Kolkata Calcutta India
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Kolkata (Calcutta), India

January 18, 2006
This Envisat ASAR radar multicolor composite image is focused over Kolkata large bright area center left), the capital of the state of West Bengal, India.

The city is a river port located on the eastern bank of the Hugli River, a branch of the Ganges, making it the most important urban center of Eastern India . Its maximum elevation is about 9 meters above sea level.

The image shows topographically that eastward from the river, the land slopes away to marshes and swamplands. Similar topography is seen on the west bank of the river that has confined the metropolitan area to a strip of five to eight kilometers width on either bank of the river.

The principal suburbs of Kolkata are Howrah (on the west bank), Baranagar to the north, South Dum Dum to the northeast, the South Suburban Municipality (Behala) to the south, and Garden Reach in the southwest are also visible.

The image is made of three ASAR images acquired on different dates and assigning a color ( RGB ) to each date.

Dates of Acquisition: Red : 11 January 2004, Green : 30 May 2004, Blue : 24 August 2003

Technical Information:
  • Satellite: Envisat
  • Instrument: ASAR
  • Acquisition: 30-May-2004
  • Orbit nr: 11753
  • Center coordinates: lat. 22.05, lon. 88.64

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