NASAのインスタグラム(nasa) - 6月20日 08時10分

??? This natural-color image captured May 17 near the coast of Guinea-Bissau in West Africa show estuaries branching out like a network of roots from a plant. With their long tendrils, the rivers meander through the country’s lowland plains to join the Atlantic Ocean. On the way, they carry water, nutrients, but also sediments out from the land.

These estuaries play an important role in agriculture for this small country that is mostly made up of flat terrain. While the coastal valleys can flood often during the rainiest part of the year in the summer, the rain makes the valleys good locations for farming, especially rice cultivation. Using satellite data, researchers continue to observe the country's change in terrain and as a result, they're documenting a regrowth of previously eroded coastal areas.

Credit: NASA/Joshua Stevens/@USGS

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