[:ja]NASAの地球観測衛星Terraが撮影したグリーンランド、イトコルトルミット付近の氷河粉です。

Credit: NASA

グリーンランドの強風は時として乾燥した川や湖からダストを巻き上げます。画像はglacial flour(ロックフラワー、氷河が削った岩の粉)が舞い上がっている様子です。この氷河フラワーは細かく、摩擦によって生じたようなシルト(砂より小さく粘土より粗い砕屑物)のことで、氷河の流れに よって流れ、氷河の川に沈澱します。

参考文献: ‘s Tweet
地球俯瞰画像を見る: LiVEARTH

[Earthview Wonders] No.793: Glacier Flour, Greenland🇬🇱

NASA’s Terra satellite captured the Glacier Flour of Greenland.

Credit: NASA

Winds in Greenland are occasionally strong enough to send plumes of sediment streaming from dried-out lakes, river valleys, and outwash plains along the coasts. The dust in Greenland is mainly glacial flour, a fine-grained silt formed by glaciers grinding and pulverizing rock. The image shows a sizable silt plume streaming from Greenland’s east coast.

Reference: ‘s Tweet
See earthview photo gallery: LiVEARTH[:en][Earthview Wonders] No.793: Glacier Flour, Greenland🇬🇱

NASA’s Terra satellite captured the Glacier Flour of Greenland.

Credit: NASA

Winds in Greenland are occasionally strong enough to send plumes of sediment streaming from dried-out lakes, river valleys, and outwash plains along the coasts. The dust in Greenland is mainly glacial flour, a fine-grained silt formed by glaciers grinding and pulverizing rock. The image shows a sizable silt plume streaming from Greenland’s east coast.

Reference: ‘s Tweet
See earthview photo gallery: LiVEARTH[:]