, more than the combined lake (~32,000 mi) and coastal (3,427 mi) shorelines of California. Lakes whose coordinates are included below are visible in linked OSM map. Minnesota's lakes are cataloged by the state Department of Natural Resources with a unique DNR Division of Waters Lake Number, which is listed for a subset of lakes in the table below. See also *List of fishes of Minnesota *List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lakes In Minnesota
This is a list of lakes of Minnesota. Although promoted as the "Land of 10,000 Lakes", Minnesota has 11,842 lakes of or more. The 1968 state survey found 15,291 lake basins, of which 3,257 were dry. If all basins over 2.5 acres were counted, Minnesota would have 21,871 lakes. The prevalence of lakes has generated many repeat names. For example, there are more than 200 Mud Lakes, 150 Long Lakes, and 120 Rice Lakes. All but four of Minnesota's 87 counties (Mower, Olmsted, Pipestone and Rock) contain at least one natural lake. Minnesota's lakes provide 44,926 miles of shoreline, more than the combined lake (~32,000 mi) and coastal (3,427 mi) shorelines of California. Lakes whose coordinates are included below are visible in linked OSM map. Minnesota's lakes are cataloged by the state Department of Natural Resources with a unique DNR Division of Waters Lake Number, which is listed for a subset of lakes in the table below. See also *List of fishes of Minnesota *List ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deming Panorama , where the deputy station name is Takming University, a metro station of the Taipei Metro
{{disambig, geo ...
Deming may refer to: People * Deming (surname) * Deming (given name) Places United States * Deming, Indiana * Deming, New Mexico * Deming, Washington * Deming Lake, a lake in Minnesota Other uses * Deming circle, an iterative management method * Takming (德明), “Deming” in Cantonese pronunciation ** Takming (constituency) ** Takming University of Science and Technology, named in Sun Tak-ming (Sun Yat-sen’s genealogical name), a private university in Taipei, Taiwan ** Xihu metro station The Taipei Metro Xihu station is located in the Neihu District in Taipei, Taiwan. It is a station on Wenhu line and opened on 4 July 2009. Station overview This three-level, elevated station features an island platform, two exits, and a platf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oak Savanna
An oak savanna is a type of savanna—or lightly forested grassland—where oaks (''Quercus ''spp.) are the dominant trees. The terms "oakery" or "woodlands" are also used commonly, though the former is more prevalent when referencing the Mediterranean area. These savannas were maintained historically through wildfires set by lightning, humans, grazing, low precipitation, and/or poor soil. Although there are pockets of oak savanna almost anywhere in North America where oaks are present, there are three major oak savanna areas: 1) California, British Columbia, Washington and Oregon in the west; 2) Southwestern United States and northern Mexico; and 3) the prairie/forest border of the Midwestern United States. There are also small areas of oak savannas in other parts of the world. (See also Eastern savannas of the United States for information on pine savannas of the U.S. South.) Midwestern oak savannas The oak savannas of the Midwestern United States form a transition zone betw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prairie
Prairies are ecosystems considered part of the temperate grasslands, savannas, and shrublands biome by ecologists, based on similar temperate climates, moderate rainfall, and a composition of grasses, herbs, and shrubs, rather than trees, as the dominant vegetation type. Temperate grassland regions include the Pampas of Argentina, Brazil and Uruguay, and the steppe of Ukraine, Russia and Kazakhstan. Lands typically referred to as "prairie" tend to be in North America. The term encompasses the area referred to as the Geography of North America, Interior Lowlands of Canada, the United States, and Mexico, which includes all of the Great Plains as well as the wetter, hillier land to the east. In the U.S., the area is constituted by most or all of the states of North Dakota, South Dakota, Nebraska, Kansas, and Oklahoma, and sizable parts of the states of Montana, Wyoming, Colorado, New Mexico, Texas, Missouri, Iowa, Illinois, Indiana, Wisconsin, and western and southern Minnesota. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollen Core
A pollen core is a core sample of a medium containing a stratigraphic sequence of pollen. Analysis of the type and frequency of the pollen in each layer is used to study changes in climate or land use using regional vegetation as a proxy. This analysis is conceptually comparable to the study of ice cores. Methods Cores are obtained from deposits where pollen is likely to have been trapped. Cores are generally obtained from lacustrine sediments and peat bogs although soil sediments may also be obtained. Degradation of the pollen exine and bioturbation may reduce the quality of the pollen grains and stratigraphy of the core so researchers frequently select locations where the sediments are under anaerobic conditions. The cores are then subjected to pollen analysis by palynologists who are able to infer the proportions of major plant types from the concentrations of different pollen types found in the cores. Coring Equipment There are a number of tools used for coring, often wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Irradiance
Solar irradiance is the power per unit area (surface power density) received from the Sun in the form of electromagnetic radiation in the wavelength range of the measuring instrument. Solar irradiance is measured in watts per square metre (W/m2) in SI units. Solar irradiance is often integrated over a given time period in order to report the radiant energy emitted into the surrounding environment (joule per square metre, J/m2) during that time period. This integrated solar irradiance is called solar irradiation, solar exposure, solar insolation, or insolation. Irradiance may be measured in space or at the Earth's surface after atmospheric absorption and scattering. Irradiance in space is a function of distance from the Sun, the solar cycle, and cross-cycle changes.Michael Boxwell, ''Solar Electricity Handbook: A Simple, Practical Guide to Solar Energy'' (2012), p. 41–42. Irradiance on the Earth's surface additionally depends on the tilt of the measuring surface, the hei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planktothrix
''Planktothrix'' is a diverse genus of filamentous cyanobacteria observed to amass in algal blooms in water ecosystems across the globe. Like all Oscillatoriales, ''Planktothrix'' species have no heterocysts and no akinetes. Planktothrix are unique because they have trichomes and contain gas vacuoles unlike typical planktonic organisms. Previously, some species of the taxon were grouped within the genus ''Oscillatoria,'' but recent work has defined Planktothrix as its own genus. A tremendous body of work on ''Planktothrix'' ecology and physiology has been done by Anthony E. Walsby, and the 55.6 kb microcystin synthetase gene which gives these organisms the ability to synthesize toxins has been sequenced. ''P. agardhii'' is an example of a type species of the genus. ''P. agardhii'' and ''P. rubescens'' are commonly observed in lakes of the Northern Hemisphere where they are known producers of potent hepatotoxins called microcystins. Habitats and niches Both ''P. agardhii'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hubbard County, Minnesota
Hubbard County is a county in the northwestern part of the U.S. state of Minnesota. As of the 2020 census, the population was 21,344. Its county seat is Park Rapids. Part of the Leech Lake Indian Reservation is in the county. History The county was created on February 26, 1883, with territory partitioned from Cass County. It was named for Lucius Frederick Hubbard, a prominent Territory editor, Civil War participant, and businessman who was governor of Minnesota from 1882 to 1887. The county's boundaries have remained unchanged since its creation. The new county's courthouse was destroyed by fire around 1890, but the public records were salvaged. Geography The county's terrain is hilly, largely wooded, and dotted with lakes and ponds. It generally slopes to the east, with the northern part sloping to the north and the southern part sloping to the south. Its highest point is near the lower middle of its western border, at 1,549' (472m) ASL. The county has an area of , of whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Itasca
Lake Itasca is a small glacial lake, approximately in area. Located in southeastern Clearwater County, in the Headwaters area of north central Minnesota, it is notable for being the headwater of the Mississippi River. The lake is in Itasca State Park. It has an average depth of and is above sea level. The Ojibwe name for "Lake Itasca" is ''Omashkoozo-zaaga'igan'' (Elk Lake); this was changed by Henry Schoolcraft to "Itasca", coined from a combination of the Latin words ''veritas caput'' ("true head f the Mississippi). It is one of several examples of pseudo-Indian place names created by Schoolcraft. Source of the Mississippi River It is the primary source of the Mississippi River which flows 2,340 mi (3,770 km) to the Gulf of Mexico. There are several tributaries that flow (most or all of the year) into the lake, one of which, by most modern definitions, as with the Nile River and Amazon River, would be considered the actual source, though less dramatic than the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
