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South Branch Kishwaukee River
The South Branch Kishwaukee River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed May 19, 2011 tributary of the Kishwaukee River in northern Illinois. The South Branch is the main branch of the Kishwaukee River, joining it above its confluence with the Rock River (Mississippi River), Rock River. The South Branch flows through DeKalb County, Illinois, DeKalb County; in 2007 flooding along the tributary inundated areas of DeKalb County and Sycamore, Illinois. Another stream, also named South Branch Kishwaukee River, flows through Kane County, Illinois, Kane County and McHenry County, Illinois, McHenry County, joining the main stem of the Kishwaukee east of Marengo, Illinois, Marengo. Course The South Branch Kishwaukee River, a major tributary of the Kishwaukee River,James, L. Allan. ''Management and Restoration of Fluvial Systems with Broad Historical Changes and Human Impacts'',Google Books link, ''Geological Society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kishwaukee River State Fish And Wildlife Area
Kishwaukee River State Fish and Wildlife Area is an List of Illinois state parks, Illinois state park on in DeKalb County, Illinois, DeKalb County, Illinois, United States. History The land for the Kishwaukee River State Fish and Wildlife Area was acquired by the state of Illinois in 2002. That year, the state purchased of land along the South Branch Kishwaukee River in DeKalb County, Illinois, DeKalb County. While the state acquired the parcel south of the riverbank, DeKalb County was working on acquiring approximately north of the river. The state purchase was facilitated by U.S. dollar, US$2.68 million from the Illinois Open Land Trust.Governor Ryan Announces Open Land Trust Acquisition in DeKalb County , Press release, January 24, 2002, Governor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shabbona, Illinois
Shabbona () is a village in DeKalb County, Illinois, United States. The population was 925 at the 2010 census, down from 929 at the 2000 census. History The village takes its name from the Potawatomi chief and peacemaker Shabbona. Chief Shabbona traveled through the Fox Valley warning the white people about the approaching war Black Hawk was going to wage. He was hailed as the "Whiteman's Friend". Geography Shabbona is located at (41.767381, -88.874677). Shabbona Lake State Park is located nearby. According to the 2010 census, Shabbona has a total area of , of which (or 99.88%) is land and (or 0.12%) is water. Demographics As of the census of 2000, there were 929 people, 329 households, and 224 families residing in the village. The population density was . There were 347 housing units at an average density of . The racial makeup of the village was 98.49% White, 0.22% African American, 0.11% Native American, 0.65% from other races, and 0.54% from two or more races. Hisp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federal Disaster Area
A disaster area is a region or a locale that has been heavily damaged by either natural, technological or social hazards. Disaster areas affect the population living in the community by dramatic increase in expense, loss of energy, food and services; and finally increase the risk of disease for citizens. An area that has been struck with a natural, technological or sociological hazard that opens the affected area for national or international aid. Natural hazard A natural hazard is a negative process of phenomena created naturally (tornadoes, hurricanes, tsunamis, floods, earthquakes) that will affect people or the environment. Tornadoes Tornadoes are narrow, aggressively rotating columns of air that come from the base of a thunderstorm, and are the most violent of storms. Tornadoes are usually hard to see unless they form a condensations funnel, or loft a significant amount of dust and debris. Tornadoes take place in several parts of the world, such as Australia, Europe, Africa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flash Flooding
A flash flood is a rapid flooding of low-lying areas: washes, rivers, dry lakes and depressions. It may be caused by heavy rain associated with a severe thunderstorm, hurricane, or tropical storm, or by meltwater from ice or snow flowing over ice sheets or snowfields. Flash floods may also occur after the collapse of a natural ice or debris dam, or a human structure such as a man-made dam, as occurred before the Johnstown Flood of 1889. Flash floods are distinguished from regular floods by having a timescale of fewer than six hours between rainfall and the onset of flooding. Flash floods are a significant hazard, causing more fatalities in the U.S. in an average year than lightning, tornadoes, or hurricanes. Flash floods can also deposit large quantities of sediments on floodplains and can be destructive of vegetation cover not adapted to frequent flood conditions. Causes Flash floods most often occur in dry areas that have recently received precipitation, but they may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood Stage
Flood stage is the water level or stage at which the surface of a body of water has risen to a sufficient level to cause sufficient inundation of areas that are not normally covered by water, causing an inconvenience or a threat to life and property. When a body of water rises to this level, it is considered a flood event. Flood stage does not apply to areal flooding. As areal flooding occurs, by definition, over areas not normally covered by water, the presence of any water at all constitutes a flood. Usually, moderate and major stages are not defined for areal floodplains. Definition Flood stage is the water level, as read by a stream gauge or tide gauge, for a body of water at a particular location, measured from the level at which a body of water threatens lives, property, commerce, or travel. The term "at flood stage" is commonly used to describe the point at which this occurs. "Gauge height" (also referred to as "stream stage", "stage of the ody of water, or simply "stage" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Point Source Pollution
A point source of pollution is a single identifiable source of air, water, thermal, noise or light pollution. A point source has negligible extent, distinguishing it from other pollution source geometries (such as nonpoint source or area source). The sources are called ''point sources'' because in mathematical modeling, they can be approximated as a mathematical point to simplify analysis. Pollution point sources are identical to other physics, engineering, optics, and chemistry point sources and include: * Air pollution from an industrial source (rather than an airport or a road, considered a line source, or a forest fire, which is considered an area source, or volume source) *Water pollution from factories, power plants, municipal sewage treatment plants and some farms (''see'' concentrated animal feeding operation). The U.S. Clean Water Act also defines municipal separate storm sewer systems and industrial stormwater discharges (such as construction sites) as point sources. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DeKalb, Illinois
DeKalb ( ) is a city in DeKalb County, Illinois, United States. The population was 43,862 according to the 2010 census, up from 39,018 at the 2000 census. The city is named after decorated Franconian- French war hero Johann de Kalb, who died during the American Revolutionary War. Founded in 1856, DeKalb became important in the development and manufacture of barbed wire, especially for agriculture and raising livestock. While agricultural-related industries remain a facet of the city, along with health and services, the city's largest employer in the 21st century is Northern Illinois University, founded in 1895. DeKalb is about from downtown Chicago. History DeKalb was originally called Huntley's Grove, and under the latter name was platted in 1853. The name is for Baron Johann de Kalb, a major general in the American Revolutionary War. The first church in DeKalb was organized in 1844. Beginning in 1846, a stage coach traveled from Chicago through DeKalb and Dixon to Galena. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discharge (hydrology)
In hydrology, discharge is the volumetric flow rate of water that is transported through a given cross-sectional area. It includes any suspended solids (e.g. sediment), dissolved chemicals (e.g. CaCO3(aq)), or biologic material (e.g. diatoms) in addition to the water itself. Terms may vary between disciplines. For example, a fluvial hydrologist studying natural river systems may define discharge as streamflow, whereas an engineer operating a reservoir system may equate it with outflow, contrasted with inflow. Theory and calculation A discharge is a measure of the quantity of any fluid flow over unit time. The quantity may be either volume or mass. Thus the water discharge of a tap (faucet) can be measured with a measuring jug and a stopwatch. Here the discharge might be 1 litre per 15 seconds, equivalent to 67 ml/second or 4 litres/minute. This is an average measure. For measuring the discharge of a river we need a different method and the most common is the 'area-velocity' method. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravel Pit
A gravel pit is an open-pit mine for the extraction of gravel. Gravel pits often lie in river valleys where the water table is high, so they may naturally fill with water to form ponds or lakes. Old, abandoned gravel pits are normally used either as nature reserves, or as amenity areas for water sports, landfills and walking. In Germany former gravel or sand pits that have filled up with water are known as ''Baggersee'' ("power dug lake") and popular for recreational use. In addition, many gravel pits in the United Kingdom have been stocked with freshwater fish such as the common carp to create coarse fishing locations. Gravel and sand are mined for concrete, construction aggregate and other industrial mineral uses. Gallery File:Aerial fg103 DSC 1469 Kiesgrube bei Geinsheim.JPG, A gravel pit in Germany File:Naturalizedgravelpit.JPG, A naturalized gravel pit, now Silver Springs Park in East St. Paul, Manitoba. Limestone processing plant, Tennessee.jpg, Tennessee quarry Image: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moraine
A moraine is any accumulation of unconsolidated debris (regolith and rock), sometimes referred to as glacial till, that occurs in both currently and formerly glaciated regions, and that has been previously carried along by a glacier or ice sheet. It may consist of partly rounded particles ranging in size from boulders (in which case it is often referred to as boulder clay) down to gravel and sand, in a groundmass of finely-divided clayey material sometimes called glacial flour. Lateral moraines are those formed at the side of the ice flow, and terminal moraines were formed at the foot, marking the maximum advance of the glacier. Other types of moraine include ground moraines (till-covered areas forming sheets on flat or irregular topography) and medial moraines (moraines formed where two glaciers meet). Etymology The word ''moraine'' is borrowed from French , which in turn is derived from the Savoyard Italian ("mound of earth"). ''Morena'' in this case was derived from Provenà ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Lake
An ancient lake is a lake that has consistently carried water for more than one million years. Many have existed for more than 2.6 million years, the full Quaternary period. Ancient lakes continue to persist due to plate tectonics in an active rift zone. This active rift zone creates lakes that are extremely deep and difficult to naturally fill with sediment. Due to the prolonged life of ancient lakes, they serve as models for isolated evolutionary traits and speciation. Most of the world's bodies of water are less than 18,000 years old. There are only 20 ancient lakes over 1 million years old. Lake Baikal is often considered the oldest, as clear evidence shows that it is 25–30 million years old. Lake Zaysan may be even older, of Cretaceous origin and at least 66 million years old (most likely around 70 million years), but its exact age is controversial and labelled with some uncertainty. Another contender for oldest is Lake Maracaibo, estimated to be 20–36 million years o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Bed
A stream bed or streambed is the bottom of a stream or river (bathymetry) or the physical confine of the normal water flow (channel). The lateral confines or channel margins are known as the stream banks or river banks, during all but flood stage. Under certain conditions a river can branch from one stream bed to multiple stream beds. A flood occurs when a stream overflows its banks and flows onto its flood plain. As a general rule, the bed is the part of the channel up to the normal water line, and the banks are that part above the normal water line. However, because water flow varies, this differentiation is subject to local interpretation. Usually, the bed is kept clear of terrestrial vegetation, whereas the banks are subjected to water flow only during unusual or perhaps infrequent high water stages and therefore might support vegetation some or much of the time. The nature of any stream bed is always a function of the flow dynamics and the local geologic materials, influ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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