此外，河流筑坝等工程也增加了沉积物的产量，更不用说大气中二氧化碳和甲烷的增加。
Also, things like the damming of rivers has caused increased sediment production, not to mention the addition of more carbon dioxide and methane in the atmosphere.
这次爆炸将大约100万亿吨的尘埃提升到大气中，这一数字可以通过测量这些尘埃降落到地表时所形成的沉积层的厚度来确定。
The explosion lifted about 100 trillion tons of dust into the atmosphere, as can be determined by measuring the thickness of the sediment layer formed when this dust settled to the surface.
GEOS - 5运用描述物理过程的数学方程(比如沉积过程和成云过程)来模拟大气的变化。
The GEOS-5 model USES mathematical equations that represent physical processes-such as precipitation and cloud processes-to calculate what the atmosphere will do.
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