Saturday, September 10, 2011

Calcutta, India

This Envisat ASAR radar multicolour composite image is focused over Kolkata (large bright area centre 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 metres 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 colour ( RGB ) to each date.

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

No comments:

Post a Comment