[:ja]NASAの地球観測衛星TerraがISSから撮影したナミビアと南アフリカの国境付近の砂嵐が大西洋に広がっている様子です。アレクサンダーベイという南アフリカの国境付近の町では、この砂嵐によって、町が赤くなっている様子が捉えられています。
Credit: News24
ちなみに、アフリカ西岸から巻き起こる砂嵐は、地球規模の生態系という視点で見ると意外な役割を担っています。No.116: アフリカの黄砂でも紹介しましたが、アフリカ西岸の黄砂は5千kmもの距離を旅し、なんと大西洋の対岸のアマゾンの熱帯雨林にまで到達し、植物の成長に不可欠なリンを、洪水や自然風化などで傷んだアマゾン地域の土壌に供給していると、NASAの研究で明らかになっています。
参考文献： Dust Streams from Southwestern Africa (NASA Earth Observatory)
地球俯瞰画像を見る： LiVEARTH
[Earthview Wonders] No.748: Dust Streams, South Africa🇿🇦🇳🇦
NASA’s Terra satellite captured from ISS the dust storm spreading th the Atlantic Ocean from South Africa and Namibia. The sky of the city of Alexander Bay turned red on this day due to a thick plume of dust.
Credit: News24
For reference, as introduced in No.116: Dust from Africa, according to NASA, dust from west coast of Africa travels 5,000km over the Atlantic Ocean to reach the Amazon rainforests of South America, and provides essential nutrients such as phosphorous for Amazon soils.
Reference: Dust Streams from Southwestern Africa (NASA Earth Observatory)
See earthview photo gallery: LiVEARTH[:en][Earthview Wonders] No.748: Dust Streams, South Africa🇿🇦🇳🇦
NASA’s Terra satellite captured from ISS the dust storm spreading th the Atlantic Ocean from South Africa and Namibia. The sky of the city of Alexander Bay turned red on this day due to a thick plume of dust.
Credit: News24
For reference, as introduced in No.116: Dust from Africa, according to NASA, dust from west coast of Africa travels 5,000km over the Atlantic Ocean to reach the Amazon rainforests of South America, and provides essential nutrients such as phosphorous for Amazon soils.
Reference: Dust Streams from Southwestern Africa (NASA Earth Observatory)
See earthview photo gallery: LiVEARTH[:]