[:ja]アレックス・ゲルスト宇宙飛行士がISSから撮影したボリビア中央部です。グランデ川の河川敷の砂埃が舞って、川が煙を吐いているように見えます。

ボリビアでは、ウユニ塩湖の砂埃が舞って広がることがあり、観測されています(“Dust Storm over Southern Bolivia”)が、この画像のように、河床あるいは河川敷の砂が風に舞うこともあります。
グランデ川の地上の様子はこちらです。

参考文献: Alex Gerst’s Tweet
地球俯瞰画像を見る: LiVEARTH
[Earthview Wonders] No.645: Bolivia🇧🇴
Astronaut Alex Gerst captured from ISS “the smoking rivers” of central Bolivia.

The image shows that smaller plumes arise from the riverbeds of Grande River. Dusts from Uyuni Salt Flat are observed in the past (“Dust Storm over Southern Bolivia”), but the dusts are also blown upward by strong winds.
The local scenery on the ground is as follows.

Reference: Alex Gerst’s Tweet
See earthview photo gallery: LiVEARTH[:en][Earthview Wonders] No.645: Bolivia🇧🇴
Astronaut Alex Gerst captured from ISS “the smoking rivers” of central Bolivia.

The image shows that smaller plumes arise from the riverbeds of Grande River. Dusts from Uyuni Salt Flat are observed in the past (“Dust Storm over Southern Bolivia”), but the dusts are also blown upward by strong winds.
The local scenery on the ground is as follows.

Reference: Alex Gerst’s Tweet
See earthview photo gallery: LiVEARTH[:]