[:ja]セルゲイ・リャザンスキー宇宙飛行士がISSから撮影したアフガニスタンのレギスタン砂漠です。
レギスタン砂漠はアフガニスタン南西部に存在する砂漠で、約15～30mの高さの赤砂の小高い丘、砂で覆われた平野、岩や粘土で覆われた地域からなります。丘の基礎は部分的に安定した古代の横断砂丘であり、西から東へと吹く風とほぼ無限に近い砂の供給により形成されています。レギスタン砂漠は西方向へと延伸を続けており、以前の耕作地にまでその領域を伸ばしています。国際連合環境計画チームの報告によれば、最大100の村が風で飛来する埃や砂によって消える可能性があります。国内北西部には、砂丘が農耕地にまで進行しており、薪の収集や過度の放牧により植生が安定を欠くことで起こったことが原因とされています。
地上の様子はこちらです。
参考文献： Sergey Ryazansky’s Tweet
地球俯瞰画像を見る： LiVEARTH
[Earthview Wonders] No.959: Registan Desert, Afghanistan🇦🇫
Astronaut Sergey Ryazansky captured from ISS .
The Registan Desert or Rigestan Desert, is an extremely arid plateau region located in southwestern Afghanistan. It is a sandy desert consisting of small, red sand hills about 15–30m high, sand-covered plains, and open rocky and clay-covered areas. The underlying base of the hills consists of partly stabilized ancient transverse dunes, reflecting a west-to-east wind and nearly unlimited sand supply. The Registan Desert is migrating westward, encroaching on former agricultural areas. The United Nations Environment Programme team reports that “up to 100 villages have been submerged by windblown dust and sand”. In the country’s northwest, sand dunes are moving onto agricultural land, their path cleared by the loss of stabilizing vegetation from firewood gathering and overgrazing.
The local scenery on the ground is as follows.
Reference: Sergey Ryazansky’s Tweet
See earthview photo gallery: LiVEARTH[:en][Earthview Wonders] No.959: Registan Desert, Afghanistan🇦🇫
Astronaut Sergey Ryazansky captured from ISS .
The Registan Desert or Rigestan Desert, is an extremely arid plateau region located in southwestern Afghanistan. It is a sandy desert consisting of small, red sand hills about 15–30m high, sand-covered plains, and open rocky and clay-covered areas. The underlying base of the hills consists of partly stabilized ancient transverse dunes, reflecting a west-to-east wind and nearly unlimited sand supply. The Registan Desert is migrating westward, encroaching on former agricultural areas. The United Nations Environment Programme team reports that “up to 100 villages have been submerged by windblown dust and sand”. In the country’s northwest, sand dunes are moving onto agricultural land, their path cleared by the loss of stabilizing vegetation from firewood gathering and overgrazing.
The local scenery on the ground is as follows.
Reference: Sergey Ryazansky’s Tweet
See earthview photo gallery: LiVEARTH[:]