WIKIARCHIVES.SPACE

The Perigoso Channel and Amazon River mouth are featured in this image photographed by an Expedition 10 crewmember on the International Space Station (ISS). According to NASA scientists studying the Expedition 10 imagery, between 2000 and 2005 the channel on the west side of the island has shifted to the northwest – by eroding ~200 meters of the mainland shoreline and accreting sediment on the west side of the island, broadly maintaining the width of the channel. The North Channel (right) has been significantly widened. This has resulted in the erosional removal of almost 1 kilometer of the north end of the island, as well narrowing of a smaller island downstream (lower right). A more important but subtler visual effect has been the accumulation of sediment on the upstream (left) two-thirds of the island, accompanied by the establishment of permanent vegetation (dark green).