Earth from Space: Amazon River
Hi I’m Kelsea Brennan-Wesselsand welcome back to Earth from Spaceon the European Space Agency Web TV. The Copernicus Sentinel-2A satellitetakes us over northern Brazil on 22 August 2017,where the Amazon River meets the Atlantic Ocean. The sediment-laden water appears brownas it flows from the lower left to the openocean in the upper right. ‘Popcorn’ clouds are visible in partsof the image –a common occurrence during the Amazon’sdry season,formed by condensed water vapour releasedby plants and treesduring a sunny day. The land varies in colour from the deep greenof dense vegetationto light brown. Taking a closer look to the upper-left sectionof the image,we can see large brown areaswhere the vegetation has already been cleared away. Geometric shapes indicate agricultural fields,and linear roads cut through the remainingdense vegetation. Rainforests worldwide are being destroyedat an alarming rate. This is of great concern because they playan important role in global climate,and are home to a wide variety of plants,animals and insects. More than a third of all species in the worldlive in the Amazon Rainforest. Unlike other forests, rainforests have difficultyregrowing after they are destroyed and,owing to their composition,their soils are not suitable for long-termagricultural use. With their unique view from space,Earth observation satellites have been instrumentalin highlighting the vulnerability of the rainforestsby documenting the scale of deforestation. And that wraps up this edition of Earth from Space. Remember that to learn more about space orabout our planet,you can visit our website at www. esa. int. From the ESA Web-TV studios, have a great day.