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Tata
Tea's plantations in North India are located in the northern
part of West Bengal and in the State of Assam.
The
estates in North Bengal are located in an area known as
the Dooars and approximately between 50km and 70km from
the town of Siliguri (26º54N 88º32E). The tea
estates are situated on the Dooars plateau which has an
elevation of 230m above mean sea level.
The
estates of Assam are scattered over the entire Brahmaputra
Valley and, for the sake of convenience, have been classified
into Upper Assam, North Bank and South Bank estates.
The
Company has seven tea estates in Upper Assam located near
the town of Dibrugarh (27º16N 92ºE) at an elevation
of approximately 180m above mean sea level. The distance
of the estates from Dibrugarh varies from 10km to 120km.
The
estates in the North Bank, as suggested by the name, are
located on the Northern Bank of the Brahmaputra River and
are accessible through the town of Tezpur (26º48N 92º43E)
and Guwahati (26º5N92ºE). The distance of the
four tea estates from Tezpur varies between 50km and 160km.
The
estates of the South Bank are located on the Southern Bank
of the Brahmaputra River and their distance from the town
of Jorhat (26º47N 12ºE) varies between 25km and
220km.
The
elevation of the tea estates located on the North and South
Banks varies between 90m and 95m above mean sea level.
The
terrain of the Brahmaputra Valley is normally flat and subject
to frequent floods. Low hills are present in the Upper Assam
area but all the tea estates are located on slopes which
are optimal for drainage of water, necessary for ideal tea
growing conditions.
The
temperatures in Assam and North Bengal seldom rise above
32ºC or drop below 8ºC. The rainfall is maximum
in the Dooars area (average 4000mm) and varies between 2000
mm and 2700 mm in the Assam region. Humidity, however, is
high throughout the year with a maximum of 97% and minimum
of 48%.
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