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Surficial Aquifer
Surficial aquifers are shallow aquifers typically less than thick, but larger surficial aquifers of about have been mapped. They mostly consist of unconsolidated sand enclosed by layers of limestone, sandstone or clay and the water is commonly extracted for urban use. The aquifers are replenished by streams and from precipitation and can vary in volume considerably as the water table fluctuates. Being shallow, they are susceptible to contamination by fuel spills, industrial discharge, landfills, and saltwater. Parts of southeastern United States are dependent on surficial aquifers for their water supplies. Composition Surficial aquifers system consists mostly of beds of unconsolidated sand, cavity-riddled limestone and shells, sandstone, sand, and clay sand with minor clay or silt from the Pliocene to Holocene periods. In most cases the flow system is undivided, though in places, clay beds are sufficiently thick and continuous to divide the system into two or three aquifer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floridan Aquifer
The Floridan aquifer system, composed of the Upper and Lower Floridan aquifers, is a sequence of Paleogene carbonate rock which spans an area of about in the southeastern United States. It underlies the entire state of Florida and parts of Alabama, Georgia, Mississippi, and South Carolina. The Floridan aquifer system is one of the world's most productive aquifers and supplies drinking water for nearly 10 million people.Marella, R.L., and Berndt, M.P., 2005, Water withdrawals and trends from the Floridan aquifer system in the southeastern United States, 1950-2000: U.S. Geological Survey Circular 1278, 20 p., https://pubs.er.usgs.gov/publication/cir1278. According to the United States Geological Survey, total withdrawals from the Floridan aquifer system in 2000 were ranked 5th highest of all principal aquifers in the nation at 3,640 million gallons per day (Mgal/d) (). Of the total, 49% (1,949 Mgal/d; ) was used for irrigation, 33% (1,329 Mgal/d; ) was used for public water supply ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sand And Gravel Aquifer
Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is usually defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass. The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz. Calcium carbonate is the second most common type of sand. One such example of this is aragonite, which has been created over the past 500million years by various forms of life, such as coral and shellfish. It is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years, as in the Caribbean. Somewhat more rarely, sand may be composed of ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollutants
A pollutant or novel entity is a substance or energy introduced into the environment that has undesired effect, or adversely affects the usefulness of a resource. These can be both naturally forming (i.e. minerals or extracted compounds like oil) or anthropogenic in origin (i.e. manufactured materials or byproducts). Pollutants result in environmental pollution or become of public health concern when they reach a concentration high enough to have significant negative impacts. A pollutant may cause long- or short-term damage by changing the growth rate of plant or animal species, or by interfering with resources used by humans, human health or wellbeing, or property values. Some pollutants are biodegradable and therefore will not persist in the environment in a long term. However, the degradation products of some pollutants are themselves pollutants such as DDE and DDD produced from the degradation of DDT. Pollution has widespread negative impact on the environment. When ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monroe County, Florida
Monroe County is the southernmost county of the state of Florida. As of the 2020 census, the population was 82,874. Its county seat is Key West. Monroe County includes the islands of the Florida Keys and comprises the Key West-Key Largo Micropolitan Statistical Area. Over 99.9% of the county's population lives on the Florida Keys. The mainland, which is part of the Everglades, comprises 87% of the county's land area and is virtually uninhabited with only 17 people recorded in the 2020 census. History Monroe County was created in 1823. It was named for James Monroe, the fifth president of the United States from 1817 to 1825. Geography According to the U.S. Census Bureau, the county has a total area of , of which (26.3%) is land and (73.7%) is water. It is the largest county in Florida by total area. More than 99.9 percent of the Monroe County population lives in the island chain known as the Florida Keys. Two thirds of the large area in what local residents call "mainl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palm Beach County, Florida
Palm Beach County is a county in the southeastern part of Florida, located in the Miami metropolitan area. It is Florida's third-most populous county after Miami-Dade County, Florida, Miami-Dade County and Broward County, Florida, Broward County and the List of the most populous counties in the United States, 24th-most populous in the United States, with 1,492,191 residents as of the 2020 United States census, 2020 census. Its county seat and largest city is West Palm Beach, Florida, West Palm Beach, which had a population of 117,415 as of 2020. Named after one of its oldest settlements, Palm Beach, Florida, Palm Beach, the county was established in 1909, after being split from Miami-Dade County. The county's modern-day boundaries were established in 1963. Palm Beach County is one of the three counties that make up the Miami metropolitan area, which was home to 6.14 million people in 2020. The area has been increasing in population since the late 19th century, with the incorporat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broward County, Florida
Broward County ( ) is a County (United States), county in Florida, United States, located in the Miami metropolitan area. It is Florida's second-most populous county after Miami-Dade County, Florida, Miami-Dade County and the List of the most populous counties in the United States, 17th-most populous in the United States, with 1,944,375 residents as of the 2020 United States census, 2020 census. Its county seat and most populous city is Fort Lauderdale, Florida, Fort Lauderdale, which had a population of 182,760 as of 2020. The county is part of the South Florida region of the state. Broward County is one of the three counties that make up the Miami metropolitan area, which is home to 6.14 million people as of 2020. It is also one of the most ethnically diverse counties in the entire country. As of 2022, Broward County has a gross domestic product of $124.8 billion, the second-largest GDP of Florida's 67 counties and the List of US counties by GDP, 25th-largest for the nation's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dade County, Florida
Miami-Dade County () is a county located in the southeastern part of the U.S. state of Florida. The county had a population of 2,701,767 as of the 2020 census, making it the most populous county in Florida and the seventh-most-populous county in the United States. It is Florida's third largest county in terms of land area with . The county seat is Miami, the core of the nation's ninth-largest and world's 65th-largest metropolitan area with a 2020 population of 6.138 million people, exceeding the population of 31 of the nation's 50 states as of 2022. As of 2022, Miami-Dade County has a gross domestic product of $184.5 billion, making the county's GDP the largest for any county in the State of Florida and the 14th-largest for the nation's 3,033 counties. The county is home to the Port of Miami on Biscayne Bay, the world's largest passenger port with a world record 5.5 million passengers in 2018, and Miami International Airport, the third largest U.S. airport for internati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biscayne Aquifer
The Biscayne Aquifer, named after Biscayne Bay, is a surficial aquifer. It is a shallow layer of highly Permeability (earth sciences), permeable limestone under a portion of South Florida. The area it underlies includes Broward County, Florida, Broward County, Miami-Dade County, Florida, Miami-Dade County, Monroe County, Florida, Monroe County, and Palm Beach County, Florida, Palm Beach County, a total of about . Description The water-absorbing layers of rock underlying south Florida divide into three layers. The Biscayne Aquifer is closest to the surface and because of this it directly interacts with natural and man-made bodies of surface water, such as streams, lakes, canals and reservoirs. The ground water and the aquifer currently are managed as an integrated water system. Because the top part of the Biscayne aquifer is the water table, this aquifer is known as an Aquifer#Confined versus unconfined, unconfined aquifer. Since it merges with the floor of Biscayne Bay and wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainfall
Rain is a form of precipitation where water droplets that have condensed from atmospheric water vapor fall under gravity. Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth. It provides water for hydroelectric power plants, crop irrigation, and suitable conditions for many types of ecosystems. The major cause of rain production is moisture moving along three-dimensional zones of temperature and moisture contrasts known as weather fronts. If enough moisture and upward motion is present, precipitation falls from convective clouds (those with strong upward vertical motion) such as cumulonimbus (thunder clouds) which can organize into narrow rainbands. In mountainous areas, heavy precipitation is possible where upslope flow is maximized within windward sides of the terrain at elevation which forces moist air to condense and fall out as rainfall along the sides of mountains. On the leeward side of mountains, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drought
A drought is a period of drier-than-normal conditions.Douville, H., K. Raghavan, J. Renwick, R.P. Allan, P.A. Arias, M. Barlow, R. Cerezo-Mota, A. Cherchi, T.Y. Gan, J. Gergis, D. Jiang, A. Khan, W. Pokam Mba, D. Rosenfeld, J. Tierney, and O. Zolina, 2021Water Cycle Changes. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 1055–1210, doi:10.1017/9781009157896.010. A drought can last for days, months or years. Drought often has large impacts on the ecosystems and agriculture of affected regions, and causes harm to the local economy. Annua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streams
A stream is a continuous body of surface water flowing within the bed and banks of a channel. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long, large streams are usually called rivers, while smaller, less voluminous and more intermittent streams are known, amongst others, as brook, creek, rivulet, rill, run, tributary, feeder, freshet, narrow river, and streamlet. The flow of a stream is controlled by three inputs – surface runoff (from precipitation or meltwater), daylighted subterranean water, and surfaced groundwater (spring water). The surface and subterranean water are highly variable between periods of rainfall. Groundwater, on the other hand, has a relatively constant input and is controlled more by long-term patterns of precipitation. The stream encompasses surface, subsurface and groundwater fluxes that respond to geological, geomorphological, hydrological and biotic controls. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
