Nasa shares satellite images of world’s most remote island Tristan da Cunha – The Times of India

2 minutes, 8 seconds Read

Nasa shared satelite pictures of World’s most remote inhabited island Tristan da Cunha. The images were captured by the OLI-2 (Operational Land Imager-2)on Landsat 9 satellite.
Tristan da Cunha, frequently described as the world’s most isolated inhabited island, is the youngest and largest among the group situated in the South Atlantic Ocean, roughly equidistant from the southernmost points of South America and Africa.It is a place where the population of seabirds surpasses that of humans.
Queen Mary’s Peak, the highest point on Tristan da Cunha, rises up to 2,060 meters (6,760 feet) above sea level. The peak has steep gullies that extend downward in all directions from its summit.
The island’s vegetation is organized into distinct zones that correspond to the height on which it’s found. According to the Royal Botanic Gardens, Kew, the coastal fringes of the island were once covered by large tussock-forming grasses, but most of this area has been converted into pasture. The lower slopes of the volcano are covered by woodlands of Phylica arborea, also known as island cape myrtle (dark green). As the elevation increases, the vegetation transitions into ecosystems that include tree ferns, sphagnum moss, small grasses, bryophytes, and lichens (light green).
In the waters surrounding the islands, vast underwater forests of giant kelp can be found according to Nasa. The kelp species, “Macrocystis pyrifera,” is known for its exceptional growth rate, making it one of the fastest-growing seaweeds globally. Although suspended sediment may cause discoloration in some parts of the water, indications of kelp forests (visible in green) can be observed in several areas close to the shore.
On the Island’s north, Edinburgh of the Seven Seas, a tiny settlement is home to approximately 240 individuals. The primary industries in the area are agriculture and fishing. A significant number of inhabitants engage in the harvesting of crayfish, which is marketed under the name “Tristan rock lobster.” Additionally, they cultivate potatoes and raise farm animals. The island, which is small and round, is a haven for a wide variety of bird species. In areas far from the town, there are substantial colonies of northern rockhopper penguins, Atlantic yellow-nosed albatross, and broad-billed prion that make their nests on the island.
Tristan da Cunha came into existence approximately 200,000 years ago as a result of volcanic activity along with other islands in the group. In October 1961, the island experienced its most recent eruption, which led to the evacuation of its inhabitants.
Meanwhile, according to radiometric dating techniques, Nightingale Island is the oldest among the three primary islands, with its volcanic rocks dating back between 360,000 and 18 million years.

This post was originally published on 3rd party site mentioned in the title this site

Similar Posts