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Brackish water is water that is saltier than fresh water, but not as salty as sea water. It may result from mixing of seawater with fresh water, as in estuaries, or it may occur naturally, as in brackish fossil aquifers. Technically, brackish water contains between 0.5 and 30 grams of salt per litre—more often expressed as 0.5 to 30 parts per thousand (ppt or ‰). Thus, brackish covers a range of salinity regimes and is not considered a precisely defined condition. It is characteristic of many brackish surface waters that their salinity can vary considerably over space and/or time.1 Etymology
The term brackish water derives from the Low Saxon word brackwater, which is the water of a brack. A brack is a small lake created when a storm tide breaks a dike and floods land behind the dike.
1 Brackish bodies of water
- Lake Pontchartrain north of New Orleans, Louisiana
- Pulicat LakePulicat Lake is a brackish-water lake on the Coromandel Coast of southeastern India. It lies at the border of Tamil Nadu and Andhra Pradesh states, 60 km north of Chennai. The barrier island of Sriharikote separates the lake from the Bay of Bengal. Srihar, north of ChennaiChennai in Tamil), formerly known in English as Madras is a sprawling port city on the shores of the Bay of Bengal. One of the major Metropolitan cities of India, it is also the capital of Tamil Nadu state in southern India. It is India's fourth largest c, IndiaThe Republic of India is a large multicultural country in South Asia, with a population of over one billion. The Indian economy is the fourth largest in the world, in terms of purchasing power parity, and is the world's second-fastest growing economy.
- Kaliveli LakeKaliveli Lake is a brackish-water coastal lake in Viluppuram District of Tamil Nadu, India. The lake is approximately 16 km north of Pondicherry and 10 km north of Auroville, near the Bay of Bengal. Kaliveli lake is one of the largest wetlands in peninsul, near Pondichery, IndiaThe Republic of India is a large multicultural country in South Asia, with a population of over one billion. The Indian economy is the fourth largest in the world, in terms of purchasing power parity, and is the world's second-fastest growing economy.
- Chilka LakeChilka Lake (also Chilika Lake is a brackish water coastal lake in India's Orissa state, south of the mouth of the Mahanadi River. It is the largest coastal lake in India. It is separated from the Bay of Bengal by a narrow sandy spit. The area of the lake, in OrissaOrissa is a state situated in the east coast of India. Orissa is bounded on the north by Bihar, on the north-east by West Bengal, on the east by the Bay of Bengal, on the south by Andhra Pradesh and on the west by Chhattisgarh. The Eastern Ghats range and state, India
- The Rann of Kutch on the border of India and Pakistan
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2 See also
Forms of water
