苏莱曼山的雾霾

An astronaut aboard the International Space Station took this oblique photograph of the Sulaiman Mountains in central Pakistan. The range resulted from the slow-motion collision of the Indian and Eurasian tectonic plates that began about 60 million years ago. Peaks rise to more than 3,000 meters (10,000 feet) above sea level in the northern portion of the mountain range, shown in this photograph.
NASA

An astronaut aboard the International Space Station took this Dec. 17, 2023, photograph of the Sulaiman Mountains in central Pakistan. The Sulaiman Mountains form a natural barrier between the plateaus to the west and the Indus River Valley to the east. Winds blowing from the Indian Ocean and Indus floodplain carry moisture and particulates inland, causing a combination of haze, mist, and clouds to form on the windward side of the mountain range.

A unique attribute of astronaut photography of Earth is the crew member’s ability to highlight features of the landscape by taking photos from perspectives other than straight-down (nadir). This photo leverages an oblique view to highlight the ruggedness of the Sulaiman Mountains by accentuating shadows created by the topography.

To celebrate its 25th anniversary, NASA Earth Observatory (EO) has gathered 25 of their favorite images and data visualizations. Since EO’s launch on April 29, 1999, the site has hosted more than 18,000 image-driven stories, featuring everything from the newest satellite imagery to decades-long records of change.

Text Credit: Cadan Cummings

Image Credit: NASA

国际空间站上的一名宇航员拍摄了这张倾斜的巴基斯坦中部苏莱曼山脉的照片。这个山脉是6000万年前印度板块和欧亚板块缓慢碰撞的结果。在这张照片中，山脉北部的山峰海拔超过3,000米（10,000英尺）。
NASA

2023年12月17日，国际空间站上的一名宇航员拍摄了这张巴基斯坦中部苏莱曼山脉的照片。苏莱曼山脉形成了西部高原和东部印度河流域之间的天然屏障。来自印度洋和印度河泛滥平原的风将湿气和颗粒物带到内陆，导致雾霾、薄雾和云层在山脉的迎风面形成。

宇航员拍摄地球照片的一个独特之处在于，宇航员能够通过不同于垂直拍摄（最低点）的视角来突出景观的特征。这张照片利用倾斜的视角，通过突出地形产生的阴影来突出苏莱曼山脉的崎岖不平。

为了庆祝成立25周年，NASA地球观测站（EO）收集了25张他们最喜欢的图像和数据可视化。自1999年4月29日EO上线以来，该网站已经举办了超过18,000个由图像驱动的故事，内容包罗万象，从最新的卫星图像到长达数十年的变化记录。

文字来源：Cadan Cummings

图片来源：NASA