Earth Snapshot RSS Feed Twitter
 
 
 
 

Posts tagged Swamps

Ob River Crossing West Siberian Plain, Russia

53.3N 82.9E

April 8th, 2010 Category: Rivers

Russia - March 5th, 2010

Russia - March 5th, 2010

The West Siberian Plain is a large plain that occupies the western portion of Siberia and Russia. Much of the plain is poorly drained and consists of some of the world’s largest swamps and floodplains. In fact, it is one of the world’s largest areas of peatlands, which are characterized by raised bogs. Here some of those marshy areas appear as greyish streaks across the white, snow-covered landscape.

The plain covers an area of more than 975,000 sq.mi. It has been described as the world’s largest unbroken lowland—more than 50 percent is less than 330 feet (100 m) above sea level— and covers an area of about 2.6–2.7 million km² which is about one third of Siberia. It extends from north to south for 2,400 km, from the Arctic Ocean to the foothills of the Altay Mountains, and from west to east for 1,900 km from the Yenisei River to the Ural Mountains.

The principal rivers in the West Siberian Plain are the Ob, Irtysh, and Yenisei. Here, the Ob River is visible in the upper right quadrant. Glacial deposits on the plain extend as far south as the Ob-Irtysh confluence, forming occasional low hills and ridges, but otherwise the plain is exceedingly flat and featureless.

Makaham River and Delta in Borneo, Indonesia

0.5S 117.1E

January 18th, 2010 Category: Rivers

Indonesia - December 31st, 2009

Indonesia - December 31st, 2009

The Mahakam River appears as a black ribbon in this orthorectified image, meandering down from the highlands of Borneo, in Indonesia, towards the Makassar Strait. Along its course it passes the cities of Tenggarong (left) and Samarinda (right). Before spilling into the strait, it branches out into a fan-shaped delta along the coastline.

The Mahakam delta is a mixed fluvial-tidal dominated delta. The delta covers about 1800 km2, consisting of mangrove areas near the shore, Nypa swamps in the central areas, and lowland forest near the apex, corresponding to the first bifurcation, however, recent fishery development in this area has converted a vast area of mangrove into shrimp ponds (tambak).

The delta has three main distributaries system directed Northeast, Southeast and South. The area between distributaries consists of a series of tidal channels generally unconnected to the main distributaries. The distributary channels are narrow and rectilinear with the depth ranging from 8 to 15 m and distributary channel bifurcations appear every 10 to 15 km.

About Us

Earth Observation

Organisations

Archive

October 2019
M T W T F S S
« Mar    
 123456
78910111213
14151617181920
21222324252627
28293031  

Categories


Bulletin Board


Featured Posts

Information

41


Take Action

Widgets